| OLD | NEW |
|---|
| (Empty) | |
| 1 /* |
| 2 ** This C program extracts all "words" from an input document and adds them |
| 3 ** to an SQLite database. A "word" is any contiguous sequence of alphabetic |
| 4 ** characters. All digits, punctuation, and whitespace characters are |
| 5 ** word separators. The database stores a single entry for each distinct |
| 6 ** word together with a count of the number of occurrences of that word. |
| 7 ** A fresh database is created automatically on each run. |
| 8 ** |
| 9 ** wordcount DATABASE INPUTFILE |
| 10 ** |
| 11 ** The INPUTFILE name can be omitted, in which case input it taken from |
| 12 ** standard input. |
| 13 ** |
| 14 ** Option: |
| 15 ** |
| 16 ** |
| 17 ** Modes: |
| 18 ** |
| 19 ** Insert mode means: |
| 20 ** (1) INSERT OR IGNORE INTO wordcount VALUES($new,1) |
| 21 ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new -- if (1) is a noop |
| 22 ** |
| 23 ** Update mode means: |
| 24 ** (1) INSERT OR IGNORE INTO wordcount VALUES($new,0) |
| 25 ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new |
| 26 ** |
| 27 ** Replace mode means: |
| 28 ** (1) REPLACE INTO wordcount |
| 29 ** VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1); |
| 30 ** |
| 31 ** Select mode means: |
| 32 ** (1) SELECT 1 FROM wordcount WHERE word=$new |
| 33 ** (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing |
| 34 ** (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new --if (1) return TRUE |
| 35 ** |
| 36 ** Delete mode means: |
| 37 ** (1) DELETE FROM wordcount WHERE word=$new |
| 38 ** |
| 39 ** Query mode means: |
| 40 ** (1) SELECT cnt FROM wordcount WHERE word=$new |
| 41 ** |
| 42 ** Note that delete mode and query mode are only useful for preexisting |
| 43 ** databases. The wordcount table is created using IF NOT EXISTS so this |
| 44 ** utility can be run multiple times on the same database file. The |
| 45 ** --without-rowid, --nocase, and --pagesize parameters are only effective |
| 46 ** when creating a new database and are harmless no-ops on preexisting |
| 47 ** databases. |
| 48 ** |
| 49 ****************************************************************************** |
| 50 ** |
| 51 ** Compile as follows: |
| 52 ** |
| 53 ** gcc -I. wordcount.c sqlite3.c -ldl -lpthreads |
| 54 ** |
| 55 ** Or: |
| 56 ** |
| 57 ** gcc -I. -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \ |
| 58 ** wordcount.c sqlite3.c |
| 59 */ |
| 60 #include <stdio.h> |
| 61 #include <string.h> |
| 62 #include <ctype.h> |
| 63 #include <stdlib.h> |
| 64 #include <stdarg.h> |
| 65 #include "sqlite3.h" |
| 66 #ifndef _WIN32 |
| 67 # include <unistd.h> |
| 68 #else |
| 69 # include <io.h> |
| 70 #endif |
| 71 #define ISALPHA(X) isalpha((unsigned char)(X)) |
| 72 |
| 73 const char zHelp[] = |
| 74 "Usage: wordcount [OPTIONS] DATABASE [INPUT]\n" |
| 75 " --all Repeat the test for all test modes\n" |
| 76 " --cachesize NNN Use a cache size of NNN\n" |
| 77 " --commit NNN Commit after every NNN operations\n" |
| 78 " --delete Use DELETE mode\n" |
| 79 " --insert Use INSERT mode (the default)\n" |
