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| 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 var EXPECTED_OUTPUT = 'sum:8930\n'; |
| 6 var Module = { |
| 7 arguments: [1], |
| 8 print: function(x) {Module.printBuffer += x + '\n';}, |
| 9 preRun: [function() {Module.printBuffer = ''}], |
| 10 postRun: [function() { |
| 11 assertEquals(EXPECTED_OUTPUT, Module.printBuffer); |
| 12 }], |
| 13 }; |
| 14 // The Module object: Our interface to the outside world. We import |
| 15 // and export values on it, and do the work to get that through |
| 16 // closure compiler if necessary. There are various ways Module can be used: |
| 17 // 1. Not defined. We create it here |
| 18 // 2. A function parameter, function(Module) { ..generated code.. } |
| 19 // 3. pre-run appended it, var Module = {}; ..generated code.. |
| 20 // 4. External script tag defines var Module. |
| 21 // We need to do an eval in order to handle the closure compiler |
| 22 // case, where this code here is minified but Module was defined |
| 23 // elsewhere (e.g. case 4 above). We also need to check if Module |
| 24 // already exists (e.g. case 3 above). |
| 25 // Note that if you want to run closure, and also to use Module |
| 26 // after the generated code, you will need to define var Module = {}; |
| 27 // before the code. Then that object will be used in the code, and you |
| 28 // can continue to use Module afterwards as well. |
| 29 var Module; |
| 30 if (!Module) Module = (typeof Module !== 'undefined' ? Module : null) || {}; |
| 31 |
| 32 // Sometimes an existing Module object exists with properties |
| 33 // meant to overwrite the default module functionality. Here |
| 34 // we collect those properties and reapply _after_ we configure |
| 35 // the current environment's defaults to avoid having to be so |
| 36 // defensive during initialization. |
| 37 var moduleOverrides = {}; |
| 38 for (var key in Module) { |
| 39 if (Module.hasOwnProperty(key)) { |
| 40 moduleOverrides[key] = Module[key]; |
| 41 } |
| 42 } |
| 43 |
| 44 // The environment setup code below is customized to use Module. |
| 45 // *** Environment setup code *** |
| 46 var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'fun
ction'; |
| 47 var ENVIRONMENT_IS_WEB = typeof window === 'object'; |
| 48 var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function'; |
| 49 var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIR
ONMENT_IS_WORKER; |
| 50 |
| 51 if (ENVIRONMENT_IS_NODE) { |
| 52 // Expose functionality in the same simple way that the shells work |
| 53 // Note that we pollute the global namespace here, otherwise we break in node |
| 54 if (!Module['print']) Module['print'] = function print(x) { |
| 55 process['stdout'].write(x + '\n'); |
| 56 }; |
| 57 if (!Module['printErr']) Module['printErr'] = function printErr(x) { |
| 58 process['stderr'].write(x + '\n'); |
| 59 }; |
| 60 |
| 61 var nodeFS = require('fs'); |
| 62 var nodePath = require('path'); |
| 63 |
| 64 Module['read'] = function read(filename, binary) { |
| 65 filename = nodePath['normalize'](filename); |
| 66 var ret = nodeFS['readFileSync'](filename); |
| 67 // The path is absolute if the normalized version is the same as the resolve
d. |
| 68 if (!ret && filename != nodePath['resolve'](filename)) { |
| 69 filename = path.join(__dirname, '..', 'src', filename); |
| 70 ret = nodeFS['readFileSync'](filename); |
| 71 } |
| 72 if (ret && !binary) ret = ret.toString(); |
| 73 return ret; |
| 74 }; |
| 75 |
| 76 Module['readBinary'] = function readBinary(filename) { return Module['read'](f
ilename, true) }; |
| 77 |
| 78 Module['load'] = function load(f) { |
| 79 globalEval(read(f)); |
| 80 }; |
| 81 |
| 82 Module['arguments'] = process['argv'].slice(2); |
| 83 |
| 84 module['exports'] = Module; |
| 85 } |
| 86 else if (ENVIRONMENT_IS_SHELL) { |
| 87 if (!Module['print']) Module['print'] = print; |
| 88 if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not pres
ent in v8 or older sm |
| 89 |
| 90 if (typeof read != 'undefined') { |
| 91 Module['read'] = read; |
| 92 } else { |
| 93 Module['read'] = function read() { throw 'no read() available (jsc?)' }; |
| 94 } |
| 95 |
| 96 Module['readBinary'] = function readBinary(f) { |
| 97 return read(f, 'binary'); |
| 98 }; |
| 99 |
| 100 if (typeof scriptArgs != 'undefined') { |
| 101 Module['arguments'] = scriptArgs; |
| 102 } else if (typeof arguments != 'undefined') { |
| 103 Module['arguments'] = arguments; |
| 104 } |
| 105 |
| 106 this['Module'] = Module; |
| 107 |
| 108 eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') >
0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, whic
h can confuse closure (uses it as a minified name, and it is then initted to a n
on-falsey value unexpectedly) |
| 109 } |
| 110 else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { |
| 111 Module['read'] = function read(url) { |
| 112 var xhr = new XMLHttpRequest(); |
| 113 xhr.open('GET', url, false); |
| 114 xhr.send(null); |
| 115 return xhr.responseText; |
| 116 }; |
| 117 |
| 118 if (typeof arguments != 'undefined') { |
| 119 Module['arguments'] = arguments; |
| 120 } |
| 121 |
| 122 if (typeof console !== 'undefined') { |
| 123 if (!Module['print']) Module['print'] = function print(x) { |
| 124 console.log(x); |
| 125 }; |
| 126 if (!Module['printErr']) Module['printErr'] = function printErr(x) { |
| 127 console.log(x); |
| 128 }; |
| 129 } else { |
| 130 // Probably a worker, and without console.log. We can do very little here... |
| 131 var TRY_USE_DUMP = false; |
| 132 if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "
undefined") ? (function(x) { |
| 133 dump(x); |
| 134 }) : (function(x) { |
| 135 // self.postMessage(x); // enable this if you want stdout to be sent as me
ssages |
| 136 })); |
| 137 } |
| 138 |
| 139 if (ENVIRONMENT_IS_WEB) { |
| 140 window['Module'] = Module; |
| 141 } else { |
| 142 Module['load'] = importScripts; |
| 143 } |
| 144 } |
| 145 else { |
| 146 // Unreachable because SHELL is dependant on the others |
| 147 throw 'Unknown runtime environment. Where are we?'; |
| 148 } |
| 149 |
| 150 function globalEval(x) { |
| 151 eval.call(null, x); |
| 152 } |
| 153 if (!Module['load'] == 'undefined' && Module['read']) { |
| 154 Module['load'] = function load(f) { |
| 155 globalEval(Module['read'](f)); |
| 156 }; |
| 157 } |
| 158 if (!Module['print']) { |
| 159 Module['print'] = function(){}; |
| 160 } |
| 161 if (!Module['printErr']) { |
| 162 Module['printErr'] = Module['print']; |
| 163 } |
| 164 if (!Module['arguments']) { |
| 165 Module['arguments'] = []; |
| 166 } |
| 167 // *** Environment setup code *** |
| 168 |
| 169 // Closure helpers |
| 170 Module.print = Module['print']; |
| 171 Module.printErr = Module['printErr']; |
| 172 |
| 173 // Callbacks |
| 174 Module['preRun'] = []; |
| 175 Module['postRun'] = []; |
| 176 |
| 177 // Merge back in the overrides |
| 178 for (var key in moduleOverrides) { |
| 179 if (moduleOverrides.hasOwnProperty(key)) { |
| 180 Module[key] = moduleOverrides[key]; |
| 181 } |
| 182 } |
| 183 |
| 184 |
| 185 |
| 186 // === Auto-generated preamble library stuff === |
| 187 |
| 188 //======================================== |
| 189 // Runtime code shared with compiler |
| 190 //======================================== |
| 191 |
| 192 var Runtime = { |
| 193 stackSave: function () { |
| 194 return STACKTOP; |
| 195 }, |
| 196 stackRestore: function (stackTop) { |
| 197 STACKTOP = stackTop; |
| 198 }, |
| 199 forceAlign: function (target, quantum) { |
| 200 quantum = quantum || 4; |
| 201 if (quantum == 1) return target; |
| 202 if (isNumber(target) && isNumber(quantum)) { |
| 203 return Math.ceil(target/quantum)*quantum; |
| 204 } else if (isNumber(quantum) && isPowerOfTwo(quantum)) { |
| 205 return '(((' +target + ')+' + (quantum-1) + ')&' + -quantum + ')'; |
| 206 } |
| 207 return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum; |
| 208 }, |
| 209 isNumberType: function (type) { |
| 210 return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES; |
| 211 }, |
| 212 isPointerType: function isPointerType(type) { |
| 213 return type[type.length-1] == '*'; |
| 214 }, |
| 215 isStructType: function isStructType(type) { |
| 216 if (isPointerType(type)) return false; |
| 217 if (isArrayType(type)) return true; |
| 218 if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true; // { i32, i8 } etc. - anonymo
us struct types |
| 219 // See comment in isStructPointerType() |
| 220 return type[0] == '%'; |
| 221 }, |
| 222 INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0}, |
| 223 FLOAT_TYPES: {"float":0,"double":0}, |
| 224 or64: function (x, y) { |
| 225 var l = (x | 0) | (y | 0); |
| 226 var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 42949672
96; |
| 227 return l + h; |
| 228 }, |
| 229 and64: function (x, y) { |
| 230 var l = (x | 0) & (y | 0); |
| 231 var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 42949672
96; |
| 232 return l + h; |
| 233 }, |
| 234 xor64: function (x, y) { |
| 235 var l = (x | 0) ^ (y | 0); |
| 236 var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 42949672
96; |
| 237 return l + h; |
| 238 }, |
| 239 getNativeTypeSize: function (type) { |
| 240 switch (type) { |
| 241 case 'i1': case 'i8': return 1; |
| 242 case 'i16': return 2; |
| 243 case 'i32': return 4; |
| 244 case 'i64': return 8; |
| 245 case 'float': return 4; |
| 246 case 'double': return 8; |
| 247 default: { |
| 248 if (type[type.length-1] === '*') { |
| 249 return Runtime.QUANTUM_SIZE; // A pointer |
| 250 } else if (type[0] === 'i') { |
| 251 var bits = parseInt(type.substr(1)); |
| 252 assert(bits % 8 === 0); |
| 253 return bits/8; |
| 254 } else { |
| 255 return 0; |
| 256 } |
| 257 } |
| 258 } |
| 259 }, |
| 260 getNativeFieldSize: function (type) { |
| 261 return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE); |
| 262 }, |
| 263 dedup: function dedup(items, ident) { |
| 264 var seen = {}; |
| 265 if (ident) { |
| 266 return items.filter(function(item) { |
| 267 if (seen[item[ident]]) return false; |
| 268 seen[item[ident]] = true; |
| 269 return true; |
| 270 }); |
| 271 } else { |
| 272 return items.filter(function(item) { |
| 273 if (seen[item]) return false; |
| 274 seen[item] = true; |
| 275 return true; |
| 276 }); |
| 277 } |
| 278 }, |
| 279 set: function set() { |
| 280 var args = typeof arguments[0] === 'object' ? arguments[0] : arguments; |
| 281 var ret = {}; |
| 282 for (var i = 0; i < args.length; i++) { |
| 283 ret[args[i]] = 0; |
| 284 } |
| 285 return ret; |
| 286 }, |
| 287 STACK_ALIGN: 8, |
| 288 getAlignSize: function (type, size, vararg) { |
| 289 // we align i64s and doubles on 64-bit boundaries, unlike x86 |
| 290 if (!vararg && (type == 'i64' || type == 'double')) return 8; |
| 291 if (!type) return Math.min(size, 8); // align structures internally to 64 bi
ts |
| 292 return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runti
me.QUANTUM_SIZE); |
| 293 }, |
| 294 calculateStructAlignment: function calculateStructAlignment(type) { |
| 295 type.flatSize = 0; |
| 296 type.alignSize = 0; |
| 297 var diffs = []; |
| 298 var prev = -1; |
| 299 var index = 0; |
| 300 type.flatIndexes = type.fields.map(function(field) { |
| 301 index++; |
| 302 var size, alignSize; |
| 303 if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) { |
| 304 size = Runtime.getNativeTypeSize(field); // pack char; char; in structs,
also char[X]s. |
| 305 alignSize = Runtime.getAlignSize(field, size); |
| 306 } else if (Runtime.isStructType(field)) { |
| 307 if (field[1] === '0') { |
| 308 // this is [0 x something]. When inside another structure like here, i
t must be at the end, |
| 309 // and it adds no size |
| 310 // XXX this happens in java-nbody for example... assert(index === type
.fields.length, 'zero-length in the middle!'); |
| 311 size = 0; |
| 312 if (Types.types[field]) { |
| 313 alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize)
; |
| 314 } else { |
| 315 alignSize = type.alignSize || QUANTUM_SIZE; |
| 316 } |
| 317 } else { |
| 318 size = Types.types[field].flatSize; |
| 319 alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize); |
| 320 } |
| 321 } else if (field[0] == 'b') { |
| 322 // bN, large number field, like a [N x i8] |
| 323 size = field.substr(1)|0; |
| 324 alignSize = 1; |
| 325 } else if (field[0] === '<') { |
| 326 // vector type |
| 327 size = alignSize = Types.types[field].flatSize; // fully aligned |
| 328 } else if (field[0] === 'i') { |
| 329 // illegal integer field, that could not be legalized because it is an i
nternal structure field |
| 330 // it is ok to have such fields, if we just use them as markers of field
size and nothing more complex |
| 331 size = alignSize = parseInt(field.substr(1))/8; |
| 332 assert(size % 1 === 0, 'cannot handle non-byte-size field ' + field); |
| 333 } else { |
| 334 assert(false, 'invalid type for calculateStructAlignment'); |
| 335 } |
| 336 if (type.packed) alignSize = 1; |
| 337 type.alignSize = Math.max(type.alignSize, alignSize); |
| 338 var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary,
place this on aligned memory |
| 339 type.flatSize = curr + size; |
| 340 if (prev >= 0) { |
| 341 diffs.push(curr-prev); |
| 342 } |
| 343 prev = curr; |
| 344 return curr; |
| 345 }); |
| 346 if (type.name_ && type.name_[0] === '[') { |
| 347 // arrays have 2 elements, so we get the proper difference. then we scale
here. that way we avoid |
| 348 // allocating a potentially huge array for [999999 x i8] etc. |
| 349 type.flatSize = parseInt(type.name_.substr(1))*type.flatSize/2; |
| 350 } |
| 351 type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize); |
| 352 if (diffs.length == 0) { |
| 353 type.flatFactor = type.flatSize; |
| 354 } else if (Runtime.dedup(diffs).length == 1) { |
| 355 type.flatFactor = diffs[0]; |
| 356 } |
| 357 type.needsFlattening = (type.flatFactor != 1); |
| 358 return type.flatIndexes; |
| 359 }, |
| 360 generateStructInfo: function (struct, typeName, offset) { |
| 361 var type, alignment; |
| 362 if (typeName) { |
| 363 offset = offset || 0; |
| 364 type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typ
eName]; |
| 365 if (!type) return null; |
| 366 if (type.fields.length != struct.length) { |
| 367 printErr('Number of named fields must match the type for ' + typeName +
': possibly duplicate struct names. Cannot return structInfo'); |
| 368 return null; |
| 369 } |
| 370 alignment = type.flatIndexes; |
| 371 } else { |
| 372 var type = { fields: struct.map(function(item) { return item[0] }) }; |
| 373 alignment = Runtime.calculateStructAlignment(type); |
| 374 } |
| 375 var ret = { |
| 376 __size__: type.flatSize |
| 377 }; |
| 378 if (typeName) { |
| 379 struct.forEach(function(item, i) { |
| 380 if (typeof item === 'string') { |
| 381 ret[item] = alignment[i] + offset; |
| 382 } else { |
| 383 // embedded struct |
| 384 var key; |
| 385 for (var k in item) key = k; |
| 386 ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], align
ment[i]); |
| 387 } |
| 388 }); |
| 389 } else { |
| 390 struct.forEach(function(item, i) { |
| 391 ret[item[1]] = alignment[i]; |
| 392 }); |
| 393 } |
| 394 return ret; |
| 395 }, |
| 396 dynCall: function (sig, ptr, args) { |
| 397 if (args && args.length) { |
| 398 if (!args.splice) args = Array.prototype.slice.call(args); |
| 399 args.splice(0, 0, ptr); |
| 400 return Module['dynCall_' + sig].apply(null, args); |
| 401 } else { |
| 402 return Module['dynCall_' + sig].call(null, ptr); |
| 403 } |
| 404 }, |
| 405 functionPointers: [], |
| 406 addFunction: function (func) { |
| 407 for (var i = 0; i < Runtime.functionPointers.length; i++) { |
| 408 if (!Runtime.functionPointers[i]) { |
| 409 Runtime.functionPointers[i] = func; |
| 410 return 2*(1 + i); |
| 411 } |
| 412 } |
| 413 throw 'Finished up all reserved function pointers. Use a higher value for RE
SERVED_FUNCTION_POINTERS.'; |
| 414 }, |
| 415 removeFunction: function (index) { |
| 416 Runtime.functionPointers[(index-2)/2] = null; |
| 417 }, |
| 418 getAsmConst: function (code, numArgs) { |
| 419 // code is a constant string on the heap, so we can cache these |
| 420 if (!Runtime.asmConstCache) Runtime.asmConstCache = {}; |
| 421 var func = Runtime.asmConstCache[code]; |
| 422 if (func) return func; |
| 423 var args = []; |
| 424 for (var i = 0; i < numArgs; i++) { |
| 425 args.push(String.fromCharCode(36) + i); // $0, $1 etc |
| 426 } |
| 427 var source = Pointer_stringify(code); |
| 428 if (source[0] === '"') { |
| 429 // tolerate EM_ASM("..code..") even though EM_ASM(..code..) is correct |
| 430 if (source.indexOf('"', 1) === source.length-1) { |
| 431 source = source.substr(1, source.length-2); |
| 432 } else { |
| 433 // something invalid happened, e.g. EM_ASM("..code($0)..", input) |
| 434 abort('invalid EM_ASM input |' + source + '|. Please use EM_ASM(..code..
) (no quotes) or EM_ASM({ ..code($0).. }, input) (to input values)'); |
| 435 } |
| 436 } |
| 437 try { |
| 438 var evalled = eval('(function(' + args.join(',') + '){ ' + source + ' })')
; // new Function does not allow upvars in node |
| 439 } catch(e) { |
| 440 Module.printErr('error in executing inline EM_ASM code: ' + e + ' on: \n\n
' + source + '\n\nwith args |' + args + '| (make sure to use the right one out o
f EM_ASM, EM_ASM_ARGS, etc.)'); |
| 441 throw e; |
| 442 } |
| 443 return Runtime.asmConstCache[code] = evalled; |
| 444 }, |
| 445 warnOnce: function (text) { |
| 446 if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {}; |
| 447 if (!Runtime.warnOnce.shown[text]) { |
| 448 Runtime.warnOnce.shown[text] = 1; |
| 449 Module.printErr(text); |
| 450 } |
| 451 }, |
| 452 funcWrappers: {}, |
| 453 getFuncWrapper: function (func, sig) { |
| 454 assert(sig); |
| 455 if (!Runtime.funcWrappers[func]) { |
| 456 Runtime.funcWrappers[func] = function dynCall_wrapper() { |
| 457 return Runtime.dynCall(sig, func, arguments); |
| 458 }; |
| 459 } |
| 460 return Runtime.funcWrappers[func]; |
| 461 }, |
| 462 UTF8Processor: function () { |
| 463 var buffer = []; |
| 464 var needed = 0; |
| 465 this.processCChar = function (code) { |
| 466 code = code & 0xFF; |
| 467 |
| 468 if (buffer.length == 0) { |
| 469 if ((code & 0x80) == 0x00) { // 0xxxxxxx |
| 470 return String.fromCharCode(code); |
| 471 } |
| 472 buffer.push(code); |
| 473 if ((code & 0xE0) == 0xC0) { // 110xxxxx |
| 474 needed = 1; |
| 475 } else if ((code & 0xF0) == 0xE0) { // 1110xxxx |
| 476 needed = 2; |
| 477 } else { // 11110xxx |
| 478 needed = 3; |
| 479 } |
| 480 return ''; |
| 481 } |
| 482 |
| 483 if (needed) { |
| 484 buffer.push(code); |
| 485 needed--; |
| 486 if (needed > 0) return ''; |
| 487 } |
| 488 |
| 489 var c1 = buffer[0]; |
| 490 var c2 = buffer[1]; |
| 491 var c3 = buffer[2]; |
| 492 var c4 = buffer[3]; |
| 493 var ret; |
| 494 if (buffer.length == 2) { |
| 495 ret = String.fromCharCode(((c1 & 0x1F) << 6) | (c2 & 0x3F)); |
| 496 } else if (buffer.length == 3) { |
| 497 ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6) | (c
3 & 0x3F)); |
| 498 } else { |
| 499 // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae |
| 500 var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) | |
| 501 ((c3 & 0x3F) << 6) | (c4 & 0x3F); |
| 502 ret = String.fromCharCode( |
| 503 Math.floor((codePoint - 0x10000) / 0x400) + 0xD800, |
| 504 (codePoint - 0x10000) % 0x400 + 0xDC00); |
| 505 } |
| 506 buffer.length = 0; |
| 507 return ret; |
| 508 } |
| 509 this.processJSString = function processJSString(string) { |
| 510 /* TODO: use TextEncoder when present, |
| 511 var encoder = new TextEncoder(); |
| 512 encoder['encoding'] = "utf-8"; |
| 513 var utf8Array = encoder['encode'](aMsg.data); |
| 514 */ |
| 515 string = unescape(encodeURIComponent(string)); |
| 516 var ret = []; |
| 517 for (var i = 0; i < string.length; i++) { |
| 518 ret.push(string.charCodeAt(i)); |
| 519 } |
| 520 return ret; |
| 521 } |
| 522 }, |
| 523 getCompilerSetting: function (name) { |
| 524 throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getComp
ilerSetting or emscripten_get_compiler_setting to work'; |
| 525 }, |
| 526 stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|
0;STACKTOP = (((STACKTOP)+7)&-8); return ret; }, |
| 527 staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + si
ze)|0;STATICTOP = (((STATICTOP)+7)&-8); return ret; }, |
| 528 dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP
+ size)|0;DYNAMICTOP = (((DYNAMICTOP)+7)&-8); if (DYNAMICTOP >= TOTAL_MEMORY) en
largeMemory();; return ret; }, |
| 529 alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quan
tum ? quantum : 8))*(quantum ? quantum : 8); return ret; }, |
| 530 makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)
))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+429496729
6)))); return ret; }, |
| 531 GLOBAL_BASE: 8, |
| 532 QUANTUM_SIZE: 4, |
| 533 __dummy__: 0 |
| 534 } |
| 535 |
| 536 |
| 537 Module['Runtime'] = Runtime; |
| 538 |
| 539 |
| 540 |
| 541 |
| 542 |
| 543 |
| 544 |
| 545 |
| 546 |
| 547 //======================================== |
| 548 // Runtime essentials |
| 549 //======================================== |
| 550 |
| 551 var __THREW__ = 0; // Used in checking for thrown exceptions. |
| 552 |
| 553 var ABORT = false; // whether we are quitting the application. no code should ru
n after this. set in exit() and abort() |
| 554 var EXITSTATUS = 0; |
| 555 |
| 556 var undef = 0; |
| 557 // tempInt is used for 32-bit signed values or smaller. tempBigInt is used |
| 558 // for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of temp
Int |
| 559 var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI
, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD, tempDouble, tempFloat; |
| 560 var tempI64, tempI64b; |
| 561 var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRe
t7, tempRet8, tempRet9; |
| 562 |
| 563 function assert(condition, text) { |
| 564 if (!condition) { |
| 565 abort('Assertion failed: ' + text); |
| 566 } |
| 567 } |
| 568 |
| 569 var globalScope = this; |
| 570 |
| 571 // C calling interface. A convenient way to call C functions (in C files, or |
| 572 // defined with extern "C"). |
| 573 // |
| 574 // Note: LLVM optimizations can inline and remove functions, after which you wil
l not be |
| 575 // able to call them. Closure can also do so. To avoid that, add your func
tion to |
| 576 // the exports using something like |
| 577 // |
| 578 // -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]' |
| 579 // |
| 580 // @param ident The name of the C function (note that C++ functions will be
name-mangled - use extern "C") |
| 581 // @param returnType The return type of the function, one of the JS types 'numbe
r', 'string' or 'array' (use 'number' for any C pointer, and |
| 582 // 'array' for JavaScript arrays and typed arrays; note that a
rrays are 8-bit). |
| 583 // @param argTypes An array of the types of arguments for the function (if the
re are no arguments, this can be ommitted). Types are as in returnType, |
| 584 // except that 'array' is not possible (there is no way for us
to know the length of the array) |
| 585 // @param args An array of the arguments to the function, as native JS val
ues (as in returnType) |
| 586 // Note that string arguments will be stored on the stack (the
JS string will become a C string on the stack). |
| 587 // @return The return value, as a native JS value (as in returnType) |
| 588 function ccall(ident, returnType, argTypes, args) { |
| 589 return ccallFunc(getCFunc(ident), returnType, argTypes, args); |
| 590 } |
| 591 Module["ccall"] = ccall; |
| 592 |
| 593 // Returns the C function with a specified identifier (for C++, you need to do m
anual name mangling) |
| 594 function getCFunc(ident) { |
| 595 try { |
| 596 var func = Module['_' + ident]; // closure exported function |
| 597 if (!func) func = eval('_' + ident); // explicit lookup |
| 598 } catch(e) { |
| 599 } |
| 600 assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimiz
ations or closure removed it?)'); |
| 601 return func; |
| 602 } |
| 603 |
| 604 // Internal function that does a C call using a function, not an identifier |
| 605 function ccallFunc(func, returnType, argTypes, args) { |
| 606 var stack = 0; |
| 607 function toC(value, type) { |
| 608 if (type == 'string') { |
| 609 if (value === null || value === undefined || value === 0) return 0; // nul
l string |
| 610 value = intArrayFromString(value); |
| 611 type = 'array'; |
| 612 } |
| 613 if (type == 'array') { |
| 614 if (!stack) stack = Runtime.stackSave(); |
| 615 var ret = Runtime.stackAlloc(value.length); |
| 616 writeArrayToMemory(value, ret); |
| 617 return ret; |
| 618 } |
| 619 return value; |
| 620 } |
| 621 function fromC(value, type) { |
| 622 if (type == 'string') { |
| 623 return Pointer_stringify(value); |
| 624 } |
| 625 assert(type != 'array'); |
| 626 return value; |
| 627 } |
| 628 var i = 0; |
| 629 var cArgs = args ? args.map(function(arg) { |
| 630 return toC(arg, argTypes[i++]); |
| 631 }) : []; |
| 632 var ret = fromC(func.apply(null, cArgs), returnType); |
| 633 if (stack) Runtime.stackRestore(stack); |
| 634 return ret; |
| 635 } |
| 636 |
| 637 // Returns a native JS wrapper for a C function. This is similar to ccall, but |
| 638 // returns a function you can call repeatedly in a normal way. For example: |
| 639 // |
| 640 // var my_function = cwrap('my_c_function', 'number', ['number', 'number']); |
| 641 // alert(my_function(5, 22)); |
| 642 // alert(my_function(99, 12)); |
| 643 // |
| 644 function cwrap(ident, returnType, argTypes) { |
| 645 var func = getCFunc(ident); |
| 646 return function() { |
| 647 return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(argu
ments)); |
| 648 } |
| 649 } |
| 650 Module["cwrap"] = cwrap; |
| 651 |
| 652 // Sets a value in memory in a dynamic way at run-time. Uses the |
| 653 // type data. This is the same as makeSetValue, except that |
| 654 // makeSetValue is done at compile-time and generates the needed |
| 655 // code then, whereas this function picks the right code at |
| 656 // run-time. |
| 657 // Note that setValue and getValue only do *aligned* writes and reads! |
| 658 // Note that ccall uses JS types as for defining types, while setValue and |
| 659 // getValue need LLVM types ('i8', 'i32') - this is a lower-level operation |
| 660 function setValue(ptr, value, type, noSafe) { |
| 661 type = type || 'i8'; |
| 662 if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit |
| 663 switch(type) { |
| 664 case 'i1': HEAP8[(ptr)]=value; break; |
| 665 case 'i8': HEAP8[(ptr)]=value; break; |
| 666 case 'i16': HEAP16[((ptr)>>1)]=value; break; |
| 667 case 'i32': HEAP32[((ptr)>>2)]=value; break; |
| 668 case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble
))) >= (+1) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+42949
67296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDo
uble)))>>>0))/(+4294967296))))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32
[(((ptr)+(4))>>2)]=tempI64[1]); break; |
| 669 case 'float': HEAPF32[((ptr)>>2)]=value; break; |
| 670 case 'double': HEAPF64[((ptr)>>3)]=value; break; |
| 671 default: abort('invalid type for setValue: ' + type); |
| 672 } |
| 673 } |
| 674 Module['setValue'] = setValue; |
| 675 |
| 676 // Parallel to setValue. |
| 677 function getValue(ptr, type, noSafe) { |
| 678 type = type || 'i8'; |
| 679 if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit |
| 680 switch(type) { |
| 681 case 'i1': return HEAP8[(ptr)]; |
| 682 case 'i8': return HEAP8[(ptr)]; |
| 683 case 'i16': return HEAP16[((ptr)>>1)]; |
| 684 case 'i32': return HEAP32[((ptr)>>2)]; |
| 685 case 'i64': return HEAP32[((ptr)>>2)]; |
| 686 case 'float': return HEAPF32[((ptr)>>2)]; |
| 687 case 'double': return HEAPF64[((ptr)>>3)]; |
| 688 default: abort('invalid type for setValue: ' + type); |
| 689 } |
| 690 return null; |
| 691 } |
| 692 Module['getValue'] = getValue; |
| 693 |
| 694 var ALLOC_NORMAL = 0; // Tries to use _malloc() |
| 695 var ALLOC_STACK = 1; // Lives for the duration of the current function call |
| 696 var ALLOC_STATIC = 2; // Cannot be freed |
| 697 var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk |
| 698 var ALLOC_NONE = 4; // Do not allocate |
| 699 Module['ALLOC_NORMAL'] = ALLOC_NORMAL; |
| 700 Module['ALLOC_STACK'] = ALLOC_STACK; |
| 701 Module['ALLOC_STATIC'] = ALLOC_STATIC; |
| 702 Module['ALLOC_DYNAMIC'] = ALLOC_DYNAMIC; |
| 703 Module['ALLOC_NONE'] = ALLOC_NONE; |
| 704 |
| 705 // allocate(): This is for internal use. You can use it yourself as well, but th
e interface |
| 706 // is a little tricky (see docs right below). The reason is that it
is optimized |
| 707 // for multiple syntaxes to save space in generated code. So you sho
uld |
| 708 // normally not use allocate(), and instead allocate memory using _m
alloc(), |
| 709 // initialize it with setValue(), and so forth. |
| 710 // @slab: An array of data, or a number. If a number, then the size of the block
to allocate, |
| 711 // in *bytes* (note that this is sometimes confusing: the next parameter
does not |
| 712 // affect this!) |
