| /* |
| ** This C program extracts all "words" from an input document and adds them |
| ** to an SQLite database. A "word" is any contiguous sequence of alphabetic |
| ** characters. All digits, punctuation, and whitespace characters are |
| ** word separators. The database stores a single entry for each distinct |
| ** word together with a count of the number of occurrences of that word. |
| ** A fresh database is created automatically on each run. |
| ** |
| ** wordcount DATABASE INPUTFILE |
| ** |
| ** The INPUTFILE name can be omitted, in which case input it taken from |
| ** standard input. |
| ** |
| ** Option: |
| ** |
| ** --without-rowid Use a WITHOUT ROWID table to store the words. |
| ** --insert Use INSERT mode (the default) |
| ** --replace Use REPLACE mode |
| ** --select Use SELECT mode |
| ** --update Use UPDATE mode |
| ** --delete Use DELETE mode |
| ** --query Use QUERY mode |
| ** --nocase Add the NOCASE collating sequence to the words. |
| ** --trace Enable sqlite3_trace() output. |
| ** --summary Show summary information on the collected data. |
| ** --stats Show sqlite3_status() results at the end. |
| ** --pagesize NNN Use a page size of NNN |
| ** --cachesize NNN Use a cache size of NNN |
| ** --commit NNN Commit after every NNN operations |
| ** --nosync Use PRAGMA synchronous=OFF |
| ** --journal MMMM Use PRAGMA journal_mode=MMMM |
| ** --timer Time the operation of this program |
| ** |
| ** Modes: |
| ** |
| ** Insert mode means: |
| ** (1) INSERT OR IGNORE INTO wordcount VALUES($new,1) |
| ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new -- if (1) is a noop |
| ** |
| ** Update mode means: |
| ** (1) INSERT OR IGNORE INTO wordcount VALUES($new,0) |
| ** (2) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new |
| ** |
| ** Replace mode means: |
| ** (1) REPLACE INTO wordcount |
| ** VALUES($new,ifnull((SELECT cnt FROM wordcount WHERE word=$new),0)+1); |
| ** |
| ** Select mode means: |
| ** (1) SELECT 1 FROM wordcount WHERE word=$new |
| ** (2) INSERT INTO wordcount VALUES($new,1) -- if (1) returns nothing |
| ** (3) UPDATE wordcount SET cnt=cnt+1 WHERE word=$new --if (1) return TRUE |
| ** |
| ** Delete mode means: |
| ** (1) DELETE FROM wordcount WHERE word=$new |
| ** |
| ** Query mode means: |
| ** (1) SELECT cnt FROM wordcount WHERE word=$new |
| ** |
| ** Note that delete mode and query mode are only useful for preexisting |
| ** databases. The wordcount table is created using IF NOT EXISTS so this |
| ** utility can be run multiple times on the same database file. The |
| ** --without-rowid, --nocase, and --pagesize parameters are only effective |
| ** when creating a new database and are harmless no-ops on preexisting |
| ** databases. |
| ** |
| ****************************************************************************** |
| ** |
| ** Compile as follows: |
| ** |
| ** gcc -I. wordcount.c sqlite3.c -ldl -lpthreads |
| ** |
| ** Or: |
| ** |
| ** gcc -I. -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \ |
| ** wordcount.c sqlite3.c |
| */ |
| #include <stdio.h> |
| #include <string.h> |