| 80 " --journal MMMM Use PRAGMA journal_mode=MMMM\n" |
| 81 " --nocase Add the NOCASE collating sequence to the words.\n" |
| 82 " --nosync Use PRAGMA synchronous=OFF\n" |
| 83 " --pagesize NNN Use a page size of NNN\n" |
| 84 " --query Use QUERY mode\n" |
| 85 " --replace Use REPLACE mode\n" |
| 86 " --select Use SELECT mode\n" |
| 87 " --stats Show sqlite3_status() results at the end.\n" |
| 88 " --summary Show summary information on the collected data.\n" |
| 89 " --tag NAME Tag all output using NAME. Use only stdout.\n" |
| 90 " --timer Time the operation of this program\n" |
| 91 " --trace Enable sqlite3_trace() output.\n" |
| 92 " --update Use UPDATE mode\n" |
| 93 " --without-rowid Use a WITHOUT ROWID table to store the words.\n" |
| 94 ; |
| 95 |
| 96 /* Output tag */ |
| 97 char *zTag = "--"; |
| 98 |
| 99 /* Return the current wall-clock time */ |
| 100 static sqlite3_int64 realTime(void){ |
| 101 static sqlite3_vfs *clockVfs = 0; |
| 102 sqlite3_int64 t; |
| 103 if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0); |
| 104 if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){ |
| 105 clockVfs->xCurrentTimeInt64(clockVfs, &t); |
| 106 }else{ |
| 107 double r; |
| 108 clockVfs->xCurrentTime(clockVfs, &r); |
| 109 t = (sqlite3_int64)(r*86400000.0); |
| 110 } |
| 111 return t; |
| 112 } |
| 113 |
| 114 /* Print an error message and exit */ |
| 115 static void fatal_error(const char *zMsg, ...){ |
| 116 va_list ap; |
| 117 va_start(ap, zMsg); |
| 118 vfprintf(stderr, zMsg, ap); |
| 119 va_end(ap); |
| 120 exit(1); |
| 121 } |
| 122 |
| 123 /* Print a usage message and quit */ |
| 124 static void usage(void){ |
| 125 printf("%s",zHelp); |
| 126 exit(0); |
| 127 } |
| 128 |
| 129 /* The sqlite3_trace() callback function */ |
| 130 static void traceCallback(void *NotUsed, const char *zSql){ |
| 131 printf("%s;\n", zSql); |
| 132 } |
| 133 |
| 134 /* An sqlite3_exec() callback that prints results on standard output, |
| 135 ** each column separated by a single space. */ |
| 136 static int printResult(void *NotUsed, int nArg, char **azArg, char **azNm){ |
| 137 int i; |
| 138 printf("%s", zTag); |
| 139 for(i=0; i<nArg; i++){ |
| 140 printf(" %s", azArg[i] ? azArg[i] : "(null)"); |
| 141 } |
| 142 printf("\n"); |
| 143 return 0; |
| 144 } |
| 145 |
| 146 |
| 147 /* |
| 148 ** Add one character to a hash |
| 149 */ |
| 150 static void addCharToHash(unsigned int *a, unsigned char x){ |
| 151 if( a[0]<4 ){ |
| 152 a[1] = (a[1]<<8) | x; |
| 153 a[0]++; |
| 154 }else{ |
| 155 a[2] = (a[2]<<8) | x; |
| 156 a[0]++; |
| 157 if( a[0]==8 ){ |
| 158 a[3] += a[1] + a[4]; |
| 159 a[4] += a[2] + a[3]; |
| 160 a[0] = a[1] = a[2] = 0; |
| 161 } |
| 162 } |
| 163 } |
| 164 |
| 165 /* |
| 166 ** Compute the final hash value. |
| 167 */ |
| 168 static void finalHash(unsigned int *a, char *z){ |
| 169 a[3] += a[1] + a[4] + a[0]; |
| 170 a[4] += a[2] + a[3]; |
| 171 sqlite3_snprintf(17, z, "%08x%08x", a[3], a[4]); |
| 172 } |
| 173 |
| 174 |
| 175 /* |
| 176 ** Implementation of a checksum() aggregate SQL function |
| 177 */ |
| 178 static void checksumStep( |
