Update the vtab_err test to check for -DSQLITE_MEMDEBUG=1 and skip the tests

if missing.  Pager is more careful to clear its file size cache.  Remove
an assert() in VDBE that might fail on a corrupt database file. (CVS 3547)

FossilOrigin-Name: bf1afd016ad71dac90e58540122108f92e77ce3d

manifest

@@ -1,5 +1,5 @@
-C OS/2\schange:\sadd\ssafeguard\sto\sbe\sable\sto\suse\sSQLite\sloaded\sinto\shigh\smemory\son\sOS/2\swhen\scompiled\swith\sGCC\s3.3\sor\slater.\sCurrently,\sthis\sis\sonly\sused\swhen\sbuilding\swithin\sthe\sMozilla\ssource\stree.\s(CVS\s3546)
-D 2006-12-22T20:33:14
+C Update\sthe\svtab_err\stest\sto\scheck\sfor\s-DSQLITE_MEMDEBUG=1\sand\sskip\sthe\stests\nif\smissing.\s\sPager\sis\smore\scareful\sto\sclear\sits\sfile\ssize\scache.\s\sRemove\nan\sassert()\sin\sVDBE\sthat\smight\sfail\son\sa\scorrupt\sdatabase\sfile.\s(CVS\s3547)
+D 2007-01-02T18:41:55
 F Makefile.in 63a71177ed4355c829229affe11167bd28c85884
 F Makefile.linux-gcc 2d8574d1ba75f129aba2019f0b959db380a90935
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -85,7 +85,7 @@ F src/os_unix.c d4bc8cbe1c0dc330bd55bf7821db5b7dbfbf183e
 F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
 F src/os_win.c ca46001d4ec446885f72d3b7fd6a657136156228
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
-F src/pager.c 814268d5bbd69f30069867142f1d460b8b7ab778
+F src/pager.c 5a153277b050b4fe9db3e3ced6b3a7ad7f19561e
 F src/pager.h 2e6d42f4ae004ae748a037b8468112b851c447a7
 F src/parse.y 2f571c5f6219428d7fb08737db3d113742b1cceb
 F src/pragma.c d0891d3504b6291b506a5ec2226bbf79ffcef003
@@ -121,7 +121,7 @@ F src/update.c 951f95ef044cf6d28557c48dc35cb0711a0b9129
 F src/utf.c 67ecb1032bc0b42c105e88d65ef9d9f626eb0e1f
 F src/util.c 91d4cb189476906639ae611927d939691d1365f6
 F src/vacuum.c b620ffff5a84af88b970894a92bb330bd2b9fc45
-F src/vdbe.c 5a1624c73bed143f3d56d1f0a1a1665763520a99
+F src/vdbe.c 15060804371ab78d44a131061ae85c4c66dfff7c
 F src/vdbe.h 9720cae673359dc2bdcb106285ecf686b7d3ef24
 F src/vdbeInt.h 1ca07f2d7446c90230346aed7fbf990c032460bc
 F src/vdbeapi.c 2d1e6843af8705a1172e54a418d2a3d5febd1dd7
@@ -347,7 +347,7 @@ F test/vtab5.test 9fb8f335651afe8f870011e2f68e5b00c5ad03cd
 F test/vtab6.test ec0036f29f8a803da9935206f2d9d1b6a8026392
 F test/vtab7.test 5f9ef9fb84733e928d5d0267c821072561b198d5
 F test/vtab9.test 87afba55339b0c255e9697fbfb5bfb6120505d9d
-F test/vtab_err.test c07f7665dd90bc757f80f05e7951d826eda9bc48
+F test/vtab_err.test 224cc80ad700797c48b9cd2c1e0bd7a8517d8609
 F test/where.test 8dcc1b1a6f17b6bad2dc6a9917eafe62d4ea57eb
 F test/where2.test 61d5b20d9bedc8788a773bbdc5b2ef887725928e
 F test/where3.test 0a30fe9808b0fa01c46d0fcf4fac0bf6cf75bb30
@@ -423,7 +423,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 87a9ee077aa53f1677667983f4566d61ea68b500
-R a42216e646608933734cf512393db380
-U pweilbacher
-Z 3e70003a2911d5bde37aa6ae5bdd9451
+P 720189b8fafa61e5b712b409e76c368079b4bf96
+R a594a599c63c21c9d19504b49bbf2e77
+U drh
+Z 4cc2942b88b80ed65e59fb32451d8d19

manifest.uuid

@@ -1 +1 @@
-720189b8fafa61e5b712b409e76c368079b4bf96
+bf1afd016ad71dac90e58540122108f92e77ce3d

src/pager.c

@@ -18,7 +18,7 @@
 ** file simultaneously, or one process from reading the database while
 ** another is writing.
 **
-** @(#) $Id: pager.c,v 1.277 2006/12/18 18:34:51 drh Exp $
+** @(#) $Id: pager.c,v 1.278 2007/01/02 18:41:55 drh Exp $
 */
 #ifndef SQLITE_OMIT_DISKIO
 #include "sqliteInt.h"
@@ -930,6 +930,7 @@ static int pager_unwritelock(Pager *pPager){
   pPager->setMaster = 0;
   pPager->needSync = 0;
   pPager->pFirstSynced = pPager->pFirst;
+  pPager->dbSize = -1;
   return rc;
 }
 
@@ -3405,14 +3406,12 @@ int sqlite3pager_commit(Pager *pPager){
     ** if there have been no changes to the database file. */
     assert( pPager->needSync==0 );
     rc = pager_unwritelock(pPager);
-    pPager->dbSize = -1;
     return rc;
   }
   assert( pPager->journalOpen );
   rc = sqlite3pager_sync(pPager, 0, 0);
   if( rc==SQLITE_OK ){
     rc = pager_unwritelock(pPager);
-    pPager->dbSize = -1;
   }
   return rc;
 }
@@ -3470,7 +3469,6 @@ int sqlite3pager_rollback(Pager *pPager){
 
   if( !pPager->dirtyCache || !pPager->journalOpen ){
     rc = pager_unwritelock(pPager);
-    pPager->dbSize = -1;
     return rc;
   }
 

src/vdbe.c

@@ -43,7 +43,7 @@
 ** in this file for details.  If in doubt, do not deviate from existing
 ** commenting and indentation practices when changing or adding code.
 **
-** $Id: vdbe.c,v 1.581 2006/12/20 14:53:38 drh Exp $
+** $Id: vdbe.c,v 1.582 2007/01/02 18:41:55 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -2009,7 +2009,9 @@ case OP_Column: {
         pC->aRow = 0;
       }
     }
-    assert( zRec!=0 || avail>=payloadSize || avail>=9 );
+    /* The following assert is true in all cases accept when
+    ** the database file has been corrupted externally.
+    **    assert( zRec!=0 || avail>=payloadSize || avail>=9 ); */
     szHdrSz = GetVarint((u8*)zData, offset);
 
     /* The KeyFetch() or DataFetch() above are fast and will get the entire

test/vtab_err.test

@@ -9,11 +9,19 @@
 #
 #***********************************************************************
 #
-# $Id: vtab_err.test,v 1.3 2006/08/15 14:21:16 drh Exp $
+# $Id: vtab_err.test,v 1.4 2007/01/02 18:41:58 drh Exp $
 
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 
+# Only run these tests if memory debugging is turned on.
+#
+if {[info command sqlite_malloc_stat]==""} {
+  puts "Skipping vtab_err tests: not compiled with -DSQLITE_MEMDEBUG=1"
+  finish_test
+  return
+}
+
 ifcapable !vtab {
   finish_test
   return