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| 1 // Copyright (c) 2012 The Chromium 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 #include "ppapi/tests/test_file_mapping.h" |
| 6 |
| 7 #include <string.h> |
| 8 |
| 9 #include <limits> |
| 10 #include <string> |
| 11 |
| 12 #include "ppapi/c/pp_errors.h" |
| 13 #include "ppapi/c/ppb_file_io.h" |
| 14 #include "ppapi/c/ppb_file_mapping.h" |
| 15 #include "ppapi/cpp/file_io.h" |
| 16 #include "ppapi/cpp/file_ref.h" |
| 17 #include "ppapi/cpp/file_system.h" |
| 18 #include "ppapi/cpp/instance.h" |
| 19 #include "ppapi/cpp/module.h" |
| 20 #include "ppapi/tests/test_utils.h" |
| 21 |
| 22 REGISTER_TEST_CASE(FileMapping); |
| 23 |
| 24 namespace { |
| 25 |
| 26 // TODO(dmichael): Move these to test_utils so we can share them? |
| 27 int32_t ReadEntireFile(PP_Instance instance, |
| 28 pp::FileIO* file_io, |
| 29 int32_t offset, |
| 30 std::string* data, |
| 31 CallbackType callback_type) { |
| 32 TestCompletionCallback callback(instance, callback_type); |
| 33 char buf[256]; |
| 34 int32_t read_offset = offset; |
| 35 |
| 36 for (;;) { |
| 37 callback.WaitForResult( |
| 38 file_io->Read(read_offset, buf, sizeof(buf), callback.GetCallback())); |
| 39 if (callback.result() < 0) |
| 40 return callback.result(); |
| 41 if (callback.result() == 0) |
| 42 break; |
| 43 read_offset += callback.result(); |
| 44 data->append(buf, callback.result()); |
| 45 } |
| 46 |
| 47 return PP_OK; |
| 48 } |
| 49 |
| 50 int32_t WriteEntireBuffer(PP_Instance instance, |
| 51 pp::FileIO* file_io, |
| 52 int32_t offset, |
| 53 const std::string& data, |
| 54 CallbackType callback_type) { |
| 55 TestCompletionCallback callback(instance, callback_type); |
| 56 int32_t write_offset = offset; |
| 57 const char* buf = data.c_str(); |
| 58 int32_t size = data.size(); |
| 59 |
| 60 while (write_offset < offset + size) { |
| 61 callback.WaitForResult(file_io->Write(write_offset, |
| 62 &buf[write_offset - offset], |
| 63 size - write_offset + offset, |
| 64 callback.GetCallback())); |
| 65 if (callback.result() < 0) |
| 66 return callback.result(); |
| 67 if (callback.result() == 0) |
| 68 return PP_ERROR_FAILED; |
| 69 write_offset += callback.result(); |
| 70 } |
| 71 callback.WaitForResult(file_io->Flush(callback.GetCallback())); |
| 72 return callback.result(); |
| 73 } |
| 74 |
| 75 } // namespace |
| 76 |
| 77 std::string TestFileMapping::MapAndCheckResults(uint32_t prot, |
| 78 uint32_t flags) { |
| 79 TestCompletionCallback callback(instance_->pp_instance(), callback_type()); |
| 80 |
| 81 pp::FileSystem file_system(instance_, PP_FILESYSTEMTYPE_LOCALTEMPORARY); |
| 82 pp::FileRef file_ref(file_system, "/mapped_file"); |
| 83 |
| 84 callback.WaitForResult(file_system.Open(1024, callback.GetCallback())); |
| 85 ASSERT_EQ(PP_OK, callback.result()); |
| 86 |
| 87 const int64_t page_size = |
| 88 file_mapping_if_->GetMapPageSize(instance_->pp_instance()); |
| 89 const int64_t kNumPages = 4; |
| 90 // Make a string that's big enough that it spans all of the first |n-1| pages, |
| 91 // plus a little bit of the |nth| page. |
| 92 std::string file_contents((page_size * (kNumPages - 1)) + 128, 'a'); |
| 93 |
| 94 pp::FileIO file_io(instance_); |
| 95 callback.WaitForResult(file_io.Open(file_ref, |
| 96 PP_FILEOPENFLAG_CREATE | |
| 97 PP_FILEOPENFLAG_TRUNCATE | |