| #include <ctype.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include "sqlite3.h" |
| |
| /* Return the current wall-clock time */ |
| static sqlite3_int64 realTime(void){ |
| static sqlite3_vfs *clockVfs = 0; |
| sqlite3_int64 t; |
| if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0); |
| if( clockVfs->iVersion>=1 && clockVfs->xCurrentTimeInt64!=0 ){ |
| clockVfs->xCurrentTimeInt64(clockVfs, &t); |
| }else{ |
| double r; |
| clockVfs->xCurrentTime(clockVfs, &r); |
| t = (sqlite3_int64)(r*86400000.0); |
| } |
| return t; |
| } |
| |
| /* Print an error message and exit */ |
| static void fatal_error(const char *zMsg, ...){ |
| va_list ap; |
| va_start(ap, zMsg); |
| vfprintf(stderr, zMsg, ap); |
| va_end(ap); |
| exit(1); |
| } |
| |
| /* The sqlite3_trace() callback function */ |
| static void traceCallback(void *NotUsed, const char *zSql){ |
| printf("%s;\n", zSql); |
| } |
| |
| /* An sqlite3_exec() callback that prints results on standard output, |
| ** each column separated by a single space. */ |
| static int printResult(void *NotUsed, int nArg, char **azArg, char **azNm){ |
| int i; |
| printf("--"); |
| for(i=0; i<nArg; i++){ |
| printf(" %s", azArg[i] ? azArg[i] : "(null)"); |
| } |
| printf("\n"); |
| return 0; |
| } |
| |
| |
| /* |
| ** Add one character to a hash |
| */ |
| static void addCharToHash(unsigned int *a, unsigned char x){ |
| if( a[0]<4 ){ |
| a[1] = (a[1]<<8) | x; |
| a[0]++; |
| }else{ |
| a[2] = (a[2]<<8) | x; |
| a[0]++; |
| if( a[0]==8 ){ |
| a[3] += a[1] + a[4]; |
| a[4] += a[2] + a[3]; |
| a[0] = a[1] = a[2] = 0; |
| } |
| } |
| } |
| |
| /* |
| ** Compute the final hash value. |
| */ |
| static void finalHash(unsigned int *a, char *z){ |
| a[3] += a[1] + a[4] + a[0]; |
| a[4] += a[2] + a[3]; |
| sqlite3_snprintf(17, z, "%08x%08x", a[3], a[4]); |
| } |
| |
| |
| /* |
| ** Implementation of a checksum() aggregate SQL function |
| */ |
| static void checksumStep( |
| sqlite3_context *context, |
| int argc, |
| sqlite3_value **argv |
| ){ |
| const unsigned char *zVal; |
| int nVal, i, j; |
| unsigned int *a; |
| a = (unsigned*)sqlite3_aggregate_context(context, sizeof(unsigned int)*5); |
| |
| if( a ){ |
| for(i=0; i<argc; i++){ |
| nVal = sqlite3_value_bytes(argv[i]); |
| zVal = (const unsigned char*)sqlite3_value_text(argv[i]); |
| if( zVal ) for(j=0; j<nVal; j++) addCharToHash(a, zVal[j]); |
| addCharToHash(a, '|'); |
| } |
| addCharToHash(a, '\n'); |
| } |
| } |
| static void checksumFinalize(sqlite3_context *context){ |
| unsigned int *a; |
| char zResult[24]; |
| a = sqlite3_aggregate_context(context, 0); |
| if( a ){ |
| finalHash(a, zResult); |
| sqlite3_result_text(context, zResult, -1, SQLITE_TRANSIENT); |
| } |
| } |
| |
| |
| /* Define operating modes */ |
| #define MODE_INSERT 0 |
| #define MODE_REPLACE 1 |
| #define MODE_SELECT 2 |
| #define MODE_UPDATE 3 |
| #define MODE_DELETE 4 |
| #define MODE_QUERY 5 |
| |
| int main(int argc, char **argv){ |
| const char *zFileToRead = 0; /* Input file. NULL for stdin */ |
| const char *zDbName = 0; /* Name of the database file to create */ |
| int useWithoutRowid = 0; /* True for --without-rowid */ |