| 713 // @types: Either an array of types, one for each byte (or 0 if no type at that
position), |
| 714 // or a single type which is used for the entire block. This only matter
s if there |
| 715 // is initial data - if @slab is a number, then this does not matter at
all and is |
| 716 // ignored. |
| 717 // @allocator: How to allocate memory, see ALLOC_* |
| 718 function allocate(slab, types, allocator, ptr) { |
| 719 var zeroinit, size; |
| 720 if (typeof slab === 'number') { |
| 721 zeroinit = true; |
| 722 size = slab; |
| 723 } else { |
| 724 zeroinit = false; |
| 725 size = slab.length; |
| 726 } |
| 727 |
| 728 var singleType = typeof types === 'string' ? types : null; |
| 729 |
| 730 var ret; |
| 731 if (allocator == ALLOC_NONE) { |
| 732 ret = ptr; |
| 733 } else { |
| 734 ret = [_malloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAllo
c][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType
? 1 : types.length)); |
| 735 } |
| 736 |
| 737 if (zeroinit) { |
| 738 var ptr = ret, stop; |
| 739 assert((ret & 3) == 0); |
| 740 stop = ret + (size & ~3); |
| 741 for (; ptr < stop; ptr += 4) { |
| 742 HEAP32[((ptr)>>2)]=0; |
| 743 } |
| 744 stop = ret + size; |
| 745 while (ptr < stop) { |
| 746 HEAP8[((ptr++)|0)]=0; |
| 747 } |
| 748 return ret; |
| 749 } |
| 750 |
| 751 if (singleType === 'i8') { |
| 752 if (slab.subarray || slab.slice) { |
| 753 HEAPU8.set(slab, ret); |
| 754 } else { |
| 755 HEAPU8.set(new Uint8Array(slab), ret); |
| 756 } |
| 757 return ret; |
| 758 } |
| 759 |
| 760 var i = 0, type, typeSize, previousType; |
| 761 while (i < size) { |
| 762 var curr = slab[i]; |
| 763 |
| 764 if (typeof curr === 'function') { |
| 765 curr = Runtime.getFunctionIndex(curr); |
| 766 } |
| 767 |
| 768 type = singleType || types[i]; |
| 769 if (type === 0) { |
| 770 i++; |
| 771 continue; |
| 772 } |
| 773 |
| 774 if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and
one i32 later |
| 775 |
| 776 setValue(ret+i, curr, type); |
| 777 |
| 778 // no need to look up size unless type changes, so cache it |
| 779 if (previousType !== type) { |
| 780 typeSize = Runtime.getNativeTypeSize(type); |
| 781 previousType = type; |
| 782 } |
| 783 i += typeSize; |
| 784 } |
| 785 |
| 786 return ret; |
| 787 } |
| 788 Module['allocate'] = allocate; |
| 789 |
| 790 function Pointer_stringify(ptr, /* optional */ length) { |
| 791 // TODO: use TextDecoder |
| 792 // Find the length, and check for UTF while doing so |
| 793 var hasUtf = false; |
| 794 var t; |
| 795 var i = 0; |
| 796 while (1) { |
| 797 t = HEAPU8[(((ptr)+(i))|0)]; |
| 798 if (t >= 128) hasUtf = true; |
| 799 else if (t == 0 && !length) break; |
| 800 i++; |
| 801 if (length && i == length) break; |
| 802 } |
| 803 if (!length) length = i; |
| 804 |
| 805 var ret = ''; |
| 806 |
| 807 if (!hasUtf) { |
| 808 var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge stri
ng can overflow the stack |
| 809 var curr; |
| 810 while (length > 0) { |
| 811 curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.m
in(length, MAX_CHUNK))); |
| 812 ret = ret ? ret + curr : curr; |
| 813 ptr += MAX_CHUNK; |
| 814 length -= MAX_CHUNK; |
| 815 } |
| 816 return ret; |
| 817 } |
| 818 |
| 819 var utf8 = new Runtime.UTF8Processor(); |
| 820 for (i = 0; i < length; i++) { |
| 821 t = HEAPU8[(((ptr)+(i))|0)]; |
| 822 ret += utf8.processCChar(t); |
| 823 } |
| 824 return ret; |
| 825 } |
| 826 Module['Pointer_stringify'] = Pointer_stringify; |
| 827 |
| 828 // Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emsc
ripten HEAP, returns |
| 829 // a copy of that string as a Javascript String object. |
| 830 function UTF16ToString(ptr) { |
| 831 var i = 0; |
| 832 |
| 833 var str = ''; |
| 834 while (1) { |
| 835 var codeUnit = HEAP16[(((ptr)+(i*2))>>1)]; |
| 836 if (codeUnit == 0) |
| 837 return str; |
| 838 ++i; |
| 839 // fromCharCode constructs a character from a UTF-16 code unit, so we can pa
ss the UTF16 string right through. |
| 840 str += String.fromCharCode(codeUnit); |
| 841 } |
| 842 } |
| 843 Module['UTF16ToString'] = UTF16ToString; |
| 844 |
| 845 // Copies the given Javascript String object 'str' to the emscripten HEAP at add
ress 'outPtr', |
| 846 // null-terminated and encoded in UTF16LE form. The copy will require at most (s
tr.length*2+1)*2 bytes of space in the HEAP. |
| 847 function stringToUTF16(str, outPtr) { |
| 848 for(var i = 0; i < str.length; ++i) { |
| 849 // charCodeAt returns a UTF-16 encoded code unit, so it can be directly writ
ten to the HEAP. |
| 850 var codeUnit = str.charCodeAt(i); // possibly a lead surrogate |
| 851 HEAP16[(((outPtr)+(i*2))>>1)]=codeUnit; |
| 852 } |
| 853 // Null-terminate the pointer to the HEAP. |
| 854 HEAP16[(((outPtr)+(str.length*2))>>1)]=0; |
| 855 } |
| 856 Module['stringToUTF16'] = stringToUTF16; |
| 857 |
| 858 // Given a pointer 'ptr' to a null-terminated UTF32LE-encoded string in the emsc
ripten HEAP, returns |
| 859 // a copy of that string as a Javascript String object. |
| 860 function UTF32ToString(ptr) { |
| 861 var i = 0; |
| 862 |
| 863 var str = ''; |
| 864 while (1) { |
| 865 var utf32 = HEAP32[(((ptr)+(i*4))>>2)]; |
| 866 if (utf32 == 0) |
| 867 return str; |
| 868 ++i; |
| 869 // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (p
air), not from a Unicode code point! So encode the code point to UTF-16 for cons
tructing. |
| 870 if (utf32 >= 0x10000) { |
| 871 var ch = utf32 - 0x10000; |
| 872 str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); |
| 873 } else { |
| 874 str += String.fromCharCode(utf32); |
| 875 } |
| 876 } |
| 877 } |
| 878 Module['UTF32ToString'] = UTF32ToString; |
| 879 |
| 880 // Copies the given Javascript String object 'str' to the emscripten HEAP at add
ress 'outPtr', |
| 881 // null-terminated and encoded in UTF32LE form. The copy will require at most (s
tr.length+1)*4 bytes of space in the HEAP, |
| 882 // but can use less, since str.length does not return the number of characters i
n the string, but the number of UTF-16 code units in the string. |
| 883 function stringToUTF32(str, outPtr) { |
| 884 var iChar = 0; |
| 885 for(var iCodeUnit = 0; iCodeUnit < str.length; ++iCodeUnit) { |
| 886 // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code un
it, not a Unicode code point of the character! We must decode the string to UTF-
32 to the heap. |
| 887 var codeUnit = str.charCodeAt(iCodeUnit); // possibly a lead surrogate |
| 888 if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) { |
| 889 var trailSurrogate = str.charCodeAt(++iCodeUnit); |
| 890 codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF)
; |
| 891 } |
| 892 HEAP32[(((outPtr)+(iChar*4))>>2)]=codeUnit; |
| 893 ++iChar; |
| 894 } |
| 895 // Null-terminate the pointer to the HEAP. |
| 896 HEAP32[(((outPtr)+(iChar*4))>>2)]=0; |
| 897 } |
| 898 Module['stringToUTF32'] = stringToUTF32; |
| 899 |
| 900 function demangle(func) { |
| 901 var i = 3; |
| 902 // params, etc. |
| 903 var basicTypes = { |
| 904 'v': 'void', |
| 905 'b': 'bool', |
| 906 'c': 'char', |
| 907 's': 'short', |
| 908 'i': 'int', |
| 909 'l': 'long', |
| 910 'f': 'float', |
| 911 'd': 'double', |
| 912 'w': 'wchar_t', |
| 913 'a': 'signed char', |
| 914 'h': 'unsigned char', |
| 915 't': 'unsigned short', |
| 916 'j': 'unsigned int', |
| 917 'm': 'unsigned long', |
| 918 'x': 'long long', |
| 919 'y': 'unsigned long long', |
| 920 'z': '...' |
| 921 }; |
| 922 var subs = []; |
| 923 var first = true; |
| 924 function dump(x) { |
| 925 //return; |
| 926 if (x) Module.print(x); |
| 927 Module.print(func); |
| 928 var pre = ''; |
| 929 for (var a = 0; a < i; a++) pre += ' '; |
| 930 Module.print (pre + '^'); |
| 931 } |
| 932 function parseNested() { |
| 933 i++; |
| 934 if (func[i] === 'K') i++; // ignore const |
| 935 var parts = []; |
| 936 while (func[i] !== 'E') { |
| 937 if (func[i] === 'S') { // substitution |
| 938 i++; |
| 939 var next = func.indexOf('_', i); |
| 940 var num = func.substring(i, next) || 0; |
| 941 parts.push(subs[num] || '?'); |
| 942 i = next+1; |
| 943 continue; |
| 944 } |
| 945 if (func[i] === 'C') { // constructor |
| 946 parts.push(parts[parts.length-1]); |
| 947 i += 2; |
| 948 continue; |
| 949 } |
| 950 var size = parseInt(func.substr(i)); |
| 951 var pre = size.toString().length; |
| 952 if (!size || !pre) { i--; break; } // counter i++ below us |
| 953 var curr = func.substr(i + pre, size); |
| 954 parts.push(curr); |
| 955 subs.push(curr); |
| 956 i += pre + size; |
| 957 } |
| 958 i++; // skip E |
| 959 return parts; |
| 960 } |
| 961 function parse(rawList, limit, allowVoid) { // main parser |
| 962 limit = limit || Infinity; |
| 963 var ret = '', list = []; |
| 964 function flushList() { |
| 965 return '(' + list.join(', ') + ')'; |
| 966 } |
| 967 var name; |
| 968 if (func[i] === 'N') { |
| 969 // namespaced N-E |
| 970 name = parseNested().join('::'); |
| 971 limit--; |
| 972 if (limit === 0) return rawList ? [name] : name; |
| 973 } else { |
| 974 // not namespaced |
| 975 if (func[i] === 'K' || (first && func[i] === 'L')) i++; // ignore const an
d first 'L' |
| 976 var size = parseInt(func.substr(i)); |
| 977 if (size) { |
| 978 var pre = size.toString().length; |
| 979 name = func.substr(i + pre, size); |
| 980 i += pre + size; |
| 981 } |
| 982 } |
| 983 first = false; |
| 984 if (func[i] === 'I') { |
| 985 i++; |
| 986 var iList = parse(true); |
| 987 var iRet = parse(true, 1, true); |
| 988 ret += iRet[0] + ' ' + name + '<' + iList.join(', ') + '>'; |
| 989 } else { |
| 990 ret = name; |
| 991 } |
| 992 paramLoop: while (i < func.length && limit-- > 0) { |
| 993 //dump('paramLoop'); |
| 994 var c = func[i++]; |
| 995 if (c in basicTypes) { |
| 996 list.push(basicTypes[c]); |
| 997 } else { |
| 998 switch (c) { |
| 999 case 'P': list.push(parse(true, 1, true)[0] + '*'); break; // pointer |
| 1000 case 'R': list.push(parse(true, 1, true)[0] + '&'); break; // referenc
e |
| 1001 case 'L': { // literal |
| 1002 i++; // skip basic type |
| 1003 var end = func.indexOf('E', i); |
| 1004 var size = end - i; |
| 1005 list.push(func.substr(i, size)); |
| 1006 i += size + 2; // size + 'EE' |
| 1007 break; |
| 1008 } |
| 1009 case 'A': { // array |
| 1010 var size = parseInt(func.substr(i)); |
| 1011 i += size.toString().length; |
| 1012 if (func[i] !== '_') throw '?'; |
| 1013 i++; // skip _ |
| 1014 list.push(parse(true, 1, true)[0] + ' [' + size + ']'); |
| 1015 break; |
| 1016 } |
| 1017 case 'E': break paramLoop; |
| 1018 default: ret += '?' + c; break paramLoop; |
| 1019 } |
| 1020 } |
| 1021 } |
| 1022 if (!allowVoid && list.length === 1 && list[0] === 'void') list = []; // avo
id (void) |
| 1023 if (rawList) { |
| 1024 if (ret) { |
| 1025 list.push(ret + '?'); |
| 1026 } |
| 1027 return list; |
| 1028 } else { |
| 1029 return ret + flushList(); |
| 1030 } |
| 1031 } |
| 1032 try { |
| 1033 // Special-case the entry point, since its name differs from other name mang
ling. |
| 1034 if (func == 'Object._main' || func == '_main') { |
| 1035 return 'main()'; |
| 1036 } |
| 1037 if (typeof func === 'number') func = Pointer_stringify(func); |
| 1038 if (func[0] !== '_') return func; |
| 1039 if (func[1] !== '_') return func; // C function |
| 1040 if (func[2] !== 'Z') return func; |
| 1041 switch (func[3]) { |
| 1042 case 'n': return 'operator new()'; |
| 1043 case 'd': return 'operator delete()'; |
| 1044 } |
| 1045 return parse(); |
| 1046 } catch(e) { |
| 1047 return func; |
| 1048 } |
| 1049 } |
| 1050 |
| 1051 function demangleAll(text) { |
| 1052 return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return
x === y ? x : (x + ' [' + y + ']') }); |
| 1053 } |
| 1054 |
| 1055 function stackTrace() { |
| 1056 var stack = new Error().stack; |
| 1057 return stack ? demangleAll(stack) : '(no stack trace available)'; // Stack tra
ce is not available at least on IE10 and Safari 6. |
| 1058 } |
| 1059 |
| 1060 // Memory management |
| 1061 |
| 1062 var PAGE_SIZE = 4096; |
| 1063 function alignMemoryPage(x) { |
| 1064 return (x+4095)&-4096; |
| 1065 } |
| 1066 |
| 1067 var HEAP; |
| 1068 var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64; |
| 1069 |
| 1070 var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area |
| 1071 var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area |
| 1072 var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk |
| 1073 |
| 1074 function enlargeMemory() { |
| 1075 abort('Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X
with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with ALL
OW_MEMORY_GROWTH which adjusts the size at runtime but prevents some optimizatio
ns, or (3) set Module.TOTAL_MEMORY before the program runs.'); |
| 1076 } |
| 1077 |
| 1078 var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880; |
| 1079 var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 134217728; |
| 1080 var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152; |
| 1081 |
| 1082 var totalMemory = 4096; |
| 1083 while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) { |
| 1084 if (totalMemory < 16*1024*1024) { |
| 1085 totalMemory *= 2; |
| 1086 } else { |
| 1087 totalMemory += 16*1024*1024 |
| 1088 } |
| 1089 } |
| 1090 if (totalMemory !== TOTAL_MEMORY) { |
| 1091 Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be more rea
sonable'); |
| 1092 TOTAL_MEMORY = totalMemory; |
| 1093 } |
| 1094 |
| 1095 // Initialize the runtime's memory |
| 1096 // check for full engine support (use string 'subarray' to avoid closure compile
r confusion) |
| 1097 assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined'
&& !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']), |
| 1098 'JS engine does not provide full typed array support'); |
| 1099 |
| 1100 var buffer = new ArrayBuffer(TOTAL_MEMORY); |
| 1101 HEAP8 = new Int8Array(buffer); |
| 1102 HEAP16 = new Int16Array(buffer); |
| 1103 HEAP32 = new Int32Array(buffer); |
| 1104 HEAPU8 = new Uint8Array(buffer); |
| 1105 HEAPU16 = new Uint16Array(buffer); |
| 1106 HEAPU32 = new Uint32Array(buffer); |
| 1107 HEAPF32 = new Float32Array(buffer); |
| 1108 HEAPF64 = new Float64Array(buffer); |
| 1109 |
| 1110 // Endianness check (note: assumes compiler arch was little-endian) |
| 1111 HEAP32[0] = 255; |
| 1112 assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a li
ttle-endian system'); |
| 1113 |
| 1114 Module['HEAP'] = HEAP; |
| 1115 Module['HEAP8'] = HEAP8; |
| 1116 Module['HEAP16'] = HEAP16; |
| 1117 Module['HEAP32'] = HEAP32; |
| 1118 Module['HEAPU8'] = HEAPU8; |
| 1119 Module['HEAPU16'] = HEAPU16; |
| 1120 Module['HEAPU32'] = HEAPU32; |
| 1121 Module['HEAPF32'] = HEAPF32; |
| 1122 Module['HEAPF64'] = HEAPF64; |
| 1123 |
| 1124 function callRuntimeCallbacks(callbacks) { |
| 1125 while(callbacks.length > 0) { |
| 1126 var callback = callbacks.shift(); |
| 1127 if (typeof callback == 'function') { |
| 1128 callback(); |
| 1129 continue; |
| 1130 } |
| 1131 var func = callback.func; |
| 1132 if (typeof func === 'number') { |
| 1133 if (callback.arg === undefined) { |
| 1134 Runtime.dynCall('v', func); |
| 1135 } else { |
| 1136 Runtime.dynCall('vi', func, [callback.arg]); |
| 1137 } |
| 1138 } else { |
| 1139 func(callback.arg === undefined ? null : callback.arg); |
| 1140 } |
| 1141 } |
| 1142 } |
| 1143 |
| 1144 var __ATPRERUN__ = []; // functions called before the runtime is initialized |
| 1145 var __ATINIT__ = []; // functions called during startup |
| 1146 var __ATMAIN__ = []; // functions called when main() is to be run |
| 1147 var __ATEXIT__ = []; // functions called during shutdown |
| 1148 var __ATPOSTRUN__ = []; // functions called after the runtime has exited |
| 1149 |
| 1150 var runtimeInitialized = false; |
| 1151 |
| 1152 function preRun() { |
| 1153 // compatibility - merge in anything from Module['preRun'] at this time |
| 1154 if (Module['preRun']) { |
| 1155 if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRu
n']]; |
| 1156 while (Module['preRun'].length) { |
| 1157 addOnPreRun(Module['preRun'].shift()); |
| 1158 } |
| 1159 } |
| 1160 callRuntimeCallbacks(__ATPRERUN__); |
| 1161 } |
| 1162 |
| 1163 function ensureInitRuntime() { |
| 1164 if (runtimeInitialized) return; |
| 1165 runtimeInitialized = true; |
| 1166 callRuntimeCallbacks(__ATINIT__); |
| 1167 } |
| 1168 |
| 1169 function preMain() { |
| 1170 callRuntimeCallbacks(__ATMAIN__); |
| 1171 } |
| 1172 |
| 1173 function exitRuntime() { |
| 1174 callRuntimeCallbacks(__ATEXIT__); |
| 1175 } |
| 1176 |
| 1177 function postRun() { |
| 1178 // compatibility - merge in anything from Module['postRun'] at this time |
| 1179 if (Module['postRun']) { |
| 1180 if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['pos
tRun']]; |
| 1181 while (Module['postRun'].length) { |
| 1182 addOnPostRun(Module['postRun'].shift()); |
| 1183 } |
| 1184 } |
| 1185 callRuntimeCallbacks(__ATPOSTRUN__); |
| 1186 } |
| 1187 |
| 1188 function addOnPreRun(cb) { |
| 1189 __ATPRERUN__.unshift(cb); |
| 1190 } |
| 1191 Module['addOnPreRun'] = Module.addOnPreRun = addOnPreRun; |
| 1192 |
| 1193 function addOnInit(cb) { |
| 1194 __ATINIT__.unshift(cb); |
| 1195 } |
| 1196 Module['addOnInit'] = Module.addOnInit = addOnInit; |
| 1197 |
| 1198 function addOnPreMain(cb) { |
| 1199 __ATMAIN__.unshift(cb); |
| 1200 } |
| 1201 Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain; |
| 1202 |
| 1203 function addOnExit(cb) { |
| 1204 __ATEXIT__.unshift(cb); |
| 1205 } |
| 1206 Module['addOnExit'] = Module.addOnExit = addOnExit; |
| 1207 |
| 1208 function addOnPostRun(cb) { |
| 1209 __ATPOSTRUN__.unshift(cb); |
| 1210 } |
| 1211 Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun; |
| 1212 |
| 1213 // Tools |
| 1214 |
| 1215 // This processes a JS string into a C-line array of numbers, 0-terminated. |
| 1216 // For LLVM-originating strings, see parser.js:parseLLVMString function |
| 1217 function intArrayFromString(stringy, dontAddNull, length /* optional */) { |
| 1218 var ret = (new Runtime.UTF8Processor()).processJSString(stringy); |
| 1219 if (length) { |
| 1220 ret.length = length; |
| 1221 } |
| 1222 if (!dontAddNull) { |
| 1223 ret.push(0); |
| 1224 } |
| 1225 return ret; |
| 1226 } |
| 1227 Module['intArrayFromString'] = intArrayFromString; |
| 1228 |
| 1229 function intArrayToString(array) { |
| 1230 var ret = []; |
| 1231 for (var i = 0; i < array.length; i++) { |
| 1232 var chr = array[i]; |
| 1233 if (chr > 0xFF) { |
| 1234 chr &= 0xFF; |
| 1235 } |
| 1236 ret.push(String.fromCharCode(chr)); |
| 1237 } |
| 1238 return ret.join(''); |
| 1239 } |
| 1240 Module['intArrayToString'] = intArrayToString; |
| 1241 |
| 1242 // Write a Javascript array to somewhere in the heap |
| 1243 function writeStringToMemory(string, buffer, dontAddNull) { |
| 1244 var array = intArrayFromString(string, dontAddNull); |
| 1245 var i = 0; |
| 1246 while (i < array.length) { |
| 1247 var chr = array[i]; |
| 1248 HEAP8[(((buffer)+(i))|0)]=chr; |
| 1249 i = i + 1; |
| 1250 } |
| 1251 } |
| 1252 Module['writeStringToMemory'] = writeStringToMemory; |
| 1253 |
| 1254 function writeArrayToMemory(array, buffer) { |
| 1255 for (var i = 0; i < array.length; i++) { |
| 1256 HEAP8[(((buffer)+(i))|0)]=array[i]; |
| 1257 } |
| 1258 } |
| 1259 Module['writeArrayToMemory'] = writeArrayToMemory; |
| 1260 |
| 1261 function writeAsciiToMemory(str, buffer, dontAddNull) { |
| 1262 for (var i = 0; i < str.length; i++) { |
| 1263 HEAP8[(((buffer)+(i))|0)]=str.charCodeAt(i); |
| 1264 } |
| 1265 if (!dontAddNull) HEAP8[(((buffer)+(str.length))|0)]=0; |
| 1266 } |
| 1267 Module['writeAsciiToMemory'] = writeAsciiToMemory; |
| 1268 |
| 1269 function unSign(value, bits, ignore) { |
| 1270 if (value >= 0) { |
| 1271 return value; |
| 1272 } |
| 1273 return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, s
ince if bits == 32, we are right at the limit of the bits JS uses in bitshifts |
| 1274 : Math.pow(2, bits) + value; |
| 1275 } |
| 1276 function reSign(value, bits, ignore) { |
| 1277 if (value <= 0) { |
| 1278 return value; |
| 1279 } |
| 1280 var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32 |
| 1281 : Math.pow(2, bits-1); |
| 1282 if (value >= half && (bits <= 32 || value > half)) { // for huge values, we ca
n hit the precision limit and always get true here. so don't do that |
| 1283 // but, in general there
is no perfect solution here. With 64-bit ints, we get rounding and errors |
| 1284 // TODO: In i64 mode 1, r
esign the two parts separately and safely |
| 1285 value = -2*half + value; // Cannot bitshift half, as it may be at the limit
of the bits JS uses in bitshifts |
| 1286 } |
| 1287 return value; |
| 1288 } |
| 1289 |
| 1290 // check for imul support, and also for correctness ( https://bugs.webkit.org/sh
ow_bug.cgi?id=126345 ) |
| 1291 if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function
imul(a, b) { |
| 1292 var ah = a >>> 16; |
| 1293 var al = a & 0xffff; |
| 1294 var bh = b >>> 16; |
| 1295 var bl = b & 0xffff; |
| 1296 return (al*bl + ((ah*bl + al*bh) << 16))|0; |
| 1297 }; |
| 1298 Math.imul = Math['imul']; |
| 1299 |
| 1300 |
| 1301 var Math_abs = Math.abs; |
| 1302 var Math_cos = Math.cos; |
| 1303 var Math_sin = Math.sin; |
| 1304 var Math_tan = Math.tan; |
| 1305 var Math_acos = Math.acos; |
| 1306 var Math_asin = Math.asin; |
| 1307 var Math_atan = Math.atan; |
| 1308 var Math_atan2 = Math.atan2; |
| 1309 var Math_exp = Math.exp; |
| 1310 var Math_log = Math.log; |
| 1311 var Math_sqrt = Math.sqrt; |
| 1312 var Math_ceil = Math.ceil; |
| 1313 var Math_floor = Math.floor; |
| 1314 var Math_pow = Math.pow; |
| 1315 var Math_imul = Math.imul; |
| 1316 var Math_fround = Math.fround; |
| 1317 var Math_min = Math.min; |
| 1318 |
| 1319 // A counter of dependencies for calling run(). If we need to |
| 1320 // do asynchronous work before running, increment this and |
| 1321 // decrement it. Incrementing must happen in a place like |
| 1322 // PRE_RUN_ADDITIONS (used by emcc to add file preloading). |
| 1323 // Note that you can add dependencies in preRun, even though |
| 1324 // it happens right before run - run will be postponed until |
| 1325 // the dependencies are met. |
| 1326 var runDependencies = 0; |
| 1327 var runDependencyWatcher = null; |
| 1328 var dependenciesFulfilled = null; // overridden to take different actions when a
ll run dependencies are fulfilled |
| 1329 |
| 1330 function addRunDependency(id) { |
| 1331 runDependencies++; |
| 1332 if (Module['monitorRunDependencies']) { |
| 1333 Module['monitorRunDependencies'](runDependencies); |
| 1334 } |
| 1335 } |
| 1336 Module['addRunDependency'] = addRunDependency; |
| 1337 function removeRunDependency(id) { |
| 1338 runDependencies--; |
| 1339 if (Module['monitorRunDependencies']) { |
| 1340 Module['monitorRunDependencies'](runDependencies); |
| 1341 } |
| 1342 if (runDependencies == 0) { |
| 1343 if (runDependencyWatcher !== null) { |
| 1344 clearInterval(runDependencyWatcher); |
| 1345 runDependencyWatcher = null; |
| 1346 } |
| 1347 if (dependenciesFulfilled) { |
| 1348 var callback = dependenciesFulfilled; |
| 1349 dependenciesFulfilled = null; |
| 1350 callback(); // can add another dependenciesFulfilled |
| 1351 } |
| 1352 } |
| 1353 } |
| 1354 Module['removeRunDependency'] = removeRunDependency; |
| 1355 |
| 1356 Module["preloadedImages"] = {}; // maps url to image data |
| 1357 Module["preloadedAudios"] = {}; // maps url to audio data |
| 1358 |
| 1359 |
| 1360 var memoryInitializer = null; |
| 1361 |
| 1362 // === Body === |
| 1363 |
| 1364 |
| 1365 |
| 1366 |
| 1367 |
| 1368 STATIC_BASE = 8; |
| 1369 |
| 1370 STATICTOP = STATIC_BASE + Runtime.alignMemory(27); |
| 1371 /* global initializers */ __ATINIT__.push(); |
| 1372 |
| 1373 |
| 1374 /* memory initializer */ allocate([101,114,114,111,114,58,32,37,100,92,110,0,0,0
,0,0,115,117,109,58,37,100,10,0], "i8", ALLOC_NONE, Runtime.GLOBAL_BASE); |
| 1375 |
| 1376 |
| 1377 |
| 1378 |
| 1379 var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8); |
| 1380 |
| 1381 assert(tempDoublePtr % 8 == 0); |
| 1382 |
| 1383 function copyTempFloat(ptr) { // functions, because inlining this code increases
code size too much |
| 1384 |
| 1385 HEAP8[tempDoublePtr] = HEAP8[ptr]; |
| 1386 |
| 1387 HEAP8[tempDoublePtr+1] = HEAP8[ptr+1]; |
| 1388 |
| 1389 HEAP8[tempDoublePtr+2] = HEAP8[ptr+2]; |
| 1390 |
| 1391 HEAP8[tempDoublePtr+3] = HEAP8[ptr+3]; |
| 1392 |
| 1393 } |
| 1394 |
| 1395 function copyTempDouble(ptr) { |
| 1396 |
| 1397 HEAP8[tempDoublePtr] = HEAP8[ptr]; |
| 1398 |
| 1399 HEAP8[tempDoublePtr+1] = HEAP8[ptr+1]; |
| 1400 |
| 1401 HEAP8[tempDoublePtr+2] = HEAP8[ptr+2]; |
| 1402 |
| 1403 HEAP8[tempDoublePtr+3] = HEAP8[ptr+3]; |
| 1404 |
| 1405 HEAP8[tempDoublePtr+4] = HEAP8[ptr+4]; |
| 1406 |
| 1407 HEAP8[tempDoublePtr+5] = HEAP8[ptr+5]; |
| 1408 |
| 1409 HEAP8[tempDoublePtr+6] = HEAP8[ptr+6]; |
| 1410 |
| 1411 HEAP8[tempDoublePtr+7] = HEAP8[ptr+7]; |
| 1412 |
| 1413 } |
| 1414 |
| 1415 |
| 1416 function _malloc(bytes) { |
| 1417 /* Over-allocate to make sure it is byte-aligned by 8. |
| 1418 * This will leak memory, but this is only the dummy |
| 1419 * implementation (replaced by dlmalloc normally) so |
| 1420 * not an issue. |
| 1421 */ |
| 1422 var ptr = Runtime.dynamicAlloc(bytes + 8); |
| 1423 return (ptr+8) & 0xFFFFFFF8; |
| 1424 } |
| 1425 Module["_malloc"] = _malloc; |
| 1426 |
| 1427 |
| 1428 |
| 1429 |
| 1430 var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXE
C:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENO
TBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENF
ILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLI
NK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT
:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBAD
E:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,E
NOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,
EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ
:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83
,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,E
CONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:
92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101
,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALRE
ADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRN
OTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQ
UOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125
,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86}; |
| 1431 |
| 1432 var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or director
y",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such devi
ce or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",1
0:"No children",11:"No more processes",12:"Not enough core",13:"Permission denie
d",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File e
xists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a
directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many
open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"N
o space left on device",29:"Illegal seek",30:"Read only file system",31:"Too man
y links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result no
t representable",35:"File locking deadlock error",36:"File or path name too long
",37:"No record locks available",38:"Function not implemented",39:"Directory not
empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identif
ier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"
Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol dr
iver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Inval
id exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56
:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not
a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams r
esources",64:"Machine is not on the network",65:"Package not installed",66:"The
object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmoun
t error",70:"Communication error on send",71:"Protocol error",72:"Multihop attem
pted",73:"Cross mount point (not really error)",74:"Trying to read unreadable me
ssage",75:"Value too large for defined data type",76:"Given log. name not unique
",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can acc
ess a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section
in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to e
xec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too
many users",88:"Socket operation on non-socket",89:"Destination address require
d",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not av
ailable",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported"
,96:"Protocol family not supported",97:"Address family not supported by protocol
family",98:"Address already in use",99:"Address not available",100:"Network int
erface is not configured",101:"Network is unreachable",102:"Connection reset by
network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer
space available",106:"Socket is already connected",107:"Socket is not connected"
,108:"Can't send after socket shutdown",109:"Too many references",110:"Connectio
n timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachabl
e",114:"Socket already connected",115:"Connection already in progress",116:"Stal
e file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operati
