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Add the "max-limits" utility program to the tools/ subdirectory. 

FossilOrigin-Name: c54173b6c1acbb41ed9c323099e94b8e02c6c895
This commit is contained in:
drh 2017-02-06 15:27:44 +00:00
parent 809955b504
commit 943aa77a8a
3 changed files with 49 additions and 7 deletions
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C Fix\sa\sbug\sin\skvtest\scausing\s"init\s--variance\s0"\sruns\sto\sgenerate\ssingle\sbyte\nblob\svalues\sonly.
D 2017-02-06T07:37:50.092
C Add\sthe\s"max-limits"\sutility\sprogram\sto\sthe\stools/\ssubdirectory.
D 2017-02-06T15:27:44.567
F Makefile.in 5f415e7867296d678fed2e6779aea10c1318b4bc
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc ba953c8921fc7e18333f61898007206de7e23964
@ -1485,6 +1485,7 @@ F tool/lempar.c db1bdb4821f2d8fbd76e577cf3ab18642c8d08d1
F tool/libvers.c caafc3b689638a1d88d44bc5f526c2278760d9b9
F tool/loadfts.c c3c64e4d5e90e8ba41159232c2189dba4be7b862
F tool/logest.c 11346aa019e2e77a00902aa7d0cabd27bd2e8cca
F tool/max-limits.c cbb635fbb37ae4d05f240bfb5b5270bb63c54439
F tool/mkautoconfamal.sh e855df211ecbcc7131dee817110ff386cfb112f7
F tool/mkkeywordhash.c f7f3b342211ac6a14258b9726d5b97cf4f548f22
F tool/mkmsvcmin.tcl 2f12f7fa8858bbe61cf81820a2da96c79ed1ca8d
@ -1553,7 +1554,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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c54173b6c1acbb41ed9c323099e94b8e02c6c895

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/*
** 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);
}
}