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