on canceled",130:"Previous owner died",131:"State not recoverable"}; |
| 1433 |
| 1434 |
| 1435 var ___errno_state=0;function ___setErrNo(value) { |
| 1436 // For convenient setting and returning of errno. |
| 1437 HEAP32[((___errno_state)>>2)]=value; |
| 1438 return value; |
| 1439 } |
| 1440 |
| 1441 var TTY={ttys:[],init:function () { |
| 1442 // https://github.com/kripken/emscripten/pull/1555 |
| 1443 // if (ENVIRONMENT_IS_NODE) { |
| 1444 // // currently, FS.init does not distinguish if process.stdin is a fi
le or TTY |
| 1445 // // device, it always assumes it's a TTY device. because of this, we
're forcing |
| 1446 // // process.stdin to UTF8 encoding to at least make stdin reading co
mpatible |
| 1447 // // with text files until FS.init can be refactored. |
| 1448 // process['stdin']['setEncoding']('utf8'); |
| 1449 // } |
| 1450 },shutdown:function () { |
| 1451 // https://github.com/kripken/emscripten/pull/1555 |
| 1452 // if (ENVIRONMENT_IS_NODE) { |
| 1453 // // inolen: any idea as to why node -e 'process.stdin.read()' wouldn
't exit immediately (with process.stdin being a tty)? |
| 1454 // // isaacs: because now it's reading from the stream, you've express
ed interest in it, so that read() kicks off a _read() which creates a ReadReq op
eration |
| 1455 // // inolen: I thought read() in that case was a synchronous operatio
n that just grabbed some amount of buffered data if it exists? |
| 1456 // // isaacs: it is. but it also triggers a _read() call, which calls
readStart() on the handle |
| 1457 // // isaacs: do process.stdin.pause() and i'd think it'd probably clo
se the pending call |
| 1458 // process['stdin']['pause'](); |
| 1459 // } |
| 1460 },register:function (dev, ops) { |
| 1461 TTY.ttys[dev] = { input: [], output: [], ops: ops }; |
| 1462 FS.registerDevice(dev, TTY.stream_ops); |
| 1463 },stream_ops:{open:function (stream) { |
| 1464 var tty = TTY.ttys[stream.node.rdev]; |
| 1465 if (!tty) { |
| 1466 throw new FS.ErrnoError(ERRNO_CODES.ENODEV); |
| 1467 } |
| 1468 stream.tty = tty; |
| 1469 stream.seekable = false; |
| 1470 },close:function (stream) { |
| 1471 // flush any pending line data |
| 1472 if (stream.tty.output.length) { |
| 1473 stream.tty.ops.put_char(stream.tty, 10); |
| 1474 } |
| 1475 },read:function (stream, buffer, offset, length, pos /* ignored */) { |
| 1476 if (!stream.tty || !stream.tty.ops.get_char) { |
| 1477 throw new FS.ErrnoError(ERRNO_CODES.ENXIO); |
| 1478 } |
| 1479 var bytesRead = 0; |
| 1480 for (var i = 0; i < length; i++) { |
| 1481 var result; |
| 1482 try { |
| 1483 result = stream.tty.ops.get_char(stream.tty); |
| 1484 } catch (e) { |
| 1485 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 1486 } |
| 1487 if (result === undefined && bytesRead === 0) { |
| 1488 throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); |
| 1489 } |
| 1490 if (result === null || result === undefined) break; |
| 1491 bytesRead++; |
| 1492 buffer[offset+i] = result; |
| 1493 } |
| 1494 if (bytesRead) { |
| 1495 stream.node.timestamp = Date.now(); |
| 1496 } |
| 1497 return bytesRead; |
| 1498 },write:function (stream, buffer, offset, length, pos) { |
| 1499 if (!stream.tty || !stream.tty.ops.put_char) { |
| 1500 throw new FS.ErrnoError(ERRNO_CODES.ENXIO); |
| 1501 } |
| 1502 for (var i = 0; i < length; i++) { |
| 1503 try { |
| 1504 stream.tty.ops.put_char(stream.tty, buffer[offset+i]); |
| 1505 } catch (e) { |
| 1506 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 1507 } |
| 1508 } |
| 1509 if (length) { |
| 1510 stream.node.timestamp = Date.now(); |
| 1511 } |
| 1512 return i; |
| 1513 }},default_tty_ops:{get_char:function (tty) { |
| 1514 if (!tty.input.length) { |
| 1515 var result = null; |
| 1516 if (ENVIRONMENT_IS_NODE) { |
| 1517 result = process['stdin']['read'](); |
| 1518 if (!result) { |
| 1519 if (process['stdin']['_readableState'] && process['stdin']['_rea
dableState']['ended']) { |
| 1520 return null; // EOF |
| 1521 } |
| 1522 return undefined; // no data available |
| 1523 } |
| 1524 } else if (typeof window != 'undefined' && |
| 1525 typeof window.prompt == 'function') { |
| 1526 // Browser. |
| 1527 result = window.prompt('Input: '); // returns null on cancel |
| 1528 if (result !== null) { |
| 1529 result += '\n'; |
| 1530 } |
| 1531 } else if (typeof readline == 'function') { |
| 1532 // Command line. |
| 1533 result = readline(); |
| 1534 if (result !== null) { |
| 1535 result += '\n'; |
| 1536 } |
| 1537 } |
| 1538 if (!result) { |
| 1539 return null; |
| 1540 } |
| 1541 tty.input = intArrayFromString(result, true); |
| 1542 } |
| 1543 return tty.input.shift(); |
| 1544 },put_char:function (tty, val) { |
| 1545 if (val === null || val === 10) { |
| 1546 Module['print'](tty.output.join('')); |
| 1547 tty.output = []; |
| 1548 } else { |
| 1549 tty.output.push(TTY.utf8.processCChar(val)); |
| 1550 } |
| 1551 }},default_tty1_ops:{put_char:function (tty, val) { |
| 1552 if (val === null || val === 10) { |
| 1553 Module['printErr'](tty.output.join('')); |
| 1554 tty.output = []; |
| 1555 } else { |
| 1556 tty.output.push(TTY.utf8.processCChar(val)); |
| 1557 } |
| 1558 }}}; |
| 1559 |
| 1560 var MEMFS={ops_table:null,CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,
mount:function (mount) { |
| 1561 return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); |
| 1562 },createNode:function (parent, name, mode, dev) { |
| 1563 if (FS.isBlkdev(mode) || FS.isFIFO(mode)) { |
| 1564 // no supported |
| 1565 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 1566 } |
| 1567 if (!MEMFS.ops_table) { |
| 1568 MEMFS.ops_table = { |
| 1569 dir: { |
| 1570 node: { |
| 1571 getattr: MEMFS.node_ops.getattr, |
| 1572 setattr: MEMFS.node_ops.setattr, |
| 1573 lookup: MEMFS.node_ops.lookup, |
| 1574 mknod: MEMFS.node_ops.mknod, |
| 1575 rename: MEMFS.node_ops.rename, |
| 1576 unlink: MEMFS.node_ops.unlink, |
| 1577 rmdir: MEMFS.node_ops.rmdir, |
| 1578 readdir: MEMFS.node_ops.readdir, |
| 1579 symlink: MEMFS.node_ops.symlink |
| 1580 }, |
| 1581 stream: { |
| 1582 llseek: MEMFS.stream_ops.llseek |
| 1583 } |
| 1584 }, |
| 1585 file: { |
| 1586 node: { |
| 1587 getattr: MEMFS.node_ops.getattr, |
| 1588 setattr: MEMFS.node_ops.setattr |
| 1589 }, |
| 1590 stream: { |
| 1591 llseek: MEMFS.stream_ops.llseek, |
| 1592 read: MEMFS.stream_ops.read, |
| 1593 write: MEMFS.stream_ops.write, |
| 1594 allocate: MEMFS.stream_ops.allocate, |
| 1595 mmap: MEMFS.stream_ops.mmap |
| 1596 } |
| 1597 }, |
| 1598 link: { |
| 1599 node: { |
| 1600 getattr: MEMFS.node_ops.getattr, |
| 1601 setattr: MEMFS.node_ops.setattr, |
| 1602 readlink: MEMFS.node_ops.readlink |
| 1603 }, |
| 1604 stream: {} |
| 1605 }, |
| 1606 chrdev: { |
| 1607 node: { |
| 1608 getattr: MEMFS.node_ops.getattr, |
| 1609 setattr: MEMFS.node_ops.setattr |
| 1610 }, |
| 1611 stream: FS.chrdev_stream_ops |
| 1612 }, |
| 1613 }; |
| 1614 } |
| 1615 var node = FS.createNode(parent, name, mode, dev); |
| 1616 if (FS.isDir(node.mode)) { |
| 1617 node.node_ops = MEMFS.ops_table.dir.node; |
| 1618 node.stream_ops = MEMFS.ops_table.dir.stream; |
| 1619 node.contents = {}; |
| 1620 } else if (FS.isFile(node.mode)) { |
| 1621 node.node_ops = MEMFS.ops_table.file.node; |
| 1622 node.stream_ops = MEMFS.ops_table.file.stream; |
| 1623 node.contents = []; |
| 1624 node.contentMode = MEMFS.CONTENT_FLEXIBLE; |
| 1625 } else if (FS.isLink(node.mode)) { |
| 1626 node.node_ops = MEMFS.ops_table.link.node; |
| 1627 node.stream_ops = MEMFS.ops_table.link.stream; |
| 1628 } else if (FS.isChrdev(node.mode)) { |
| 1629 node.node_ops = MEMFS.ops_table.chrdev.node; |
| 1630 node.stream_ops = MEMFS.ops_table.chrdev.stream; |
| 1631 } |
| 1632 node.timestamp = Date.now(); |
| 1633 // add the new node to the parent |
| 1634 if (parent) { |
| 1635 parent.contents[name] = node; |
| 1636 } |
| 1637 return node; |
| 1638 },ensureFlexible:function (node) { |
| 1639 if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) { |
| 1640 var contents = node.contents; |
| 1641 node.contents = Array.prototype.slice.call(contents); |
| 1642 node.contentMode = MEMFS.CONTENT_FLEXIBLE; |
| 1643 } |
| 1644 },node_ops:{getattr:function (node) { |
| 1645 var attr = {}; |
| 1646 // device numbers reuse inode numbers. |
| 1647 attr.dev = FS.isChrdev(node.mode) ? node.id : 1; |
| 1648 attr.ino = node.id; |
| 1649 attr.mode = node.mode; |
| 1650 attr.nlink = 1; |
| 1651 attr.uid = 0; |
| 1652 attr.gid = 0; |
| 1653 attr.rdev = node.rdev; |
| 1654 if (FS.isDir(node.mode)) { |
| 1655 attr.size = 4096; |
| 1656 } else if (FS.isFile(node.mode)) { |
| 1657 attr.size = node.contents.length; |
| 1658 } else if (FS.isLink(node.mode)) { |
| 1659 attr.size = node.link.length; |
| 1660 } else { |
| 1661 attr.size = 0; |
| 1662 } |
| 1663 attr.atime = new Date(node.timestamp); |
| 1664 attr.mtime = new Date(node.timestamp); |
| 1665 attr.ctime = new Date(node.timestamp); |
| 1666 // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksi
ze), |
| 1667 // but this is not required by the standard. |
| 1668 attr.blksize = 4096; |
| 1669 attr.blocks = Math.ceil(attr.size / attr.blksize); |
| 1670 return attr; |
| 1671 },setattr:function (node, attr) { |
| 1672 if (attr.mode !== undefined) { |
| 1673 node.mode = attr.mode; |
| 1674 } |
| 1675 if (attr.timestamp !== undefined) { |
| 1676 node.timestamp = attr.timestamp; |
| 1677 } |
| 1678 if (attr.size !== undefined) { |
| 1679 MEMFS.ensureFlexible(node); |
| 1680 var contents = node.contents; |
| 1681 if (attr.size < contents.length) contents.length = attr.size; |
| 1682 else while (attr.size > contents.length) contents.push(0); |
| 1683 } |
| 1684 },lookup:function (parent, name) { |
| 1685 throw FS.genericErrors[ERRNO_CODES.ENOENT]; |
| 1686 },mknod:function (parent, name, mode, dev) { |
| 1687 return MEMFS.createNode(parent, name, mode, dev); |
| 1688 },rename:function (old_node, new_dir, new_name) { |
| 1689 // if we're overwriting a directory at new_name, make sure it's empty. |
| 1690 if (FS.isDir(old_node.mode)) { |
| 1691 var new_node; |
| 1692 try { |
| 1693 new_node = FS.lookupNode(new_dir, new_name); |
| 1694 } catch (e) { |
| 1695 } |
| 1696 if (new_node) { |
| 1697 for (var i in new_node.contents) { |
| 1698 throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); |
| 1699 } |
| 1700 } |
| 1701 } |
| 1702 // do the internal rewiring |
| 1703 delete old_node.parent.contents[old_node.name]; |
| 1704 old_node.name = new_name; |
| 1705 new_dir.contents[new_name] = old_node; |
| 1706 old_node.parent = new_dir; |
| 1707 },unlink:function (parent, name) { |
| 1708 delete parent.contents[name]; |
| 1709 },rmdir:function (parent, name) { |
| 1710 var node = FS.lookupNode(parent, name); |
| 1711 for (var i in node.contents) { |
| 1712 throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); |
| 1713 } |
| 1714 delete parent.contents[name]; |
| 1715 },readdir:function (node) { |
| 1716 var entries = ['.', '..'] |
| 1717 for (var key in node.contents) { |
| 1718 if (!node.contents.hasOwnProperty(key)) { |
| 1719 continue; |
| 1720 } |
| 1721 entries.push(key); |
| 1722 } |
| 1723 return entries; |
| 1724 },symlink:function (parent, newname, oldpath) { |
| 1725 var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0
); |
| 1726 node.link = oldpath; |
| 1727 return node; |
| 1728 },readlink:function (node) { |
| 1729 if (!FS.isLink(node.mode)) { |
| 1730 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 1731 } |
| 1732 return node.link; |
| 1733 }},stream_ops:{read:function (stream, buffer, offset, length, position)
{ |
| 1734 var contents = stream.node.contents; |
| 1735 if (position >= contents.length) |
| 1736 return 0; |
| 1737 var size = Math.min(contents.length - position, length); |
| 1738 assert(size >= 0); |
| 1739 if (size > 8 && contents.subarray) { // non-trivial, and typed array |
| 1740 buffer.set(contents.subarray(position, position + size), offset); |
| 1741 } else |
| 1742 { |
| 1743 for (var i = 0; i < size; i++) { |
| 1744 buffer[offset + i] = contents[position + i]; |
| 1745 } |
| 1746 } |
| 1747 return size; |
| 1748 },write:function (stream, buffer, offset, length, position, canOwn) { |
| 1749 var node = stream.node; |
| 1750 node.timestamp = Date.now(); |
| 1751 var contents = node.contents; |
| 1752 if (length && contents.length === 0 && position === 0 && buffer.subarr
ay) { |
| 1753 // just replace it with the new data |
| 1754 if (canOwn && offset === 0) { |
| 1755 node.contents = buffer; // this could be a subarray of Emscripten
HEAP, or allocated from some other source. |
| 1756 node.contentMode = (buffer.buffer === HEAP8.buffer) ? MEMFS.CONTEN
T_OWNING : MEMFS.CONTENT_FIXED; |
| 1757 } else { |
| 1758 node.contents = new Uint8Array(buffer.subarray(offset, offset+leng
th)); |
| 1759 node.contentMode = MEMFS.CONTENT_FIXED; |
| 1760 } |
| 1761 return length; |
| 1762 } |
| 1763 MEMFS.ensureFlexible(node); |
| 1764 var contents = node.contents; |
| 1765 while (contents.length < position) contents.push(0); |
| 1766 for (var i = 0; i < length; i++) { |
| 1767 contents[position + i] = buffer[offset + i]; |
| 1768 } |
| 1769 return length; |
| 1770 },llseek:function (stream, offset, whence) { |
| 1771 var position = offset; |
| 1772 if (whence === 1) { // SEEK_CUR. |
| 1773 position += stream.position; |
| 1774 } else if (whence === 2) { // SEEK_END. |
| 1775 if (FS.isFile(stream.node.mode)) { |
| 1776 position += stream.node.contents.length; |
| 1777 } |
| 1778 } |
| 1779 if (position < 0) { |
| 1780 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 1781 } |
| 1782 stream.ungotten = []; |
| 1783 stream.position = position; |
| 1784 return position; |
| 1785 },allocate:function (stream, offset, length) { |
| 1786 MEMFS.ensureFlexible(stream.node); |
| 1787 var contents = stream.node.contents; |
| 1788 var limit = offset + length; |
| 1789 while (limit > contents.length) contents.push(0); |
| 1790 },mmap:function (stream, buffer, offset, length, position, prot, flags)
{ |
| 1791 if (!FS.isFile(stream.node.mode)) { |
| 1792 throw new FS.ErrnoError(ERRNO_CODES.ENODEV); |
| 1793 } |
| 1794 var ptr; |
| 1795 var allocated; |
| 1796 var contents = stream.node.contents; |
| 1797 // Only make a new copy when MAP_PRIVATE is specified. |
| 1798 if ( !(flags & 2) && |
| 1799 (contents.buffer === buffer || contents.buffer === buffer.buffer
) ) { |
| 1800 // We can't emulate MAP_SHARED when the file is not backed by the bu
ffer |
| 1801 // we're mapping to (e.g. the HEAP buffer). |
| 1802 allocated = false; |
| 1803 ptr = contents.byteOffset; |
| 1804 } else { |
| 1805 // Try to avoid unnecessary slices. |
| 1806 if (position > 0 || position + length < contents.length) { |
| 1807 if (contents.subarray) { |
| 1808 contents = contents.subarray(position, position + length); |
| 1809 } else { |
| 1810 contents = Array.prototype.slice.call(contents, position, positi
on + length); |
| 1811 } |
| 1812 } |
| 1813 allocated = true; |
| 1814 ptr = _malloc(length); |
| 1815 if (!ptr) { |
| 1816 throw new FS.ErrnoError(ERRNO_CODES.ENOMEM); |
| 1817 } |
| 1818 buffer.set(contents, ptr); |
| 1819 } |
| 1820 return { ptr: ptr, allocated: allocated }; |
| 1821 }}}; |
| 1822 |
| 1823 var IDBFS={dbs:{},indexedDB:function () { |
| 1824 return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB
|| window.msIndexedDB; |
| 1825 },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) { |
| 1826 // reuse all of the core MEMFS functionality |
| 1827 return MEMFS.mount.apply(null, arguments); |
| 1828 },syncfs:function (mount, populate, callback) { |
| 1829 IDBFS.getLocalSet(mount, function(err, local) { |
| 1830 if (err) return callback(err); |
| 1831 |
| 1832 IDBFS.getRemoteSet(mount, function(err, remote) { |
| 1833 if (err) return callback(err); |
| 1834 |
| 1835 var src = populate ? remote : local; |
| 1836 var dst = populate ? local : remote; |
| 1837 |
| 1838 IDBFS.reconcile(src, dst, callback); |
| 1839 }); |
| 1840 }); |
| 1841 },getDB:function (name, callback) { |
| 1842 // check the cache first |
| 1843 var db = IDBFS.dbs[name]; |
| 1844 if (db) { |
| 1845 return callback(null, db); |
| 1846 } |
| 1847 |
| 1848 var req; |
| 1849 try { |
| 1850 req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION); |
| 1851 } catch (e) { |
| 1852 return callback(e); |
| 1853 } |
| 1854 req.onupgradeneeded = function(e) { |
| 1855 var db = e.target.result; |
| 1856 var transaction = e.target.transaction; |
| 1857 |
| 1858 var fileStore; |
| 1859 |
| 1860 if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) { |
| 1861 fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME); |
| 1862 } else { |
| 1863 fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME); |
| 1864 } |
| 1865 |
| 1866 fileStore.createIndex('timestamp', 'timestamp', { unique: false }); |
| 1867 }; |
| 1868 req.onsuccess = function() { |
| 1869 db = req.result; |
| 1870 |
| 1871 // add to the cache |
| 1872 IDBFS.dbs[name] = db; |
| 1873 callback(null, db); |
| 1874 }; |
| 1875 req.onerror = function() { |
| 1876 callback(this.error); |
| 1877 }; |
| 1878 },getLocalSet:function (mount, callback) { |
| 1879 var entries = {}; |
| 1880 |
| 1881 function isRealDir(p) { |
| 1882 return p !== '.' && p !== '..'; |
| 1883 }; |
| 1884 function toAbsolute(root) { |
| 1885 return function(p) { |
| 1886 return PATH.join2(root, p); |
| 1887 } |
| 1888 }; |
| 1889 |
| 1890 var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolut
e(mount.mountpoint)); |
| 1891 |
| 1892 while (check.length) { |
| 1893 var path = check.pop(); |
| 1894 var stat; |
| 1895 |
| 1896 try { |
| 1897 stat = FS.stat(path); |
| 1898 } catch (e) { |
| 1899 return callback(e); |
| 1900 } |
| 1901 |
| 1902 if (FS.isDir(stat.mode)) { |
| 1903 check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbs
olute(path))); |
| 1904 } |
| 1905 |
| 1906 entries[path] = { timestamp: stat.mtime }; |
| 1907 } |
| 1908 |
| 1909 return callback(null, { type: 'local', entries: entries }); |
| 1910 },getRemoteSet:function (mount, callback) { |
| 1911 var entries = {}; |
| 1912 |
| 1913 IDBFS.getDB(mount.mountpoint, function(err, db) { |
| 1914 if (err) return callback(err); |
| 1915 |
| 1916 var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly'); |
| 1917 transaction.onerror = function() { callback(this.error); }; |
| 1918 |
| 1919 var store = transaction.objectStore(IDBFS.DB_STORE_NAME); |
| 1920 var index = store.index('timestamp'); |
| 1921 |
| 1922 index.openKeyCursor().onsuccess = function(event) { |
| 1923 var cursor = event.target.result; |
| 1924 |
| 1925 if (!cursor) { |
| 1926 return callback(null, { type: 'remote', db: db, entries: entries }
); |
| 1927 } |
| 1928 |
| 1929 entries[cursor.primaryKey] = { timestamp: cursor.key }; |
| 1930 |
| 1931 cursor.continue(); |
| 1932 }; |
| 1933 }); |
| 1934 },loadLocalEntry:function (path, callback) { |
| 1935 var stat, node; |
| 1936 |
| 1937 try { |
| 1938 var lookup = FS.lookupPath(path); |
| 1939 node = lookup.node; |
| 1940 stat = FS.stat(path); |
| 1941 } catch (e) { |
| 1942 return callback(e); |
| 1943 } |
| 1944 |
| 1945 if (FS.isDir(stat.mode)) { |
| 1946 return callback(null, { timestamp: stat.mtime, mode: stat.mode }); |
| 1947 } else if (FS.isFile(stat.mode)) { |
| 1948 return callback(null, { timestamp: stat.mtime, mode: stat.mode, conten
ts: node.contents }); |
| 1949 } else { |
| 1950 return callback(new Error('node type not supported')); |
| 1951 } |
| 1952 },storeLocalEntry:function (path, entry, callback) { |
| 1953 try { |
| 1954 if (FS.isDir(entry.mode)) { |
| 1955 FS.mkdir(path, entry.mode); |
| 1956 } else if (FS.isFile(entry.mode)) { |
| 1957 FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: tru
e }); |
| 1958 } else { |
| 1959 return callback(new Error('node type not supported')); |
| 1960 } |
| 1961 |
| 1962 FS.utime(path, entry.timestamp, entry.timestamp); |
| 1963 } catch (e) { |
| 1964 return callback(e); |
| 1965 } |
| 1966 |
| 1967 callback(null); |
| 1968 },removeLocalEntry:function (path, callback) { |
| 1969 try { |
| 1970 var lookup = FS.lookupPath(path); |
| 1971 var stat = FS.stat(path); |
| 1972 |
| 1973 if (FS.isDir(stat.mode)) { |
| 1974 FS.rmdir(path); |
| 1975 } else if (FS.isFile(stat.mode)) { |
| 1976 FS.unlink(path); |
| 1977 } |
| 1978 } catch (e) { |
| 1979 return callback(e); |
| 1980 } |
| 1981 |
| 1982 callback(null); |
| 1983 },loadRemoteEntry:function (store, path, callback) { |
| 1984 var req = store.get(path); |
| 1985 req.onsuccess = function(event) { callback(null, event.target.result); }
; |
| 1986 req.onerror = function() { callback(this.error); }; |
| 1987 },storeRemoteEntry:function (store, path, entry, callback) { |
| 1988 var req = store.put(entry, path); |
| 1989 req.onsuccess = function() { callback(null); }; |
| 1990 req.onerror = function() { callback(this.error); }; |
| 1991 },removeRemoteEntry:function (store, path, callback) { |
| 1992 var req = store.delete(path); |
| 1993 req.onsuccess = function() { callback(null); }; |
| 1994 req.onerror = function() { callback(this.error); }; |
| 1995 },reconcile:function (src, dst, callback) { |
| 1996 var total = 0; |
| 1997 |
| 1998 var create = []; |
| 1999 Object.keys(src.entries).forEach(function (key) { |
| 2000 var e = src.entries[key]; |
| 2001 var e2 = dst.entries[key]; |
| 2002 if (!e2 || e.timestamp > e2.timestamp) { |
| 2003 create.push(key); |
| 2004 total++; |
| 2005 } |
| 2006 }); |
| 2007 |
| 2008 var remove = []; |
| 2009 Object.keys(dst.entries).forEach(function (key) { |
| 2010 var e = dst.entries[key]; |
| 2011 var e2 = src.entries[key]; |
| 2012 if (!e2) { |
| 2013 remove.push(key); |
| 2014 total++; |
| 2015 } |
| 2016 }); |
| 2017 |
| 2018 if (!total) { |
| 2019 return callback(null); |
| 2020 } |
| 2021 |
| 2022 var errored = false; |
| 2023 var completed = 0; |
| 2024 var db = src.type === 'remote' ? src.db : dst.db; |
| 2025 var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite'); |
| 2026 var store = transaction.objectStore(IDBFS.DB_STORE_NAME); |
| 2027 |
| 2028 function done(err) { |
| 2029 if (err) { |
| 2030 if (!done.errored) { |
| 2031 done.errored = true; |
| 2032 return callback(err); |
| 2033 } |
| 2034 return; |
| 2035 } |
| 2036 if (++completed >= total) { |
| 2037 return callback(null); |
| 2038 } |
| 2039 }; |
| 2040 |
| 2041 transaction.onerror = function() { done(this.error); }; |
| 2042 |
| 2043 // sort paths in ascending order so directory entries are created |
| 2044 // before the files inside them |
| 2045 create.sort().forEach(function (path) { |
| 2046 if (dst.type === 'local') { |
| 2047 IDBFS.loadRemoteEntry(store, path, function (err, entry) { |
| 2048 if (err) return done(err); |
| 2049 IDBFS.storeLocalEntry(path, entry, done); |
| 2050 }); |
| 2051 } else { |
| 2052 IDBFS.loadLocalEntry(path, function (err, entry) { |
| 2053 if (err) return done(err); |
| 2054 IDBFS.storeRemoteEntry(store, path, entry, done); |
| 2055 }); |
| 2056 } |
| 2057 }); |
| 2058 |
| 2059 // sort paths in descending order so files are deleted before their |
| 2060 // parent directories |
| 2061 remove.sort().reverse().forEach(function(path) { |
| 2062 if (dst.type === 'local') { |
| 2063 IDBFS.removeLocalEntry(path, done); |
| 2064 } else { |
| 2065 IDBFS.removeRemoteEntry(store, path, done); |
| 2066 } |
| 2067 }); |
| 2068 }}; |
| 2069 |
| 2070 var NODEFS={isWindows:false,staticInit:function () { |
| 2071 NODEFS.isWindows = !!process.platform.match(/^win/); |
| 2072 },mount:function (mount) { |
| 2073 assert(ENVIRONMENT_IS_NODE); |
| 2074 return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0); |
| 2075 },createNode:function (parent, name, mode, dev) { |
| 2076 if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) { |
| 2077 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2078 } |
| 2079 var node = FS.createNode(parent, name, mode); |
| 2080 node.node_ops = NODEFS.node_ops; |
| 2081 node.stream_ops = NODEFS.stream_ops; |
| 2082 return node; |
| 2083 },getMode:function (path) { |
| 2084 var stat; |
| 2085 try { |
| 2086 stat = fs.lstatSync(path); |
| 2087 if (NODEFS.isWindows) { |
| 2088 // On Windows, directories return permission bits 'rw-rw-rw-', even
though they have 'rwxrwxrwx', so |
| 2089 // propagate write bits to execute bits. |
| 2090 stat.mode = stat.mode | ((stat.mode & 146) >> 1); |
| 2091 } |
| 2092 } catch (e) { |
| 2093 if (!e.code) throw e; |
| 2094 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2095 } |
| 2096 return stat.mode; |
| 2097 },realPath:function (node) { |
| 2098 var parts = []; |
| 2099 while (node.parent !== node) { |
| 2100 parts.push(node.name); |
| 2101 node = node.parent; |
| 2102 } |
| 2103 parts.push(node.mount.opts.root); |
| 2104 parts.reverse(); |
| 2105 return PATH.join.apply(null, parts); |
| 2106 },flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",1
29:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a
",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"r
s",4098:"rs+"},flagsToPermissionString:function (flags) { |
| 2107 if (flags in NODEFS.flagsToPermissionStringMap) { |
| 2108 return NODEFS.flagsToPermissionStringMap[flags]; |
| 2109 } else { |
| 2110 return flags; |
| 2111 } |
| 2112 },node_ops:{getattr:function (node) { |
| 2113 var path = NODEFS.realPath(node); |
| 2114 var stat; |
| 2115 try { |
| 2116 stat = fs.lstatSync(path); |
| 2117 } catch (e) { |
| 2118 if (!e.code) throw e; |
| 2119 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2120 } |
| 2121 // node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake
them with default blksize of 4096. |
| 2122 // See http://support.microsoft.com/kb/140365 |
| 2123 if (NODEFS.isWindows && !stat.blksize) { |
| 2124 stat.blksize = 4096; |
| 2125 } |
| 2126 if (NODEFS.isWindows && !stat.blocks) { |
| 2127 stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0; |
| 2128 } |
| 2129 return { |
| 2130 dev: stat.dev, |
| 2131 ino: stat.ino, |
| 2132 mode: stat.mode, |
| 2133 nlink: stat.nlink, |
| 2134 uid: stat.uid, |
| 2135 gid: stat.gid, |
| 2136 rdev: stat.rdev, |
| 2137 size: stat.size, |
| 2138 atime: stat.atime, |
| 2139 mtime: stat.mtime, |
| 2140 ctime: stat.ctime, |
| 2141 blksize: stat.blksize, |
| 2142 blocks: stat.blocks |
| 2143 }; |
| 2144 },setattr:function (node, attr) { |
| 2145 var path = NODEFS.realPath(node); |
| 2146 try { |
| 2147 if (attr.mode !== undefined) { |
| 2148 fs.chmodSync(path, attr.mode); |
| 2149 // update the common node structure mode as well |
| 2150 node.mode = attr.mode; |
| 2151 } |
| 2152 if (attr.timestamp !== undefined) { |
| 2153 var date = new Date(attr.timestamp); |
| 2154 fs.utimesSync(path, date, date); |
| 2155 } |
| 2156 if (attr.size !== undefined) { |
| 2157 fs.truncateSync(path, attr.size); |
| 2158 } |
| 2159 } catch (e) { |
| 2160 if (!e.code) throw e; |
| 2161 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2162 } |
| 2163 },lookup:function (parent, name) { |
| 2164 var path = PATH.join2(NODEFS.realPath(parent), name); |
| 2165 var mode = NODEFS.getMode(path); |
| 2166 return NODEFS.createNode(parent, name, mode); |
| 2167 },mknod:function (parent, name, mode, dev) { |
| 2168 var node = NODEFS.createNode(parent, name, mode, dev); |
| 2169 // create the backing node for this in the fs root as well |
| 2170 var path = NODEFS.realPath(node); |
| 2171 try { |
| 2172 if (FS.isDir(node.mode)) { |
| 2173 fs.mkdirSync(path, node.mode); |
| 2174 } else { |
| 2175 fs.writeFileSync(path, '', { mode: node.mode }); |
| 2176 } |
| 2177 } catch (e) { |
| 2178 if (!e.code) throw e; |
| 2179 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2180 } |
| 2181 return node; |
| 2182 },rename:function (oldNode, newDir, newName) { |
| 2183 var oldPath = NODEFS.realPath(oldNode); |
| 2184 var newPath = PATH.join2(NODEFS.realPath(newDir), newName); |
| 2185 try { |
| 2186 fs.renameSync(oldPath, newPath); |
| 2187 } catch (e) { |
| 2188 if (!e.code) throw e; |
| 2189 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2190 } |
| 2191 },unlink:function (parent, name) { |
| 2192 var path = PATH.join2(NODEFS.realPath(parent), name); |
| 2193 try { |
| 2194 fs.unlinkSync(path); |
| 2195 } catch (e) { |
| 2196 if (!e.code) throw e; |
| 2197 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2198 } |
| 2199 },rmdir:function (parent, name) { |
| 2200 var path = PATH.join2(NODEFS.realPath(parent), name); |
| 2201 try { |
| 2202 fs.rmdirSync(path); |
| 2203 } catch (e) { |
| 2204 if (!e.code) throw e; |
| 2205 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2206 } |
| 2207 },readdir:function (node) { |
| 2208 var path = NODEFS.realPath(node); |
| 2209 try { |
| 2210 return fs.readdirSync(path); |
| 2211 } catch (e) { |
| 2212 if (!e.code) throw e; |
| 2213 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2214 } |
| 2215 },symlink:function (parent, newName, oldPath) { |
| 2216 var newPath = PATH.join2(NODEFS.realPath(parent), newName); |
| 2217 try { |
| 2218 fs.symlinkSync(oldPath, newPath); |
| 2219 } catch (e) { |
| 2220 if (!e.code) throw e; |
| 2221 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2222 } |
| 2223 },readlink:function (node) { |
| 2224 var path = NODEFS.realPath(node); |
