From 104a7bba8cae6ca5410d6b0ce3c72a552a1bdde8 Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Sat, 15 Jan 2011 17:12:59 +0000
Subject: [PATCH] Increment the change counter and update the SQLite version
 number whenever page 1 is added to the WAL.  Ticket [5d863f876ee9561b9]

FossilOrigin-Name: c1e0d09cd3f5feae123468a35f147021d839641c
---
 manifest           | 28 +++++++++++++++++++---------
 manifest.uuid      |  2 +-
 src/pager.c        | 28 ++++++++++++++++++++++++----
 test/progress.test |  0
 tool/mkopts.tcl    |  0
 5 files changed, 44 insertions(+), 14 deletions(-)
 mode change 100755 => 100644 test/progress.test
 mode change 100755 => 100644 tool/mkopts.tcl

diff --git a/manifest b/manifest
index e6ffd13c90..86cf2f03fd 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,8 @@
-C Add\sa\stest\scase\sdemonstrating\sthe\sproblem\sdescribed\sby\sticket\s[5d863f876e].
-D 2011-01-15T16:52:11
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA1
+
+C Increment\sthe\schange\scounter\sand\supdate\sthe\sSQLite\sversion\snumber\swhenever\npage\s1\sis\sadded\sto\sthe\sWAL.\s\sTicket\s[5d863f876ee9561b9]
+D 2011-01-15T17:12:59.482
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in de6498556d536ae60bb8bb10e8c1ba011448658c
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -162,7 +165,7 @@ F src/os_common.h a8f95b81eca8a1ab8593d23e94f8a35f35d4078f
 F src/os_os2.c 72d0b2e562952a2464308c4ce5f7913ac10bef3e
 F src/os_unix.c aeaf65d261219ad96c021cfd0672509d83c005e4
 F src/os_win.c 2f90f7bdec714fad51cd31b4ecad3cc1b4bb5aad
-F src/pager.c ceceb5e20d8772cd6a1e3d6eb030fbcb1c052f61
+F src/pager.c 737025a2e7457ae7cfd4fe1f0cc69f69d88b29b4
 F src/pager.h 0ea59db2a33bc6c2c02cae34de33367e1effdf76
 F src/parse.y 12b7ebd61ea54f0e1b1083ff69cc2c8ce9353d58
 F src/pcache.c 09d38c44ab275db581f7a2f6ff8b9bc7f8c0faaa
@@ -589,7 +592,7 @@ F test/permutations.test c0ce0f3b741dd92a6d4c2671dbacba4b92dd81eb
 F test/pragma.test fdfc09067ea104a0c247a1a79d8093b56656f850
 F test/pragma2.test 5364893491b9231dd170e3459bfc2e2342658b47
 F test/printf.test 05970cde31b1a9f54bd75af60597be75a5c54fea
-F test/progress.test 5b075c3c790c7b2a61419bc199db87aaf48b8301 x
+F test/progress.test 5b075c3c790c7b2a61419bc199db87aaf48b8301
 F test/ptrchng.test ef1aa72d6cf35a2bbd0869a649b744e9d84977fc
 F test/quick.test 1681febc928d686362d50057c642f77a02c62e57
 F test/quota.test ddafe133653093eb9a99ccd6264884ae43f9c9b8
@@ -871,7 +874,7 @@ F tool/genfkey.test 4196a8928b78f51d54ef58e99e99401ab2f0a7e5
 F tool/lemon.c dfd81a51b6e27e469ba21d01a75ddf092d429027
 F tool/lempar.c 01ca97f87610d1dac6d8cd96ab109ab1130e76dc
 F tool/mkkeywordhash.c d2e6b4a5965e23afb80fbe74bb54648cd371f309
-F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e x
+F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e
 F tool/mkspeedsql.tcl a1a334d288f7adfe6e996f2e712becf076745c97
 F tool/mksqlite3c.tcl e0db70c2c52b0e3d0867ca931229e5b90ffe7837
 F tool/mksqlite3h.tcl d76c226a5e8e1f3b5f6593bcabe5e98b3b1ec9ff
@@ -896,7 +899,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P 142174640d60e834cae27ccaa78b02ecef8bcfe5
-R d9ef404f44830db11f7a6ed5f8975a1f
-U dan
-Z 690a7330d2f219663b45235869cf7d49
+P af54963f0fa0afafbc2d0847f30543c041b182ec
+R 2e070d9bb52da592e341dbace3cf5d95
+U drh
+Z 2f025605b789f039118b3a16146dfc2d
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1.4.6 (GNU/Linux)
+
+iD8DBQFNMdWfoxKgR168RlERAmfoAJ9Y78wB/3baCsxKX+NyeGTMQLqGDACeOyQw
+/EmrRAxlTmynxXA/PJ4j5Yo=
+=dp+d
+-----END PGP SIGNATURE-----
diff --git a/manifest.uuid b/manifest.uuid
index de402f1acc..e4f2521d70 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-af54963f0fa0afafbc2d0847f30543c041b182ec
\ No newline at end of file
+c1e0d09cd3f5feae123468a35f147021d839641c
\ No newline at end of file
diff --git a/src/pager.c b/src/pager.c
index d65c460afa..297ac99596 100644
--- a/src/pager.c
+++ b/src/pager.c
@@ -2915,11 +2915,17 @@ static int pagerRollbackWal(Pager *pPager){
   return rc;
 }
 
+/* Forward declaration */
+static int pager_incr_changecounter(Pager*,int);
+
 /*
 ** This function is a wrapper around sqlite3WalFrames(). As well as logging
 ** the contents of the list of pages headed by pList (connected by pDirty),
 ** this function notifies any active backup processes that the pages have
-** changed. 
+** changed.
+**
+** The list of pages passed into this routine is always sorted by page number.
+** Hence, if page 1 appears anywhere on the list, it will be the first page.
 */ 
 static int pagerWalFrames(
   Pager *pPager,                  /* Pager object */
@@ -2929,8 +2935,23 @@ static int pagerWalFrames(
   int syncFlags                   /* Flags to pass to OsSync() (or 0) */
 ){
   int rc;                         /* Return code */
+#if defined(SQLITE_DEBUG) || defined(SQLITE_CHECK_PAGES)
+  PgHdr *p;                       /* For looping over pages */
+#endif
 
   assert( pPager->pWal );
+#ifdef SQLITE_DEBUG
+  /* Verify that the page list is in accending order */
+  for(p=pList; p && p->pDirty; p=p->pDirty){
+    assert( p->pgno < p->pDirty->pgno );
+  }
+#endif
+
+  if( pList->pgno==1 ){
+    pPager->changeCountDone = 0;
+    pager_incr_changecounter(pPager,0);
+    pPager->changeCountDone = 0;
+  }
   rc = sqlite3WalFrames(pPager->pWal, 
       pPager->pageSize, pList, nTruncate, isCommit, syncFlags
   );
@@ -2942,9 +2963,8 @@ static int pagerWalFrames(
   }
 
 #ifdef SQLITE_CHECK_PAGES
-  {
-    PgHdr *p;
-    for(p=pList; p; p=p->pDirty) pager_set_pagehash(p);
+  for(p=pList; p; p=p->pDirty){
+    pager_set_pagehash(p);
   }
 #endif
 
diff --git a/test/progress.test b/test/progress.test
old mode 100755
new mode 100644
diff --git a/tool/mkopts.tcl b/tool/mkopts.tcl
old mode 100755
new mode 100644