| 179 sqlite3_context *context, |
| 180 int argc, |
| 181 sqlite3_value **argv |
| 182 ){ |
| 183 const unsigned char *zVal; |
| 184 int nVal, i, j; |
| 185 unsigned int *a; |
| 186 a = (unsigned*)sqlite3_aggregate_context(context, sizeof(unsigned int)*5); |
| 187 |
| 188 if( a ){ |
| 189 for(i=0; i<argc; i++){ |
| 190 nVal = sqlite3_value_bytes(argv[i]); |
| 191 zVal = (const unsigned char*)sqlite3_value_text(argv[i]); |
| 192 if( zVal ) for(j=0; j<nVal; j++) addCharToHash(a, zVal[j]); |
| 193 addCharToHash(a, '|'); |
| 194 } |
| 195 addCharToHash(a, '\n'); |
| 196 } |
| 197 } |
| 198 static void checksumFinalize(sqlite3_context *context){ |
| 199 unsigned int *a; |
| 200 char zResult[24]; |
| 201 a = sqlite3_aggregate_context(context, 0); |
| 202 if( a ){ |
| 203 finalHash(a, zResult); |
| 204 sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT); |
| 205 } |
| 206 } |
| 207 |
| 208 /* Define operating modes */ |
| 209 #define MODE_INSERT 0 |
| 210 #define MODE_REPLACE 1 |
| 211 #define MODE_SELECT 2 |
| 212 #define MODE_UPDATE 3 |
| 213 #define MODE_DELETE 4 |
| 214 #define MODE_QUERY 5 |
| 215 #define MODE_COUNT 6 |
| 216 #define MODE_ALL (-1) |
| 217 |
| 218 /* Mode names */ |
| 219 static const char *azMode[] = { |
| 220 "--insert", |
| 221 "--replace", |
| 222 "--select", |
| 223 "--update", |
| 224 "--delete", |
| 225 "--query" |
| 226 }; |
| 227 |
| 228 /* |
| 229 ** Determine if another iteration of the test is required. Return true |
| 230 ** if so. Return zero if all iterations have finished. |
| 231 */ |
| 232 static int allLoop( |
| 233 int iMode, /* The selected test mode */ |
| 234 int *piLoopCnt, /* Iteration loop counter */ |
| 235 int *piMode2, /* The test mode to use on the next iteration */ |
| 236 int *pUseWithoutRowid /* Whether or not to use --without-rowid */ |
| 237 ){ |
| 238 int i; |
| 239 if( iMode!=MODE_ALL ){ |
| 240 if( *piLoopCnt ) return 0; |
| 241 *piMode2 = iMode; |
| 242 *piLoopCnt = 1; |
| 243 return 1; |
| 244 } |
| 245 if( (*piLoopCnt)>=MODE_COUNT*2 ) return 0; |
| 246 i = (*piLoopCnt)++; |
| 247 *pUseWithoutRowid = i&1; |
| 248 *piMode2 = i>>1; |
| 249 return 1; |
| 250 } |
| 251 |
| 252 int main(int argc, char **argv){ |
| 253 const char *zFileToRead = 0; /* Input file. NULL for stdin */ |
| 254 const char *zDbName = 0; /* Name of the database file to create */ |
| 255 int useWithoutRowid = 0; /* True for --without-rowid */ |
| 256 int iMode = MODE_INSERT; /* One of MODE_xxxxx */ |
| 257 int iMode2; /* Mode to use for current --all iteration */ |
| 258 int iLoopCnt = 0; /* Which iteration when running --all */ |
| 259 int useNocase = 0; /* True for --nocase */ |
| 260 int doTrace = 0; /* True for --trace */ |
| 261 int showStats = 0; /* True for --stats */ |
| 262 int showSummary = 0; /* True for --summary */ |
| 263 int showTimer = 0; /* True for --timer */ |
| 264 int cacheSize = 0; /* Desired cache size. 0 means default */ |
| 265 int pageSize = 0; /* Desired page size. 0 means default */ |
| 266 int commitInterval = 0; /* How often to commit. 0 means never */ |