| 2225 try { |
| 2226 return fs.readlinkSync(path); |
| 2227 } catch (e) { |
| 2228 if (!e.code) throw e; |
| 2229 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2230 } |
| 2231 }},stream_ops:{open:function (stream) { |
| 2232 var path = NODEFS.realPath(stream.node); |
| 2233 try { |
| 2234 if (FS.isFile(stream.node.mode)) { |
| 2235 stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stre
am.flags)); |
| 2236 } |
| 2237 } catch (e) { |
| 2238 if (!e.code) throw e; |
| 2239 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2240 } |
| 2241 },close:function (stream) { |
| 2242 try { |
| 2243 if (FS.isFile(stream.node.mode) && stream.nfd) { |
| 2244 fs.closeSync(stream.nfd); |
| 2245 } |
| 2246 } catch (e) { |
| 2247 if (!e.code) throw e; |
| 2248 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2249 } |
| 2250 },read:function (stream, buffer, offset, length, position) { |
| 2251 // FIXME this is terrible. |
| 2252 var nbuffer = new Buffer(length); |
| 2253 var res; |
| 2254 try { |
| 2255 res = fs.readSync(stream.nfd, nbuffer, 0, length, position); |
| 2256 } catch (e) { |
| 2257 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2258 } |
| 2259 if (res > 0) { |
| 2260 for (var i = 0; i < res; i++) { |
| 2261 buffer[offset + i] = nbuffer[i]; |
| 2262 } |
| 2263 } |
| 2264 return res; |
| 2265 },write:function (stream, buffer, offset, length, position) { |
| 2266 // FIXME this is terrible. |
| 2267 var nbuffer = new Buffer(buffer.subarray(offset, offset + length)); |
| 2268 var res; |
| 2269 try { |
| 2270 res = fs.writeSync(stream.nfd, nbuffer, 0, length, position); |
| 2271 } catch (e) { |
| 2272 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2273 } |
| 2274 return res; |
| 2275 },llseek:function (stream, offset, whence) { |
| 2276 var position = offset; |
| 2277 if (whence === 1) { // SEEK_CUR. |
| 2278 position += stream.position; |
| 2279 } else if (whence === 2) { // SEEK_END. |
| 2280 if (FS.isFile(stream.node.mode)) { |
| 2281 try { |
| 2282 var stat = fs.fstatSync(stream.nfd); |
| 2283 position += stat.size; |
| 2284 } catch (e) { |
| 2285 throw new FS.ErrnoError(ERRNO_CODES[e.code]); |
| 2286 } |
| 2287 } |
| 2288 } |
| 2289 |
| 2290 if (position < 0) { |
| 2291 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2292 } |
| 2293 |
| 2294 stream.position = position; |
| 2295 return position; |
| 2296 }}}; |
| 2297 |
| 2298 var _stdin=allocate(1, "i32*", ALLOC_STATIC); |
| 2299 |
| 2300 var _stdout=allocate(1, "i32*", ALLOC_STATIC); |
| 2301 |
| 2302 var _stderr=allocate(1, "i32*", ALLOC_STATIC); |
| 2303 |
| 2304 function _fflush(stream) { |
| 2305 // int fflush(FILE *stream); |
| 2306 // http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html |
| 2307 // we don't currently perform any user-space buffering of data |
| 2308 }var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable
:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,g
enericErrors:{},handleFSError:function (e) { |
| 2309 if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace(); |
| 2310 return ___setErrNo(e.errno); |
| 2311 },lookupPath:function (path, opts) { |
| 2312 path = PATH.resolve(FS.cwd(), path); |
| 2313 opts = opts || {}; |
| 2314 |
| 2315 var defaults = { |
| 2316 follow_mount: true, |
| 2317 recurse_count: 0 |
| 2318 }; |
| 2319 for (var key in defaults) { |
| 2320 if (opts[key] === undefined) { |
| 2321 opts[key] = defaults[key]; |
| 2322 } |
| 2323 } |
| 2324 |
| 2325 if (opts.recurse_count > 8) { // max recursive lookup of 8 |
| 2326 throw new FS.ErrnoError(ERRNO_CODES.ELOOP); |
| 2327 } |
| 2328 |
| 2329 // split the path |
| 2330 var parts = PATH.normalizeArray(path.split('/').filter(function(p) { |
| 2331 return !!p; |
| 2332 }), false); |
| 2333 |
| 2334 // start at the root |
| 2335 var current = FS.root; |
| 2336 var current_path = '/'; |
| 2337 |
| 2338 for (var i = 0; i < parts.length; i++) { |
| 2339 var islast = (i === parts.length-1); |
| 2340 if (islast && opts.parent) { |
| 2341 // stop resolving |
| 2342 break; |
| 2343 } |
| 2344 |
| 2345 current = FS.lookupNode(current, parts[i]); |
| 2346 current_path = PATH.join2(current_path, parts[i]); |
| 2347 |
| 2348 // jump to the mount's root node if this is a mountpoint |
| 2349 if (FS.isMountpoint(current)) { |
| 2350 if (!islast || (islast && opts.follow_mount)) { |
| 2351 current = current.mounted.root; |
| 2352 } |
| 2353 } |
| 2354 |
| 2355 // by default, lookupPath will not follow a symlink if it is the final
path component. |
| 2356 // setting opts.follow = true will override this behavior. |
| 2357 if (!islast || opts.follow) { |
| 2358 var count = 0; |
| 2359 while (FS.isLink(current.mode)) { |
| 2360 var link = FS.readlink(current_path); |
| 2361 current_path = PATH.resolve(PATH.dirname(current_path), link); |
| 2362 |
| 2363 var lookup = FS.lookupPath(current_path, { recurse_count: opts.rec
urse_count }); |
| 2364 current = lookup.node; |
| 2365 |
| 2366 if (count++ > 40) { // limit max consecutive symlinks to 40 (SYML
OOP_MAX). |
| 2367 throw new FS.ErrnoError(ERRNO_CODES.ELOOP); |
| 2368 } |
| 2369 } |
| 2370 } |
| 2371 } |
| 2372 |
| 2373 return { path: current_path, node: current }; |
| 2374 },getPath:function (node) { |
| 2375 var path; |
| 2376 while (true) { |
| 2377 if (FS.isRoot(node)) { |
| 2378 var mount = node.mount.mountpoint; |
| 2379 if (!path) return mount; |
| 2380 return mount[mount.length-1] !== '/' ? mount + '/' + path : mount +
path; |
| 2381 } |
| 2382 path = path ? node.name + '/' + path : node.name; |
| 2383 node = node.parent; |
| 2384 } |
| 2385 },hashName:function (parentid, name) { |
| 2386 var hash = 0; |
| 2387 |
| 2388 |
| 2389 for (var i = 0; i < name.length; i++) { |
| 2390 hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0; |
| 2391 } |
| 2392 return ((parentid + hash) >>> 0) % FS.nameTable.length; |
| 2393 },hashAddNode:function (node) { |
| 2394 var hash = FS.hashName(node.parent.id, node.name); |
| 2395 node.name_next = FS.nameTable[hash]; |
| 2396 FS.nameTable[hash] = node; |
| 2397 },hashRemoveNode:function (node) { |
| 2398 var hash = FS.hashName(node.parent.id, node.name); |
| 2399 if (FS.nameTable[hash] === node) { |
| 2400 FS.nameTable[hash] = node.name_next; |
| 2401 } else { |
| 2402 var current = FS.nameTable[hash]; |
| 2403 while (current) { |
| 2404 if (current.name_next === node) { |
| 2405 current.name_next = node.name_next; |
| 2406 break; |
| 2407 } |
| 2408 current = current.name_next; |
| 2409 } |
| 2410 } |
| 2411 },lookupNode:function (parent, name) { |
| 2412 var err = FS.mayLookup(parent); |
| 2413 if (err) { |
| 2414 throw new FS.ErrnoError(err); |
| 2415 } |
| 2416 var hash = FS.hashName(parent.id, name); |
| 2417 for (var node = FS.nameTable[hash]; node; node = node.name_next) { |
| 2418 var nodeName = node.name; |
| 2419 if (node.parent.id === parent.id && nodeName === name) { |
| 2420 return node; |
| 2421 } |
| 2422 } |
| 2423 // if we failed to find it in the cache, call into the VFS |
| 2424 return FS.lookup(parent, name); |
| 2425 },createNode:function (parent, name, mode, rdev) { |
| 2426 if (!FS.FSNode) { |
| 2427 FS.FSNode = function(parent, name, mode, rdev) { |
| 2428 if (!parent) { |
| 2429 parent = this; // root node sets parent to itself |
| 2430 } |
| 2431 this.parent = parent; |
| 2432 this.mount = parent.mount; |
| 2433 this.mounted = null; |
| 2434 this.id = FS.nextInode++; |
| 2435 this.name = name; |
| 2436 this.mode = mode; |
| 2437 this.node_ops = {}; |
| 2438 this.stream_ops = {}; |
| 2439 this.rdev = rdev; |
| 2440 }; |
| 2441 |
| 2442 FS.FSNode.prototype = {}; |
| 2443 |
| 2444 // compatibility |
| 2445 var readMode = 292 | 73; |
| 2446 var writeMode = 146; |
| 2447 |
| 2448 // NOTE we must use Object.defineProperties instead of individual call
s to |
| 2449 // Object.defineProperty in order to make closure compiler happy |
| 2450 Object.defineProperties(FS.FSNode.prototype, { |
| 2451 read: { |
| 2452 get: function() { return (this.mode & readMode) === readMode; }, |
| 2453 set: function(val) { val ? this.mode |= readMode : this.mode &= ~r
eadMode; } |
| 2454 }, |
| 2455 write: { |
| 2456 get: function() { return (this.mode & writeMode) === writeMode; }, |
| 2457 set: function(val) { val ? this.mode |= writeMode : this.mode &= ~
writeMode; } |
| 2458 }, |
| 2459 isFolder: { |
| 2460 get: function() { return FS.isDir(this.mode); }, |
| 2461 }, |
| 2462 isDevice: { |
| 2463 get: function() { return FS.isChrdev(this.mode); }, |
| 2464 }, |
| 2465 }); |
| 2466 } |
| 2467 |
| 2468 var node = new FS.FSNode(parent, name, mode, rdev); |
| 2469 |
| 2470 FS.hashAddNode(node); |
| 2471 |
| 2472 return node; |
| 2473 },destroyNode:function (node) { |
| 2474 FS.hashRemoveNode(node); |
| 2475 },isRoot:function (node) { |
| 2476 return node === node.parent; |
| 2477 },isMountpoint:function (node) { |
| 2478 return !!node.mounted; |
| 2479 },isFile:function (mode) { |
| 2480 return (mode & 61440) === 32768; |
| 2481 },isDir:function (mode) { |
| 2482 return (mode & 61440) === 16384; |
| 2483 },isLink:function (mode) { |
| 2484 return (mode & 61440) === 40960; |
| 2485 },isChrdev:function (mode) { |
| 2486 return (mode & 61440) === 8192; |
| 2487 },isBlkdev:function (mode) { |
| 2488 return (mode & 61440) === 24576; |
| 2489 },isFIFO:function (mode) { |
| 2490 return (mode & 61440) === 4096; |
| 2491 },isSocket:function (mode) { |
| 2492 return (mode & 49152) === 49152; |
| 2493 },flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,
"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218
},modeStringToFlags:function (str) { |
| 2494 var flags = FS.flagModes[str]; |
| 2495 if (typeof flags === 'undefined') { |
| 2496 throw new Error('Unknown file open mode: ' + str); |
| 2497 } |
| 2498 return flags; |
| 2499 },flagsToPermissionString:function (flag) { |
| 2500 var accmode = flag & 2097155; |
| 2501 var perms = ['r', 'w', 'rw'][accmode]; |
| 2502 if ((flag & 512)) { |
| 2503 perms += 'w'; |
| 2504 } |
| 2505 return perms; |
| 2506 },nodePermissions:function (node, perms) { |
| 2507 if (FS.ignorePermissions) { |
| 2508 return 0; |
| 2509 } |
| 2510 // return 0 if any user, group or owner bits are set. |
| 2511 if (perms.indexOf('r') !== -1 && !(node.mode & 292)) { |
| 2512 return ERRNO_CODES.EACCES; |
| 2513 } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) { |
| 2514 return ERRNO_CODES.EACCES; |
| 2515 } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) { |
| 2516 return ERRNO_CODES.EACCES; |
| 2517 } |
| 2518 return 0; |
| 2519 },mayLookup:function (dir) { |
| 2520 return FS.nodePermissions(dir, 'x'); |
| 2521 },mayCreate:function (dir, name) { |
| 2522 try { |
| 2523 var node = FS.lookupNode(dir, name); |
| 2524 return ERRNO_CODES.EEXIST; |
| 2525 } catch (e) { |
| 2526 } |
| 2527 return FS.nodePermissions(dir, 'wx'); |
| 2528 },mayDelete:function (dir, name, isdir) { |
| 2529 var node; |
| 2530 try { |
| 2531 node = FS.lookupNode(dir, name); |
| 2532 } catch (e) { |
| 2533 return e.errno; |
| 2534 } |
| 2535 var err = FS.nodePermissions(dir, 'wx'); |
| 2536 if (err) { |
| 2537 return err; |
| 2538 } |
| 2539 if (isdir) { |
| 2540 if (!FS.isDir(node.mode)) { |
| 2541 return ERRNO_CODES.ENOTDIR; |
| 2542 } |
| 2543 if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) { |
| 2544 return ERRNO_CODES.EBUSY; |
| 2545 } |
| 2546 } else { |
| 2547 if (FS.isDir(node.mode)) { |
| 2548 return ERRNO_CODES.EISDIR; |
| 2549 } |
| 2550 } |
| 2551 return 0; |
| 2552 },mayOpen:function (node, flags) { |
| 2553 if (!node) { |
| 2554 return ERRNO_CODES.ENOENT; |
| 2555 } |
| 2556 if (FS.isLink(node.mode)) { |
| 2557 return ERRNO_CODES.ELOOP; |
| 2558 } else if (FS.isDir(node.mode)) { |
| 2559 if ((flags & 2097155) !== 0 || // opening for write |
| 2560 (flags & 512)) { |
| 2561 return ERRNO_CODES.EISDIR; |
| 2562 } |
| 2563 } |
| 2564 return FS.nodePermissions(node, FS.flagsToPermissionString(flags)); |
| 2565 },MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) { |
| 2566 fd_start = fd_start || 0; |
| 2567 fd_end = fd_end || FS.MAX_OPEN_FDS; |
| 2568 for (var fd = fd_start; fd <= fd_end; fd++) { |
| 2569 if (!FS.streams[fd]) { |
| 2570 return fd; |
| 2571 } |
| 2572 } |
| 2573 throw new FS.ErrnoError(ERRNO_CODES.EMFILE); |
| 2574 },getStream:function (fd) { |
| 2575 return FS.streams[fd]; |
| 2576 },createStream:function (stream, fd_start, fd_end) { |
| 2577 if (!FS.FSStream) { |
| 2578 FS.FSStream = function(){}; |
| 2579 FS.FSStream.prototype = {}; |
| 2580 // compatibility |
| 2581 Object.defineProperties(FS.FSStream.prototype, { |
| 2582 object: { |
| 2583 get: function() { return this.node; }, |
| 2584 set: function(val) { this.node = val; } |
| 2585 }, |
| 2586 isRead: { |
| 2587 get: function() { return (this.flags & 2097155) !== 1; } |
| 2588 }, |
| 2589 isWrite: { |
| 2590 get: function() { return (this.flags & 2097155) !== 0; } |
| 2591 }, |
| 2592 isAppend: { |
| 2593 get: function() { return (this.flags & 1024); } |
| 2594 } |
| 2595 }); |
| 2596 } |
| 2597 if (0) { |
| 2598 // reuse the object |
| 2599 stream.__proto__ = FS.FSStream.prototype; |
| 2600 } else { |
| 2601 var newStream = new FS.FSStream(); |
| 2602 for (var p in stream) { |
| 2603 newStream[p] = stream[p]; |
| 2604 } |
| 2605 stream = newStream; |
| 2606 } |
| 2607 var fd = FS.nextfd(fd_start, fd_end); |
| 2608 stream.fd = fd; |
| 2609 FS.streams[fd] = stream; |
| 2610 return stream; |
| 2611 },closeStream:function (fd) { |
| 2612 FS.streams[fd] = null; |
| 2613 },getStreamFromPtr:function (ptr) { |
| 2614 return FS.streams[ptr - 1]; |
| 2615 },getPtrForStream:function (stream) { |
| 2616 return stream ? stream.fd + 1 : 0; |
| 2617 },chrdev_stream_ops:{open:function (stream) { |
| 2618 var device = FS.getDevice(stream.node.rdev); |
| 2619 // override node's stream ops with the device's |
| 2620 stream.stream_ops = device.stream_ops; |
| 2621 // forward the open call |
| 2622 if (stream.stream_ops.open) { |
| 2623 stream.stream_ops.open(stream); |
| 2624 } |
| 2625 },llseek:function () { |
| 2626 throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); |
| 2627 }},major:function (dev) { |
| 2628 return ((dev) >> 8); |
| 2629 },minor:function (dev) { |
| 2630 return ((dev) & 0xff); |
| 2631 },makedev:function (ma, mi) { |
| 2632 return ((ma) << 8 | (mi)); |
| 2633 },registerDevice:function (dev, ops) { |
| 2634 FS.devices[dev] = { stream_ops: ops }; |
| 2635 },getDevice:function (dev) { |
| 2636 return FS.devices[dev]; |
| 2637 },getMounts:function (mount) { |
| 2638 var mounts = []; |
| 2639 var check = [mount]; |
| 2640 |
| 2641 while (check.length) { |
| 2642 var m = check.pop(); |
| 2643 |
| 2644 mounts.push(m); |
| 2645 |
| 2646 check.push.apply(check, m.mounts); |
| 2647 } |
| 2648 |
| 2649 return mounts; |
| 2650 },syncfs:function (populate, callback) { |
| 2651 if (typeof(populate) === 'function') { |
| 2652 callback = populate; |
| 2653 populate = false; |
| 2654 } |
| 2655 |
| 2656 var mounts = FS.getMounts(FS.root.mount); |
| 2657 var completed = 0; |
| 2658 |
| 2659 function done(err) { |
| 2660 if (err) { |
| 2661 if (!done.errored) { |
| 2662 done.errored = true; |
| 2663 return callback(err); |
| 2664 } |
| 2665 return; |
| 2666 } |
| 2667 if (++completed >= mounts.length) { |
| 2668 callback(null); |
| 2669 } |
| 2670 }; |
| 2671 |
| 2672 // sync all mounts |
| 2673 mounts.forEach(function (mount) { |
| 2674 if (!mount.type.syncfs) { |
| 2675 return done(null); |
| 2676 } |
| 2677 mount.type.syncfs(mount, populate, done); |
| 2678 }); |
| 2679 },mount:function (type, opts, mountpoint) { |
| 2680 var root = mountpoint === '/'; |
| 2681 var pseudo = !mountpoint; |
| 2682 var node; |
| 2683 |
| 2684 if (root && FS.root) { |
| 2685 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2686 } else if (!root && !pseudo) { |
| 2687 var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); |
| 2688 |
| 2689 mountpoint = lookup.path; // use the absolute path |
| 2690 node = lookup.node; |
| 2691 |
| 2692 if (FS.isMountpoint(node)) { |
| 2693 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2694 } |
| 2695 |
| 2696 if (!FS.isDir(node.mode)) { |
| 2697 throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); |
| 2698 } |
| 2699 } |
| 2700 |
| 2701 var mount = { |
| 2702 type: type, |
| 2703 opts: opts, |
| 2704 mountpoint: mountpoint, |
| 2705 mounts: [] |
| 2706 }; |
| 2707 |
| 2708 // create a root node for the fs |
| 2709 var mountRoot = type.mount(mount); |
| 2710 mountRoot.mount = mount; |
| 2711 mount.root = mountRoot; |
| 2712 |
| 2713 if (root) { |
| 2714 FS.root = mountRoot; |
| 2715 } else if (node) { |
| 2716 // set as a mountpoint |
| 2717 node.mounted = mount; |
| 2718 |
| 2719 // add the new mount to the current mount's children |
| 2720 if (node.mount) { |
| 2721 node.mount.mounts.push(mount); |
| 2722 } |
| 2723 } |
| 2724 |
| 2725 return mountRoot; |
| 2726 },unmount:function (mountpoint) { |
| 2727 var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); |
| 2728 |
| 2729 if (!FS.isMountpoint(lookup.node)) { |
| 2730 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2731 } |
| 2732 |
| 2733 // destroy the nodes for this mount, and all its child mounts |
| 2734 var node = lookup.node; |
| 2735 var mount = node.mounted; |
| 2736 var mounts = FS.getMounts(mount); |
| 2737 |
| 2738 Object.keys(FS.nameTable).forEach(function (hash) { |
| 2739 var current = FS.nameTable[hash]; |
| 2740 |
| 2741 while (current) { |
| 2742 var next = current.name_next; |
| 2743 |
| 2744 if (mounts.indexOf(current.mount) !== -1) { |
| 2745 FS.destroyNode(current); |
| 2746 } |
| 2747 |
| 2748 current = next; |
| 2749 } |
| 2750 }); |
| 2751 |
| 2752 // no longer a mountpoint |
| 2753 node.mounted = null; |
| 2754 |
| 2755 // remove this mount from the child mounts |
| 2756 var idx = node.mount.mounts.indexOf(mount); |
| 2757 assert(idx !== -1); |
| 2758 node.mount.mounts.splice(idx, 1); |
| 2759 },lookup:function (parent, name) { |
| 2760 return parent.node_ops.lookup(parent, name); |
| 2761 },mknod:function (path, mode, dev) { |
| 2762 var lookup = FS.lookupPath(path, { parent: true }); |
| 2763 var parent = lookup.node; |
| 2764 var name = PATH.basename(path); |
| 2765 var err = FS.mayCreate(parent, name); |
| 2766 if (err) { |
| 2767 throw new FS.ErrnoError(err); |
| 2768 } |
| 2769 if (!parent.node_ops.mknod) { |
| 2770 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2771 } |
| 2772 return parent.node_ops.mknod(parent, name, mode, dev); |
| 2773 },create:function (path, mode) { |
| 2774 mode = mode !== undefined ? mode : 438 /* 0666 */; |
| 2775 mode &= 4095; |
| 2776 mode |= 32768; |
| 2777 return FS.mknod(path, mode, 0); |
| 2778 },mkdir:function (path, mode) { |
| 2779 mode = mode !== undefined ? mode : 511 /* 0777 */; |
| 2780 mode &= 511 | 512; |
| 2781 mode |= 16384; |
| 2782 return FS.mknod(path, mode, 0); |
| 2783 },mkdev:function (path, mode, dev) { |
| 2784 if (typeof(dev) === 'undefined') { |
| 2785 dev = mode; |
| 2786 mode = 438 /* 0666 */; |
| 2787 } |
| 2788 mode |= 8192; |
| 2789 return FS.mknod(path, mode, dev); |
| 2790 },symlink:function (oldpath, newpath) { |
| 2791 var lookup = FS.lookupPath(newpath, { parent: true }); |
| 2792 var parent = lookup.node; |
| 2793 var newname = PATH.basename(newpath); |
| 2794 var err = FS.mayCreate(parent, newname); |
| 2795 if (err) { |
| 2796 throw new FS.ErrnoError(err); |
| 2797 } |
| 2798 if (!parent.node_ops.symlink) { |
| 2799 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2800 } |
| 2801 return parent.node_ops.symlink(parent, newname, oldpath); |
| 2802 },rename:function (old_path, new_path) { |
| 2803 var old_dirname = PATH.dirname(old_path); |
| 2804 var new_dirname = PATH.dirname(new_path); |
| 2805 var old_name = PATH.basename(old_path); |
| 2806 var new_name = PATH.basename(new_path); |
| 2807 // parents must exist |
| 2808 var lookup, old_dir, new_dir; |
| 2809 try { |
| 2810 lookup = FS.lookupPath(old_path, { parent: true }); |
| 2811 old_dir = lookup.node; |
| 2812 lookup = FS.lookupPath(new_path, { parent: true }); |
| 2813 new_dir = lookup.node; |
| 2814 } catch (e) { |
| 2815 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2816 } |
| 2817 // need to be part of the same mount |
| 2818 if (old_dir.mount !== new_dir.mount) { |
| 2819 throw new FS.ErrnoError(ERRNO_CODES.EXDEV); |
| 2820 } |
| 2821 // source must exist |
| 2822 var old_node = FS.lookupNode(old_dir, old_name); |
| 2823 // old path should not be an ancestor of the new path |
| 2824 var relative = PATH.relative(old_path, new_dirname); |
| 2825 if (relative.charAt(0) !== '.') { |
| 2826 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2827 } |
| 2828 // new path should not be an ancestor of the old path |
| 2829 relative = PATH.relative(new_path, old_dirname); |
| 2830 if (relative.charAt(0) !== '.') { |
| 2831 throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY); |
| 2832 } |
| 2833 // see if the new path already exists |
| 2834 var new_node; |
| 2835 try { |
| 2836 new_node = FS.lookupNode(new_dir, new_name); |
| 2837 } catch (e) { |
| 2838 // not fatal |
| 2839 } |
| 2840 // early out if nothing needs to change |
| 2841 if (old_node === new_node) { |
| 2842 return; |
| 2843 } |
| 2844 // we'll need to delete the old entry |
| 2845 var isdir = FS.isDir(old_node.mode); |
| 2846 var err = FS.mayDelete(old_dir, old_name, isdir); |
| 2847 if (err) { |
| 2848 throw new FS.ErrnoError(err); |
| 2849 } |
| 2850 // need delete permissions if we'll be overwriting. |
| 2851 // need create permissions if new doesn't already exist. |
| 2852 err = new_node ? |
| 2853 FS.mayDelete(new_dir, new_name, isdir) : |
| 2854 FS.mayCreate(new_dir, new_name); |
| 2855 if (err) { |
| 2856 throw new FS.ErrnoError(err); |
| 2857 } |
| 2858 if (!old_dir.node_ops.rename) { |
| 2859 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2860 } |
| 2861 if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))
) { |
| 2862 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2863 } |
| 2864 // if we are going to change the parent, check write permissions |
| 2865 if (new_dir !== old_dir) { |
| 2866 err = FS.nodePermissions(old_dir, 'w'); |
| 2867 if (err) { |
| 2868 throw new FS.ErrnoError(err); |
| 2869 } |
| 2870 } |
| 2871 // remove the node from the lookup hash |
| 2872 FS.hashRemoveNode(old_node); |
| 2873 // do the underlying fs rename |
| 2874 try { |
| 2875 old_dir.node_ops.rename(old_node, new_dir, new_name); |
| 2876 } catch (e) { |
| 2877 throw e; |
| 2878 } finally { |
| 2879 // add the node back to the hash (in case node_ops.rename |
| 2880 // changed its name) |
| 2881 FS.hashAddNode(old_node); |
| 2882 } |
| 2883 },rmdir:function (path) { |
| 2884 var lookup = FS.lookupPath(path, { parent: true }); |
| 2885 var parent = lookup.node; |
| 2886 var name = PATH.basename(path); |
| 2887 var node = FS.lookupNode(parent, name); |
| 2888 var err = FS.mayDelete(parent, name, true); |
| 2889 if (err) { |
| 2890 throw new FS.ErrnoError(err); |
| 2891 } |
| 2892 if (!parent.node_ops.rmdir) { |
| 2893 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2894 } |
| 2895 if (FS.isMountpoint(node)) { |
| 2896 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2897 } |
| 2898 parent.node_ops.rmdir(parent, name); |
| 2899 FS.destroyNode(node); |
| 2900 },readdir:function (path) { |
| 2901 var lookup = FS.lookupPath(path, { follow: true }); |
| 2902 var node = lookup.node; |
| 2903 if (!node.node_ops.readdir) { |
| 2904 throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); |
| 2905 } |
| 2906 return node.node_ops.readdir(node); |
| 2907 },unlink:function (path) { |
| 2908 var lookup = FS.lookupPath(path, { parent: true }); |
| 2909 var parent = lookup.node; |
| 2910 var name = PATH.basename(path); |
| 2911 var node = FS.lookupNode(parent, name); |
| 2912 var err = FS.mayDelete(parent, name, false); |
| 2913 if (err) { |
| 2914 // POSIX says unlink should set EPERM, not EISDIR |
| 2915 if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM; |
| 2916 throw new FS.ErrnoError(err); |
| 2917 } |
| 2918 if (!parent.node_ops.unlink) { |
| 2919 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2920 } |
| 2921 if (FS.isMountpoint(node)) { |
| 2922 throw new FS.ErrnoError(ERRNO_CODES.EBUSY); |
| 2923 } |
| 2924 parent.node_ops.unlink(parent, name); |
| 2925 FS.destroyNode(node); |
| 2926 },readlink:function (path) { |
| 2927 var lookup = FS.lookupPath(path); |
| 2928 var link = lookup.node; |
| 2929 if (!link.node_ops.readlink) { |
| 2930 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2931 } |
| 2932 return link.node_ops.readlink(link); |
| 2933 },stat:function (path, dontFollow) { |
| 2934 var lookup = FS.lookupPath(path, { follow: !dontFollow }); |
| 2935 var node = lookup.node; |
| 2936 if (!node.node_ops.getattr) { |
| 2937 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2938 } |
| 2939 return node.node_ops.getattr(node); |
| 2940 },lstat:function (path) { |
| 2941 return FS.stat(path, true); |
| 2942 },chmod:function (path, mode, dontFollow) { |
| 2943 var node; |
| 2944 if (typeof path === 'string') { |
| 2945 var lookup = FS.lookupPath(path, { follow: !dontFollow }); |
| 2946 node = lookup.node; |
| 2947 } else { |
| 2948 node = path; |
| 2949 } |
| 2950 if (!node.node_ops.setattr) { |
| 2951 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2952 } |
| 2953 node.node_ops.setattr(node, { |
| 2954 mode: (mode & 4095) | (node.mode & ~4095), |
| 2955 timestamp: Date.now() |
| 2956 }); |
| 2957 },lchmod:function (path, mode) { |
| 2958 FS.chmod(path, mode, true); |
| 2959 },fchmod:function (fd, mode) { |
| 2960 var stream = FS.getStream(fd); |
| 2961 if (!stream) { |
| 2962 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 2963 } |
| 2964 FS.chmod(stream.node, mode); |
| 2965 },chown:function (path, uid, gid, dontFollow) { |
| 2966 var node; |
| 2967 if (typeof path === 'string') { |
| 2968 var lookup = FS.lookupPath(path, { follow: !dontFollow }); |
| 2969 node = lookup.node; |
| 2970 } else { |
| 2971 node = path; |
| 2972 } |
| 2973 if (!node.node_ops.setattr) { |
| 2974 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 2975 } |
| 2976 node.node_ops.setattr(node, { |
| 2977 timestamp: Date.now() |
| 2978 // we ignore the uid / gid for now |
| 2979 }); |
| 2980 },lchown:function (path, uid, gid) { |
| 2981 FS.chown(path, uid, gid, true); |
| 2982 },fchown:function (fd, uid, gid) { |
| 2983 var stream = FS.getStream(fd); |
| 2984 if (!stream) { |
| 2985 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 2986 } |
| 2987 FS.chown(stream.node, uid, gid); |
| 2988 },truncate:function (path, len) { |
| 2989 if (len < 0) { |
| 2990 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 2991 } |
| 2992 var node; |
| 2993 if (typeof path === 'string') { |
| 2994 var lookup = FS.lookupPath(path, { follow: true }); |
| 2995 node = lookup.node; |
| 2996 } else { |
| 2997 node = path; |
| 2998 } |
| 2999 if (!node.node_ops.setattr) { |
| 3000 throw new FS.ErrnoError(ERRNO_CODES.EPERM); |
| 3001 } |
| 3002 if (FS.isDir(node.mode)) { |
| 3003 throw new FS.ErrnoError(ERRNO_CODES.EISDIR); |
| 3004 } |
| 3005 if (!FS.isFile(node.mode)) { |
| 3006 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3007 } |
| 3008 var err = FS.nodePermissions(node, 'w'); |
| 3009 if (err) { |
| 3010 throw new FS.ErrnoError(err); |
| 3011 } |
| 3012 node.node_ops.setattr(node, { |
| 3013 size: len, |
| 3014 timestamp: Date.now() |
| 3015 }); |
| 3016 },ftruncate:function (fd, len) { |
| 3017 var stream = FS.getStream(fd); |
| 3018 if (!stream) { |
| 3019 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 3020 } |
| 3021 if ((stream.flags & 2097155) === 0) { |
| 3022 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3023 } |
| 3024 FS.truncate(stream.node, len); |
| 3025 },utime:function (path, atime, mtime) { |
| 3026 var lookup = FS.lookupPath(path, { follow: true }); |
| 3027 var node = lookup.node; |
| 3028 node.node_ops.setattr(node, { |
| 3029 timestamp: Math.max(atime, mtime) |
| 3030 }); |
| 3031 },open:function (path, flags, mode, fd_start, fd_end) { |
| 3032 flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags; |
| 3033 mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode; |
| 3034 if ((flags & 64)) { |
| 3035 mode = (mode & 4095) | 32768; |
| 3036 } else { |
| 3037 mode = 0; |
| 3038 } |
| 3039 var node; |
| 3040 if (typeof path === 'object') { |
| 3041 node = path; |
| 3042 } else { |
| 3043 path = PATH.normalize(path); |
| 3044 try { |
| 3045 var lookup = FS.lookupPath(path, { |
| 3046 follow: !(flags & 131072) |
| 3047 }); |
| 3048 node = lookup.node; |
| 3049 } catch (e) { |
| 3050 // ignore |
| 3051 } |
| 3052 } |
| 3053 // perhaps we need to create the node |
| 3054 if ((flags & 64)) { |
| 3055 if (node) { |
| 3056 // if O_CREAT and O_EXCL are set, error out if the node already exis
ts |
| 3057 if ((flags & 128)) { |
| 3058 throw new FS.ErrnoError(ERRNO_CODES.EEXIST); |
| 3059 } |
| 3060 } else { |
| 3061 // node doesn't exist, try to create it |
| 3062 node = FS.mknod(path, mode, 0); |
| 3063 } |
| 3064 } |
| 3065 if (!node) { |