| int iMode = MODE_INSERT; /* One of MODE_xxxxx */ |
| int useNocase = 0; /* True for --nocase */ |
| int doTrace = 0; /* True for --trace */ |
| int showStats = 0; /* True for --stats */ |
| int showSummary = 0; /* True for --summary */ |
| int showTimer = 0; /* True for --timer */ |
| int cacheSize = 0; /* Desired cache size. 0 means default */ |
| int pageSize = 0; /* Desired page size. 0 means default */ |
| int commitInterval = 0; /* How often to commit. 0 means never */ |
| int noSync = 0; /* True for --nosync */ |
| const char *zJMode = 0; /* Journal mode */ |
| int nOp = 0; /* Operation counter */ |
| int i, j; /* Loop counters */ |
| sqlite3 *db; /* The SQLite database connection */ |
| char *zSql; /* Constructed SQL statement */ |
| sqlite3_stmt *pInsert = 0; /* The INSERT statement */ |
| sqlite3_stmt *pUpdate = 0; /* The UPDATE statement */ |
| sqlite3_stmt *pSelect = 0; /* The SELECT statement */ |
| sqlite3_stmt *pDelete = 0; /* The DELETE statement */ |
| FILE *in; /* The open input file */ |
| int rc; /* Return code from an SQLite interface */ |
| int iCur, iHiwtr; /* Statistics values, current and "highwater" */ |
| sqlite3_int64 sumCnt = 0; /* Sum in QUERY mode */ |
| sqlite3_int64 startTime; |
| char zInput[2000]; /* A single line of input */ |
| |
| /* Process command-line arguments */ |
| for(i=1; i<argc; i++){ |
| const char *z = argv[i]; |
| if( z[0]=='-' ){ |
| do{ z++; }while( z[0]=='-' ); |
| if( strcmp(z,"without-rowid")==0 ){ |
| useWithoutRowid = 1; |
| }else if( strcmp(z,"replace")==0 ){ |
| iMode = MODE_REPLACE; |
| }else if( strcmp(z,"select")==0 ){ |
| iMode = MODE_SELECT; |
| }else if( strcmp(z,"insert")==0 ){ |
| iMode = MODE_INSERT; |
| }else if( strcmp(z,"update")==0 ){ |
| iMode = MODE_UPDATE; |
| }else if( strcmp(z,"delete")==0 ){ |
| iMode = MODE_DELETE; |
| }else if( strcmp(z,"query")==0 ){ |
| iMode = MODE_QUERY; |
| }else if( strcmp(z,"nocase")==0 ){ |
| useNocase = 1; |
| }else if( strcmp(z,"trace")==0 ){ |
| doTrace = 1; |
| }else if( strcmp(z,"nosync")==0 ){ |
| noSync = 1; |
| }else if( strcmp(z,"stats")==0 ){ |
| showStats = 1; |
| }else if( strcmp(z,"summary")==0 ){ |
| showSummary = 1; |
| }else if( strcmp(z,"timer")==0 ){ |
| showTimer = i; |
| }else if( strcmp(z,"cachesize")==0 && i<argc-1 ){ |
| i++; |
| cacheSize = atoi(argv[i]); |
| }else if( strcmp(z,"pagesize")==0 && i<argc-1 ){ |
| i++; |
| pageSize = atoi(argv[i]); |
| }else if( strcmp(z,"commit")==0 && i<argc-1 ){ |
| i++; |
| commitInterval = atoi(argv[i]); |
| }else if( strcmp(z,"journal")==0 && i<argc-1 ){ |
| zJMode = argv[++i]; |
| }else{ |
| fatal_error("unknown option: %s\n", argv[i]); |
| } |
| }else if( zDbName==0 ){ |
| zDbName = argv[i]; |
| }else if( zFileToRead==0 ){ |
| zFileToRead = argv[i]; |
| }else{ |
| fatal_error("surplus argument: %s\n", argv[i]); |
| } |
| } |
| if( zDbName==0 ){ |
| fatal_error("Usage: %s [--options] DATABASE [INPUTFILE]\n", argv[0]); |
| } |
| startTime = realTime(); |
| |
| /* Open the database and the input file */ |
| if( sqlite3_open(zDbName, &db) ){ |
| fatal_error("Cannot open database file: %s\n", zDbName); |
| } |
| if( zFileToRead ){ |