| 98 PP_FILEOPENFLAG_READ | |
| 99 PP_FILEOPENFLAG_WRITE, |
| 100 callback.GetCallback())); |
| 101 ASSERT_EQ(PP_OK, callback.result()); |
| 102 ASSERT_EQ(PP_OK, WriteEntireBuffer(instance_->pp_instance(), |
| 103 &file_io, |
| 104 0, |
| 105 file_contents, |
| 106 callback_type())); |
| 107 |
| 108 // TODO(dmichael): Use C++ interface. |
| 109 void* address = NULL; |
| 110 callback.WaitForResult( |
| 111 file_mapping_if_->Map( |
| 112 instance_->pp_instance(), |
| 113 file_io.pp_resource(), |
| 114 kNumPages * page_size, |
| 115 prot, |
| 116 flags, |
| 117 0, |
| 118 &address, |
| 119 callback.GetCallback().pp_completion_callback())); |
| 120 CHECK_CALLBACK_BEHAVIOR(callback); |
| 121 ASSERT_EQ(PP_OK, callback.result()); |
| 122 ASSERT_NE(NULL, address); |
| 123 |
| 124 if (prot & PP_FILEMAPPROTECTION_READ) { |
| 125 // Make sure we can read. |
| 126 std::string mapped_data(static_cast<char*>(address), file_contents.size()); |
| 127 // The initial data should match. |
| 128 ASSERT_EQ(file_contents, mapped_data); |
| 129 |
| 130 // Now write some data and flush it. |
| 131 const std::string file_contents2(file_contents.size(), 'x'); |
| 132 ASSERT_EQ(PP_OK, WriteEntireBuffer(instance_->pp_instance(), |
| 133 &file_io, |
| 134 0, |
| 135 file_contents2, |
| 136 callback_type())); |
| 137 // If the region was mapped SHARED, it should get updated. |
| 138 std::string mapped_data2(static_cast<char*>(address), file_contents.size()); |
| 139 if (flags & PP_FILEMAPFLAG_SHARED) |
| 140 ASSERT_EQ(file_contents2, mapped_data2); |
| 141 // In POSIX, it is unspecified in the PRIVATE case whether changes to the |
| 142 // file are visible to the mapped region. So we can't really test anything |
| 143 // here in that case. |
| 144 // TODO(dmichael): Make sure our Pepper documentation reflects this. |
| 145 } |
| 146 if (prot & PP_FILEMAPPROTECTION_WRITE) { |
| 147 std::string old_file_contents; |
| 148 ASSERT_EQ(PP_OK, ReadEntireFile(instance_->pp_instance(), |
| 149 &file_io, |
| 150 0, |
| 151 &old_file_contents, |
| 152 callback_type())); |
| 153 // Write something else to the mapped region, then unmap, and see if it |
| 154 // gets written to the file. (Note we have to Unmap to make sure that the |
| 155 // write is committed). |
| 156 memset(address, 'y', file_contents.size()); |
| 157 // Note, we might not have read access to the mapped region here, so we |
| 158 // make a string with the same contents without actually reading. |
| 159 std::string mapped_data3(file_contents.size(), 'y'); |
| 160 callback.WaitForResult( |
| 161 file_mapping_if_->Unmap( |
| 162 instance_->pp_instance(), address, file_contents.size(), |
| 163 callback.GetCallback().pp_completion_callback())); |
| 164 CHECK_CALLBACK_BEHAVIOR(callback); |
| 165 ASSERT_EQ(PP_OK, callback.result()); |
| 166 std::string new_file_contents; |
| 167 ASSERT_EQ(PP_OK, ReadEntireFile(instance_->pp_instance(), |
| 168 &file_io, |
| 169 0, |
| 170 &new_file_contents, |
| 171 callback_type())); |
| 172 |
| 173 // Sanity-check that the data we wrote isn't the same as what was already |
| 174 // there, otherwise our test is invalid. |
| 175 ASSERT_NE(mapped_data3, old_file_contents); |
| 176 // If it's SHARED, the file should match what we wrote to the mapped region. |
| 177 // Otherwise, it should not have changed. |
| 178 if (flags & PP_FILEMAPFLAG_SHARED) |