| 3066 throw new FS.ErrnoError(ERRNO_CODES.ENOENT); |
| 3067 } |
| 3068 // can't truncate a device |
| 3069 if (FS.isChrdev(node.mode)) { |
| 3070 flags &= ~512; |
| 3071 } |
| 3072 // check permissions |
| 3073 var err = FS.mayOpen(node, flags); |
| 3074 if (err) { |
| 3075 throw new FS.ErrnoError(err); |
| 3076 } |
| 3077 // do truncation if necessary |
| 3078 if ((flags & 512)) { |
| 3079 FS.truncate(node, 0); |
| 3080 } |
| 3081 // we've already handled these, don't pass down to the underlying vfs |
| 3082 flags &= ~(128 | 512); |
| 3083 |
| 3084 // register the stream with the filesystem |
| 3085 var stream = FS.createStream({ |
| 3086 node: node, |
| 3087 path: FS.getPath(node), // we want the absolute path to the node |
| 3088 flags: flags, |
| 3089 seekable: true, |
| 3090 position: 0, |
| 3091 stream_ops: node.stream_ops, |
| 3092 // used by the file family libc calls (fopen, fwrite, ferror, etc.) |
| 3093 ungotten: [], |
| 3094 error: false |
| 3095 }, fd_start, fd_end); |
| 3096 // call the new stream's open function |
| 3097 if (stream.stream_ops.open) { |
| 3098 stream.stream_ops.open(stream); |
| 3099 } |
| 3100 if (Module['logReadFiles'] && !(flags & 1)) { |
| 3101 if (!FS.readFiles) FS.readFiles = {}; |
| 3102 if (!(path in FS.readFiles)) { |
| 3103 FS.readFiles[path] = 1; |
| 3104 Module['printErr']('read file: ' + path); |
| 3105 } |
| 3106 } |
| 3107 return stream; |
| 3108 },close:function (stream) { |
| 3109 try { |
| 3110 if (stream.stream_ops.close) { |
| 3111 stream.stream_ops.close(stream); |
| 3112 } |
| 3113 } catch (e) { |
| 3114 throw e; |
| 3115 } finally { |
| 3116 FS.closeStream(stream.fd); |
| 3117 } |
| 3118 },llseek:function (stream, offset, whence) { |
| 3119 if (!stream.seekable || !stream.stream_ops.llseek) { |
| 3120 throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); |
| 3121 } |
| 3122 return stream.stream_ops.llseek(stream, offset, whence); |
| 3123 },read:function (stream, buffer, offset, length, position) { |
| 3124 if (length < 0 || position < 0) { |
| 3125 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3126 } |
| 3127 if ((stream.flags & 2097155) === 1) { |
| 3128 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 3129 } |
| 3130 if (FS.isDir(stream.node.mode)) { |
| 3131 throw new FS.ErrnoError(ERRNO_CODES.EISDIR); |
| 3132 } |
| 3133 if (!stream.stream_ops.read) { |
| 3134 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3135 } |
| 3136 var seeking = true; |
| 3137 if (typeof position === 'undefined') { |
| 3138 position = stream.position; |
| 3139 seeking = false; |
| 3140 } else if (!stream.seekable) { |
| 3141 throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); |
| 3142 } |
| 3143 var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, p
osition); |
| 3144 if (!seeking) stream.position += bytesRead; |
| 3145 return bytesRead; |
| 3146 },write:function (stream, buffer, offset, length, position, canOwn) { |
| 3147 if (length < 0 || position < 0) { |
| 3148 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3149 } |
| 3150 if ((stream.flags & 2097155) === 0) { |
| 3151 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 3152 } |
| 3153 if (FS.isDir(stream.node.mode)) { |
| 3154 throw new FS.ErrnoError(ERRNO_CODES.EISDIR); |
| 3155 } |
| 3156 if (!stream.stream_ops.write) { |
| 3157 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3158 } |
| 3159 var seeking = true; |
| 3160 if (typeof position === 'undefined') { |
| 3161 position = stream.position; |
| 3162 seeking = false; |
| 3163 } else if (!stream.seekable) { |
| 3164 throw new FS.ErrnoError(ERRNO_CODES.ESPIPE); |
| 3165 } |
| 3166 if (stream.flags & 1024) { |
| 3167 // seek to the end before writing in append mode |
| 3168 FS.llseek(stream, 0, 2); |
| 3169 } |
| 3170 var bytesWritten = stream.stream_ops.write(stream, buffer, offset, lengt
h, position, canOwn); |
| 3171 if (!seeking) stream.position += bytesWritten; |
| 3172 return bytesWritten; |
| 3173 },allocate:function (stream, offset, length) { |
| 3174 if (offset < 0 || length <= 0) { |
| 3175 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 3176 } |
| 3177 if ((stream.flags & 2097155) === 0) { |
| 3178 throw new FS.ErrnoError(ERRNO_CODES.EBADF); |
| 3179 } |
| 3180 if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) { |
| 3181 throw new FS.ErrnoError(ERRNO_CODES.ENODEV); |
| 3182 } |
| 3183 if (!stream.stream_ops.allocate) { |
| 3184 throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP); |
| 3185 } |
| 3186 stream.stream_ops.allocate(stream, offset, length); |
| 3187 },mmap:function (stream, buffer, offset, length, position, prot, flags) { |
| 3188 // TODO if PROT is PROT_WRITE, make sure we have write access |
| 3189 if ((stream.flags & 2097155) === 1) { |
| 3190 throw new FS.ErrnoError(ERRNO_CODES.EACCES); |
| 3191 } |
| 3192 if (!stream.stream_ops.mmap) { |
| 3193 throw new FS.ErrnoError(ERRNO_CODES.ENODEV); |
| 3194 } |
| 3195 return stream.stream_ops.mmap(stream, buffer, offset, length, position,
prot, flags); |
| 3196 },ioctl:function (stream, cmd, arg) { |
| 3197 if (!stream.stream_ops.ioctl) { |
| 3198 throw new FS.ErrnoError(ERRNO_CODES.ENOTTY); |
| 3199 } |
| 3200 return stream.stream_ops.ioctl(stream, cmd, arg); |
| 3201 },readFile:function (path, opts) { |
| 3202 opts = opts || {}; |
| 3203 opts.flags = opts.flags || 'r'; |
| 3204 opts.encoding = opts.encoding || 'binary'; |
| 3205 if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { |
| 3206 throw new Error('Invalid encoding type "' + opts.encoding + '"'); |
| 3207 } |
| 3208 var ret; |
| 3209 var stream = FS.open(path, opts.flags); |
| 3210 var stat = FS.stat(path); |
| 3211 var length = stat.size; |
| 3212 var buf = new Uint8Array(length); |
| 3213 FS.read(stream, buf, 0, length, 0); |
| 3214 if (opts.encoding === 'utf8') { |
| 3215 ret = ''; |
| 3216 var utf8 = new Runtime.UTF8Processor(); |
| 3217 for (var i = 0; i < length; i++) { |
| 3218 ret += utf8.processCChar(buf[i]); |
| 3219 } |
| 3220 } else if (opts.encoding === 'binary') { |
| 3221 ret = buf; |
| 3222 } |
| 3223 FS.close(stream); |
| 3224 return ret; |
| 3225 },writeFile:function (path, data, opts) { |
| 3226 opts = opts || {}; |
| 3227 opts.flags = opts.flags || 'w'; |
| 3228 opts.encoding = opts.encoding || 'utf8'; |
| 3229 if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { |
| 3230 throw new Error('Invalid encoding type "' + opts.encoding + '"'); |
| 3231 } |
| 3232 var stream = FS.open(path, opts.flags, opts.mode); |
| 3233 if (opts.encoding === 'utf8') { |
| 3234 var utf8 = new Runtime.UTF8Processor(); |
| 3235 var buf = new Uint8Array(utf8.processJSString(data)); |
| 3236 FS.write(stream, buf, 0, buf.length, 0, opts.canOwn); |
| 3237 } else if (opts.encoding === 'binary') { |
| 3238 FS.write(stream, data, 0, data.length, 0, opts.canOwn); |
| 3239 } |
| 3240 FS.close(stream); |
| 3241 },cwd:function () { |
| 3242 return FS.currentPath; |
| 3243 },chdir:function (path) { |
| 3244 var lookup = FS.lookupPath(path, { follow: true }); |
| 3245 if (!FS.isDir(lookup.node.mode)) { |
| 3246 throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR); |
| 3247 } |
| 3248 var err = FS.nodePermissions(lookup.node, 'x'); |
| 3249 if (err) { |
| 3250 throw new FS.ErrnoError(err); |
| 3251 } |
| 3252 FS.currentPath = lookup.path; |
| 3253 },createDefaultDirectories:function () { |
| 3254 FS.mkdir('/tmp'); |
| 3255 },createDefaultDevices:function () { |
| 3256 // create /dev |
| 3257 FS.mkdir('/dev'); |
| 3258 // setup /dev/null |
| 3259 FS.registerDevice(FS.makedev(1, 3), { |
| 3260 read: function() { return 0; }, |
| 3261 write: function() { return 0; } |
| 3262 }); |
| 3263 FS.mkdev('/dev/null', FS.makedev(1, 3)); |
| 3264 // setup /dev/tty and /dev/tty1 |
| 3265 // stderr needs to print output using Module['printErr'] |
| 3266 // so we register a second tty just for it. |
| 3267 TTY.register(FS.makedev(5, 0), TTY.default_tty_ops); |
| 3268 TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops); |
| 3269 FS.mkdev('/dev/tty', FS.makedev(5, 0)); |
| 3270 FS.mkdev('/dev/tty1', FS.makedev(6, 0)); |
| 3271 // we're not going to emulate the actual shm device, |
| 3272 // just create the tmp dirs that reside in it commonly |
| 3273 FS.mkdir('/dev/shm'); |
| 3274 FS.mkdir('/dev/shm/tmp'); |
| 3275 },createStandardStreams:function () { |
| 3276 // TODO deprecate the old functionality of a single |
| 3277 // input / output callback and that utilizes FS.createDevice |
| 3278 // and instead require a unique set of stream ops |
| 3279 |
| 3280 // by default, we symlink the standard streams to the |
| 3281 // default tty devices. however, if the standard streams |
| 3282 // have been overwritten we create a unique device for |
| 3283 // them instead. |
| 3284 if (Module['stdin']) { |
| 3285 FS.createDevice('/dev', 'stdin', Module['stdin']); |
| 3286 } else { |
| 3287 FS.symlink('/dev/tty', '/dev/stdin'); |
| 3288 } |
| 3289 if (Module['stdout']) { |
| 3290 FS.createDevice('/dev', 'stdout', null, Module['stdout']); |
| 3291 } else { |
| 3292 FS.symlink('/dev/tty', '/dev/stdout'); |
| 3293 } |
| 3294 if (Module['stderr']) { |
| 3295 FS.createDevice('/dev', 'stderr', null, Module['stderr']); |
| 3296 } else { |
| 3297 FS.symlink('/dev/tty1', '/dev/stderr'); |
| 3298 } |
| 3299 |
| 3300 // open default streams for the stdin, stdout and stderr devices |
| 3301 var stdin = FS.open('/dev/stdin', 'r'); |
| 3302 HEAP32[((_stdin)>>2)]=FS.getPtrForStream(stdin); |
| 3303 assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')'); |
| 3304 |
| 3305 var stdout = FS.open('/dev/stdout', 'w'); |
| 3306 HEAP32[((_stdout)>>2)]=FS.getPtrForStream(stdout); |
| 3307 assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')')
; |
| 3308 |
| 3309 var stderr = FS.open('/dev/stderr', 'w'); |
| 3310 HEAP32[((_stderr)>>2)]=FS.getPtrForStream(stderr); |
| 3311 assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')')
; |
| 3312 },ensureErrnoError:function () { |
| 3313 if (FS.ErrnoError) return; |
| 3314 FS.ErrnoError = function ErrnoError(errno) { |
| 3315 this.errno = errno; |
| 3316 for (var key in ERRNO_CODES) { |
| 3317 if (ERRNO_CODES[key] === errno) { |
| 3318 this.code = key; |
| 3319 break; |
| 3320 } |
| 3321 } |
| 3322 this.message = ERRNO_MESSAGES[errno]; |
| 3323 }; |
| 3324 FS.ErrnoError.prototype = new Error(); |
| 3325 FS.ErrnoError.prototype.constructor = FS.ErrnoError; |
| 3326 // Some errors may happen quite a bit, to avoid overhead we reuse them (
and suffer a lack of stack info) |
| 3327 [ERRNO_CODES.ENOENT].forEach(function(code) { |
| 3328 FS.genericErrors[code] = new FS.ErrnoError(code); |
| 3329 FS.genericErrors[code].stack = '<generic error, no stack>'; |
| 3330 }); |
| 3331 },staticInit:function () { |
| 3332 FS.ensureErrnoError(); |
| 3333 |
| 3334 FS.nameTable = new Array(4096); |
| 3335 |
| 3336 FS.mount(MEMFS, {}, '/'); |
| 3337 |
| 3338 FS.createDefaultDirectories(); |
| 3339 FS.createDefaultDevices(); |
| 3340 },init:function (input, output, error) { |
| 3341 assert(!FS.init.initialized, 'FS.init was previously called. If you want
to initialize later with custom parameters, remove any earlier calls (note that
one is automatically added to the generated code)'); |
| 3342 FS.init.initialized = true; |
| 3343 |
| 3344 FS.ensureErrnoError(); |
| 3345 |
| 3346 // Allow Module.stdin etc. to provide defaults, if none explicitly passe
d to us here |
| 3347 Module['stdin'] = input || Module['stdin']; |
| 3348 Module['stdout'] = output || Module['stdout']; |
| 3349 Module['stderr'] = error || Module['stderr']; |
| 3350 |
| 3351 FS.createStandardStreams(); |
| 3352 },quit:function () { |
| 3353 FS.init.initialized = false; |
| 3354 for (var i = 0; i < FS.streams.length; i++) { |
| 3355 var stream = FS.streams[i]; |
| 3356 if (!stream) { |
| 3357 continue; |
| 3358 } |
| 3359 FS.close(stream); |
| 3360 } |
| 3361 },getMode:function (canRead, canWrite) { |
| 3362 var mode = 0; |
| 3363 if (canRead) mode |= 292 | 73; |
| 3364 if (canWrite) mode |= 146; |
| 3365 return mode; |
| 3366 },joinPath:function (parts, forceRelative) { |
| 3367 var path = PATH.join.apply(null, parts); |
| 3368 if (forceRelative && path[0] == '/') path = path.substr(1); |
| 3369 return path; |
| 3370 },absolutePath:function (relative, base) { |
| 3371 return PATH.resolve(base, relative); |
| 3372 },standardizePath:function (path) { |
| 3373 return PATH.normalize(path); |
| 3374 },findObject:function (path, dontResolveLastLink) { |
| 3375 var ret = FS.analyzePath(path, dontResolveLastLink); |
| 3376 if (ret.exists) { |
| 3377 return ret.object; |
| 3378 } else { |
| 3379 ___setErrNo(ret.error); |
| 3380 return null; |
| 3381 } |
| 3382 },analyzePath:function (path, dontResolveLastLink) { |
| 3383 // operate from within the context of the symlink's target |
| 3384 try { |
| 3385 var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); |
| 3386 path = lookup.path; |
| 3387 } catch (e) { |
| 3388 } |
| 3389 var ret = { |
| 3390 isRoot: false, exists: false, error: 0, name: null, path: null, object
: null, |
| 3391 parentExists: false, parentPath: null, parentObject: null |
| 3392 }; |
| 3393 try { |
| 3394 var lookup = FS.lookupPath(path, { parent: true }); |
| 3395 ret.parentExists = true; |
| 3396 ret.parentPath = lookup.path; |
| 3397 ret.parentObject = lookup.node; |
| 3398 ret.name = PATH.basename(path); |
| 3399 lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); |
| 3400 ret.exists = true; |
| 3401 ret.path = lookup.path; |
| 3402 ret.object = lookup.node; |
| 3403 ret.name = lookup.node.name; |
| 3404 ret.isRoot = lookup.path === '/'; |
| 3405 } catch (e) { |
| 3406 ret.error = e.errno; |
| 3407 }; |
| 3408 return ret; |
| 3409 },createFolder:function (parent, name, canRead, canWrite) { |
| 3410 var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(p
arent), name); |
| 3411 var mode = FS.getMode(canRead, canWrite); |
| 3412 return FS.mkdir(path, mode); |
| 3413 },createPath:function (parent, path, canRead, canWrite) { |
| 3414 parent = typeof parent === 'string' ? parent : FS.getPath(parent); |
| 3415 var parts = path.split('/').reverse(); |
| 3416 while (parts.length) { |
| 3417 var part = parts.pop(); |
| 3418 if (!part) continue; |
| 3419 var current = PATH.join2(parent, part); |
| 3420 try { |
| 3421 FS.mkdir(current); |
| 3422 } catch (e) { |
| 3423 // ignore EEXIST |
| 3424 } |
| 3425 parent = current; |
| 3426 } |
| 3427 return current; |
| 3428 },createFile:function (parent, name, properties, canRead, canWrite) { |
| 3429 var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(p
arent), name); |
| 3430 var mode = FS.getMode(canRead, canWrite); |
| 3431 return FS.create(path, mode); |
| 3432 },createDataFile:function (parent, name, data, canRead, canWrite, canOwn)
{ |
| 3433 var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.ge
tPath(parent), name) : parent; |
| 3434 var mode = FS.getMode(canRead, canWrite); |
| 3435 var node = FS.create(path, mode); |
| 3436 if (data) { |
| 3437 if (typeof data === 'string') { |
| 3438 var arr = new Array(data.length); |
| 3439 for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charC
odeAt(i); |
| 3440 data = arr; |
| 3441 } |
| 3442 // make sure we can write to the file |
| 3443 FS.chmod(node, mode | 146); |
| 3444 var stream = FS.open(node, 'w'); |
| 3445 FS.write(stream, data, 0, data.length, 0, canOwn); |
| 3446 FS.close(stream); |
| 3447 FS.chmod(node, mode); |
| 3448 } |
| 3449 return node; |
| 3450 },createDevice:function (parent, name, input, output) { |
| 3451 var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(p
arent), name); |
| 3452 var mode = FS.getMode(!!input, !!output); |
| 3453 if (!FS.createDevice.major) FS.createDevice.major = 64; |
| 3454 var dev = FS.makedev(FS.createDevice.major++, 0); |
| 3455 // Create a fake device that a set of stream ops to emulate |
| 3456 // the old behavior. |
| 3457 FS.registerDevice(dev, { |
| 3458 open: function(stream) { |
| 3459 stream.seekable = false; |
| 3460 }, |
| 3461 close: function(stream) { |
| 3462 // flush any pending line data |
| 3463 if (output && output.buffer && output.buffer.length) { |
| 3464 output(10); |
| 3465 } |
| 3466 }, |
| 3467 read: function(stream, buffer, offset, length, pos /* ignored */) { |
| 3468 var bytesRead = 0; |
| 3469 for (var i = 0; i < length; i++) { |
| 3470 var result; |
| 3471 try { |
| 3472 result = input(); |
| 3473 } catch (e) { |
| 3474 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 3475 } |
| 3476 if (result === undefined && bytesRead === 0) { |
| 3477 throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); |
| 3478 } |
| 3479 if (result === null || result === undefined) break; |
| 3480 bytesRead++; |
| 3481 buffer[offset+i] = result; |
| 3482 } |
| 3483 if (bytesRead) { |
| 3484 stream.node.timestamp = Date.now(); |
| 3485 } |
| 3486 return bytesRead; |
| 3487 }, |
| 3488 write: function(stream, buffer, offset, length, pos) { |
| 3489 for (var i = 0; i < length; i++) { |
| 3490 try { |
| 3491 output(buffer[offset+i]); |
| 3492 } catch (e) { |
| 3493 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 3494 } |
| 3495 } |
| 3496 if (length) { |
| 3497 stream.node.timestamp = Date.now(); |
| 3498 } |
| 3499 return i; |
| 3500 } |
| 3501 }); |
| 3502 return FS.mkdev(path, mode, dev); |
| 3503 },createLink:function (parent, name, target, canRead, canWrite) { |
| 3504 var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(p
arent), name); |
| 3505 return FS.symlink(target, path); |
| 3506 },forceLoadFile:function (obj) { |
| 3507 if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return tru
e; |
| 3508 var success = true; |
| 3509 if (typeof XMLHttpRequest !== 'undefined') { |
| 3510 throw new Error("Lazy loading should have been performed (contents set
) in createLazyFile, but it was not. Lazy loading only works in web workers. Use
--embed-file or --preload-file in emcc on the main thread."); |
| 3511 } else if (Module['read']) { |
| 3512 // Command-line. |
| 3513 try { |
| 3514 // WARNING: Can't read binary files in V8's d8 or tracemonkey's js,
as |
| 3515 // read() will try to parse UTF8. |
| 3516 obj.contents = intArrayFromString(Module['read'](obj.url), true); |
| 3517 } catch (e) { |
| 3518 success = false; |
| 3519 } |
| 3520 } else { |
| 3521 throw new Error('Cannot load without read() or XMLHttpRequest.'); |
| 3522 } |
| 3523 if (!success) ___setErrNo(ERRNO_CODES.EIO); |
| 3524 return success; |
| 3525 },createLazyFile:function (parent, name, url, canRead, canWrite) { |
| 3526 // Lazy chunked Uint8Array (implements get and length from Uint8Array).
Actual getting is abstracted away for eventual reuse. |
| 3527 function LazyUint8Array() { |
| 3528 this.lengthKnown = false; |
| 3529 this.chunks = []; // Loaded chunks. Index is the chunk number |
| 3530 } |
| 3531 LazyUint8Array.prototype.get = function LazyUint8Array_get(idx) { |
| 3532 if (idx > this.length-1 || idx < 0) { |
| 3533 return undefined; |
| 3534 } |
| 3535 var chunkOffset = idx % this.chunkSize; |
| 3536 var chunkNum = Math.floor(idx / this.chunkSize); |
| 3537 return this.getter(chunkNum)[chunkOffset]; |
| 3538 } |
| 3539 LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setData
Getter(getter) { |
| 3540 this.getter = getter; |
| 3541 } |
| 3542 LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLeng
th() { |
| 3543 // Find length |
| 3544 var xhr = new XMLHttpRequest(); |
| 3545 xhr.open('HEAD', url, false); |
| 3546 xhr.send(null); |
| 3547 if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304))
throw new Error("Couldn't load " + url + ". Status: " + xhr.status); |
| 3548 var datalength = Number(xhr.getResponseHeader("Content-length")); |
| 3549 var header; |
| 3550 var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges"
)) && header === "bytes"; |
| 3551 var chunkSize = 1024*1024; // Chunk size in bytes |
| 3552 |
| 3553 if (!hasByteServing) chunkSize = datalength; |
| 3554 |
| 3555 // Function to get a range from the remote URL. |
| 3556 var doXHR = (function(from, to) { |
| 3557 if (from > to) throw new Error("invalid range (" + from + ", " + t
o + ") or no bytes requested!"); |
| 3558 if (to > datalength-1) throw new Error("only " + datalength + " by
tes available! programmer error!"); |
| 3559 |
| 3560 // TODO: Use mozResponseArrayBuffer, responseStream, etc. if avail
able. |
| 3561 var xhr = new XMLHttpRequest(); |
| 3562 xhr.open('GET', url, false); |
| 3563 if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes
=" + from + "-" + to); |
| 3564 |
| 3565 // Some hints to the browser that we want binary data. |
| 3566 if (typeof Uint8Array != 'undefined') xhr.responseType = 'arraybuf
fer'; |
| 3567 if (xhr.overrideMimeType) { |
| 3568 xhr.overrideMimeType('text/plain; charset=x-user-defined'); |
| 3569 } |
| 3570 |
| 3571 xhr.send(null); |
| 3572 if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)
) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); |
| 3573 if (xhr.response !== undefined) { |
| 3574 return new Uint8Array(xhr.response || []); |
| 3575 } else { |
| 3576 return intArrayFromString(xhr.responseText || '', true); |
| 3577 } |
| 3578 }); |
| 3579 var lazyArray = this; |
| 3580 lazyArray.setDataGetter(function(chunkNum) { |
| 3581 var start = chunkNum * chunkSize; |
| 3582 var end = (chunkNum+1) * chunkSize - 1; // including this byte |
| 3583 end = Math.min(end, datalength-1); // if datalength-1 is selected,
this is the last block |
| 3584 if (typeof(lazyArray.chunks[chunkNum]) === "undefined") { |
| 3585 lazyArray.chunks[chunkNum] = doXHR(start, end); |
| 3586 } |
| 3587 if (typeof(lazyArray.chunks[chunkNum]) === "undefined") throw new
Error("doXHR failed!"); |
| 3588 return lazyArray.chunks[chunkNum]; |
| 3589 }); |
| 3590 |
| 3591 this._length = datalength; |
| 3592 this._chunkSize = chunkSize; |
| 3593 this.lengthKnown = true; |
| 3594 } |
| 3595 if (typeof XMLHttpRequest !== 'undefined') { |
| 3596 if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs o
utside webworkers in modern browsers. Use --embed-file or --preload-file in emcc
'; |
| 3597 var lazyArray = new LazyUint8Array(); |
| 3598 Object.defineProperty(lazyArray, "length", { |
| 3599 get: function() { |
| 3600 if(!this.lengthKnown) { |
| 3601 this.cacheLength(); |
| 3602 } |
| 3603 return this._length; |
| 3604 } |
| 3605 }); |
| 3606 Object.defineProperty(lazyArray, "chunkSize", { |
| 3607 get: function() { |
| 3608 if(!this.lengthKnown) { |
| 3609 this.cacheLength(); |
| 3610 } |
| 3611 return this._chunkSize; |
| 3612 } |
| 3613 }); |
| 3614 |
| 3615 var properties = { isDevice: false, contents: lazyArray }; |
| 3616 } else { |
| 3617 var properties = { isDevice: false, url: url }; |
| 3618 } |
| 3619 |
| 3620 var node = FS.createFile(parent, name, properties, canRead, canWrite); |
| 3621 // This is a total hack, but I want to get this lazy file code out of th
e |
| 3622 // core of MEMFS. If we want to keep this lazy file concept I feel it sh
ould |
| 3623 // be its own thin LAZYFS proxying calls to MEMFS. |
| 3624 if (properties.contents) { |
| 3625 node.contents = properties.contents; |
| 3626 } else if (properties.url) { |
| 3627 node.contents = null; |
| 3628 node.url = properties.url; |
| 3629 } |
| 3630 // override each stream op with one that tries to force load the lazy fi
le first |
| 3631 var stream_ops = {}; |
| 3632 var keys = Object.keys(node.stream_ops); |
| 3633 keys.forEach(function(key) { |
| 3634 var fn = node.stream_ops[key]; |
| 3635 stream_ops[key] = function forceLoadLazyFile() { |
| 3636 if (!FS.forceLoadFile(node)) { |
| 3637 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 3638 } |
| 3639 return fn.apply(null, arguments); |
| 3640 }; |
| 3641 }); |
| 3642 // use a custom read function |
| 3643 stream_ops.read = function stream_ops_read(stream, buffer, offset, lengt
h, position) { |
| 3644 if (!FS.forceLoadFile(node)) { |
| 3645 throw new FS.ErrnoError(ERRNO_CODES.EIO); |
| 3646 } |
| 3647 var contents = stream.node.contents; |
| 3648 if (position >= contents.length) |
| 3649 return 0; |
| 3650 var size = Math.min(contents.length - position, length); |
| 3651 assert(size >= 0); |
| 3652 if (contents.slice) { // normal array |
| 3653 for (var i = 0; i < size; i++) { |
| 3654 buffer[offset + i] = contents[position + i]; |
| 3655 } |
| 3656 } else { |
| 3657 for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary
XHR |
| 3658 buffer[offset + i] = contents.get(position + i); |
| 3659 } |
| 3660 } |
| 3661 return size; |
| 3662 }; |
| 3663 node.stream_ops = stream_ops; |
| 3664 return node; |
| 3665 },createPreloadedFile:function (parent, name, url, canRead, canWrite, onlo
ad, onerror, dontCreateFile, canOwn) { |
| 3666 Browser.init(); |
| 3667 // TODO we should allow people to just pass in a complete filename inste
ad |
| 3668 // of parent and name being that we just join them anyways |
| 3669 var fullname = name ? PATH.resolve(PATH.join2(parent, name)) : parent; |
| 3670 function processData(byteArray) { |
| 3671 function finish(byteArray) { |
| 3672 if (!dontCreateFile) { |
| 3673 FS.createDataFile(parent, name, byteArray, canRead, canWrite, canO
wn); |
| 3674 } |
| 3675 if (onload) onload(); |
| 3676 removeRunDependency('cp ' + fullname); |
| 3677 } |
| 3678 var handled = false; |
| 3679 Module['preloadPlugins'].forEach(function(plugin) { |
| 3680 if (handled) return; |
| 3681 if (plugin['canHandle'](fullname)) { |
| 3682 plugin['handle'](byteArray, fullname, finish, function() { |
| 3683 if (onerror) onerror(); |
| 3684 removeRunDependency('cp ' + fullname); |
| 3685 }); |
| 3686 handled = true; |
| 3687 } |
| 3688 }); |
| 3689 if (!handled) finish(byteArray); |
| 3690 } |
| 3691 addRunDependency('cp ' + fullname); |
| 3692 if (typeof url == 'string') { |
| 3693 Browser.asyncLoad(url, function(byteArray) { |
| 3694 processData(byteArray); |
| 3695 }, onerror); |
| 3696 } else { |
| 3697 processData(url); |
| 3698 } |
| 3699 },indexedDB:function () { |
| 3700 return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB
|| window.msIndexedDB; |
| 3701 },DB_NAME:function () { |
| 3702 return 'EM_FS_' + window.location.pathname; |
| 3703 },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, o
nload, onerror) { |
| 3704 onload = onload || function(){}; |
| 3705 onerror = onerror || function(){}; |
| 3706 var indexedDB = FS.indexedDB(); |
| 3707 try { |
| 3708 var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); |
| 3709 } catch (e) { |
| 3710 return onerror(e); |
| 3711 } |
| 3712 openRequest.onupgradeneeded = function openRequest_onupgradeneeded() { |
| 3713 console.log('creating db'); |
| 3714 var db = openRequest.result; |
| 3715 db.createObjectStore(FS.DB_STORE_NAME); |
| 3716 }; |
| 3717 openRequest.onsuccess = function openRequest_onsuccess() { |
| 3718 var db = openRequest.result; |
| 3719 var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite'); |
| 3720 var files = transaction.objectStore(FS.DB_STORE_NAME); |
| 3721 var ok = 0, fail = 0, total = paths.length; |
| 3722 function finish() { |
| 3723 if (fail == 0) onload(); else onerror(); |
| 3724 } |
| 3725 paths.forEach(function(path) { |
| 3726 var putRequest = files.put(FS.analyzePath(path).object.contents, pat
h); |
| 3727 putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (o
k + fail == total) finish() }; |
| 3728 putRequest.onerror = function putRequest_onerror() { fail++; if (ok
+ fail == total) finish() }; |
| 3729 }); |
| 3730 transaction.onerror = onerror; |
| 3731 }; |
| 3732 openRequest.onerror = onerror; |
| 3733 },loadFilesFromDB:function (paths, onload, onerror) { |
| 3734 onload = onload || function(){}; |
| 3735 onerror = onerror || function(){}; |
| 3736 var indexedDB = FS.indexedDB(); |
| 3737 try { |
| 3738 var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); |
| 3739 } catch (e) { |
| 3740 return onerror(e); |
| 3741 } |
| 3742 openRequest.onupgradeneeded = onerror; // no database to load from |
| 3743 openRequest.onsuccess = function openRequest_onsuccess() { |
| 3744 var db = openRequest.result; |
| 3745 try { |
| 3746 var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly'); |
| 3747 } catch(e) { |
| 3748 onerror(e); |
| 3749 return; |
| 3750 } |
| 3751 var files = transaction.objectStore(FS.DB_STORE_NAME); |
| 3752 var ok = 0, fail = 0, total = paths.length; |
| 3753 function finish() { |
| 3754 if (fail == 0) onload(); else onerror(); |
| 3755 } |
| 3756 paths.forEach(function(path) { |
| 3757 var getRequest = files.get(path); |
| 3758 getRequest.onsuccess = function getRequest_onsuccess() { |
| 3759 if (FS.analyzePath(path).exists) { |
| 3760 FS.unlink(path); |
| 3761 } |
| 3762 FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequ
est.result, true, true, true); |
| 3763 ok++; |
| 3764 if (ok + fail == total) finish(); |
| 3765 }; |
| 3766 getRequest.onerror = function getRequest_onerror() { fail++; if (ok
+ fail == total) finish() }; |
| 3767 }); |
| 3768 transaction.onerror = onerror; |
| 3769 }; |
| 3770 openRequest.onerror = onerror; |
| 3771 }};var PATH={splitPath:function (filename) { |
| 3772 var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?