| 267 int noSync = 0; /* True for --nosync */ |
| 268 const char *zJMode = 0; /* Journal mode */ |
| 269 int nOp = 0; /* Operation counter */ |
| 270 int i, j; /* Loop counters */ |
| 271 sqlite3 *db; /* The SQLite database connection */ |
| 272 char *zSql; /* Constructed SQL statement */ |
| 273 sqlite3_stmt *pInsert = 0; /* The INSERT statement */ |
| 274 sqlite3_stmt *pUpdate = 0; /* The UPDATE statement */ |
| 275 sqlite3_stmt *pSelect = 0; /* The SELECT statement */ |
| 276 sqlite3_stmt *pDelete = 0; /* The DELETE statement */ |
| 277 FILE *in; /* The open input file */ |
| 278 int rc; /* Return code from an SQLite interface */ |
| 279 int iCur, iHiwtr; /* Statistics values, current and "highwater" */ |
| 280 FILE *pTimer = stderr; /* Output channel for the timer */ |
| 281 sqlite3_int64 sumCnt = 0; /* Sum in QUERY mode */ |
| 282 sqlite3_int64 startTime; /* Time of start */ |
| 283 sqlite3_int64 totalTime = 0; /* Total time */ |
| 284 char zInput[2000]; /* A single line of input */ |
| 285 |
| 286 /* Process command-line arguments */ |
| 287 for(i=1; i<argc; i++){ |
| 288 const char *z = argv[i]; |
| 289 if( z[0]=='-' ){ |
| 290 do{ z++; }while( z[0]=='-' ); |
| 291 if( strcmp(z,"without-rowid")==0 ){ |
| 292 useWithoutRowid = 1; |
| 293 }else if( strcmp(z,"replace")==0 ){ |
| 294 iMode = MODE_REPLACE; |
| 295 }else if( strcmp(z,"select")==0 ){ |
| 296 iMode = MODE_SELECT; |
| 297 }else if( strcmp(z,"insert")==0 ){ |
| 298 iMode = MODE_INSERT; |
| 299 }else if( strcmp(z,"update")==0 ){ |
| 300 iMode = MODE_UPDATE; |
| 301 }else if( strcmp(z,"delete")==0 ){ |
| 302 iMode = MODE_DELETE; |
| 303 }else if( strcmp(z,"query")==0 ){ |
| 304 iMode = MODE_QUERY; |
| 305 }else if( strcmp(z,"all")==0 ){ |
| 306 iMode = MODE_ALL; |
| 307 showTimer = -99; |
| 308 }else if( strcmp(z,"nocase")==0 ){ |
| 309 useNocase = 1; |
| 310 }else if( strcmp(z,"trace")==0 ){ |
| 311 doTrace = 1; |
| 312 }else if( strcmp(z,"nosync")==0 ){ |
| 313 noSync = 1; |
| 314 }else if( strcmp(z,"stats")==0 ){ |
| 315 showStats = 1; |
| 316 }else if( strcmp(z,"summary")==0 ){ |
| 317 showSummary = 1; |
| 318 }else if( strcmp(z,"timer")==0 ){ |
| 319 showTimer = i; |
| 320 }else if( strcmp(z,"cachesize")==0 && i<argc-1 ){ |
| 321 i++; |
| 322 cacheSize = atoi(argv[i]); |
| 323 }else if( strcmp(z,"pagesize")==0 && i<argc-1 ){ |
| 324 i++; |
| 325 pageSize = atoi(argv[i]); |
| 326 }else if( strcmp(z,"commit")==0 && i<argc-1 ){ |
| 327 i++; |
| 328 commitInterval = atoi(argv[i]); |
| 329 }else if( strcmp(z,"journal")==0 && i<argc-1 ){ |
| 330 zJMode = argv[++i]; |
| 331 }else if( strcmp(z,"tag")==0 && i<argc-1 ){ |
| 332 zTag = argv[++i]; |
| 333 pTimer = stdout; |
| 334 }else if( strcmp(z, "help")==0 || strcmp(z,"?")==0 ){ |
| 335 usage(); |
| 336 }else{ |
| 337 fatal_error("unknown option: \"%s\"\n" |
| 338 "Use --help for a list of options\n", |
| 339 argv[i]); |
| 340 } |
| 341 }else if( zDbName==0 ){ |
| 342 zDbName = argv[i]; |
| 343 }else if( zFileToRead==0 ){ |
| 344 zFileToRead = argv[i]; |
| 345 }else{ |
| 346 fatal_error("surplus argument: \"%s\"\n", argv[i]); |
| 347 } |