| 179 ASSERT_EQ(mapped_data3, new_file_contents); |
| 180 else |
| 181 ASSERT_EQ(old_file_contents, new_file_contents); |
| 182 } else { |
| 183 // We didn't do the "WRITE" test, but we still want to Unmap. |
| 184 callback.WaitForResult( |
| 185 file_mapping_if_->Unmap( |
| 186 instance_->pp_instance(), address, file_contents.size(), |
| 187 callback.GetCallback().pp_completion_callback())); |
| 188 CHECK_CALLBACK_BEHAVIOR(callback); |
| 189 ASSERT_EQ(PP_OK, callback.result()); |
| 190 } |
| 191 PASS(); |
| 192 } |
| 193 |
| 194 bool TestFileMapping::Init() { |
| 195 // TODO(dmichael): Use unversioned string when this goes to stable? |
| 196 file_mapping_if_ = static_cast<const PPB_FileMapping_0_1*>( |
| 197 pp::Module::Get()->GetBrowserInterface(PPB_FILEMAPPING_INTERFACE_0_1)); |
| 198 return !!file_mapping_if_ && CheckTestingInterface() && |
| 199 EnsureRunningOverHTTP(); |
| 200 } |
| 201 |
| 202 void TestFileMapping::RunTests(const std::string& filter) { |
| 203 RUN_CALLBACK_TEST(TestFileMapping, BadParameters, filter); |
| 204 RUN_CALLBACK_TEST(TestFileMapping, Map, filter); |
| 205 RUN_CALLBACK_TEST(TestFileMapping, PartialRegions, filter); |
| 206 } |
| 207 |
| 208 std::string TestFileMapping::TestBadParameters() { |
| 209 TestCompletionCallback callback(instance_->pp_instance(), callback_type()); |
| 210 |
| 211 pp::FileSystem file_system(instance_, PP_FILESYSTEMTYPE_LOCALTEMPORARY); |
| 212 pp::FileRef file_ref(file_system, "/mapped_file"); |
| 213 |
| 214 callback.WaitForResult(file_system.Open(1024, callback.GetCallback())); |
| 215 ASSERT_EQ(PP_OK, callback.result()); |
| 216 |
| 217 const int64_t page_size = |
| 218 file_mapping_if_->GetMapPageSize(instance_->pp_instance()); |
| 219 // const int64_t kNumPages = 4; |
| 220 // Make a string that's big enough that it spans 3 pages, plus a little extra. |
| 221 //std::string file_contents((page_size * (kNumPages - 1)) + 128, 'a'); |
| 222 std::string file_contents(page_size, 'a'); |
| 223 |
| 224 pp::FileIO file_io(instance_); |
| 225 callback.WaitForResult(file_io.Open(file_ref, |
| 226 PP_FILEOPENFLAG_CREATE | |
| 227 PP_FILEOPENFLAG_TRUNCATE | |
| 228 PP_FILEOPENFLAG_READ | |
| 229 PP_FILEOPENFLAG_WRITE, |
| 230 callback.GetCallback())); |
| 231 ASSERT_EQ(PP_OK, callback.result()); |
| 232 ASSERT_EQ(PP_OK, WriteEntireBuffer(instance_->pp_instance(), |
| 233 &file_io, |
| 234 0, |
| 235 file_contents, |
| 236 callback_type())); |
| 237 |
| 238 // Bad instance. |
| 239 void* address = NULL; |
| 240 callback.WaitForResult( |
| 241 file_mapping_if_->Map( |
| 242 PP_Instance(0xbadbad), |
| 243 file_io.pp_resource(), |
| 244 page_size, |
| 245 PP_FILEMAPPROTECTION_READ, |
| 246 PP_FILEMAPFLAG_PRIVATE, |
| 247 0, |
| 248 &address, |
| 249 callback.GetCallback().pp_completion_callback())); |
| 250 CHECK_CALLBACK_BEHAVIOR(callback); |
| 251 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 252 ASSERT_EQ(NULL, address); |
| 253 |
| 254 // Bad resource. |
| 255 callback.WaitForResult( |
| 256 file_mapping_if_->Map( |
| 257 instance_->pp_instance(), |
| 258 PP_Resource(0xbadbad), |
| 259 page_size, |
| 260 PP_FILEMAPPROTECTION_READ, |
| 261 PP_FILEMAPFLAG_PRIVATE, |
| 262 0, |
| 263 &address, |
| 264 callback.GetCallback().pp_completion_callback())); |
| 265 CHECK_CALLBACK_BEHAVIOR(callback); |
| 266 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 267 ASSERT_EQ(NULL, address); |