:[\/]*)$/; |
| 3773 return splitPathRe.exec(filename).slice(1); |
| 3774 },normalizeArray:function (parts, allowAboveRoot) { |
| 3775 // if the path tries to go above the root, `up` ends up > 0 |
| 3776 var up = 0; |
| 3777 for (var i = parts.length - 1; i >= 0; i--) { |
| 3778 var last = parts[i]; |
| 3779 if (last === '.') { |
| 3780 parts.splice(i, 1); |
| 3781 } else if (last === '..') { |
| 3782 parts.splice(i, 1); |
| 3783 up++; |
| 3784 } else if (up) { |
| 3785 parts.splice(i, 1); |
| 3786 up--; |
| 3787 } |
| 3788 } |
| 3789 // if the path is allowed to go above the root, restore leading ..s |
| 3790 if (allowAboveRoot) { |
| 3791 for (; up--; up) { |
| 3792 parts.unshift('..'); |
| 3793 } |
| 3794 } |
| 3795 return parts; |
| 3796 },normalize:function (path) { |
| 3797 var isAbsolute = path.charAt(0) === '/', |
| 3798 trailingSlash = path.substr(-1) === '/'; |
| 3799 // Normalize the path |
| 3800 path = PATH.normalizeArray(path.split('/').filter(function(p) { |
| 3801 return !!p; |
| 3802 }), !isAbsolute).join('/'); |
| 3803 if (!path && !isAbsolute) { |
| 3804 path = '.'; |
| 3805 } |
| 3806 if (path && trailingSlash) { |
| 3807 path += '/'; |
| 3808 } |
| 3809 return (isAbsolute ? '/' : '') + path; |
| 3810 },dirname:function (path) { |
| 3811 var result = PATH.splitPath(path), |
| 3812 root = result[0], |
| 3813 dir = result[1]; |
| 3814 if (!root && !dir) { |
| 3815 // No dirname whatsoever |
| 3816 return '.'; |
| 3817 } |
| 3818 if (dir) { |
| 3819 // It has a dirname, strip trailing slash |
| 3820 dir = dir.substr(0, dir.length - 1); |
| 3821 } |
| 3822 return root + dir; |
| 3823 },basename:function (path) { |
| 3824 // EMSCRIPTEN return '/'' for '/', not an empty string |
| 3825 if (path === '/') return '/'; |
| 3826 var lastSlash = path.lastIndexOf('/'); |
| 3827 if (lastSlash === -1) return path; |
| 3828 return path.substr(lastSlash+1); |
| 3829 },extname:function (path) { |
| 3830 return PATH.splitPath(path)[3]; |
| 3831 },join:function () { |
| 3832 var paths = Array.prototype.slice.call(arguments, 0); |
| 3833 return PATH.normalize(paths.join('/')); |
| 3834 },join2:function (l, r) { |
| 3835 return PATH.normalize(l + '/' + r); |
| 3836 },resolve:function () { |
| 3837 var resolvedPath = '', |
| 3838 resolvedAbsolute = false; |
| 3839 for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { |
| 3840 var path = (i >= 0) ? arguments[i] : FS.cwd(); |
| 3841 // Skip empty and invalid entries |
| 3842 if (typeof path !== 'string') { |
| 3843 throw new TypeError('Arguments to path.resolve must be strings'); |
| 3844 } else if (!path) { |
| 3845 continue; |
| 3846 } |
| 3847 resolvedPath = path + '/' + resolvedPath; |
| 3848 resolvedAbsolute = path.charAt(0) === '/'; |
| 3849 } |
| 3850 // At this point the path should be resolved to a full absolute path, bu
t |
| 3851 // handle relative paths to be safe (might happen when process.cwd() fai
ls) |
| 3852 resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(functi
on(p) { |
| 3853 return !!p; |
| 3854 }), !resolvedAbsolute).join('/'); |
| 3855 return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; |
| 3856 },relative:function (from, to) { |
| 3857 from = PATH.resolve(from).substr(1); |
| 3858 to = PATH.resolve(to).substr(1); |
| 3859 function trim(arr) { |
| 3860 var start = 0; |
| 3861 for (; start < arr.length; start++) { |
| 3862 if (arr[start] !== '') break; |
| 3863 } |
| 3864 var end = arr.length - 1; |
| 3865 for (; end >= 0; end--) { |
| 3866 if (arr[end] !== '') break; |
| 3867 } |
| 3868 if (start > end) return []; |
| 3869 return arr.slice(start, end - start + 1); |
| 3870 } |
| 3871 var fromParts = trim(from.split('/')); |
| 3872 var toParts = trim(to.split('/')); |
| 3873 var length = Math.min(fromParts.length, toParts.length); |
| 3874 var samePartsLength = length; |
| 3875 for (var i = 0; i < length; i++) { |
| 3876 if (fromParts[i] !== toParts[i]) { |
| 3877 samePartsLength = i; |
| 3878 break; |
| 3879 } |
| 3880 } |
| 3881 var outputParts = []; |
| 3882 for (var i = samePartsLength; i < fromParts.length; i++) { |
| 3883 outputParts.push('..'); |
| 3884 } |
| 3885 outputParts = outputParts.concat(toParts.slice(samePartsLength)); |
| 3886 return outputParts.join('/'); |
| 3887 }};var Browser={mainLoop:{scheduler:null,method:"",shouldPause:false,pause
d:false,queue:[],pause:function () { |
| 3888 Browser.mainLoop.shouldPause = true; |
| 3889 },resume:function () { |
| 3890 if (Browser.mainLoop.paused) { |
| 3891 Browser.mainLoop.paused = false; |
| 3892 Browser.mainLoop.scheduler(); |
| 3893 } |
| 3894 Browser.mainLoop.shouldPause = false; |
| 3895 },updateStatus:function () { |
| 3896 if (Module['setStatus']) { |
| 3897 var message = Module['statusMessage'] || 'Please wait...'; |
| 3898 var remaining = Browser.mainLoop.remainingBlockers; |
| 3899 var expected = Browser.mainLoop.expectedBlockers; |
| 3900 if (remaining) { |
| 3901 if (remaining < expected) { |
| 3902 Module['setStatus'](message + ' (' + (expected - remaining) + '/
' + expected + ')'); |
| 3903 } else { |
| 3904 Module['setStatus'](message); |
| 3905 } |
| 3906 } else { |
| 3907 Module['setStatus'](''); |
| 3908 } |
| 3909 } |
| 3910 }},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[]
,workers:[],init:function () { |
| 3911 if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs t
o exist even in workers |
| 3912 |
| 3913 if (Browser.initted || ENVIRONMENT_IS_WORKER) return; |
| 3914 Browser.initted = true; |
| 3915 |
| 3916 try { |
| 3917 new Blob(); |
| 3918 Browser.hasBlobConstructor = true; |
| 3919 } catch(e) { |
| 3920 Browser.hasBlobConstructor = false; |
| 3921 console.log("warning: no blob constructor, cannot create blobs with mi
metypes"); |
| 3922 } |
| 3923 Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuil
der : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.h
asBlobConstructor ? console.log("warning: no BlobBuilder") : null)); |
| 3924 Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.
URL : window.webkitURL) : undefined; |
| 3925 if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined')
{ |
| 3926 console.log("warning: Browser does not support creating object URLs. B
uilt-in browser image decoding will not be available."); |
| 3927 Module.noImageDecoding = true; |
| 3928 } |
| 3929 |
| 3930 // Support for plugins that can process preloaded files. You can add mor
e of these to |
| 3931 // your app by creating and appending to Module.preloadPlugins. |
| 3932 // |
| 3933 // Each plugin is asked if it can handle a file based on the file's name
. If it can, |
| 3934 // it is given the file's raw data. When it is done, it calls a callback
with the file's |
| 3935 // (possibly modified) data. For example, a plugin might decompress a fi
le, or it |
| 3936 // might create some side data structure for use later (like an Image el
ement, etc.). |
| 3937 |
| 3938 var imagePlugin = {}; |
| 3939 imagePlugin['canHandle'] = function imagePlugin_canHandle(name) { |
| 3940 return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name); |
| 3941 }; |
| 3942 imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onl
oad, onerror) { |
| 3943 var b = null; |
| 3944 if (Browser.hasBlobConstructor) { |
| 3945 try { |
| 3946 b = new Blob([byteArray], { type: Browser.getMimetype(name) }); |
| 3947 if (b.size !== byteArray.length) { // Safari bug #118630 |
| 3948 // Safari's Blob can only take an ArrayBuffer |
| 3949 b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Brows
er.getMimetype(name) }); |
| 3950 } |
| 3951 } catch(e) { |
| 3952 Runtime.warnOnce('Blob constructor present but fails: ' + e + '; f
alling back to blob builder'); |
| 3953 } |
| 3954 } |
| 3955 if (!b) { |
| 3956 var bb = new Browser.BlobBuilder(); |
| 3957 bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a
buffer, and must copy the array to get the right data range |
| 3958 b = bb.getBlob(); |
| 3959 } |
| 3960 var url = Browser.URLObject.createObjectURL(b); |
| 3961 var img = new Image(); |
| 3962 img.onload = function img_onload() { |
| 3963 assert(img.complete, 'Image ' + name + ' could not be decoded'); |
| 3964 var canvas = document.createElement('canvas'); |
| 3965 canvas.width = img.width; |
| 3966 canvas.height = img.height; |
| 3967 var ctx = canvas.getContext('2d'); |
| 3968 ctx.drawImage(img, 0, 0); |
| 3969 Module["preloadedImages"][name] = canvas; |
| 3970 Browser.URLObject.revokeObjectURL(url); |
| 3971 if (onload) onload(byteArray); |
| 3972 }; |
| 3973 img.onerror = function img_onerror(event) { |
| 3974 console.log('Image ' + url + ' could not be decoded'); |
| 3975 if (onerror) onerror(); |
| 3976 }; |
| 3977 img.src = url; |
| 3978 }; |
| 3979 Module['preloadPlugins'].push(imagePlugin); |
| 3980 |
| 3981 var audioPlugin = {}; |
| 3982 audioPlugin['canHandle'] = function audioPlugin_canHandle(name) { |
| 3983 return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wa
v': 1, '.mp3': 1 }; |
| 3984 }; |
| 3985 audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onl
oad, onerror) { |
| 3986 var done = false; |
| 3987 function finish(audio) { |
| 3988 if (done) return; |
| 3989 done = true; |
| 3990 Module["preloadedAudios"][name] = audio; |
| 3991 if (onload) onload(byteArray); |
| 3992 } |
| 3993 function fail() { |
| 3994 if (done) return; |
| 3995 done = true; |
| 3996 Module["preloadedAudios"][name] = new Audio(); // empty shim |
| 3997 if (onerror) onerror(); |
| 3998 } |
| 3999 if (Browser.hasBlobConstructor) { |
| 4000 try { |
| 4001 var b = new Blob([byteArray], { type: Browser.getMimetype(name) })
; |
| 4002 } catch(e) { |
| 4003 return fail(); |
| 4004 } |
| 4005 var url = Browser.URLObject.createObjectURL(b); // XXX we never revo
ke this! |
| 4006 var audio = new Audio(); |
| 4007 audio.addEventListener('canplaythrough', function() { finish(audio)
}, false); // use addEventListener due to chromium bug 124926 |
| 4008 audio.onerror = function audio_onerror(event) { |
| 4009 if (done) return; |
| 4010 console.log('warning: browser could not fully decode audio ' + nam
e + ', trying slower base64 approach'); |
| 4011 function encode64(data) { |
| 4012 var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
0123456789+/'; |
| 4013 var PAD = '='; |
| 4014 var ret = ''; |
| 4015 var leftchar = 0; |
| 4016 var leftbits = 0; |
| 4017 for (var i = 0; i < data.length; i++) { |
| 4018 leftchar = (leftchar << 8) | data[i]; |
| 4019 leftbits += 8; |
| 4020 while (leftbits >= 6) { |
| 4021 var curr = (leftchar >> (leftbits-6)) & 0x3f; |
| 4022 leftbits -= 6; |
| 4023 ret += BASE[curr]; |
| 4024 } |
| 4025 } |
| 4026 if (leftbits == 2) { |
| 4027 ret += BASE[(leftchar&3) << 4]; |
| 4028 ret += PAD + PAD; |
| 4029 } else if (leftbits == 4) { |
| 4030 ret += BASE[(leftchar&0xf) << 2]; |
| 4031 ret += PAD; |
| 4032 } |
| 4033 return ret; |
| 4034 } |
| 4035 audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encod
e64(byteArray); |
| 4036 finish(audio); // we don't wait for confirmation this worked - but
it's worth trying |
| 4037 }; |
| 4038 audio.src = url; |
| 4039 // workaround for chrome bug 124926 - we do not always get oncanplay
through or onerror |
| 4040 Browser.safeSetTimeout(function() { |
| 4041 finish(audio); // try to use it even though it is not necessarily
ready to play |
| 4042 }, 10000); |
| 4043 } else { |
| 4044 return fail(); |
| 4045 } |
| 4046 }; |
| 4047 Module['preloadPlugins'].push(audioPlugin); |
| 4048 |
| 4049 // Canvas event setup |
| 4050 |
| 4051 var canvas = Module['canvas']; |
| 4052 |
| 4053 // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on
Module |
| 4054 // Module['forcedAspectRatio'] = 4 / 3; |
| 4055 |
| 4056 canvas.requestPointerLock = canvas['requestPointerLock'] || |
| 4057 canvas['mozRequestPointerLock'] || |
| 4058 canvas['webkitRequestPointerLock'] || |
| 4059 canvas['msRequestPointerLock'] || |
| 4060 function(){}; |
| 4061 canvas.exitPointerLock = document['exitPointerLock'] || |
| 4062 document['mozExitPointerLock'] || |
| 4063 document['webkitExitPointerLock'] || |
| 4064 document['msExitPointerLock'] || |
| 4065 function(){}; // no-op if function does not exi
st |
| 4066 canvas.exitPointerLock = canvas.exitPointerLock.bind(document); |
| 4067 |
| 4068 function pointerLockChange() { |
| 4069 Browser.pointerLock = document['pointerLockElement'] === canvas || |
| 4070 document['mozPointerLockElement'] === canvas || |
| 4071 document['webkitPointerLockElement'] === canvas
|| |
| 4072 document['msPointerLockElement'] === canvas; |
| 4073 } |
| 4074 |
| 4075 document.addEventListener('pointerlockchange', pointerLockChange, false)
; |
| 4076 document.addEventListener('mozpointerlockchange', pointerLockChange, fal
se); |
| 4077 document.addEventListener('webkitpointerlockchange', pointerLockChange,
false); |
| 4078 document.addEventListener('mspointerlockchange', pointerLockChange, fals
e); |
| 4079 |
| 4080 if (Module['elementPointerLock']) { |
| 4081 canvas.addEventListener("click", function(ev) { |
| 4082 if (!Browser.pointerLock && canvas.requestPointerLock) { |
| 4083 canvas.requestPointerLock(); |
| 4084 ev.preventDefault(); |
| 4085 } |
| 4086 }, false); |
| 4087 } |
| 4088 },createContext:function (canvas, useWebGL, setInModule, webGLContextAttri
butes) { |
| 4089 var ctx; |
| 4090 var errorInfo = '?'; |
| 4091 function onContextCreationError(event) { |
| 4092 errorInfo = event.statusMessage || errorInfo; |
| 4093 } |
| 4094 try { |
| 4095 if (useWebGL) { |
| 4096 var contextAttributes = { |
| 4097 antialias: false, |
| 4098 alpha: false |
| 4099 }; |
| 4100 |
| 4101 if (webGLContextAttributes) { |
| 4102 for (var attribute in webGLContextAttributes) { |
| 4103 contextAttributes[attribute] = webGLContextAttributes[attribute]
; |
| 4104 } |
| 4105 } |
| 4106 |
| 4107 |
| 4108 canvas.addEventListener('webglcontextcreationerror', onContextCreati
onError, false); |
| 4109 try { |
| 4110 ['experimental-webgl', 'webgl'].some(function(webglId) { |
| 4111 return ctx = canvas.getContext(webglId, contextAttributes); |
| 4112 }); |
| 4113 } finally { |
| 4114 canvas.removeEventListener('webglcontextcreationerror', onContextC
reationError, false); |
| 4115 } |
| 4116 } else { |
| 4117 ctx = canvas.getContext('2d'); |
| 4118 } |
| 4119 if (!ctx) throw ':('; |
| 4120 } catch (e) { |
| 4121 Module.print('Could not create canvas: ' + [errorInfo, e]); |
| 4122 return null; |
| 4123 } |
| 4124 if (useWebGL) { |
| 4125 // Set the background of the WebGL canvas to black |
| 4126 canvas.style.backgroundColor = "black"; |
| 4127 |
| 4128 // Warn on context loss |
| 4129 canvas.addEventListener('webglcontextlost', function(event) { |
| 4130 alert('WebGL context lost. You will need to reload the page.'); |
| 4131 }, false); |
| 4132 } |
| 4133 if (setInModule) { |
| 4134 GLctx = Module.ctx = ctx; |
| 4135 Module.useWebGL = useWebGL; |
| 4136 Browser.moduleContextCreatedCallbacks.forEach(function(callback) { cal
lback() }); |
| 4137 Browser.init(); |
| 4138 } |
| 4139 return ctx; |
| 4140 },destroyContext:function (canvas, useWebGL, setInModule) {},fullScreenHan
dlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullScr
een:function (lockPointer, resizeCanvas) { |
| 4141 Browser.lockPointer = lockPointer; |
| 4142 Browser.resizeCanvas = resizeCanvas; |
| 4143 if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = tr
ue; |
| 4144 if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas =
false; |
| 4145 |
| 4146 var canvas = Module['canvas']; |
| 4147 function fullScreenChange() { |
| 4148 Browser.isFullScreen = false; |
| 4149 var canvasContainer = canvas.parentNode; |
| 4150 if ((document['webkitFullScreenElement'] || document['webkitFullscreen
Element'] || |
| 4151 document['mozFullScreenElement'] || document['mozFullscreenElemen
t'] || |
| 4152 document['fullScreenElement'] || document['fullscreenElement'] || |
| 4153 document['msFullScreenElement'] || document['msFullscreenElement'
] || |
| 4154 document['webkitCurrentFullScreenElement']) === canvasContainer)
{ |
| 4155 canvas.cancelFullScreen = document['cancelFullScreen'] || |
| 4156 document['mozCancelFullScreen'] || |
| 4157 document['webkitCancelFullScreen'] || |
| 4158 document['msExitFullscreen'] || |
| 4159 document['exitFullscreen'] || |
| 4160 function() {}; |
| 4161 canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document); |
| 4162 if (Browser.lockPointer) canvas.requestPointerLock(); |
| 4163 Browser.isFullScreen = true; |
| 4164 if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize(); |
| 4165 } else { |
| 4166 |
| 4167 // remove the full screen specific parent of the canvas again to res
tore the HTML structure from before going full screen |
| 4168 canvasContainer.parentNode.insertBefore(canvas, canvasContainer); |
| 4169 canvasContainer.parentNode.removeChild(canvasContainer); |
| 4170 |
| 4171 if (Browser.resizeCanvas) Browser.setWindowedCanvasSize(); |
| 4172 } |
| 4173 if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullScree
n); |
| 4174 Browser.updateCanvasDimensions(canvas); |
| 4175 } |
| 4176 |
| 4177 if (!Browser.fullScreenHandlersInstalled) { |
| 4178 Browser.fullScreenHandlersInstalled = true; |
| 4179 document.addEventListener('fullscreenchange', fullScreenChange, false)
; |
| 4180 document.addEventListener('mozfullscreenchange', fullScreenChange, fal
se); |
| 4181 document.addEventListener('webkitfullscreenchange', fullScreenChange,
false); |
| 4182 document.addEventListener('MSFullscreenChange', fullScreenChange, fals
e); |
| 4183 } |
| 4184 |
| 4185 // create a new parent to ensure the canvas has no siblings. this allows
browsers to optimize full screen performance when its parent is the full screen
root |
| 4186 var canvasContainer = document.createElement("div"); |
| 4187 canvas.parentNode.insertBefore(canvasContainer, canvas); |
| 4188 canvasContainer.appendChild(canvas); |
| 4189 |
| 4190 // use parent of canvas as full screen root to allow aspect ratio correc
tion (Firefox stretches the root to screen size) |
| 4191 canvasContainer.requestFullScreen = canvasContainer['requestFullScreen']
|| |
| 4192 canvasContainer['mozRequestFullScree
n'] || |
| 4193 canvasContainer['msRequestFullscreen
'] || |
| 4194 (canvasContainer['webkitRequestFullSc
reen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_
KEYBOARD_INPUT']) } : null); |
| 4195 canvasContainer.requestFullScreen(); |
| 4196 },requestAnimationFrame:function requestAnimationFrame(func) { |
| 4197 if (typeof window === 'undefined') { // Provide fallback to setTimeout i
f window is undefined (e.g. in Node.js) |
| 4198 setTimeout(func, 1000/60); |
| 4199 } else { |
| 4200 if (!window.requestAnimationFrame) { |
| 4201 window.requestAnimationFrame = window['requestAnimationFrame'] || |
| 4202 window['mozRequestAnimationFrame'] || |
| 4203 window['webkitRequestAnimationFrame']
|| |
| 4204 window['msRequestAnimationFrame'] || |
| 4205 window['oRequestAnimationFrame'] || |
| 4206 window['setTimeout']; |
| 4207 } |
| 4208 window.requestAnimationFrame(func); |
| 4209 } |
| 4210 },safeCallback:function (func) { |
| 4211 return function() { |
| 4212 if (!ABORT) return func.apply(null, arguments); |
| 4213 }; |
| 4214 },safeRequestAnimationFrame:function (func) { |
| 4215 return Browser.requestAnimationFrame(function() { |
| 4216 if (!ABORT) func(); |
| 4217 }); |
| 4218 },safeSetTimeout:function (func, timeout) { |
| 4219 return setTimeout(function() { |
| 4220 if (!ABORT) func(); |
| 4221 }, timeout); |
| 4222 },safeSetInterval:function (func, timeout) { |
| 4223 return setInterval(function() { |
| 4224 if (!ABORT) func(); |
| 4225 }, timeout); |
| 4226 },getMimetype:function (name) { |
| 4227 return { |
| 4228 'jpg': 'image/jpeg', |
| 4229 'jpeg': 'image/jpeg', |
| 4230 'png': 'image/png', |
| 4231 'bmp': 'image/bmp', |
| 4232 'ogg': 'audio/ogg', |
| 4233 'wav': 'audio/wav', |
| 4234 'mp3': 'audio/mpeg' |
| 4235 }[name.substr(name.lastIndexOf('.')+1)]; |
| 4236 },getUserMedia:function (func) { |
| 4237 if(!window.getUserMedia) { |
| 4238 window.getUserMedia = navigator['getUserMedia'] || |
| 4239 navigator['mozGetUserMedia']; |
| 4240 } |
| 4241 window.getUserMedia(func); |
| 4242 },getMovementX:function (event) { |
| 4243 return event['movementX'] || |
| 4244 event['mozMovementX'] || |
| 4245 event['webkitMovementX'] || |
| 4246 0; |
| 4247 },getMovementY:function (event) { |
| 4248 return event['movementY'] || |
| 4249 event['mozMovementY'] || |
| 4250 event['webkitMovementY'] || |
| 4251 0; |
| 4252 },getMouseWheelDelta:function (event) { |
| 4253 return Math.max(-1, Math.min(1, event.type === 'DOMMouseScroll' ? event.
detail : -event.wheelDelta)); |
| 4254 },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,calculateMouseEvent:
function (event) { // event should be mousemove, mousedown or mouseup |
| 4255 if (Browser.pointerLock) { |
| 4256 // When the pointer is locked, calculate the coordinates |
| 4257 // based on the movement of the mouse. |
| 4258 // Workaround for Firefox bug 764498 |
| 4259 if (event.type != 'mousemove' && |
| 4260 ('mozMovementX' in event)) { |
| 4261 Browser.mouseMovementX = Browser.mouseMovementY = 0; |
| 4262 } else { |
| 4263 Browser.mouseMovementX = Browser.getMovementX(event); |
| 4264 Browser.mouseMovementY = Browser.getMovementY(event); |
| 4265 } |
| 4266 |
| 4267 // check if SDL is available |
| 4268 if (typeof SDL != "undefined") { |
| 4269 Browser.mouseX = SDL.mouseX + Browser.mouseMovementX; |
| 4270 Browser.mouseY = SDL.mouseY + Browser.mouseMovementY; |
| 4271 } else { |
| 4272 // just add the mouse delta to the current absolut mouse position |
| 4273 // FIXME: ideally this should be clamped against the canvas size and zero |
| 4274 Browser.mouseX += Browser.mouseMovementX; |
| 4275 Browser.mouseY += Browser.mouseMovementY; |
| 4276 } |
| 4277 } else { |
| 4278 // Otherwise, calculate the movement based on the changes |
| 4279 // in the coordinates. |
| 4280 var rect = Module["canvas"].getBoundingClientRect(); |
| 4281 var x, y; |
| 4282 |
| 4283 // Neither .scrollX or .pageXOffset are defined in a spec, but |
| 4284 // we prefer .scrollX because it is currently in a spec draft. |
| 4285 // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/) |
| 4286 var scrollX = ((typeof window.scrollX !== 'undefined') ? window.scroll
X : window.pageXOffset); |
| 4287 var scrollY = ((typeof window.scrollY !== 'undefined') ? window.scroll
Y : window.pageYOffset); |
| 4288 if (event.type == 'touchstart' || |
| 4289 event.type == 'touchend' || |
| 4290 event.type == 'touchmove') { |
| 4291 var t = event.touches.item(0); |
| 4292 if (t) { |
| 4293 x = t.pageX - (scrollX + rect.left); |
| 4294 y = t.pageY - (scrollY + rect.top); |
| 4295 } else { |
| 4296 return; |
| 4297 } |
| 4298 } else { |
| 4299 x = event.pageX - (scrollX + rect.left); |
| 4300 y = event.pageY - (scrollY + rect.top); |
| 4301 } |
| 4302 |
| 4303 // the canvas might be CSS-scaled compared to its backbuffer; |
| 4304 // SDL-using content will want mouse coordinates in terms |
| 4305 // of backbuffer units. |
| 4306 var cw = Module["canvas"].width; |
| 4307 var ch = Module["canvas"].height; |
| 4308 x = x * (cw / rect.width); |
| 4309 y = y * (ch / rect.height); |
| 4310 |
| 4311 Browser.mouseMovementX = x - Browser.mouseX; |
| 4312 Browser.mouseMovementY = y - Browser.mouseY; |
| 4313 Browser.mouseX = x; |
| 4314 Browser.mouseY = y; |
| 4315 } |
| 4316 },xhrLoad:function (url, onload, onerror) { |
| 4317 var xhr = new XMLHttpRequest(); |
| 4318 xhr.open('GET', url, true); |
| 4319 xhr.responseType = 'arraybuffer'; |
| 4320 xhr.onload = function xhr_onload() { |
| 4321 if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file
URLs can return 0 |
| 4322 onload(xhr.response); |
| 4323 } else { |
| 4324 onerror(); |
| 4325 } |
| 4326 }; |
| 4327 xhr.onerror = onerror; |
| 4328 xhr.send(null); |
| 4329 },asyncLoad:function (url, onload, onerror, noRunDep) { |
| 4330 Browser.xhrLoad(url, function(arrayBuffer) { |
| 4331 assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayB
uffer).'); |
| 4332 onload(new Uint8Array(arrayBuffer)); |
| 4333 if (!noRunDep) removeRunDependency('al ' + url); |
| 4334 }, function(event) { |
| 4335 if (onerror) { |
| 4336 onerror(); |
| 4337 } else { |
| 4338 throw 'Loading data file "' + url + '" failed.'; |
| 4339 } |
| 4340 }); |
| 4341 if (!noRunDep) addRunDependency('al ' + url); |
| 4342 },resizeListeners:[],updateResizeListeners:function () { |
| 4343 var canvas = Module['canvas']; |
| 4344 Browser.resizeListeners.forEach(function(listener) { |
| 4345 listener(canvas.width, canvas.height); |
| 4346 }); |
| 4347 },setCanvasSize:function (width, height, noUpdates) { |
| 4348 var canvas = Module['canvas']; |
| 4349 Browser.updateCanvasDimensions(canvas, width, height); |
| 4350 if (!noUpdates) Browser.updateResizeListeners(); |
| 4351 },windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () { |
| 4352 // check if SDL is available |
| 4353 if (typeof SDL != "undefined") { |
| 4354 var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]; |
| 4355 flags = flags | 0x00800000; // set SDL_FULLSCREEN flag |
| 4356 HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags |
| 4357 } |
| 4358 Browser.updateResizeListeners(); |
| 4359 },setWindowedCanvasSize:function () { |
| 4360 // check if SDL is available |
| 4361 if (typeof SDL != "undefined") { |
| 4362 var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]; |
| 4363 flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag |
| 4364 HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags |
| 4365 } |
| 4366 Browser.updateResizeListeners(); |
| 4367 },updateCanvasDimensions:function (canvas, wNative, hNative) { |
| 4368 if (wNative && hNative) { |
| 4369 canvas.widthNative = wNative; |
| 4370 canvas.heightNative = hNative; |
| 4371 } else { |
| 4372 wNative = canvas.widthNative; |
| 4373 hNative = canvas.heightNative; |
| 4374 } |
| 4375 var w = wNative; |
| 4376 var h = hNative; |
| 4377 if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) { |
| 4378 if (w/h < Module['forcedAspectRatio']) { |
| 4379 w = Math.round(h * Module['forcedAspectRatio']); |
| 4380 } else { |
| 4381 h = Math.round(w / Module['forcedAspectRatio']); |
| 4382 } |
| 4383 } |
| 4384 if (((document['webkitFullScreenElement'] || document['webkitFullscreenE
lement'] || |
| 4385 document['mozFullScreenElement'] || document['mozFullscreenElement'
] || |
| 4386 document['fullScreenElement'] || document['fullscreenElement'] || |
| 4387 document['msFullScreenElement'] || document['msFullscreenElement']
|| |
| 4388 document['webkitCurrentFullScreenElement']) === canvas.parentNode)
&& (typeof screen != 'undefined')) { |
| 4389 var factor = Math.min(screen.width / w, screen.height / h); |
| 4390 w = Math.round(w * factor); |
| 4391 h = Math.round(h * factor); |
| 4392 } |
| 4393 if (Browser.resizeCanvas) { |
| 4394 if (canvas.width != w) canvas.width = w; |
| 4395 if (canvas.height != h) canvas.height = h; |
| 4396 if (typeof canvas.style != 'undefined') { |
| 4397 canvas.style.removeProperty( "width"); |
| 4398 canvas.style.removeProperty("height"); |
| 4399 } |
| 4400 } else { |
| 4401 if (canvas.width != wNative) canvas.width = wNative; |
| 4402 if (canvas.height != hNative) canvas.height = hNative; |
| 4403 if (typeof canvas.style != 'undefined') { |
| 4404 if (w != wNative || h != hNative) { |
| 4405 canvas.style.setProperty( "width", w + "px", "important"); |
| 4406 canvas.style.setProperty("height", h + "px", "important"); |
| 4407 } else { |
| 4408 canvas.style.removeProperty( "width"); |
| 4409 canvas.style.removeProperty("height"); |
| 4410 } |
| 4411 } |
| 4412 } |
| 4413 }}; |
| 4414 |
| 4415 |
| 4416 |
| 4417 |
| 4418 |
| 4419 |
| 4420 |
| 4421 function _mkport() { throw 'TODO' }var SOCKFS={mount:function (mount) { |
| 4422 return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); |
| 4423 },createSocket:function (family, type, protocol) { |
| 4424 var streaming = type == 1; |
| 4425 if (protocol) { |
| 4426 assert(streaming == (protocol == 6)); // if SOCK_STREAM, must be tcp |
| 4427 } |
| 4428 |
| 4429 // create our internal socket structure |
| 4430 var sock = { |
| 4431 family: family, |
| 4432 type: type, |
| 4433 protocol: protocol, |
| 4434 server: null, |
| 4435 peers: {}, |
| 4436 pending: [], |
| 4437 recv_queue: [], |
| 4438 sock_ops: SOCKFS.websocket_sock_ops |
| 4439 }; |
| 4440 |
| 4441 // create the filesystem node to store the socket structure |
| 4442 var name = SOCKFS.nextname(); |
| 4443 var node = FS.createNode(SOCKFS.root, name, 49152, 0); |
| 4444 node.sock = sock; |
| 4445 |
| 4446 // and the wrapping stream that enables library functions such |
| 4447 // as read and write to indirectly interact with the socket |
| 4448 var stream = FS.createStream({ |
| 4449 path: name, |
| 4450 node: node, |
| 4451 flags: FS.modeStringToFlags('r+'), |
| 4452 seekable: false, |
| 4453 stream_ops: SOCKFS.stream_ops |
| 4454 }); |
| 4455 |
| 4456 // map the new stream to the socket structure (sockets have a 1:1 |
| 4457 // relationship with a stream) |
| 4458 sock.stream = stream; |
| 4459 |
| 4460 return sock; |
| 4461 },getSocket:function (fd) { |
| 4462 var stream = FS.getStream(fd); |
| 4463 if (!stream || !FS.isSocket(stream.node.mode)) { |
| 4464 return null; |
| 4465 } |
| 4466 return stream.node.sock; |
| 4467 },stream_ops:{poll:function (stream) { |
| 4468 var sock = stream.node.sock; |
| 4469 return sock.sock_ops.poll(sock); |
| 4470 },ioctl:function (stream, request, varargs) { |
| 4471 var sock = stream.node.sock; |
| 4472 return sock.sock_ops.ioctl(sock, request, varargs); |
| 4473 },read:function (stream, buffer, offset, length, position /* ignored */)
{ |
| 4474 var sock = stream.node.sock; |
| 4475 var msg = sock.sock_ops.recvmsg(sock, length); |
| 4476 if (!msg) { |
| 4477 // socket is closed |
| 4478 return 0; |
| 4479 } |