| 348 } |
| 349 if( zDbName==0 ){ |
| 350 usage(); |
| 351 } |
| 352 startTime = realTime(); |
| 353 |
| 354 /* Open the database and the input file */ |
| 355 if( zDbName[0] && strcmp(zDbName,":memory:")!=0 ){ |
| 356 unlink(zDbName); |
| 357 } |
| 358 if( sqlite3_open(zDbName, &db) ){ |
| 359 fatal_error("Cannot open database file: %s\n", zDbName); |
| 360 } |
| 361 if( zFileToRead ){ |
| 362 in = fopen(zFileToRead, "rb"); |
| 363 if( in==0 ){ |
| 364 fatal_error("Could not open input file \"%s\"\n", zFileToRead); |
| 365 } |
| 366 }else{ |
| 367 if( iMode==MODE_ALL ){ |
| 368 fatal_error("The --all mode cannot be used with stdin\n"); |
| 369 } |
| 370 in = stdin; |
| 371 } |
| 372 |
| 373 /* Set database connection options */ |
| 374 if( doTrace ) sqlite3_trace(db, traceCallback, 0); |
| 375 if( pageSize ){ |
| 376 zSql = sqlite3_mprintf("PRAGMA page_size=%d", pageSize); |
| 377 sqlite3_exec(db, zSql, 0, 0, 0); |
| 378 sqlite3_free(zSql); |
| 379 } |
| 380 if( cacheSize ){ |
| 381 zSql = sqlite3_mprintf("PRAGMA cache_size=%d", cacheSize); |
| 382 sqlite3_exec(db, zSql, 0, 0, 0); |
| 383 sqlite3_free(zSql); |
| 384 } |
| 385 if( noSync ) sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0); |
| 386 if( zJMode ){ |
| 387 zSql = sqlite3_mprintf("PRAGMA journal_mode=%s", zJMode); |
| 388 sqlite3_exec(db, zSql, 0, 0, 0); |
| 389 sqlite3_free(zSql); |
| 390 } |
| 391 |
| 392 iLoopCnt = 0; |
| 393 while( allLoop(iMode, &iLoopCnt, &iMode2, &useWithoutRowid) ){ |
| 394 /* Delete prior content in --all mode */ |
| 395 if( iMode==MODE_ALL ){ |
| 396 if( sqlite3_exec(db, "DROP TABLE IF EXISTS wordcount; VACUUM;",0,0,0) ){ |
| 397 fatal_error("Could not clean up prior iteration\n"); |
| 398 } |
| 399 startTime = realTime(); |
| 400 rewind(in); |
| 401 } |
| 402 |
| 403 /* Construct the "wordcount" table into which to put the words */ |
| 404 if( sqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, 0) ){ |
| 405 fatal_error("Could not start a transaction\n"); |
| 406 } |
| 407 zSql = sqlite3_mprintf( |
| 408 "CREATE TABLE IF NOT EXISTS wordcount(\n" |
| 409 " word TEXT PRIMARY KEY COLLATE %s,\n" |
| 410 " cnt INTEGER\n" |
| 411 ")%s", |
| 412 useNocase ? "nocase" : "binary", |
| 413 useWithoutRowid ? " WITHOUT ROWID" : "" |
| 414 ); |
| 415 if( zSql==0 ) fatal_error("out of memory\n"); |
| 416 rc = sqlite3_exec(db, zSql, 0, 0, 0); |
| 417 if( rc ) fatal_error("Could not create the wordcount table: %s.\n", |
| 418 sqlite3_errmsg(db)); |
| 419 sqlite3_free(zSql); |
| 420 |
| 421 /* Prepare SQL statements that will be needed */ |
| 422 if( iMode2==MODE_QUERY ){ |
| 423 rc = sqlite3_prepare_v2(db, |
| 424 "SELECT cnt FROM wordcount WHERE word=?1", |
| 425 -1, &pSelect, 0); |
| 426 if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n", |
| 427 sqlite3_errmsg(db)); |
| 428 } |
| 429 if( iMode2==MODE_SELECT ){ |
| 430 rc = sqlite3_prepare_v2(db, |
| 431 "SELECT 1 FROM wordcount WHERE word=?1", |
| 432 -1, &pSelect, 0); |
| 433 if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n", |
| 434 sqlite3_errmsg(db)); |
| 435 rc = sqlite3_prepare_v2(db, |