| in = fopen(zFileToRead, "rb"); |
| if( in==0 ){ |
| fatal_error("Could not open input file \"%s\"\n", zFileToRead); |
| } |
| }else{ |
| in = stdin; |
| } |
| |
| /* Set database connection options */ |
| if( doTrace ) sqlite3_trace(db, traceCallback, 0); |
| if( pageSize ){ |
| zSql = sqlite3_mprintf("PRAGMA page_size=%d", pageSize); |
| sqlite3_exec(db, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| } |
| if( cacheSize ){ |
| zSql = sqlite3_mprintf("PRAGMA cache_size=%d", cacheSize); |
| sqlite3_exec(db, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| } |
| if( noSync ) sqlite3_exec(db, "PRAGMA synchronous=OFF", 0, 0, 0); |
| if( zJMode ){ |
| zSql = sqlite3_mprintf("PRAGMA journal_mode=%s", zJMode); |
| sqlite3_exec(db, zSql, 0, 0, 0); |
| sqlite3_free(zSql); |
| } |
| |
| |
| /* Construct the "wordcount" table into which to put the words */ |
| if( sqlite3_exec(db, "BEGIN IMMEDIATE", 0, 0, 0) ){ |
| fatal_error("Could not start a transaction\n"); |
| } |
| zSql = sqlite3_mprintf( |
| "CREATE TABLE IF NOT EXISTS wordcount(\n" |
| " word TEXT PRIMARY KEY COLLATE %s,\n" |
| " cnt INTEGER\n" |
| ")%s", |
| useNocase ? "nocase" : "binary", |
| useWithoutRowid ? " WITHOUT ROWID" : "" |
| ); |
| if( zSql==0 ) fatal_error("out of memory\n"); |
| rc = sqlite3_exec(db, zSql, 0, 0, 0); |
| if( rc ) fatal_error("Could not create the wordcount table: %s.\n", |
| sqlite3_errmsg(db)); |
| sqlite3_free(zSql); |
| |
| /* Prepare SQL statements that will be needed */ |
| if( iMode==MODE_QUERY ){ |
| rc = sqlite3_prepare_v2(db, |
| "SELECT cnt FROM wordcount WHERE word=?1", |
| -1, &pSelect, 0); |
| if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_SELECT ){ |
| rc = sqlite3_prepare_v2(db, |
| "SELECT 1 FROM wordcount WHERE word=?1", |
| -1, &pSelect, 0); |
| if( rc ) fatal_error("Could not prepare the SELECT statement: %s\n", |
| sqlite3_errmsg(db)); |
| rc = sqlite3_prepare_v2(db, |
| "INSERT INTO wordcount(word,cnt) VALUES(?1,1)", |
| -1, &pInsert, 0); |
| if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_SELECT || iMode==MODE_UPDATE || iMode==MODE_INSERT ){ |
| rc = sqlite3_prepare_v2(db, |
| "UPDATE wordcount SET cnt=cnt+1 WHERE word=?1", |
| -1, &pUpdate, 0); |
| if( rc ) fatal_error("Could not prepare the UPDATE statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_INSERT ){ |
| rc = sqlite3_prepare_v2(db, |
| "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,1)", |
| -1, &pInsert, 0); |
| if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_UPDATE ){ |
| rc = sqlite3_prepare_v2(db, |
| "INSERT OR IGNORE INTO wordcount(word,cnt) VALUES(?1,0)", |
| -1, &pInsert, 0); |
| if( rc ) fatal_error("Could not prepare the INSERT statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_REPLACE ){ |
| rc = sqlite3_prepare_v2(db, |
| "REPLACE INTO wordcount(word,cnt)" |
| "VALUES(?1,coalesce((SELECT cnt FROM wordcount WHERE word=?1),0)+1)", |
| -1, &pInsert, 0); |
| if( rc ) fatal_error("Could not prepare the REPLACE statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| if( iMode==MODE_DELETE ){ |
| rc = sqlite3_prepare_v2(db, |
| "DELETE FROM wordcount WHERE word=?1", |