| 4480 buffer.set(msg.buffer, offset); |
| 4481 return msg.buffer.length; |
| 4482 },write:function (stream, buffer, offset, length, position /* ignored */
) { |
| 4483 var sock = stream.node.sock; |
| 4484 return sock.sock_ops.sendmsg(sock, buffer, offset, length); |
| 4485 },close:function (stream) { |
| 4486 var sock = stream.node.sock; |
| 4487 sock.sock_ops.close(sock); |
| 4488 }},nextname:function () { |
| 4489 if (!SOCKFS.nextname.current) { |
| 4490 SOCKFS.nextname.current = 0; |
| 4491 } |
| 4492 return 'socket[' + (SOCKFS.nextname.current++) + ']'; |
| 4493 },websocket_sock_ops:{createPeer:function (sock, addr, port) { |
| 4494 var ws; |
| 4495 |
| 4496 if (typeof addr === 'object') { |
| 4497 ws = addr; |
| 4498 addr = null; |
| 4499 port = null; |
| 4500 } |
| 4501 |
| 4502 if (ws) { |
| 4503 // for sockets that've already connected (e.g. we're the server) |
| 4504 // we can inspect the _socket property for the address |
| 4505 if (ws._socket) { |
| 4506 addr = ws._socket.remoteAddress; |
| 4507 port = ws._socket.remotePort; |
| 4508 } |
| 4509 // if we're just now initializing a connection to the remote, |
| 4510 // inspect the url property |
| 4511 else { |
| 4512 var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url); |
| 4513 if (!result) { |
| 4514 throw new Error('WebSocket URL must be in the format ws(s)://add
ress:port'); |
| 4515 } |
| 4516 addr = result[1]; |
| 4517 port = parseInt(result[2], 10); |
| 4518 } |
| 4519 } else { |
| 4520 // create the actual websocket object and connect |
| 4521 try { |
| 4522 // runtimeConfig gets set to true if WebSocket runtime configurati
on is available. |
| 4523 var runtimeConfig = (Module['websocket'] && ('object' === typeof M
odule['websocket'])); |
| 4524 |
| 4525 // The default value is 'ws://' the replace is needed because the
compiler replaces "//" comments with '#' |
| 4526 // comments without checking context, so we'd end up with ws:#, th
e replace swaps the "#" for "//" again. |
| 4527 var url = 'ws:#'.replace('#', '//'); |
| 4528 |
| 4529 if (runtimeConfig) { |
| 4530 if ('string' === typeof Module['websocket']['url']) { |
| 4531 url = Module['websocket']['url']; // Fetch runtime WebSocket U
RL config. |
| 4532 } |
| 4533 } |
| 4534 |
| 4535 if (url === 'ws://' || url === 'wss://') { // Is the supplied URL
config just a prefix, if so complete it. |
| 4536 url = url + addr + ':' + port; |
| 4537 } |
| 4538 |
| 4539 // Make the WebSocket subprotocol (Sec-WebSocket-Protocol) default
to binary if no configuration is set. |
| 4540 var subProtocols = 'binary'; // The default value is 'binary' |
| 4541 |
| 4542 if (runtimeConfig) { |
| 4543 if ('string' === typeof Module['websocket']['subprotocol']) { |
| 4544 subProtocols = Module['websocket']['subprotocol']; // Fetch ru
ntime WebSocket subprotocol config. |
| 4545 } |
| 4546 } |
| 4547 |
| 4548 // The regex trims the string (removes spaces at the beginning and
end, then splits the string by |
| 4549 // <any space>,<any space> into an Array. Whitespace removal is im
portant for Websockify and ws. |
| 4550 subProtocols = subProtocols.replace(/^ +| +$/g,"").split(/ *, */); |
| 4551 |
| 4552 // The node ws library API for specifying optional subprotocol is
slightly different than the browser's. |
| 4553 var opts = ENVIRONMENT_IS_NODE ? {'protocol': subProtocols.toStrin
g()} : subProtocols; |
| 4554 |
| 4555 // If node we use the ws library. |
| 4556 var WebSocket = ENVIRONMENT_IS_NODE ? require('ws') : window['WebS
ocket']; |
| 4557 ws = new WebSocket(url, opts); |
| 4558 ws.binaryType = 'arraybuffer'; |
| 4559 } catch (e) { |
| 4560 throw new FS.ErrnoError(ERRNO_CODES.EHOSTUNREACH); |
| 4561 } |
| 4562 } |
| 4563 |
| 4564 |
| 4565 var peer = { |
| 4566 addr: addr, |
| 4567 port: port, |
| 4568 socket: ws, |
| 4569 dgram_send_queue: [] |
| 4570 }; |
| 4571 |
| 4572 SOCKFS.websocket_sock_ops.addPeer(sock, peer); |
| 4573 SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer); |
| 4574 |
| 4575 // if this is a bound dgram socket, send the port number first to allo
w |
| 4576 // us to override the ephemeral port reported to us by remotePort on t
he |
| 4577 // remote end. |
| 4578 if (sock.type === 2 && typeof sock.sport !== 'undefined') { |
| 4579 peer.dgram_send_queue.push(new Uint8Array([ |
| 4580 255, 255, 255, 255, |
| 4581 'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.cha
rCodeAt(0), |
| 4582 ((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff) |
| 4583 ])); |
| 4584 } |
| 4585 |
| 4586 return peer; |
| 4587 },getPeer:function (sock, addr, port) { |
| 4588 return sock.peers[addr + ':' + port]; |
| 4589 },addPeer:function (sock, peer) { |
| 4590 sock.peers[peer.addr + ':' + peer.port] = peer; |
| 4591 },removePeer:function (sock, peer) { |
| 4592 delete sock.peers[peer.addr + ':' + peer.port]; |
| 4593 },handlePeerEvents:function (sock, peer) { |
| 4594 var first = true; |
| 4595 |
| 4596 var handleOpen = function () { |
| 4597 try { |
| 4598 var queued = peer.dgram_send_queue.shift(); |
| 4599 while (queued) { |
| 4600 peer.socket.send(queued); |
| 4601 queued = peer.dgram_send_queue.shift(); |
| 4602 } |
| 4603 } catch (e) { |
| 4604 // not much we can do here in the way of proper error handling as
we've already |
| 4605 // lied and said this data was sent. shut it down. |
| 4606 peer.socket.close(); |
| 4607 } |
| 4608 }; |
| 4609 |
| 4610 function handleMessage(data) { |
| 4611 assert(typeof data !== 'string' && data.byteLength !== undefined);
// must receive an ArrayBuffer |
| 4612 data = new Uint8Array(data); // make a typed array view on the arra
y buffer |
| 4613 |
| 4614 |
| 4615 // if this is the port message, override the peer's port with it |
| 4616 var wasfirst = first; |
| 4617 first = false; |
| 4618 if (wasfirst && |
| 4619 data.length === 10 && |
| 4620 data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3]
=== 255 && |
| 4621 data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) &
& data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) { |
| 4622 // update the peer's port and it's key in the peer map |
| 4623 var newport = ((data[8] << 8) | data[9]); |
| 4624 SOCKFS.websocket_sock_ops.removePeer(sock, peer); |
| 4625 peer.port = newport; |
| 4626 SOCKFS.websocket_sock_ops.addPeer(sock, peer); |
| 4627 return; |
| 4628 } |
| 4629 |
| 4630 sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data
}); |
| 4631 }; |
| 4632 |
| 4633 if (ENVIRONMENT_IS_NODE) { |
| 4634 peer.socket.on('open', handleOpen); |
| 4635 peer.socket.on('message', function(data, flags) { |
| 4636 if (!flags.binary) { |
| 4637 return; |
| 4638 } |
| 4639 handleMessage((new Uint8Array(data)).buffer); // copy from node B
uffer -> ArrayBuffer |
| 4640 }); |
| 4641 peer.socket.on('error', function() { |
| 4642 // don't throw |
| 4643 }); |
| 4644 } else { |
| 4645 peer.socket.onopen = handleOpen; |
| 4646 peer.socket.onmessage = function peer_socket_onmessage(event) { |
| 4647 handleMessage(event.data); |
| 4648 }; |
| 4649 } |
| 4650 },poll:function (sock) { |
| 4651 if (sock.type === 1 && sock.server) { |
| 4652 // listen sockets should only say they're available for reading |
| 4653 // if there are pending clients. |
| 4654 return sock.pending.length ? (64 | 1) : 0; |
| 4655 } |
| 4656 |
| 4657 var mask = 0; |
| 4658 var dest = sock.type === 1 ? // we only care about the socket state f
or connection-based sockets |
| 4659 SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) : |
| 4660 null; |
| 4661 |
| 4662 if (sock.recv_queue.length || |
| 4663 !dest || // connection-less sockets are always ready to read |
| 4664 (dest && dest.socket.readyState === dest.socket.CLOSING) || |
| 4665 (dest && dest.socket.readyState === dest.socket.CLOSED)) { // let
recv return 0 once closed |
| 4666 mask |= (64 | 1); |
| 4667 } |
| 4668 |
| 4669 if (!dest || // connection-less sockets are always ready to write |
| 4670 (dest && dest.socket.readyState === dest.socket.OPEN)) { |
| 4671 mask |= 4; |
| 4672 } |
| 4673 |
| 4674 if ((dest && dest.socket.readyState === dest.socket.CLOSING) || |
| 4675 (dest && dest.socket.readyState === dest.socket.CLOSED)) { |
| 4676 mask |= 16; |
| 4677 } |
| 4678 |
| 4679 return mask; |
| 4680 },ioctl:function (sock, request, arg) { |
| 4681 switch (request) { |
| 4682 case 21531: |
| 4683 var bytes = 0; |
| 4684 if (sock.recv_queue.length) { |
| 4685 bytes = sock.recv_queue[0].data.length; |
| 4686 } |
| 4687 HEAP32[((arg)>>2)]=bytes; |
| 4688 return 0; |
| 4689 default: |
| 4690 return ERRNO_CODES.EINVAL; |
| 4691 } |
| 4692 },close:function (sock) { |
| 4693 // if we've spawned a listen server, close it |
| 4694 if (sock.server) { |
| 4695 try { |
| 4696 sock.server.close(); |
| 4697 } catch (e) { |
| 4698 } |
| 4699 sock.server = null; |
| 4700 } |
| 4701 // close any peer connections |
| 4702 var peers = Object.keys(sock.peers); |
| 4703 for (var i = 0; i < peers.length; i++) { |
| 4704 var peer = sock.peers[peers[i]]; |
| 4705 try { |
| 4706 peer.socket.close(); |
| 4707 } catch (e) { |
| 4708 } |
| 4709 SOCKFS.websocket_sock_ops.removePeer(sock, peer); |
| 4710 } |
| 4711 return 0; |
| 4712 },bind:function (sock, addr, port) { |
| 4713 if (typeof sock.saddr !== 'undefined' || typeof sock.sport !== 'undefi
ned') { |
| 4714 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already bound |
| 4715 } |
| 4716 sock.saddr = addr; |
| 4717 sock.sport = port || _mkport(); |
| 4718 // in order to emulate dgram sockets, we need to launch a listen serve
r when |
| 4719 // binding on a connection-less socket |
| 4720 // note: this is only required on the server side |
| 4721 if (sock.type === 2) { |
| 4722 // close the existing server if it exists |
| 4723 if (sock.server) { |
| 4724 sock.server.close(); |
| 4725 sock.server = null; |
| 4726 } |
| 4727 // swallow error operation not supported error that occurs when bind
ing in the |
| 4728 // browser where this isn't supported |
| 4729 try { |
| 4730 sock.sock_ops.listen(sock, 0); |
| 4731 } catch (e) { |
| 4732 if (!(e instanceof FS.ErrnoError)) throw e; |
| 4733 if (e.errno !== ERRNO_CODES.EOPNOTSUPP) throw e; |
| 4734 } |
| 4735 } |
| 4736 },connect:function (sock, addr, port) { |
| 4737 if (sock.server) { |
| 4738 throw new FS.ErrnoError(ERRNO_CODS.EOPNOTSUPP); |
| 4739 } |
| 4740 |
| 4741 // TODO autobind |
| 4742 // if (!sock.addr && sock.type == 2) { |
| 4743 // } |
| 4744 |
| 4745 // early out if we're already connected / in the middle of connecting |
| 4746 if (typeof sock.daddr !== 'undefined' && typeof sock.dport !== 'undefi
ned') { |
| 4747 var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.
dport); |
| 4748 if (dest) { |
| 4749 if (dest.socket.readyState === dest.socket.CONNECTING) { |
| 4750 throw new FS.ErrnoError(ERRNO_CODES.EALREADY); |
| 4751 } else { |
| 4752 throw new FS.ErrnoError(ERRNO_CODES.EISCONN); |
| 4753 } |
| 4754 } |
| 4755 } |
| 4756 |
| 4757 // add the socket to our peer list and set our |
| 4758 // destination address / port to match |
| 4759 var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port); |
| 4760 sock.daddr = peer.addr; |
| 4761 sock.dport = peer.port; |
| 4762 |
| 4763 // always "fail" in non-blocking mode |
| 4764 throw new FS.ErrnoError(ERRNO_CODES.EINPROGRESS); |
| 4765 },listen:function (sock, backlog) { |
| 4766 if (!ENVIRONMENT_IS_NODE) { |
| 4767 throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP); |
| 4768 } |
| 4769 if (sock.server) { |
| 4770 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already listening |
| 4771 } |
| 4772 var WebSocketServer = require('ws').Server; |
| 4773 var host = sock.saddr; |
| 4774 sock.server = new WebSocketServer({ |
| 4775 host: host, |
| 4776 port: sock.sport |
| 4777 // TODO support backlog |
| 4778 }); |
| 4779 |
| 4780 sock.server.on('connection', function(ws) { |
| 4781 if (sock.type === 1) { |
| 4782 var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.pro
tocol); |
| 4783 |
| 4784 // create a peer on the new socket |
| 4785 var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws); |
| 4786 newsock.daddr = peer.addr; |
| 4787 newsock.dport = peer.port; |
| 4788 |
| 4789 // push to queue for accept to pick up |
| 4790 sock.pending.push(newsock); |
| 4791 } else { |
| 4792 // create a peer on the listen socket so calling sendto |
| 4793 // with the listen socket and an address will resolve |
| 4794 // to the correct client |
| 4795 SOCKFS.websocket_sock_ops.createPeer(sock, ws); |
| 4796 } |
| 4797 }); |
| 4798 sock.server.on('closed', function() { |
| 4799 sock.server = null; |
| 4800 }); |
| 4801 sock.server.on('error', function() { |
| 4802 // don't throw |
| 4803 }); |
| 4804 },accept:function (listensock) { |
| 4805 if (!listensock.server) { |
| 4806 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 4807 } |
| 4808 var newsock = listensock.pending.shift(); |
| 4809 newsock.stream.flags = listensock.stream.flags; |
| 4810 return newsock; |
| 4811 },getname:function (sock, peer) { |
| 4812 var addr, port; |
| 4813 if (peer) { |
| 4814 if (sock.daddr === undefined || sock.dport === undefined) { |
| 4815 throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN); |
| 4816 } |
| 4817 addr = sock.daddr; |
| 4818 port = sock.dport; |
| 4819 } else { |
| 4820 // TODO saddr and sport will be set for bind()'d UDP sockets, but wh
at |
| 4821 // should we be returning for TCP sockets that've been connect()'d? |
| 4822 addr = sock.saddr || 0; |
| 4823 port = sock.sport || 0; |
| 4824 } |
| 4825 return { addr: addr, port: port }; |
| 4826 },sendmsg:function (sock, buffer, offset, length, addr, port) { |
| 4827 if (sock.type === 2) { |
| 4828 // connection-less sockets will honor the message address, |
| 4829 // and otherwise fall back to the bound destination address |
| 4830 if (addr === undefined || port === undefined) { |
| 4831 addr = sock.daddr; |
| 4832 port = sock.dport; |
| 4833 } |
| 4834 // if there was no address to fall back to, error out |
| 4835 if (addr === undefined || port === undefined) { |
| 4836 throw new FS.ErrnoError(ERRNO_CODES.EDESTADDRREQ); |
| 4837 } |
| 4838 } else { |
| 4839 // connection-based sockets will only use the bound |
| 4840 addr = sock.daddr; |
| 4841 port = sock.dport; |
| 4842 } |
| 4843 |
| 4844 // find the peer for the destination address |
| 4845 var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port); |
| 4846 |
| 4847 // early out if not connected with a connection-based socket |
| 4848 if (sock.type === 1) { |
| 4849 if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.
socket.readyState === dest.socket.CLOSED) { |
| 4850 throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN); |
| 4851 } else if (dest.socket.readyState === dest.socket.CONNECTING) { |
| 4852 throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); |
| 4853 } |
| 4854 } |
| 4855 |
| 4856 // create a copy of the incoming data to send, as the WebSocket API |
| 4857 // doesn't work entirely with an ArrayBufferView, it'll just send |
| 4858 // the entire underlying buffer |
| 4859 var data; |
| 4860 if (buffer instanceof Array || buffer instanceof ArrayBuffer) { |
| 4861 data = buffer.slice(offset, offset + length); |
| 4862 } else { // ArrayBufferView |
| 4863 data = buffer.buffer.slice(buffer.byteOffset + offset, buffer.byteOf
fset + offset + length); |
| 4864 } |
| 4865 |
| 4866 // if we're emulating a connection-less dgram socket and don't have |
| 4867 // a cached connection, queue the buffer to send upon connect and |
| 4868 // lie, saying the data was sent now. |
| 4869 if (sock.type === 2) { |
| 4870 if (!dest || dest.socket.readyState !== dest.socket.OPEN) { |
| 4871 // if we're not connected, open a new connection |
| 4872 if (!dest || dest.socket.readyState === dest.socket.CLOSING || des
t.socket.readyState === dest.socket.CLOSED) { |
| 4873 dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port); |
| 4874 } |
| 4875 dest.dgram_send_queue.push(data); |
| 4876 return length; |
| 4877 } |
| 4878 } |
| 4879 |
| 4880 try { |
| 4881 // send the actual data |
| 4882 dest.socket.send(data); |
| 4883 return length; |
| 4884 } catch (e) { |
| 4885 throw new FS.ErrnoError(ERRNO_CODES.EINVAL); |
| 4886 } |
| 4887 },recvmsg:function (sock, length) { |
| 4888 // http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html |
| 4889 if (sock.type === 1 && sock.server) { |
| 4890 // tcp servers should not be recv()'ing on the listen socket |
| 4891 throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN); |
| 4892 } |
| 4893 |
| 4894 var queued = sock.recv_queue.shift(); |
| 4895 if (!queued) { |
| 4896 if (sock.type === 1) { |
| 4897 var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, soc
k.dport); |
| 4898 |
| 4899 if (!dest) { |
| 4900 // if we have a destination address but are not connected, error
out |
| 4901 throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN); |
| 4902 } |
| 4903 else if (dest.socket.readyState === dest.socket.CLOSING || dest.so
cket.readyState === dest.socket.CLOSED) { |
| 4904 // return null if the socket has closed |
| 4905 return null; |
| 4906 } |
| 4907 else { |
| 4908 // else, our socket is in a valid state but truly has nothing av
ailable |
| 4909 throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); |
| 4910 } |
| 4911 } else { |
| 4912 throw new FS.ErrnoError(ERRNO_CODES.EAGAIN); |
| 4913 } |
| 4914 } |
| 4915 |
| 4916 // queued.data will be an ArrayBuffer if it's unadulterated, but if it
's |
| 4917 // requeued TCP data it'll be an ArrayBufferView |
| 4918 var queuedLength = queued.data.byteLength || queued.data.length; |
| 4919 var queuedOffset = queued.data.byteOffset || 0; |
| 4920 var queuedBuffer = queued.data.buffer || queued.data; |
| 4921 var bytesRead = Math.min(length, queuedLength); |
| 4922 var res = { |
| 4923 buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead), |
| 4924 addr: queued.addr, |
| 4925 port: queued.port |
| 4926 }; |
| 4927 |
| 4928 |
| 4929 // push back any unread data for TCP connections |
| 4930 if (sock.type === 1 && bytesRead < queuedLength) { |
| 4931 var bytesRemaining = queuedLength - bytesRead; |
| 4932 queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead,
bytesRemaining); |
| 4933 sock.recv_queue.unshift(queued); |
| 4934 } |
| 4935 |
| 4936 return res; |
| 4937 }}};function _send(fd, buf, len, flags) { |
| 4938 var sock = SOCKFS.getSocket(fd); |
| 4939 if (!sock) { |
| 4940 ___setErrNo(ERRNO_CODES.EBADF); |
| 4941 return -1; |
| 4942 } |
| 4943 // TODO honor flags |
| 4944 return _write(fd, buf, len); |
| 4945 } |
| 4946 |
| 4947 function _pwrite(fildes, buf, nbyte, offset) { |
| 4948 // ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset)
; |
| 4949 // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html |
| 4950 var stream = FS.getStream(fildes); |
| 4951 if (!stream) { |
| 4952 ___setErrNo(ERRNO_CODES.EBADF); |
| 4953 return -1; |
| 4954 } |
| 4955 try { |
| 4956 var slab = HEAP8; |
| 4957 return FS.write(stream, slab, buf, nbyte, offset); |
| 4958 } catch (e) { |
| 4959 FS.handleFSError(e); |
| 4960 return -1; |
| 4961 } |
| 4962 }function _write(fildes, buf, nbyte) { |
| 4963 // ssize_t write(int fildes, const void *buf, size_t nbyte); |
| 4964 // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html |
| 4965 var stream = FS.getStream(fildes); |
| 4966 if (!stream) { |
| 4967 ___setErrNo(ERRNO_CODES.EBADF); |
| 4968 return -1; |
| 4969 } |
| 4970 |
| 4971 |
| 4972 try { |
| 4973 var slab = HEAP8; |
| 4974 return FS.write(stream, slab, buf, nbyte); |
| 4975 } catch (e) { |
| 4976 FS.handleFSError(e); |
| 4977 return -1; |
| 4978 } |
| 4979 } |
| 4980 |
| 4981 function _fileno(stream) { |
| 4982 // int fileno(FILE *stream); |
| 4983 // http://pubs.opengroup.org/onlinepubs/000095399/functions/fileno.html |
| 4984 stream = FS.getStreamFromPtr(stream); |
| 4985 if (!stream) return -1; |
| 4986 return stream.fd; |
| 4987 }function _fwrite(ptr, size, nitems, stream) { |
| 4988 // size_t fwrite(const void *restrict ptr, size_t size, size_t nitems, FIL
E *restrict stream); |
| 4989 // http://pubs.opengroup.org/onlinepubs/000095399/functions/fwrite.html |
| 4990 var bytesToWrite = nitems * size; |
| 4991 if (bytesToWrite == 0) return 0; |
| 4992 var fd = _fileno(stream); |
| 4993 var bytesWritten = _write(fd, ptr, bytesToWrite); |
| 4994 if (bytesWritten == -1) { |
| 4995 var streamObj = FS.getStreamFromPtr(stream); |
| 4996 if (streamObj) streamObj.error = true; |
| 4997 return 0; |
| 4998 } else { |
| 4999 return Math.floor(bytesWritten / size); |
| 5000 } |
| 5001 } |
| 5002 |
| 5003 |
| 5004 |
| 5005 Module["_strlen"] = _strlen; |
| 5006 |
| 5007 function __reallyNegative(x) { |
| 5008 return x < 0 || (x === 0 && (1/x) === -Infinity); |
| 5009 }function __formatString(format, varargs) { |
| 5010 var textIndex = format; |
| 5011 var argIndex = 0; |
| 5012 function getNextArg(type) { |
| 5013 // NOTE: Explicitly ignoring type safety. Otherwise this fails: |
| 5014 // int x = 4; printf("%c\n", (char)x); |
| 5015 var ret; |
| 5016 if (type === 'double') { |
| 5017 ret = HEAPF64[(((varargs)+(argIndex))>>3)]; |
| 5018 } else if (type == 'i64') { |
| 5019 ret = [HEAP32[(((varargs)+(argIndex))>>2)], |
| 5020 HEAP32[(((varargs)+(argIndex+4))>>2)]]; |
| 5021 |
| 5022 } else { |
| 5023 type = 'i32'; // varargs are always i32, i64, or double |
| 5024 ret = HEAP32[(((varargs)+(argIndex))>>2)]; |
| 5025 } |
| 5026 argIndex += Runtime.getNativeFieldSize(type); |
| 5027 return ret; |
| 5028 } |
| 5029 |
| 5030 var ret = []; |
| 5031 var curr, next, currArg; |
| 5032 while(1) { |
| 5033 var startTextIndex = textIndex; |
| 5034 curr = HEAP8[(textIndex)]; |
| 5035 if (curr === 0) break; |
| 5036 next = HEAP8[((textIndex+1)|0)]; |
| 5037 if (curr == 37) { |
| 5038 // Handle flags. |
| 5039 var flagAlwaysSigned = false; |
| 5040 var flagLeftAlign = false; |
| 5041 var flagAlternative = false; |
| 5042 var flagZeroPad = false; |
| 5043 var flagPadSign = false; |
| 5044 flagsLoop: while (1) { |
| 5045 switch (next) { |
| 5046 case 43: |
| 5047 flagAlwaysSigned = true; |
| 5048 break; |
| 5049 case 45: |
| 5050 flagLeftAlign = true; |
| 5051 break; |
| 5052 case 35: |
| 5053 flagAlternative = true; |
| 5054 break; |
| 5055 case 48: |
| 5056 if (flagZeroPad) { |
| 5057 break flagsLoop; |
| 5058 } else { |
| 5059 flagZeroPad = true; |
| 5060 break; |
| 5061 } |
| 5062 case 32: |
| 5063 flagPadSign = true; |
| 5064 break; |
| 5065 default: |
| 5066 break flagsLoop; |
| 5067 } |
| 5068 textIndex++; |
| 5069 next = HEAP8[((textIndex+1)|0)]; |
| 5070 } |
| 5071 |
| 5072 // Handle width. |
| 5073 var width = 0; |
| 5074 if (next == 42) { |
| 5075 width = getNextArg('i32'); |
| 5076 textIndex++; |
| 5077 next = HEAP8[((textIndex+1)|0)]; |
| 5078 } else { |
| 5079 while (next >= 48 && next <= 57) { |
| 5080 width = width * 10 + (next - 48); |
| 5081 textIndex++; |
| 5082 next = HEAP8[((textIndex+1)|0)]; |
| 5083 } |
| 5084 } |
| 5085 |
| 5086 // Handle precision. |
| 5087 var precisionSet = false, precision = -1; |
| 5088 if (next == 46) { |
| 5089 precision = 0; |
| 5090 precisionSet = true; |
| 5091 textIndex++; |
| 5092 next = HEAP8[((textIndex+1)|0)]; |
| 5093 if (next == 42) { |
| 5094 precision = getNextArg('i32'); |
| 5095 textIndex++; |
| 5096 } else { |
| 5097 while(1) { |
| 5098 var precisionChr = HEAP8[((textIndex+1)|0)]; |
| 5099 if (precisionChr < 48 || |
| 5100 precisionChr > 57) break; |
| 5101 precision = precision * 10 + (precisionChr - 48); |
| 5102 textIndex++; |
| 5103 } |
| 5104 } |
| 5105 next = HEAP8[((textIndex+1)|0)]; |
| 5106 } |
| 5107 if (precision < 0) { |
| 5108 precision = 6; // Standard default. |
| 5109 precisionSet = false; |
| 5110 } |
| 5111 |
| 5112 // Handle integer sizes. WARNING: These assume a 32-bit architecture! |
| 5113 var argSize; |
| 5114 switch (String.fromCharCode(next)) { |
| 5115 case 'h': |
| 5116 var nextNext = HEAP8[((textIndex+2)|0)]; |
| 5117 if (nextNext == 104) { |
| 5118 textIndex++; |
| 5119 argSize = 1; // char (actually i32 in varargs) |
| 5120 } else { |
| 5121 argSize = 2; // short (actually i32 in varargs) |
| 5122 } |
| 5123 break; |
| 5124 case 'l': |
| 5125 var nextNext = HEAP8[((textIndex+2)|0)]; |
| 5126 if (nextNext == 108) { |
| 5127 textIndex++; |
| 5128 argSize = 8; // long long |
| 5129 } else { |
| 5130 argSize = 4; // long |
| 5131 } |
| 5132 break; |
| 5133 case 'L': // long long |
| 5134 case 'q': // int64_t |
| 5135 case 'j': // intmax_t |
| 5136 argSize = 8; |
| 5137 break; |
| 5138 case 'z': // size_t |
| 5139 case 't': // ptrdiff_t |
| 5140 case 'I': // signed ptrdiff_t or unsigned size_t |
| 5141 argSize = 4; |
| 5142 break; |
| 5143 default: |
| 5144 argSize = null; |
| 5145 } |
| 5146 if (argSize) textIndex++; |
| 5147 next = HEAP8[((textIndex+1)|0)]; |
| 5148 |
| 5149 // Handle type specifier. |
| 5150 switch (String.fromCharCode(next)) { |
| 5151 case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p'
: { |
| 5152 // Integer. |
| 5153 var signed = next == 100 || next == 105; |
| 5154 argSize = argSize || 4; |
| 5155 var currArg = getNextArg('i' + (argSize * 8)); |
| 5156 var argText; |
| 5157 // Flatten i64-1 [low, high] into a (slightly rounded) double |
| 5158 if (argSize == 8) { |
| 5159 currArg = Runtime.makeBigInt(currArg[0], currArg[1], next == 117
); |
| 5160 } |
| 5161 // Truncate to requested size. |
| 5162 if (argSize <= 4) { |
| 5163 var limit = Math.pow(256, argSize) - 1; |
| 5164 currArg = (signed ? reSign : unSign)(currArg & limit, argSize *
8); |
| 5165 } |
| 5166 // Format the number. |
| 5167 var currAbsArg = Math.abs(currArg); |
| 5168 var prefix = ''; |
| 5169 if (next == 100 || next == 105) { |
| 5170 argText = reSign(currArg, 8 * argSize, 1).toString(10); |
| 5171 } else if (next == 117) { |
| 5172 argText = unSign(currArg, 8 * argSize, 1).toString(10); |
| 5173 currArg = Math.abs(currArg); |
| 5174 } else if (next == 111) { |
| 5175 argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8); |
| 5176 } else if (next == 120 || next == 88) { |
| 5177 prefix = (flagAlternative && currArg != 0) ? '0x' : ''; |
| 5178 if (currArg < 0) { |
| 5179 // Represent negative numbers in hex as 2's complement. |
| 5180 currArg = -currArg; |
| 5181 argText = (currAbsArg - 1).toString(16); |
| 5182 var buffer = []; |
| 5183 for (var i = 0; i < argText.length; i++) { |
| 5184 buffer.push((0xF - parseInt(argText[i], 16)).toString(16)); |
| 5185 } |
| 5186 argText = buffer.join(''); |
| 5187 while (argText.length < argSize * 2) argText = 'f' + argText; |
| 5188 } else { |
| 5189 argText = currAbsArg.toString(16); |
| 5190 } |
| 5191 if (next == 88) { |
| 5192 prefix = prefix.toUpperCase(); |
| 5193 argText = argText.toUpperCase(); |
| 5194 } |
| 5195 } else if (next == 112) { |
| 5196 if (currAbsArg === 0) { |
| 5197 argText = '(nil)'; |
| 5198 } else { |
| 5199 prefix = '0x'; |
| 5200 argText = currAbsArg.toString(16); |
| 5201 } |
| 5202 } |
| 5203 if (precisionSet) { |
| 5204 while (argText.length < precision) { |
| 5205 argText = '0' + argText; |
| 5206 } |
| 5207 } |
| 5208 |
| 5209 // Add sign if needed |
| 5210 if (currArg >= 0) { |
| 5211 if (flagAlwaysSigned) { |
| 5212 prefix = '+' + prefix; |
| 5213 } else if (flagPadSign) { |
| 5214 prefix = ' ' + prefix; |
| 5215 } |
| 5216 } |
| 5217 |
| 5218 // Move sign to prefix so we zero-pad after the sign |
| 5219 if (argText.charAt(0) == '-') { |
| 5220 prefix = '-' + prefix; |
| 5221 argText = argText.substr(1); |
| 5222 } |
| 5223 |
| 5224 // Add padding. |
| 5225 while (prefix.length + argText.length < width) { |
| 5226 if (flagLeftAlign) { |
| 5227 argText += ' '; |
| 5228 } else { |
| 5229 if (flagZeroPad) { |
| 5230 argText = '0' + argText; |
| 5231 } else { |
| 5232 prefix = ' ' + prefix; |
| 5233 } |
| 5234 } |
| 5235 } |
| 5236 |
| 5237 // Insert the result into the buffer. |
| 5238 argText = prefix + argText; |
| 5239 argText.split('').forEach(function(chr) { |
| 5240 ret.push(chr.charCodeAt(0)); |
| 5241 }); |
| 5242 break; |
| 5243 } |
| 5244 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': { |
| 5245 // Float. |
| 5246 var currArg = getNextArg('double'); |
| 5247 var argText; |
| 5248 if (isNaN(currArg)) { |
| 5249 argText = 'nan'; |
| 5250 flagZeroPad = false; |
| 5251 } else if (!isFinite(currArg)) { |
| 5252 argText = (currArg < 0 ? '-' : '') + 'inf'; |
| 5253 flagZeroPad = false; |
| 5254 } else { |
| 5255 var isGeneral = false; |
| 5256 var effectivePrecision = Math.min(precision, 20); |
| 5257 |
| 5258 // Convert g/G to f/F or e/E, as per: |
| 5259 // http://pubs.opengroup.org/onlinepubs/9699919799/functions/pri
ntf.html |
| 5260 if (next == 103 || next == 71) { |
| 5261 isGeneral = true; |
| 5262 precision = precision || 1; |
| 5263 var exponent = parseInt(currArg.toExponential(effectivePrecisi
on).split('e')[1], 10); |
| 5264 if (precision > exponent && exponent >= -4) { |
| 5265 next = ((next == 103) ? 'f' : 'F').charCodeAt(0); |
| 5266 precision -= exponent + 1; |
| 5267 } else { |
| 5268 next = ((next == 103) ? 'e' : 'E').charCodeAt(0); |
| 5269 precision--; |
| 5270 } |
| 5271 effectivePrecision = Math.min(precision, 20); |
| 5272 } |
| 5273 |
| 5274 if (next == 101 || next == 69) { |
| 5275 argText = currArg.toExponential(effectivePrecision); |
| 5276 // Make sure the exponent has at least 2 digits. |
| 5277 if (/[eE][-+]\d$/.test(argText)) { |
| 5278 argText = argText.slice(0, -1) + '0' + argText.slice(-1); |
| 5279 } |
| 5280 } else if (next == 102 || next == 70) { |
| 5281 argText = currArg.toFixed(effectivePrecision); |
| 5282 if (currArg === 0 && __reallyNegative(currArg)) { |
| 5283 argText = '-' + argText; |
| 5284 } |
| 5285 } |
| 5286 |
| 5287 var parts = argText.split('e'); |
| 5288 if (isGeneral && !flagAlternative) { |
| 5289 // Discard trailing zeros and periods. |
| 5290 while (parts[0].length > 1 && parts[0].indexOf('.') != -1 && |
| 5291 (parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.'
