diff options
Diffstat (limited to 'lib/libsqlite3/src/pragma.c')
| -rw-r--r-- | lib/libsqlite3/src/pragma.c | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/lib/libsqlite3/src/pragma.c b/lib/libsqlite3/src/pragma.c index 9ed5e13eb0f..543f265ba9e 100644 --- a/lib/libsqlite3/src/pragma.c +++ b/lib/libsqlite3/src/pragma.c @@ -61,14 +61,15 @@ #define PragTyp_TABLE_INFO 30 #define PragTyp_TEMP_STORE 31 #define PragTyp_TEMP_STORE_DIRECTORY 32 -#define PragTyp_WAL_AUTOCHECKPOINT 33 -#define PragTyp_WAL_CHECKPOINT 34 -#define PragTyp_ACTIVATE_EXTENSIONS 35 -#define PragTyp_HEXKEY 36 -#define PragTyp_KEY 37 -#define PragTyp_REKEY 38 -#define PragTyp_LOCK_STATUS 39 -#define PragTyp_PARSER_TRACE 40 +#define PragTyp_THREADS 33 +#define PragTyp_WAL_AUTOCHECKPOINT 34 +#define PragTyp_WAL_CHECKPOINT 35 +#define PragTyp_ACTIVATE_EXTENSIONS 36 +#define PragTyp_HEXKEY 37 +#define PragTyp_KEY 38 +#define PragTyp_REKEY 39 +#define PragTyp_LOCK_STATUS 40 +#define PragTyp_PARSER_TRACE 41 #define PragFlag_NeedSchema 0x01 static const struct sPragmaNames { const char *const zName; /* Name of pragma */ @@ -418,6 +419,10 @@ static const struct sPragmaNames { /* ePragFlag: */ 0, /* iArg: */ 0 }, #endif + { /* zName: */ "threads", + /* ePragTyp: */ PragTyp_THREADS, + /* ePragFlag: */ 0, + /* iArg: */ 0 }, #if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS) { /* zName: */ "user_version", /* ePragTyp: */ PragTyp_HEADER_VALUE, @@ -465,7 +470,7 @@ static const struct sPragmaNames { /* iArg: */ SQLITE_WriteSchema|SQLITE_RecoveryMode }, #endif }; -/* Number of pragmas: 56 on by default, 69 total. */ +/* Number of pragmas: 57 on by default, 70 total. */ /* End of the automatically generated pragma table. ***************************************************************************/ @@ -1392,6 +1397,12 @@ void sqlite3Pragma( ** in auto-commit mode. */ mask &= ~(SQLITE_ForeignKeys); } +#if SQLITE_USER_AUTHENTICATION + if( db->auth.authLevel==UAUTH_User ){ + /* Do not allow non-admin users to modify the schema arbitrarily */ + mask &= ~(SQLITE_WriteSchema); + } +#endif if( sqlite3GetBoolean(zRight, 0) ){ db->flags |= mask; @@ -2273,6 +2284,26 @@ void sqlite3Pragma( break; } + /* + ** PRAGMA threads + ** PRAGMA threads = N + ** + ** Configure the maximum number of worker threads. Return the new + ** maximum, which might be less than requested. + */ + case PragTyp_THREADS: { + sqlite3_int64 N; + if( zRight + && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK + && N>=0 + ){ + sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, (int)(N&0x7fffffff)); + } + returnSingleInt(pParse, "threads", + sqlite3_limit(db, SQLITE_LIMIT_WORKER_THREADS, -1)); + break; + } + #if defined(SQLITE_DEBUG) || defined(SQLITE_TEST) /* ** Report the current state of file logs for all databases |