| 436 "INSERT INTO wordcount(word,cnt) VALUES(?1,1)", |
| 437 -1, &pInsert, 0); |
| 438 if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| 439 sqlite3_errmsg(db)); |
| 440 } |
| 441 if( iMode2==MODE_SELECT || iMode2==MODE_UPDATE || iMode2==MODE_INSERT ){ |
| 442 rc = sqlite3_prepare_v2(db, |
| 443 "UPDATE wordcount SET cnt=cnt+1 WHERE word=?1", |
| 444 -1, &pUpdate, 0); |
| 445 if( rc ) fatal_error("Could not prepare the UPDATE statement: %s\n", |
| 446 sqlite3_errmsg(db)); |
| 447 } |
| 448 if( iMode2==MODE_INSERT ){ |
| 449 rc = sqlite3_prepare_v2(db, |
| 450 "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,1)", |
| 451 -1, &pInsert, 0); |
| 452 if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| 453 sqlite3_errmsg(db)); |
| 454 } |
| 455 if( iMode2==MODE_UPDATE ){ |
| 456 rc = sqlite3_prepare_v2(db, |
| 457 "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,0)", |
| 458 -1, &pInsert, 0); |
| 459 if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| 460 sqlite3_errmsg(db)); |
| 461 } |
| 462 if( iMode2==MODE_REPLACE ){ |
| 463 rc = sqlite3_prepare_v2(db, |
| 464 "REPLACE INTO wordcount(word,cnt)" |
| 465 "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)", |
| 466 -1, &pInsert, 0); |
| 467 if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n", |
| 468 sqlite3_errmsg(db)); |
| 469 } |
| 470 if( iMode2==MODE_DELETE ){ |
| 471 rc = sqlite3_prepare_v2(db, |
| 472 "DELETE FROM wordcount WHERE word=?1", |
| 473 -1, &pDelete, 0); |
| 474 if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n", |
| 475 sqlite3_errmsg(db)); |
| 476 } |
| 477 |
| 478 /* Process the input file */ |
| 479 while( fgets(zInput, sizeof(zInput), in) ){ |
| 480 for(i=0; zInput[i]; i++){ |
| 481 if( !ISALPHA(zInput[i]) ) continue; |
| 482 for(j=i+1; ISALPHA(zInput[j]); j++){} |
| 483 |
| 484 /* Found a new word at zInput[i] that is j-i bytes long. |
| 485 ** Process it into the wordcount table. */ |
| 486 if( iMode2==MODE_DELETE ){ |
| 487 sqlite3_bind_text(pDelete, 1, zInput+i, j-i, SQLITE_STATIC); |
| 488 if( sqlite3_step(pDelete)!=SQLITE_DONE ){ |
| 489 fatal_error("DELETE failed: %s\n", sqlite3_errmsg(db)); |
| 490 } |
| 491 sqlite3_reset(pDelete); |
| 492 }else if( iMode2==MODE_SELECT ){ |
| 493 sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC); |
| 494 rc = sqlite3_step(pSelect); |
| 495 sqlite3_reset(pSelect); |
| 496 if( rc==SQLITE_ROW ){ |
| 497 sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC); |
| 498 if( sqlite3_step(pUpdate)!=SQLITE_DONE ){ |
| 499 fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db)); |
| 500 } |
| 501 sqlite3_reset(pUpdate); |
| 502 }else if( rc==SQLITE_DONE ){ |
| 503 sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC); |
| 504 if( sqlite3_step(pInsert)!=SQLITE_DONE ){ |
| 505 fatal_error("Insert failed: %s\n", sqlite3_errmsg(db)); |
| 506 } |
| 507 sqlite3_reset(pInsert); |
| 508 }else{ |
| 509 fatal_error("SELECT failed: %s\n", sqlite3_errmsg(db)); |
| 510 } |
| 511 }else if( iMode2==MODE_QUERY ){ |
| 512 sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC); |
