contrib/sqlite3/sqlite3.c

7009 ** cache implementation should use the value of the createFlag
7013 ** <tr><th> createFlag <th> Behavior when page is not already in cache
7021 ** ^(SQLite will normally invoke xFetch() with a createFlag of 0 or 1.  SQLite
7022 ** will only use a createFlag of 2 after a prior call with a createFlag of 1
7075   sqlite3_pcache_page *(*xFetch)(sqlite3_pcache*, unsigned key, int createFlag);
7097   void *(*xFetch)(sqlite3_pcache*, unsigned key, int createFlag);
9471 SQLITE_PRIVATE int sqlite3PcacheFetch(PCache*, Pgno, int createFlag, PgHdr**);
36257   int createFlag,       /* If true, create page if it does not exist already */
36265   assert( createFlag==1 || createFlag==0 );
36271   if( !pCache->pCache && createFlag ){
36283   eCreate = createFlag * (1 + (!pCache->bPurgeable || !pCache->pDirty));
37325 ** the value of the createFlag argument.  0 means do not allocate a new
37330 ** database) there is really no difference between createFlag 1 and 2.  So
37331 ** the calling function (pcache.c) will never have a createFlag of 1 on
37335 ** depending on the value of parameter createFlag (which may be 0, 1 or 2).
37337 **   1. Regardless of the value of createFlag, the cache is searched for a
37340 **   2. If createFlag==0 and the page is not already in the cache, NULL is
37343 **   3. If createFlag is 1, and the page is not already in the cache, then
37376   int createFlag
37383   assert( pCache->bPurgeable || createFlag!=1 );
37395   /* Step 2: Abort if no existing page is found and createFlag is 0 */
37396   if( pPage || createFlag==0 ){
37412   /* Step 3: Abort if createFlag is 1 but the cache is nearly full */
37417   if( createFlag==1 && (
37460     if( createFlag==1 ) sqlite3BeginBenignMalloc();
37462     if( createFlag==1 ) sqlite3EndBenignMalloc();
40010   /* It is not possible for a call to PcacheFetch() with createFlag==0 to
42716   ** is impossible for sqlite3PcacheFetch() to be called with createFlag==1
86351 ** If the createFlag argument is true, then a new (blank) FuncDef
86358 ** of arguments.  If nArg is -2, then createFlag must be 0.
86360 ** If createFlag is false, then a function with the required name and
86370   u8 createFlag      /* Create new entry if true and does not otherwise exist */
86378   assert( nArg>=(-1) || createFlag==0 );
86400   ** Except, if createFlag is true, that means that we are trying to
86406   if( !createFlag && (pBest==0 || (db->flags & SQLITE_PreferBuiltin)!=0) ){
86420   /* If the createFlag parameter is true and the search did not reveal an
86424   if( createFlag && bestScore<FUNC_PERFECT_MATCH &&
86434   if( pBest && (pBest->xStep || pBest->xFunc || createFlag) ){