| 268 |
| 269 // Length too big. |
| 270 callback.WaitForResult( |
| 271 file_mapping_if_->Map( |
| 272 instance_->pp_instance(), |
| 273 file_io.pp_resource(), |
| 274 std::numeric_limits<int64_t>::max(), |
| 275 PP_FILEMAPPROTECTION_READ, |
| 276 PP_FILEMAPFLAG_PRIVATE, |
| 277 0, |
| 278 &address, |
| 279 callback.GetCallback().pp_completion_callback())); |
| 280 CHECK_CALLBACK_BEHAVIOR(callback); |
| 281 ASSERT_EQ(PP_ERROR_NOMEMORY, callback.result()); |
| 282 ASSERT_EQ(NULL, address); |
| 283 |
| 284 // Length too small. |
| 285 callback.WaitForResult( |
| 286 file_mapping_if_->Map( |
| 287 instance_->pp_instance(), |
| 288 file_io.pp_resource(), |
| 289 -1, |
| 290 PP_FILEMAPPROTECTION_READ, |
| 291 PP_FILEMAPFLAG_PRIVATE, |
| 292 0, |
| 293 &address, |
| 294 callback.GetCallback().pp_completion_callback())); |
| 295 CHECK_CALLBACK_BEHAVIOR(callback); |
| 296 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 297 ASSERT_EQ(NULL, address); |
| 298 // TODO(dmichael): Check & test length that is not a multiple of page size??? |
| 299 |
| 300 // Bad protection. |
| 301 callback.WaitForResult( |
| 302 file_mapping_if_->Map( |
| 303 instance_->pp_instance(), |
| 304 file_io.pp_resource(), |
| 305 page_size, |
| 306 ~PP_FILEMAPPROTECTION_READ, |
| 307 PP_FILEMAPFLAG_PRIVATE, |
| 308 0, |
| 309 &address, |
| 310 callback.GetCallback().pp_completion_callback())); |
| 311 CHECK_CALLBACK_BEHAVIOR(callback); |
| 312 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 313 ASSERT_EQ(NULL, address); |
| 314 |
| 315 // No flags. |
| 316 callback.WaitForResult( |
| 317 file_mapping_if_->Map( |
| 318 instance_->pp_instance(), |
| 319 file_io.pp_resource(), |
| 320 page_size, |
| 321 PP_FILEMAPPROTECTION_READ, |
| 322 0, |
| 323 0, |
| 324 &address, |
| 325 callback.GetCallback().pp_completion_callback())); |
| 326 CHECK_CALLBACK_BEHAVIOR(callback); |
| 327 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 328 ASSERT_EQ(NULL, address); |
| 329 |
| 330 // Both flags. |
| 331 callback.WaitForResult( |
| 332 file_mapping_if_->Map( |
| 333 instance_->pp_instance(), |
| 334 file_io.pp_resource(), |
| 335 page_size, |
| 336 PP_FILEMAPPROTECTION_READ, |
| 337 PP_FILEMAPFLAG_SHARED | PP_FILEMAPFLAG_PRIVATE, |
| 338 0, |
| 339 &address, |
| 340 callback.GetCallback().pp_completion_callback())); |
| 341 CHECK_CALLBACK_BEHAVIOR(callback); |
| 342 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 343 ASSERT_EQ(NULL, address); |
| 344 |
| 345 // Bad flags. |
| 346 callback.WaitForResult( |
| 347 file_mapping_if_->Map( |
| 348 instance_->pp_instance(), |
| 349 file_io.pp_resource(), |
| 350 page_size, |
| 351 PP_FILEMAPPROTECTION_READ, |
| 352 ~PP_FILEMAPFLAG_SHARED, |
| 353 0, |
| 354 &address, |
| 355 callback.GetCallback().pp_completion_callback())); |
| 356 CHECK_CALLBACK_BEHAVIOR(callback); |
| 357 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 358 ASSERT_EQ(NULL, address); |
| 359 |
| 360 // Bad offset; not a multiple of page size. |
| 361 callback.WaitForResult( |
| 362 file_mapping_if_->Map( |
| 363 instance_->pp_instance(), |
| 364 file_io.pp_resource(), |
| 365 page_size, |
| 366 PP_FILEMAPPROTECTION_READ, |
| 367 ~PP_FILEMAPFLAG_SHARED, |
| 368 1, |
| 369 &address, |
| 370 callback.GetCallback().pp_completion_callback())); |
| 371 CHECK_CALLBACK_BEHAVIOR(callback); |