| -1, &pDelete, 0); |
| if( rc ) fatal_error("Could not prepare the DELETE statement: %s\n", |
| sqlite3_errmsg(db)); |
| } |
| |
| /* Process the input file */ |
| while( fgets(zInput, sizeof(zInput), in) ){ |
| for(i=0; zInput[i]; i++){ |
| if( !isalpha(zInput[i]) ) continue; |
| for(j=i+1; isalpha(zInput[j]); j++){} |
| |
| /* Found a new word at zInput[i] that is j-i bytes long. |
| ** Process it into the wordcount table. */ |
| if( iMode==MODE_DELETE ){ |
| sqlite3_bind_text(pDelete, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pDelete)!=SQLITE_DONE ){ |
| fatal_error("DELETE failed: %s\n", sqlite3_errmsg(db)); |
| } |
| sqlite3_reset(pDelete); |
| }else if( iMode==MODE_SELECT ){ |
| sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC); |
| rc = sqlite3_step(pSelect); |
| sqlite3_reset(pSelect); |
| if( rc==SQLITE_ROW ){ |
| sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pUpdate)!=SQLITE_DONE ){ |
| fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db)); |
| } |
| sqlite3_reset(pUpdate); |
| }else if( rc==SQLITE_DONE ){ |
| sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pInsert)!=SQLITE_DONE ){ |
| fatal_error("Insert failed: %s\n", sqlite3_errmsg(db)); |
| } |
| sqlite3_reset(pInsert); |
| }else{ |
| fatal_error("SELECT failed: %s\n", sqlite3_errmsg(db)); |
| } |
| }else if( iMode==MODE_QUERY ){ |
| sqlite3_bind_text(pSelect, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pSelect)==SQLITE_ROW ){ |
| sumCnt += sqlite3_column_int64(pSelect, 0); |
| } |
| sqlite3_reset(pSelect); |
| }else{ |
| sqlite3_bind_text(pInsert, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pInsert)!=SQLITE_DONE ){ |
| fatal_error("INSERT failed: %s\n", sqlite3_errmsg(db)); |
| } |
| sqlite3_reset(pInsert); |
| if( iMode==MODE_UPDATE |
| || (iMode==MODE_INSERT && sqlite3_changes(db)==0) |
| ){ |
| sqlite3_bind_text(pUpdate, 1, zInput+i, j-i, SQLITE_STATIC); |
| if( sqlite3_step(pUpdate)!=SQLITE_DONE ){ |
| fatal_error("UPDATE failed: %s\n", sqlite3_errmsg(db)); |
| } |
| sqlite3_reset(pUpdate); |
| } |
| } |
| i = j-1; |
| |
| /* Increment the operation counter. Do a COMMIT if it is time. */ |
| nOp++; |
| if( commitInterval>0 && (nOp%commitInterval)==0 ){ |
| sqlite3_exec(db, "COMMIT; BEGIN IMMEDIATE", 0, 0, 0); |
| } |
| } |
| } |
| sqlite3_exec(db, "COMMIT", 0, 0, 0); |
| if( zFileToRead ) fclose(in); |
| sqlite3_finalize(pInsert); |
| sqlite3_finalize(pUpdate); |
| sqlite3_finalize(pSelect); |
| sqlite3_finalize(pDelete); |
| |
| if( iMode==MODE_QUERY ){ |
| printf("sum of cnt: %lld\n", sumCnt); |
| rc = sqlite3_prepare_v2(db,"SELECT sum(cnt*cnt) FROM wordcount", -1, |
| &pSelect, 0); |
| if( rc==SQLITE_OK && sqlite3_step(pSelect)==SQLITE_ROW ){ |
| printf("double-check: %lld\n", sqlite3_column_int64(pSelect, 0)); |
| } |
| sqlite3_finalize(pSelect); |
| } |
| |
| |
| if( showTimer ){ |
| sqlite3_int64 elapseTime = realTime() - startTime; |
| fprintf(stderr, "%3d.%03d wordcount", (int)(elapseTime/1000), |
| (int)(elapseTime%1000)); |
| for(i=1; i<argc; i++) if( i!=showTimer ) fprintf(stderr, " %s", argv[i]); |
| fprintf(stderr, "\n"); |
| } |
| |