)) { |
| 5292 parts[0] = parts[0].slice(0, -1); |
| 5293 } |
| 5294 } else { |
| 5295 // Make sure we have a period in alternative mode. |
| 5296 if (flagAlternative && argText.indexOf('.') == -1) parts[0] +=
'.'; |
| 5297 // Zero pad until required precision. |
| 5298 while (precision > effectivePrecision++) parts[0] += '0'; |
| 5299 } |
| 5300 argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : ''); |
| 5301 |
| 5302 // Capitalize 'E' if needed. |
| 5303 if (next == 69) argText = argText.toUpperCase(); |
| 5304 |
| 5305 // Add sign. |
| 5306 if (currArg >= 0) { |
| 5307 if (flagAlwaysSigned) { |
| 5308 argText = '+' + argText; |
| 5309 } else if (flagPadSign) { |
| 5310 argText = ' ' + argText; |
| 5311 } |
| 5312 } |
| 5313 } |
| 5314 |
| 5315 // Add padding. |
| 5316 while (argText.length < width) { |
| 5317 if (flagLeftAlign) { |
| 5318 argText += ' '; |
| 5319 } else { |
| 5320 if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) { |
| 5321 argText = argText[0] + '0' + argText.slice(1); |
| 5322 } else { |
| 5323 argText = (flagZeroPad ? '0' : ' ') + argText; |
| 5324 } |
| 5325 } |
| 5326 } |
| 5327 |
| 5328 // Adjust case. |
| 5329 if (next < 97) argText = argText.toUpperCase(); |
| 5330 |
| 5331 // Insert the result into the buffer. |
| 5332 argText.split('').forEach(function(chr) { |
| 5333 ret.push(chr.charCodeAt(0)); |
| 5334 }); |
| 5335 break; |
| 5336 } |
| 5337 case 's': { |
| 5338 // String. |
| 5339 var arg = getNextArg('i8*'); |
| 5340 var argLength = arg ? _strlen(arg) : '(null)'.length; |
| 5341 if (precisionSet) argLength = Math.min(argLength, precision); |
| 5342 if (!flagLeftAlign) { |
| 5343 while (argLength < width--) { |
| 5344 ret.push(32); |
| 5345 } |
| 5346 } |
| 5347 if (arg) { |
| 5348 for (var i = 0; i < argLength; i++) { |
| 5349 ret.push(HEAPU8[((arg++)|0)]); |
| 5350 } |
| 5351 } else { |
| 5352 ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength
), true)); |
| 5353 } |
| 5354 if (flagLeftAlign) { |
| 5355 while (argLength < width--) { |
| 5356 ret.push(32); |
| 5357 } |
| 5358 } |
| 5359 break; |
| 5360 } |
| 5361 case 'c': { |
| 5362 // Character. |
| 5363 if (flagLeftAlign) ret.push(getNextArg('i8')); |
| 5364 while (--width > 0) { |
| 5365 ret.push(32); |
| 5366 } |
| 5367 if (!flagLeftAlign) ret.push(getNextArg('i8')); |
| 5368 break; |
| 5369 } |
| 5370 case 'n': { |
| 5371 // Write the length written so far to the next parameter. |
| 5372 var ptr = getNextArg('i32*'); |
| 5373 HEAP32[((ptr)>>2)]=ret.length; |
| 5374 break; |
| 5375 } |
| 5376 case '%': { |
| 5377 // Literal percent sign. |
| 5378 ret.push(curr); |
| 5379 break; |
| 5380 } |
| 5381 default: { |
| 5382 // Unknown specifiers remain untouched. |
| 5383 for (var i = startTextIndex; i < textIndex + 2; i++) { |
| 5384 ret.push(HEAP8[(i)]); |
| 5385 } |
| 5386 } |
| 5387 } |
| 5388 textIndex += 2; |
| 5389 // TODO: Support a/A (hex float) and m (last error) specifiers. |
| 5390 // TODO: Support %1${specifier} for arg selection. |
| 5391 } else { |
| 5392 ret.push(curr); |
| 5393 textIndex += 1; |
| 5394 } |
| 5395 } |
| 5396 return ret; |
| 5397 }function _fprintf(stream, format, varargs) { |
| 5398 // int fprintf(FILE *restrict stream, const char *restrict format, ...); |
| 5399 // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html |
| 5400 var result = __formatString(format, varargs); |
| 5401 var stack = Runtime.stackSave(); |
| 5402 var ret = _fwrite(allocate(result, 'i8', ALLOC_STACK), 1, result.length, s
tream); |
| 5403 Runtime.stackRestore(stack); |
| 5404 return ret; |
| 5405 }function _printf(format, varargs) { |
| 5406 // int printf(const char *restrict format, ...); |
| 5407 // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html |
| 5408 var stdout = HEAP32[((_stdout)>>2)]; |
| 5409 return _fprintf(stdout, format, varargs); |
| 5410 } |
| 5411 |
| 5412 |
| 5413 Module["_memset"] = _memset; |
| 5414 |
| 5415 |
| 5416 |
| 5417 function _emscripten_memcpy_big(dest, src, num) { |
| 5418 HEAPU8.set(HEAPU8.subarray(src, src+num), dest); |
| 5419 return dest; |
| 5420 } |
| 5421 Module["_memcpy"] = _memcpy; |
| 5422 |
| 5423 function _free() { |
| 5424 } |
| 5425 Module["_free"] = _free; |
| 5426 Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, res
izeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) }; |
| 5427 Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func)
{ Browser.requestAnimationFrame(func) }; |
| 5428 Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdat
es) { Browser.setCanvasSize(width, height, noUpdates) }; |
| 5429 Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.p
ause() }; |
| 5430 Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop
.resume() }; |
| 5431 Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia
() } |
| 5432 FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"]
&& !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.
ignorePermissions = false } });__ATEXIT__.push({ func: function() { FS.quit() }
});Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.crea
tePath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloade
dFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile
;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDe
vice; |
| 5433 ___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0; |
| 5434 __ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func:
function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor(); |
| 5435 if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); NODEFS.staticInit(); } |
| 5436 __ATINIT__.push({ func: function() { SOCKFS.root = FS.mount(SOCKFS, {}, null); }
}); |
| 5437 STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP); |
| 5438 |
| 5439 staticSealed = true; // seal the static portion of memory |
| 5440 |
| 5441 STACK_MAX = STACK_BASE + 5242880; |
| 5442 |
| 5443 DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX); |
| 5444 |
| 5445 assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack"); |
| 5446 |
| 5447 |
| 5448 var Math_min = Math.min; |
| 5449 function asmPrintInt(x, y) { |
| 5450 Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack); |
| 5451 } |
| 5452 function asmPrintFloat(x, y) { |
| 5453 Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack); |
| 5454 } |
| 5455 // EMSCRIPTEN_START_ASM |
| 5456 var asm = (function(global, env, buffer) { |
| 5457 'use asm'; |
| 5458 var HEAP8 = new global.Int8Array(buffer); |
| 5459 var HEAP16 = new global.Int16Array(buffer); |
| 5460 var HEAP32 = new global.Int32Array(buffer); |
| 5461 var HEAPU8 = new global.Uint8Array(buffer); |
| 5462 var HEAPU16 = new global.Uint16Array(buffer); |
| 5463 var HEAPU32 = new global.Uint32Array(buffer); |
| 5464 var HEAPF32 = new global.Float32Array(buffer); |
| 5465 var HEAPF64 = new global.Float64Array(buffer); |
| 5466 |
| 5467 var STACKTOP=env.STACKTOP|0; |
| 5468 var STACK_MAX=env.STACK_MAX|0; |
| 5469 var tempDoublePtr=env.tempDoublePtr|0; |
| 5470 var ABORT=env.ABORT|0; |
| 5471 |
| 5472 var __THREW__ = 0; |
| 5473 var threwValue = 0; |
| 5474 var setjmpId = 0; |
| 5475 var undef = 0; |
| 5476 var nan = +env.NaN, inf = +env.Infinity; |
| 5477 var tempInt = 0, tempBigInt = 0, tempBigIntP = 0, tempBigIntS = 0, tempBigIntR
= 0.0, tempBigIntI = 0, tempBigIntD = 0, tempValue = 0, tempDouble = 0.0; |
| 5478 |
| 5479 var tempRet0 = 0; |
| 5480 var tempRet1 = 0; |
| 5481 var tempRet2 = 0; |
| 5482 var tempRet3 = 0; |
| 5483 var tempRet4 = 0; |
| 5484 var tempRet5 = 0; |
| 5485 var tempRet6 = 0; |
| 5486 var tempRet7 = 0; |
| 5487 var tempRet8 = 0; |
| 5488 var tempRet9 = 0; |
| 5489 var Math_floor=global.Math.floor; |
| 5490 var Math_abs=global.Math.abs; |
| 5491 var Math_sqrt=global.Math.sqrt; |
| 5492 var Math_pow=global.Math.pow; |
| 5493 var Math_cos=global.Math.cos; |
| 5494 var Math_sin=global.Math.sin; |
| 5495 var Math_tan=global.Math.tan; |
| 5496 var Math_acos=global.Math.acos; |
| 5497 var Math_asin=global.Math.asin; |
| 5498 var Math_atan=global.Math.atan; |
| 5499 var Math_atan2=global.Math.atan2; |
| 5500 var Math_exp=global.Math.exp; |
| 5501 var Math_log=global.Math.log; |
| 5502 var Math_ceil=global.Math.ceil; |
| 5503 var Math_imul=global.Math.imul; |
| 5504 var abort=env.abort; |
| 5505 var assert=env.assert; |
| 5506 var asmPrintInt=env.asmPrintInt; |
| 5507 var asmPrintFloat=env.asmPrintFloat; |
| 5508 var Math_min=env.min; |
| 5509 var _free=env._free; |
| 5510 var _emscripten_memcpy_big=env._emscripten_memcpy_big; |
| 5511 var _printf=env._printf; |
| 5512 var _send=env._send; |
| 5513 var _pwrite=env._pwrite; |
| 5514 var __reallyNegative=env.__reallyNegative; |
| 5515 var _fwrite=env._fwrite; |
| 5516 var _malloc=env._malloc; |
| 5517 var _mkport=env._mkport; |
| 5518 var _fprintf=env._fprintf; |
| 5519 var ___setErrNo=env.___setErrNo; |
| 5520 var __formatString=env.__formatString; |
| 5521 var _fileno=env._fileno; |
| 5522 var _fflush=env._fflush; |
| 5523 var _write=env._write; |
| 5524 var tempFloat = 0.0; |
| 5525 |
| 5526 // EMSCRIPTEN_START_FUNCS |
| 5527 function _main(i3, i5) { |
| 5528 i3 = i3 | 0; |
| 5529 i5 = i5 | 0; |
| 5530 var i1 = 0, i2 = 0, i4 = 0, i6 = 0, i7 = 0, i8 = 0, i9 = 0, i10 = 0, i11 = 0, i
12 = 0, i13 = 0, i14 = 0, i15 = 0, i16 = 0, i17 = 0, i18 = 0, i19 = 0; |
| 5531 i1 = STACKTOP; |
| 5532 STACKTOP = STACKTOP + 16 | 0; |
| 5533 i2 = i1; |
| 5534 L1 : do { |
| 5535 if ((i3 | 0) > 1) { |
| 5536 i3 = HEAP8[HEAP32[i5 + 4 >> 2] | 0] | 0; |
| 5537 switch (i3 | 0) { |
| 5538 case 50: |
| 5539 { |
| 5540 i3 = 625; |
| 5541 break L1; |
| 5542 } |
| 5543 case 51: |
| 5544 { |
| 5545 i4 = 4; |
| 5546 break L1; |
| 5547 } |
| 5548 case 52: |
| 5549 { |
| 5550 i3 = 6250; |
| 5551 break L1; |
| 5552 } |
| 5553 case 53: |
| 5554 { |
| 5555 i3 = 12500; |
| 5556 break L1; |
| 5557 } |
| 5558 case 49: |
| 5559 { |
| 5560 i3 = 75; |
| 5561 break L1; |
| 5562 } |
| 5563 case 48: |
| 5564 { |
| 5565 i12 = 0; |
| 5566 STACKTOP = i1; |
| 5567 return i12 | 0; |
| 5568 } |
| 5569 default: |
| 5570 { |
| 5571 HEAP32[i2 >> 2] = i3 + -48; |
| 5572 _printf(8, i2 | 0) | 0; |
| 5573 i12 = -1; |
| 5574 STACKTOP = i1; |
| 5575 return i12 | 0; |
| 5576 } |
| 5577 } |
| 5578 } else { |
| 5579 i4 = 4; |
| 5580 } |
| 5581 } while (0); |
| 5582 if ((i4 | 0) == 4) { |
| 5583 i3 = 1250; |
| 5584 } |
| 5585 i4 = 0; |
| 5586 i12 = 0; |
| 5587 do { |
| 5588 i9 = (i4 | 0) % 10 | 0; |
| 5589 i5 = i9 + i4 | 0; |
| 5590 i6 = (i4 | 0) % 255 | 0; |
| 5591 i8 = (i4 | 0) % 15 | 0; |
| 5592 i10 = ((i4 | 0) % 120 | 0 | 0) % 1024 | 0; |
| 5593 i11 = ((i4 | 0) % 1024 | 0) + i4 | 0; |
| 5594 i5 = ((i5 | 0) % 1024 | 0) + i5 | 0; |
| 5595 i8 = ((i8 | 0) % 1024 | 0) + i8 | 0; |
| 5596 i6 = (((i6 | 0) % 1024 | 0) + i6 + i10 | 0) % 1024 | 0; |
| 5597 i7 = 0; |
| 5598 do { |
| 5599 i17 = i7 << 1; |
| 5600 i14 = (i7 | 0) % 120 | 0; |
| 5601 i18 = (i17 | 0) % 1024 | 0; |
| 5602 i19 = (i9 + i7 | 0) % 1024 | 0; |
| 5603 i16 = ((i7 | 0) % 255 | 0 | 0) % 1024 | 0; |
| 5604 i15 = (i7 | 0) % 1024 | 0; |
| 5605 i13 = ((i7 | 0) % 15 | 0 | 0) % 1024 | 0; |
| 5606 i12 = (((i19 + i18 + i16 + i10 + i15 + i13 + ((i11 + i19 | 0) % 1024 | 0) + (
(i5 + i18 | 0) % 1024 | 0) + ((i18 + i17 + i16 | 0) % 1024 | 0) + i6 + ((i8 + i1
5 | 0) % 1024 | 0) + ((((i14 | 0) % 1024 | 0) + i14 + i13 | 0) % 1024 | 0) | 0)
% 100 | 0) + i12 | 0) % 10240 | 0; |
| 5607 i7 = i7 + 1 | 0; |
| 5608 } while ((i7 | 0) != 5e4); |
| 5609 i4 = i4 + 1 | 0; |
| 5610 } while ((i4 | 0) < (i3 | 0)); |
| 5611 HEAP32[i2 >> 2] = i12; |
| 5612 _printf(24, i2 | 0) | 0; |
| 5613 i19 = 0; |
| 5614 STACKTOP = i1; |
| 5615 return i19 | 0; |
| 5616 } |
| 5617 function _memcpy(i3, i2, i1) { |
| 5618 i3 = i3 | 0; |
| 5619 i2 = i2 | 0; |
| 5620 i1 = i1 | 0; |
| 5621 var i4 = 0; |
| 5622 if ((i1 | 0) >= 4096) return _emscripten_memcpy_big(i3 | 0, i2 | 0, i1 | 0) | 0
; |
| 5623 i4 = i3 | 0; |
| 5624 if ((i3 & 3) == (i2 & 3)) { |
| 5625 while (i3 & 3) { |
| 5626 if ((i1 | 0) == 0) return i4 | 0; |
| 5627 HEAP8[i3] = HEAP8[i2] | 0; |
| 5628 i3 = i3 + 1 | 0; |
| 5629 i2 = i2 + 1 | 0; |
| 5630 i1 = i1 - 1 | 0; |
| 5631 } |
| 5632 while ((i1 | 0) >= 4) { |
| 5633 HEAP32[i3 >> 2] = HEAP32[i2 >> 2]; |
| 5634 i3 = i3 + 4 | 0; |
| 5635 i2 = i2 + 4 | 0; |
| 5636 i1 = i1 - 4 | 0; |
| 5637 } |
| 5638 } |
| 5639 while ((i1 | 0) > 0) { |
| 5640 HEAP8[i3] = HEAP8[i2] | 0; |
| 5641 i3 = i3 + 1 | 0; |
| 5642 i2 = i2 + 1 | 0; |
| 5643 i1 = i1 - 1 | 0; |
| 5644 } |
| 5645 return i4 | 0; |
| 5646 } |
| 5647 function _memset(i1, i4, i3) { |
| 5648 i1 = i1 | 0; |
| 5649 i4 = i4 | 0; |
| 5650 i3 = i3 | 0; |
| 5651 var i2 = 0, i5 = 0, i6 = 0, i7 = 0; |
| 5652 i2 = i1 + i3 | 0; |
| 5653 if ((i3 | 0) >= 20) { |
| 5654 i4 = i4 & 255; |
| 5655 i7 = i1 & 3; |
| 5656 i6 = i4 | i4 << 8 | i4 << 16 | i4 << 24; |
| 5657 i5 = i2 & ~3; |
| 5658 if (i7) { |
| 5659 i7 = i1 + 4 - i7 | 0; |
| 5660 while ((i1 | 0) < (i7 | 0)) { |
| 5661 HEAP8[i1] = i4; |
| 5662 i1 = i1 + 1 | 0; |
| 5663 } |
| 5664 } |
| 5665 while ((i1 | 0) < (i5 | 0)) { |
| 5666 HEAP32[i1 >> 2] = i6; |
| 5667 i1 = i1 + 4 | 0; |
| 5668 } |
| 5669 } |
| 5670 while ((i1 | 0) < (i2 | 0)) { |
| 5671 HEAP8[i1] = i4; |
| 5672 i1 = i1 + 1 | 0; |
| 5673 } |
| 5674 return i1 - i3 | 0; |
| 5675 } |
| 5676 function copyTempDouble(i1) { |
| 5677 i1 = i1 | 0; |
| 5678 HEAP8[tempDoublePtr] = HEAP8[i1]; |
| 5679 HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0]; |
| 5680 HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0]; |
| 5681 HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0]; |
| 5682 HEAP8[tempDoublePtr + 4 | 0] = HEAP8[i1 + 4 | 0]; |
| 5683 HEAP8[tempDoublePtr + 5 | 0] = HEAP8[i1 + 5 | 0]; |
| 5684 HEAP8[tempDoublePtr + 6 | 0] = HEAP8[i1 + 6 | 0]; |
| 5685 HEAP8[tempDoublePtr + 7 | 0] = HEAP8[i1 + 7 | 0]; |
| 5686 } |
| 5687 function copyTempFloat(i1) { |
| 5688 i1 = i1 | 0; |
| 5689 HEAP8[tempDoublePtr] = HEAP8[i1]; |
| 5690 HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0]; |
| 5691 HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0]; |
| 5692 HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0]; |
| 5693 } |
| 5694 function runPostSets() {} |
| 5695 function _strlen(i1) { |
| 5696 i1 = i1 | 0; |
| 5697 var i2 = 0; |
| 5698 i2 = i1; |
| 5699 while (HEAP8[i2] | 0) { |
| 5700 i2 = i2 + 1 | 0; |
| 5701 } |
| 5702 return i2 - i1 | 0; |
| 5703 } |
| 5704 function stackAlloc(i1) { |
| 5705 i1 = i1 | 0; |
| 5706 var i2 = 0; |
| 5707 i2 = STACKTOP; |
| 5708 STACKTOP = STACKTOP + i1 | 0; |
| 5709 STACKTOP = STACKTOP + 7 & -8; |
| 5710 return i2 | 0; |
| 5711 } |
| 5712 function setThrew(i1, i2) { |
| 5713 i1 = i1 | 0; |
| 5714 i2 = i2 | 0; |
| 5715 if ((__THREW__ | 0) == 0) { |
| 5716 __THREW__ = i1; |
| 5717 threwValue = i2; |
| 5718 } |
| 5719 } |
| 5720 function stackRestore(i1) { |
| 5721 i1 = i1 | 0; |
| 5722 STACKTOP = i1; |
| 5723 } |
| 5724 function setTempRet9(i1) { |
| 5725 i1 = i1 | 0; |
| 5726 tempRet9 = i1; |
| 5727 } |
| 5728 function setTempRet8(i1) { |
| 5729 i1 = i1 | 0; |
| 5730 tempRet8 = i1; |
| 5731 } |
| 5732 function setTempRet7(i1) { |
| 5733 i1 = i1 | 0; |
| 5734 tempRet7 = i1; |
| 5735 } |
| 5736 function setTempRet6(i1) { |
| 5737 i1 = i1 | 0; |
| 5738 tempRet6 = i1; |
| 5739 } |
| 5740 function setTempRet5(i1) { |
| 5741 i1 = i1 | 0; |
| 5742 tempRet5 = i1; |
| 5743 } |
| 5744 function setTempRet4(i1) { |
| 5745 i1 = i1 | 0; |
| 5746 tempRet4 = i1; |
| 5747 } |
| 5748 function setTempRet3(i1) { |
| 5749 i1 = i1 | 0; |
| 5750 tempRet3 = i1; |
| 5751 } |
| 5752 function setTempRet2(i1) { |
| 5753 i1 = i1 | 0; |
| 5754 tempRet2 = i1; |
| 5755 } |
| 5756 function setTempRet1(i1) { |
| 5757 i1 = i1 | 0; |
| 5758 tempRet1 = i1; |
| 5759 } |
| 5760 function setTempRet0(i1) { |
| 5761 i1 = i1 | 0; |
| 5762 tempRet0 = i1; |
| 5763 } |
| 5764 function stackSave() { |
| 5765 return STACKTOP | 0; |
| 5766 } |
| 5767 |
| 5768 // EMSCRIPTEN_END_FUNCS |
| 5769 |
| 5770 |
| 5771 return { _strlen: _strlen, _memcpy: _memcpy, _main: _main, _memset: _memset, r
unPostSets: runPostSets, stackAlloc: stackAlloc, stackSave: stackSave, stackRest
ore: stackRestore, setThrew: setThrew, setTempRet0: setTempRet0, setTempRet1: se
tTempRet1, setTempRet2: setTempRet2, setTempRet3: setTempRet3, setTempRet4: setT
empRet4, setTempRet5: setTempRet5, setTempRet6: setTempRet6, setTempRet7: setTem
pRet7, setTempRet8: setTempRet8, setTempRet9: setTempRet9 }; |
| 5772 }) |
| 5773 // EMSCRIPTEN_END_ASM |
| 5774 ({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array":
Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array"
: Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "
abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": as
mPrintFloat, "min": Math_min, "_free": _free, "_emscripten_memcpy_big": _emscrip
ten_memcpy_big, "_printf": _printf, "_send": _send, "_pwrite": _pwrite, "__reall
yNegative": __reallyNegative, "_fwrite": _fwrite, "_malloc": _malloc, "_mkport":
_mkport, "_fprintf": _fprintf, "___setErrNo": ___setErrNo, "__formatString": __
formatString, "_fileno": _fileno, "_fflush": _fflush, "_write": _write, "STACKTO
P": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": A
BORT, "NaN": NaN, "Infinity": Infinity }, buffer); |
| 5775 var _strlen = Module["_strlen"] = asm["_strlen"]; |
| 5776 var _memcpy = Module["_memcpy"] = asm["_memcpy"]; |
| 5777 var _main = Module["_main"] = asm["_main"]; |
| 5778 var _memset = Module["_memset"] = asm["_memset"]; |
| 5779 var runPostSets = Module["runPostSets"] = asm["runPostSets"]; |
| 5780 |
| 5781 Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) }; |
| 5782 Runtime.stackSave = function() { return asm['stackSave']() }; |
| 5783 Runtime.stackRestore = function(top) { asm['stackRestore'](top) }; |
| 5784 |
| 5785 |
| 5786 // Warning: printing of i64 values may be slightly rounded! No deep i64 math use
d, so precise i64 code not included |
| 5787 var i64Math = null; |
| 5788 |
| 5789 // === Auto-generated postamble setup entry stuff === |
| 5790 |
| 5791 if (memoryInitializer) { |
| 5792 if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) { |
| 5793 var data = Module['readBinary'](memoryInitializer); |
| 5794 HEAPU8.set(data, STATIC_BASE); |
| 5795 } else { |
| 5796 addRunDependency('memory initializer'); |
| 5797 Browser.asyncLoad(memoryInitializer, function(data) { |
| 5798 HEAPU8.set(data, STATIC_BASE); |
| 5799 removeRunDependency('memory initializer'); |
| 5800 }, function(data) { |
| 5801 throw 'could not load memory initializer ' + memoryInitializer; |
| 5802 }); |
| 5803 } |
| 5804 } |
| 5805 |
| 5806 function ExitStatus(status) { |
| 5807 this.name = "ExitStatus"; |
| 5808 this.message = "Program terminated with exit(" + status + ")"; |
| 5809 this.status = status; |
| 5810 }; |
| 5811 ExitStatus.prototype = new Error(); |
| 5812 ExitStatus.prototype.constructor = ExitStatus; |
| 5813 |
| 5814 var initialStackTop; |
| 5815 var preloadStartTime = null; |
| 5816 var calledMain = false; |
| 5817 |
| 5818 dependenciesFulfilled = function runCaller() { |
| 5819 // If run has never been called, and we should call run (INVOKE_RUN is true, a
nd Module.noInitialRun is not false) |
| 5820 if (!Module['calledRun'] && shouldRunNow) run([].concat(Module["arguments"])); |
| 5821 if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again
later, after new deps are fulfilled |
| 5822 } |
| 5823 |
| 5824 Module['callMain'] = Module.callMain = function callMain(args) { |
| 5825 assert(runDependencies == 0, 'cannot call main when async dependencies remain!
(listen on __ATMAIN__)'); |
| 5826 assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remai
n to be called'); |
| 5827 |
| 5828 args = args || []; |
| 5829 |
| 5830 ensureInitRuntime(); |
| 5831 |
| 5832 var argc = args.length+1; |
| 5833 function pad() { |
| 5834 for (var i = 0; i < 4-1; i++) { |
| 5835 argv.push(0); |
| 5836 } |
| 5837 } |
| 5838 var argv = [allocate(intArrayFromString("/bin/this.program"), 'i8', ALLOC_NORM
AL) ]; |
| 5839 pad(); |
| 5840 for (var i = 0; i < argc-1; i = i + 1) { |
| 5841 argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL)); |
| 5842 pad(); |
| 5843 } |
| 5844 argv.push(0); |
| 5845 argv = allocate(argv, 'i32', ALLOC_NORMAL); |
| 5846 |
| 5847 initialStackTop = STACKTOP; |
| 5848 |
| 5849 try { |
| 5850 |
| 5851 var ret = Module['_main'](argc, argv, 0); |
| 5852 |
| 5853 |
| 5854 // if we're not running an evented main loop, it's time to exit |
| 5855 if (!Module['noExitRuntime']) { |
| 5856 exit(ret); |
| 5857 } |
| 5858 } |
| 5859 catch(e) { |
| 5860 if (e instanceof ExitStatus) { |
| 5861 // exit() throws this once it's done to make sure execution |
| 5862 // has been stopped completely |
| 5863 return; |
| 5864 } else if (e == 'SimulateInfiniteLoop') { |
| 5865 // running an evented main loop, don't immediately exit |
| 5866 Module['noExitRuntime'] = true; |
| 5867 return; |
| 5868 } else { |
| 5869 if (e && typeof e === 'object' && e.stack) Module.printErr('exception thro
wn: ' + [e, e.stack]); |
| 5870 throw e; |
| 5871 } |
| 5872 } finally { |
| 5873 calledMain = true; |
| 5874 } |
| 5875 } |
| 5876 |
| 5877 |
| 5878 |
| 5879 |
| 5880 function run(args) { |
| 5881 args = args || Module['arguments']; |
| 5882 |
| 5883 if (preloadStartTime === null) preloadStartTime = Date.now(); |
| 5884 |
| 5885 if (runDependencies > 0) { |
| 5886 Module.printErr('run() called, but dependencies remain, so not running'); |
| 5887 return; |
| 5888 } |
| 5889 |
| 5890 preRun(); |
| 5891 |
| 5892 if (runDependencies > 0) return; // a preRun added a dependency, run will be c
alled later |
| 5893 if (Module['calledRun']) return; // run may have just been called through depe
ndencies being fulfilled just in this very frame |
| 5894 |
| 5895 function doRun() { |
| 5896 if (Module['calledRun']) return; // run may have just been called while the
async setStatus time below was happening |
| 5897 Module['calledRun'] = true; |
| 5898 |
| 5899 ensureInitRuntime(); |
| 5900 |
| 5901 preMain(); |
| 5902 |
| 5903 if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) { |
| 5904 Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) +
' ms'); |
| 5905 } |
| 5906 |
| 5907 if (Module['_main'] && shouldRunNow) { |
| 5908 Module['callMain'](args); |
| 5909 } |
| 5910 |
| 5911 postRun(); |
| 5912 } |
| 5913 |
| 5914 if (Module['setStatus']) { |
| 5915 Module['setStatus']('Running...'); |
| 5916 setTimeout(function() { |
| 5917 setTimeout(function() { |
| 5918 Module['setStatus'](''); |
| 5919 }, 1); |
| 5920 if (!ABORT) doRun(); |
| 5921 }, 1); |
| 5922 } else { |
| 5923 doRun(); |
| 5924 } |
| 5925 } |
| 5926 Module['run'] = Module.run = run; |
| 5927 |
| 5928 function exit(status) { |
| 5929 ABORT = true; |
| 5930 EXITSTATUS = status; |
| 5931 STACKTOP = initialStackTop; |
| 5932 |
| 5933 // exit the runtime |
| 5934 exitRuntime(); |
| 5935 |
| 5936 // TODO We should handle this differently based on environment. |
| 5937 // In the browser, the best we can do is throw an exception |
| 5938 // to halt execution, but in node we could process.exit and |
| 5939 // I'd imagine SM shell would have something equivalent. |
| 5940 // This would let us set a proper exit status (which |
| 5941 // would be great for checking test exit statuses). |
| 5942 // https://github.com/kripken/emscripten/issues/1371 |
| 5943 |
| 5944 // throw an exception to halt the current execution |
| 5945 throw new ExitStatus(status); |
| 5946 } |
| 5947 Module['exit'] = Module.exit = exit; |
| 5948 |
| 5949 function abort(text) { |
| 5950 if (text) { |
| 5951 Module.print(text); |
| 5952 Module.printErr(text); |
| 5953 } |
| 5954 |
| 5955 ABORT = true; |
| 5956 EXITSTATUS = 1; |
| 5957 |
| 5958 var extra = '\nIf this abort() is unexpected, build with -s ASSERTIONS=1 which
can give more information.'; |
| 5959 |
| 5960 throw 'abort() at ' + stackTrace() + extra; |
| 5961 } |
| 5962 Module['abort'] = Module.abort = abort; |
| 5963 |
| 5964 // {{PRE_RUN_ADDITIONS}} |
| 5965 |
| 5966 if (Module['preInit']) { |
| 5967 if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preIn
it']]; |
| 5968 while (Module['preInit'].length > 0) { |
| 5969 Module['preInit'].pop()(); |
| 5970 } |
| 5971 } |
| 5972 |
| 5973 // shouldRunNow refers to calling main(), not run(). |
| 5974 var shouldRunNow = true; |
| 5975 if (Module['noInitialRun']) { |
| 5976 shouldRunNow = false; |
| 5977 } |
| 5978 |
| 5979 |
| 5980 run([].concat(Module["arguments"])); |
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