| 513 if( sqlite3_step(pSelect)==SQLITE_ROW ){ |
| 514 sumCnt += sqlite3_column_int64(pSelect, 0); |
| 515 } |
| 516 sqlite3_reset(pSelect); |
| 517 }else{ |
| 518 sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC); |
| 519 if( sqlite3_step(pInsert)!=SQLITE_DONE ){ |
| 520 fatal_error("INSERT failed: %s\n", sqlite3_errmsg(db)); |
| 521 } |
| 522 sqlite3_reset(pInsert); |
| 523 if( iMode2==MODE_UPDATE |
| 524 || (iMode2==MODE_INSERT && sqlite3_changes(db)==0) |
| 525 ){ |
| 526 sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC); |
| 527 if( sqlite3_step(pUpdate)!=SQLITE_DONE ){ |
| 528 fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db)); |
| 529 } |
| 530 sqlite3_reset(pUpdate); |
| 531 } |
| 532 } |
| 533 i = j-1; |
| 534 |
| 535 /* Increment the operation counter. Do a COMMIT if it is time. */ |
| 536 nOp++; |
| 537 if( commitInterval>0 && (nOp%commitInterval)==0 ){ |
| 538 sqlite3_exec(db, "COMMIT; BEGIN IMMEDIATE", 0, 0, 0); |
| 539 } |
| 540 } |
| 541 } |
| 542 sqlite3_exec(db, "COMMIT", 0, 0, 0); |
| 543 sqlite3_finalize(pInsert); pInsert = 0; |
| 544 sqlite3_finalize(pUpdate); pUpdate = 0; |
| 545 sqlite3_finalize(pSelect); pSelect = 0; |
| 546 sqlite3_finalize(pDelete); pDelete = 0; |
| 547 |
| 548 if( iMode2==MODE_QUERY && iMode!=MODE_ALL ){ |
| 549 printf("%s sum of cnt: %lld\n", zTag, sumCnt); |
| 550 rc = sqlite3_prepare_v2(db,"SELECT sum(cnt*cnt) FROM wordcount", -1, |
| 551 &pSelect, 0); |
| 552 if( rc==SQLITE_OK && sqlite3_step(pSelect)==SQLITE_ROW ){ |
| 553 printf("%s double-check: %lld\n", zTag,sqlite3_column_int64(pSelect,0)); |
| 554 } |
| 555 sqlite3_finalize(pSelect); |
| 556 } |
| 557 |
| 558 |
| 559 if( showTimer ){ |
| 560 sqlite3_int64 elapseTime = realTime() - startTime; |
| 561 totalTime += elapseTime; |
| 562 fprintf(pTimer, "%3d.%03d wordcount", (int)(elapseTime/1000), |
| 563 (int)(elapseTime%1000)); |
| 564 if( iMode==MODE_ALL ){ |
| 565 fprintf(pTimer, " %s%s\n", azMode[iMode2], |
| 566 useWithoutRowid? " --without-rowid" : ""); |
| 567 }else{ |
| 568 for(i=1; i<argc; i++) if( i!=showTimer ) fprintf(pTimer," %s",argv[i]); |
| 569 fprintf(pTimer, "\n"); |
| 570 } |
| 571 } |
| 572 |
| 573 if( showSummary ){ |
| 574 sqlite3_create_function(db, "checksum", -1, SQLITE_UTF8, 0, |
| 575 0, checksumStep, checksumFinalize); |
| 576 sqlite3_exec(db, |
| 577 "SELECT 'count(*): ', count(*) FROM wordcount;\n" |
| 578 "SELECT 'sum(cnt): ', sum(cnt) FROM wordcount;\n" |
| 579 "SELECT 'max(cnt): ', max(cnt) FROM wordcount;\n" |
| 580 "SELECT 'avg(cnt): ', avg(cnt) FROM wordcount;\n" |
| 581 "SELECT 'sum(cnt=1):', sum(cnt=1) FROM wordcount;\n" |
| 582 "SELECT 'top 10: ', group_concat(word, ', ') FROM " |
| 583 "(SELECT word FROM wordcount ORDER BY cnt DESC, word LIMIT 10);\n" |
| 584 "SELECT 'checksum: ', checksum(word, cnt) FROM " |
| 585 "(SELECT word, cnt FROM wordcount ORDER BY word);\n" |
| 586 "PRAGMA integrity_check;\n", |
| 587 printResult, 0, 0); |
| 588 } |
| 589 } /* End the --all loop */ |
| 590 |
| 591 /* Close the input file after the last read */ |
| 592 if( zFileToRead ) fclose(in); |
| 593 |