| 372 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 373 ASSERT_EQ(NULL, address); |
| 374 |
| 375 // Unmap NULL. |
| 376 callback.WaitForResult( |
| 377 file_mapping_if_->Unmap( |
| 378 instance_->pp_instance(), |
| 379 NULL, |
| 380 page_size, |
| 381 callback.GetCallback().pp_completion_callback())); |
| 382 CHECK_CALLBACK_BEHAVIOR(callback); |
| 383 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 384 |
| 385 // Unmap bad address. |
| 386 callback.WaitForResult( |
| 387 file_mapping_if_->Unmap( |
| 388 instance_->pp_instance(), |
| 389 reinterpret_cast<const void*>(0xdeadbeef), |
| 390 page_size, |
| 391 callback.GetCallback().pp_completion_callback())); |
| 392 CHECK_CALLBACK_BEHAVIOR(callback); |
| 393 ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result()); |
| 394 |
| 395 PASS(); |
| 396 } |
| 397 |
| 398 std::string TestFileMapping::TestMap() { |
| 399 ASSERT_SUBTEST_SUCCESS(MapAndCheckResults(PP_FILEMAPPROTECTION_READ, |
| 400 PP_FILEMAPFLAG_SHARED)); |
| 401 ASSERT_SUBTEST_SUCCESS(MapAndCheckResults(PP_FILEMAPPROTECTION_WRITE, |
| 402 PP_FILEMAPFLAG_SHARED)); |
| 403 ASSERT_SUBTEST_SUCCESS( |
| 404 MapAndCheckResults(PP_FILEMAPPROTECTION_WRITE | PP_FILEMAPPROTECTION_READ, |
| 405 PP_FILEMAPFLAG_SHARED)); |
| 406 ASSERT_SUBTEST_SUCCESS(MapAndCheckResults(PP_FILEMAPPROTECTION_READ, |
| 407 PP_FILEMAPFLAG_PRIVATE)); |
| 408 ASSERT_SUBTEST_SUCCESS(MapAndCheckResults(PP_FILEMAPPROTECTION_WRITE, |
| 409 PP_FILEMAPFLAG_PRIVATE)); |
| 410 ASSERT_SUBTEST_SUCCESS( |
| 411 MapAndCheckResults(PP_FILEMAPPROTECTION_WRITE | PP_FILEMAPPROTECTION_READ, |
| 412 PP_FILEMAPFLAG_PRIVATE)); |
| 413 PASS(); |
| 414 } |
| 415 |
| 416 std::string TestFileMapping::TestPartialRegions() { |
| 417 TestCompletionCallback callback(instance_->pp_instance(), callback_type()); |
| 418 |
| 419 pp::FileSystem file_system(instance_, PP_FILESYSTEMTYPE_LOCALTEMPORARY); |
| 420 pp::FileRef file_ref1(file_system, "/mapped_file1"); |
| 421 pp::FileRef file_ref2(file_system, "/mapped_file2"); |
| 422 |
| 423 callback.WaitForResult(file_system.Open(1024, callback.GetCallback())); |
| 424 ASSERT_EQ(PP_OK, callback.result()); |
| 425 |
| 426 const int64_t page_size = |
| 427 file_mapping_if_->GetMapPageSize(instance_->pp_instance()); |
| 428 const int64_t kNumPages = 3; |
| 429 std::string file_contents1(kNumPages * page_size, 'a'); |
| 430 |
| 431 pp::FileIO file_io1(instance_); |
| 432 callback.WaitForResult(file_io1.Open(file_ref1, |
| 433 PP_FILEOPENFLAG_CREATE | |
| 434 PP_FILEOPENFLAG_TRUNCATE | |
| 435 PP_FILEOPENFLAG_READ | |
| 436 PP_FILEOPENFLAG_WRITE, |
| 437 callback.GetCallback())); |
| 438 ASSERT_EQ(PP_OK, callback.result()); |
| 439 ASSERT_EQ(PP_OK, WriteEntireBuffer(instance_->pp_instance(), |
| 440 &file_io1, |
| 441 0, |
| 442 file_contents1, |
| 443 callback_type())); |
| 444 |
| 445 // TODO(dmichael): Use C++ interface. |
| 446 void* address = NULL; |
| 447 callback.WaitForResult( |
| 448 file_mapping_if_->Map( |
| 449 instance_->pp_instance(), |
| 450 file_io1.pp_resource(), |
| 451 kNumPages * page_size, |
| 452 PP_FILEMAPPROTECTION_WRITE | PP_FILEMAPPROTECTION_READ, |
| 453 PP_FILEMAPFLAG_SHARED, |
| 454 0, |
| 455 &address, |
| 456 callback.GetCallback().pp_completion_callback())); |
| 457 CHECK_CALLBACK_BEHAVIOR(callback); |
| 458 ASSERT_EQ(PP_OK, callback.result()); |
