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Overview
Comment: | Add the "max-limits" utility program to the tools/ subdirectory. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
c54173b6c1acbb41ed9c323099e94b8e |
User & Date: | drh 2017-02-06 15:27:44.567 |
Context
2017-02-06
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16:52 | Remove a small amount of unnecessary code from R-Tree. (check-in: e5aea89426 user: drh tags: trunk) | |
15:27 | Add the "max-limits" utility program to the tools/ subdirectory. (check-in: c54173b6c1 user: drh tags: trunk) | |
07:37 | Fix a bug in kvtest causing "init --variance 0" runs to generate single byte blob values only. (check-in: 6b0276f968 user: dan tags: trunk) | |
Changes
Added tool/max-limits.c.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | /* ** Link this program against an SQLite library of unknown provenance in order ** to display the compile-time maximum values for various settings. */ #include "sqlite3.h" #include <stdio.h> static const struct { int eCode; char *zName; } aLimit[] = { { SQLITE_LIMIT_LENGTH, "SQLITE_MAX_LENGTH" }, { SQLITE_LIMIT_SQL_LENGTH, "SQLITE_MAX_SQL_LENGTH" }, { SQLITE_LIMIT_COLUMN, "SQLITE_MAX_COLUMN" }, { SQLITE_LIMIT_EXPR_DEPTH, "SQLITE_MAX_EXPR_DEPTH" }, { SQLITE_LIMIT_COMPOUND_SELECT, "SQLITE_MAX_COMPOUND_SELECT" }, { SQLITE_LIMIT_VDBE_OP, "SQLITE_MAX_VDBE_OP" }, { SQLITE_LIMIT_FUNCTION_ARG, "SQLITE_MAX_FUNCTION_ARG" }, { SQLITE_LIMIT_ATTACHED, "SQLITE_MAX_ATTACHED" }, { SQLITE_LIMIT_LIKE_PATTERN_LENGTH, "SQLITE_MAX_LIKE_PATTERN_LENGTH" }, { SQLITE_LIMIT_VARIABLE_NUMBER, "SQLITE_MAX_VARIABLE_NUMBER" }, { SQLITE_LIMIT_TRIGGER_DEPTH, "SQLITE_MAX_TRIGGER_DEPTH" }, { SQLITE_LIMIT_WORKER_THREADS, "SQLITE_MAX_WORKER_THREADS" }, }; static int maxLimit(sqlite3 *db, int eCode){ int iOrig = sqlite3_limit(db, eCode, 0x7fffffff); return sqlite3_limit(db, eCode, iOrig); } int main(int argc, char **argv){ sqlite3 *db; int j, rc; rc = sqlite3_open(":memory:", &db); if( rc==SQLITE_OK ){ for(j=0; j<sizeof(aLimit)/sizeof(aLimit[0]); j++){ printf("%-35s %10d\n", aLimit[j].zName, maxLimit(db, aLimit[j].eCode)); } sqlite3_close(db); } } |