| 594 /* In --all mode, so the total time */ |
| 595 if( iMode==MODE_ALL && showTimer ){ |
| 596 fprintf(pTimer, "%3d.%03d wordcount --all\n", (int)(totalTime/1000), |
| 597 (int)(totalTime%1000)); |
| 598 } |
| 599 |
| 600 /* Database connection statistics printed after both prepared statements |
| 601 ** have been finalized */ |
| 602 if( showStats ){ |
| 603 sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHiwtr, 0); |
| 604 printf("%s Lookaside Slots Used: %d (max %d)\n", zTag, iCur,iHiwtr); |
| 605 sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHiwtr, 0); |
| 606 printf("%s Successful lookasides: %d\n", zTag, iHiwtr); |
| 607 sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHiwtr,0); |
| 608 printf("%s Lookaside size faults: %d\n", zTag, iHiwtr); |
| 609 sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHiwtr,0); |
| 610 printf("%s Lookaside OOM faults: %d\n", zTag, iHiwtr); |
| 611 sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, 0); |
| 612 printf("%s Pager Heap Usage: %d bytes\n", zTag, iCur); |
| 613 sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1); |
| 614 printf("%s Page cache hits: %d\n", zTag, iCur); |
| 615 sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1); |
| 616 printf("%s Page cache misses: %d\n", zTag, iCur); |
| 617 sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1); |
| 618 printf("%s Page cache writes: %d\n", zTag, iCur); |
| 619 sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, 0); |
| 620 printf("%s Schema Heap Usage: %d bytes\n", zTag, iCur); |
| 621 sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, 0); |
| 622 printf("%s Statement Heap Usage: %d bytes\n", zTag, iCur); |
| 623 } |
| 624 |
| 625 sqlite3_close(db); |
| 626 |
| 627 /* Global memory usage statistics printed after the database connection |
| 628 ** has closed. Memory usage should be zero at this point. */ |
| 629 if( showStats ){ |
| 630 sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, 0); |
| 631 printf("%s Memory Used (bytes): %d (max %d)\n", zTag,iCur,iHiwtr); |
| 632 sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, 0); |
| 633 printf("%s Outstanding Allocations: %d (max %d)\n",zTag,iCur,iHiwtr); |
| 634 sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, 0); |
| 635 printf("%s Pcache Overflow Bytes: %d (max %d)\n",zTag,iCur,iHiwtr); |
| 636 sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, &iCur, &iHiwtr, 0); |
| 637 printf("%s Scratch Overflow Bytes: %d (max %d)\n",zTag,iCur,iHiwtr); |
| 638 sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, 0); |
| 639 printf("%s Largest Allocation: %d bytes\n",zTag,iHiwtr); |
| 640 sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, 0); |
| 641 printf("%s Largest Pcache Allocation: %d bytes\n",zTag,iHiwtr); |
| 642 sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, &iCur, &iHiwtr, 0); |
| 643 printf("%s Largest Scratch Allocation: %d bytes\n",zTag,iHiwtr); |
| 644 } |
| 645 return 0; |
| 646 } |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2747283002:
[sql] Import reference version of SQLite 3.17.. (Closed)