| 459 ASSERT_NE(NULL, address); |
| 460 |
| 461 // Unmap only the middle page. |
| 462 void* address_of_middle_page = |
| 463 reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(address) + page_size); |
| 464 callback.WaitForResult( |
| 465 file_mapping_if_->Unmap( |
| 466 instance_->pp_instance(), |
| 467 address_of_middle_page, |
| 468 page_size, |
| 469 callback.GetCallback().pp_completion_callback())); |
| 470 CHECK_CALLBACK_BEHAVIOR(callback); |
| 471 ASSERT_EQ(PP_OK, callback.result()); |
| 472 |
| 473 // Write another file, map it in to the middle hole that was left above. |
| 474 pp::FileIO file_io2(instance_); |
| 475 callback.WaitForResult(file_io2.Open(file_ref2, |
| 476 PP_FILEOPENFLAG_CREATE | |
| 477 PP_FILEOPENFLAG_TRUNCATE | |
| 478 PP_FILEOPENFLAG_READ | |
| 479 PP_FILEOPENFLAG_WRITE, |
| 480 callback.GetCallback())); |
| 481 ASSERT_EQ(PP_OK, callback.result()); |
| 482 // This second file will have 1 page worth of data. |
| 483 std::string file_contents2(page_size, 'b'); |
| 484 ASSERT_EQ(PP_OK, WriteEntireBuffer(instance_->pp_instance(), |
| 485 &file_io2, |
| 486 0, |
| 487 file_contents2, |
| 488 callback_type())); |
| 489 callback.WaitForResult( |
| 490 file_mapping_if_->Map( |
| 491 instance_->pp_instance(), |
| 492 file_io2.pp_resource(), |
| 493 page_size, |
| 494 PP_FILEMAPPROTECTION_WRITE | PP_FILEMAPPROTECTION_READ, |
| 495 PP_FILEMAPFLAG_SHARED | PP_FILEMAPFLAG_FIXED, |
| 496 0, |
| 497 &address_of_middle_page, |
| 498 callback.GetCallback().pp_completion_callback())); |
| 499 CHECK_CALLBACK_BEHAVIOR(callback); |
| 500 ASSERT_EQ(PP_OK, callback.result()); |
| 501 PASS(); |
| 502 |
| 503 // Write something else to the mapped region, then unmap, and see if it |
| 504 // gets written to both files. (Note we have to Unmap to make sure that the |
| 505 // write is committed). |
| 506 memset(address, 'c', kNumPages * page_size); |
| 507 callback.WaitForResult( |
| 508 file_mapping_if_->Unmap( |
| 509 instance_->pp_instance(), address, kNumPages * page_size, |
| 510 callback.GetCallback().pp_completion_callback())); |
| 511 CHECK_CALLBACK_BEHAVIOR(callback); |
| 512 ASSERT_EQ(PP_OK, callback.result()); |
| 513 // The first and third page should have been written with 'c', but the |
| 514 // second page should be untouched. |
| 515 std::string expected_file_contents1 = std::string(page_size, 'c') + |
| 516 std::string(page_size, 'a') + |
| 517 std::string(page_size, 'c'); |
| 518 std::string new_file_contents1; |
| 519 ASSERT_EQ(PP_OK, ReadEntireFile(instance_->pp_instance(), |
| 520 &file_io1, |
| 521 0, |
| 522 &new_file_contents1, |
| 523 callback_type())); |
| 524 ASSERT_EQ(expected_file_contents1, new_file_contents1); |
| 525 |
| 526 // The second file should have been entirely over-written. |
| 527 std::string expected_file_contents2 = std::string(page_size, 'c'); |
| 528 std::string new_file_contents2; |
| 529 ASSERT_EQ(PP_OK, ReadEntireFile(instance_->pp_instance(), |
| 530 &file_io2, |
| 531 0, |
| 532 &new_file_contents2, |
| 533 callback_type())); |
| 534 ASSERT_EQ(expected_file_contents2, new_file_contents2); |
| 535 |
| 536 // TODO(dmichael): Test non-zero offset |
| 537 |
| 538 PASS(); |
| 539 } |
| 540 |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 69663002:
PPAPI: Implement PPB_FileMapping on POSIX (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src