Make sure all virtual table cursors have been closed on a prepared statement

prior to unlinking the perpared statement from its database connection.

FossilOrigin-Name: f7c5abe8739090db0738d2c7002a0d71f76c927e

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\sbug\sin\sfts3\scausing\sit\sto\sreturn\sSQLITE_NOMEM\swhen\sNEAR,\sOR\sand\ssome\sauxiliary\sfunctions\swere\sused\stogether.\sAlso\sa\ssegfault\sin\svtab.c\sthat\scould\sfollow\san\sOOM\scondition.
+C Make\ssure\sall\svirtual\stable\scursors\shave\sbeen\sclosed\son\sa\sprepared\sstatement\nprior\sto\sunlinking\sthe\sperpared\sstatement\sfrom\sits\sdatabase\sconnection.
-D 2012-10-25T19:25:39.022
+D 2012-10-26T00:11:23.970
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5f4f26109f9d80829122e0e09f9cda008fa065fb
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -181,7 +181,7 @@ F src/sqlite3.rc fea433eb0a59f4c9393c8e6d76a6e2596b1fe0c0
 F src/sqlite3ext.h 6904f4aadf976f95241311fbffb00823075d9477
 F src/sqliteInt.h b49674b1c92173e9796c94fd6f15c1679e3b10cc
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
-F src/status.c 35939e7e03abf1b7577ce311f48f682c40de3208
+F src/status.c 53463144deb5dfac0a66b3be4dd7844b8f8a4c98
 F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
 F src/tclsqlite.c 515abd8e33e82aa330eeb54675185a7e1e5b6778
 F src/test1.c 936afc02766403e5debca49a1817a780e116df7e
@@ -237,10 +237,10 @@ F src/utf.c 8d819e2e5104a430fc2005f018db14347c95a38f
 F src/util.c 0af2e515dc0dabacec931bca39525f6c3f1c5455
 F src/vacuum.c 2727bdd08847fcb6b2d2da6d14f018910e8645d3
 F src/vdbe.c 31523df2b986fc6c959dd54ca640ba865884641b
-F src/vdbe.h 18f581cac1f4339ec3299f3e0cc6e11aec654cdb
+F src/vdbe.h b52887278cb173e66188da84dfab216bea61119d
 F src/vdbeInt.h 573a43ab5697b648a1e8f3dfc7d8667d5ca55729
 F src/vdbeapi.c 4c2418161cf45392ba76a7ca92f9a5f06b96f89c
-F src/vdbeaux.c 674e969e026d1af1938942eba17071127839fc15
+F src/vdbeaux.c 8c8cfd30063e9b3664e2faa0e3785102bf131a10
 F src/vdbeblob.c 32f2a4899d67f69634ea4dd93e3f651936d732cb
 F src/vdbemem.c cb55e84b8e2c15704968ee05f0fae25883299b74
 F src/vdbesort.c 0dc1b274dcb4d4c8e71b0b2b15261f286caba39b
@@ -1021,7 +1021,10 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/win/sqlite.vsix 67d8a99aceb56384a81b3f30d6c71743146d2cc9
-P a6d906cfeb9b181fd5b88df3650bab7ee1a24c0b
+P 33f4f9817e8b3cb97ce02a4c49bd586332da37b2
-R 674e19925b07366510d1fc7375732e22
+R bc72b67b42140060c43fae49b44a7daa
-U dan
+T *branch * deferred-close-order
-Z 1032beb5eac48ad97bee39ee66a1a525
+T *sym-deferred-close-order *
+T -sym-trunk *
+U drh
+Z 48246a4a15ab765f01b398ae16f882b2

manifest.uuid

@@ -1 +1 @@
-33f4f9817e8b3cb97ce02a4c49bd586332da37b2
+f7c5abe8739090db0738d2c7002a0d71f76c927e

src/status.c

@@ -208,7 +208,7 @@ int sqlite3_db_status(
 
       db->pnBytesFreed = &nByte;
       for(pVdbe=db->pVdbe; pVdbe; pVdbe=pVdbe->pNext){
-        sqlite3VdbeDeleteObject(db, pVdbe);
+        sqlite3VdbeClearObject(db, pVdbe);
       }
       db->pnBytesFreed = 0;
 

src/vdbe.h

@@ -188,7 +188,7 @@ VdbeOp *sqlite3VdbeGetOp(Vdbe*, int);
 int sqlite3VdbeMakeLabel(Vdbe*);
 void sqlite3VdbeRunOnlyOnce(Vdbe*);
 void sqlite3VdbeDelete(Vdbe*);
-void sqlite3VdbeDeleteObject(sqlite3*,Vdbe*);
+void sqlite3VdbeClearObject(sqlite3*,Vdbe*);
 void sqlite3VdbeMakeReady(Vdbe*,Parse*);
 int sqlite3VdbeFinalize(Vdbe*);
 void sqlite3VdbeResolveLabel(Vdbe*, int);

src/vdbeaux.c

@@ -2434,12 +2434,14 @@ void sqlite3VdbeDeleteAuxData(VdbeFunc *pVdbeFunc, int mask){
 }
 
 /*
-** Free all memory associated with the Vdbe passed as the second argument.
+** Free all memory associated with the Vdbe passed as the second argument,
+** except for object itself, which is preserved.
+**
 ** The difference between this function and sqlite3VdbeDelete() is that
 ** VdbeDelete() also unlinks the Vdbe from the list of VMs associated with
-** the database connection.
+** the database connection and frees the object itself.
 */
-void sqlite3VdbeDeleteObject(sqlite3 *db, Vdbe *p){
+void sqlite3VdbeClearObject(sqlite3 *db, Vdbe *p){
   SubProgram *pSub, *pNext;
   int i;
   assert( p->db==0 || p->db==db );
@@ -2460,7 +2462,6 @@ void sqlite3VdbeDeleteObject(sqlite3 *db, Vdbe *p){
   sqlite3DbFree(db, p->zExplain);
   sqlite3DbFree(db, p->pExplain);
 #endif
-  sqlite3DbFree(db, p);
 }
 
 /*
@@ -2472,6 +2473,7 @@ void sqlite3VdbeDelete(Vdbe *p){
   if( NEVER(p==0) ) return;
   db = p->db;
   assert( sqlite3_mutex_held(db->mutex) );
+  sqlite3VdbeClearObject(db, p);
   if( p->pPrev ){
     p->pPrev->pNext = p->pNext;
   }else{
@@ -2483,7 +2485,7 @@ void sqlite3VdbeDelete(Vdbe *p){
   }
   p->magic = VDBE_MAGIC_DEAD;
   p->db = 0;
-  sqlite3VdbeDeleteObject(db, p);
+  sqlite3DbFree(db, p);
 }
 
 /*