| if( showSummary ){ |
| sqlite3_create_function(db, "checksum", -1, SQLITE_UTF8, 0, |
| 0, checksumStep, checksumFinalize); |
| sqlite3_exec(db, |
| "SELECT 'count(*): ', count(*) FROM wordcount;\n" |
| "SELECT 'sum(cnt): ', sum(cnt) FROM wordcount;\n" |
| "SELECT 'max(cnt): ', max(cnt) FROM wordcount;\n" |
| "SELECT 'avg(cnt): ', avg(cnt) FROM wordcount;\n" |
| "SELECT 'sum(cnt=1):', sum(cnt=1) FROM wordcount;\n" |
| "SELECT 'top 10: ', group_concat(word, ', ') FROM " |
| "(SELECT word FROM wordcount ORDER BY cnt DESC, word LIMIT 10);\n" |
| "SELECT 'checksum: ', checksum(word, cnt) FROM " |
| "(SELECT word, cnt FROM wordcount ORDER BY word);\n" |
| "PRAGMA integrity_check;\n", |
| printResult, 0, 0); |
| } |
| |
| /* Database connection statistics printed after both prepared statements |
| ** have been finalized */ |
| if( showStats ){ |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHiwtr, 0); |
| printf("-- Lookaside Slots Used: %d (max %d)\n", iCur,iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHiwtr, 0); |
| printf("-- Successful lookasides: %d\n", iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur,&iHiwtr,0); |
| printf("-- Lookaside size faults: %d\n", iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur,&iHiwtr,0); |
| printf("-- Lookaside OOM faults: %d\n", iHiwtr); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, 0); |
| printf("-- Pager Heap Usage: %d bytes\n", iCur); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1); |
| printf("-- Page cache hits: %d\n", iCur); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1); |
| printf("-- Page cache misses: %d\n", iCur); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1); |
| printf("-- Page cache writes: %d\n", iCur); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, 0); |
| printf("-- Schema Heap Usage: %d bytes\n", iCur); |
| sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, 0); |
| printf("-- Statement Heap Usage: %d bytes\n", iCur); |
| } |
| |
| sqlite3_close(db); |
| |
| /* Global memory usage statistics printed after the database connection |
| ** has closed. Memory usage should be zero at this point. */ |
| if( showStats ){ |
| sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, 0); |
| printf("-- Memory Used (bytes): %d (max %d)\n", iCur,iHiwtr); |
| sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, 0); |
| printf("-- Outstanding Allocations: %d (max %d)\n", iCur,iHiwtr); |
| sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, 0); |
| printf("-- Pcache Overflow Bytes: %d (max %d)\n", iCur,iHiwtr); |
| sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, &iCur, &iHiwtr, 0); |
| printf("-- Scratch Overflow Bytes: %d (max %d)\n", iCur,iHiwtr); |
| sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, 0); |
| printf("-- Largest Allocation: %d bytes\n",iHiwtr); |
| sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, 0); |
| printf("-- Largest Pcache Allocation: %d bytes\n",iHiwtr); |
| sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, &iCur, &iHiwtr, 0); |
| printf("-- Largest Scratch Allocation: %d bytes\n", iHiwtr); |
| } |
| return 0; |
| } |
