Ensure the master journal directory is synced. Also, change the master journal

format to store journal file names. (CVS 1583)

FossilOrigin-Name: 73cd0aabb24f7b663c8b55cf5e8fcb34fd48c032

manifest

@@ -1,5 +1,5 @@
-C Update\sthe\sfile\schange\scounter\sjust\sbefore\seach\stransaction\sis\scommitted.\s(CVS\s1582)
-D 2004-06-14T05:10:43
+C Ensure\sthe\smaster\sjournal\sdirectory\sis\ssynced.\sAlso,\schange\sthe\smaster\sjournal\nformat\sto\sstore\sjournal\sfile\snames.\s(CVS\s1583)
+D 2004-06-14T06:03:57
 F Makefile.in ab7b0d5118e2da97bac66be8684a1034e3500f5a
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -26,8 +26,8 @@ F sqlite.def fc4f5734786fe4743cfe2aa98eb2da4b089edb5f
 F sqlite.pc.in 30552343140c53304c2a658c080fbe810cd09ca2
 F src/attach.c 93b8ecec4a8d7b4e9f2479e2327d90c9d01765e8
 F src/auth.c 5c2f0bea4729c98c2be3b69d6b466fc51448fe79
-F src/btree.c 5591068c5ed0e5d65938d41ac9e3fe6f461fdb07
-F src/btree.h 589427ac13bb544d298cd99726e2572a6fe4bdaa
+F src/btree.c 1bed18993e54483de8ff869142e82c48847e1d50
+F src/btree.h 32f96abef464cf8765b23ca669acfe90d191fcc5
 F src/build.c 916a84fa5f8bfd44dbe14c3d7c923dd07ee7373f
 F src/date.c 65b483caeb0e4dd663667d2f927caa058168ebff
 F src/delete.c 911221aadb35d610c84fadb32e71c52990827e58
@@ -48,8 +48,8 @@ F src/os_unix.c 7ece785e36c4ecb57c73db8d374b56912d742c4a
 F src/os_unix.h 1cd6133cf66dea704b8646b70b2dfdcbdd9b3738
 F src/os_win.c d4009586dfd0543ca8956ff0be30f9d23e2cbbdd
 F src/os_win.h 004eec47b1780fcaf07420ddc2072294b698d48c
-F src/pager.c feb44bd0279f77319079c1fddf9be927b052d028
-F src/pager.h ca8f293e1d623a7c628a1c5e0c6cf43d5bbb80bf
+F src/pager.c d42af374b23b50805b42c08cbba5bd70dd73964f
+F src/pager.h bc58d32a9dee464f7268fb68652c130a4216e438
 F src/parse.y 097438674976355a10cf177bd97326c548820b86
 F src/pragma.c e288bd122d3ca41ec2032475abde1ff5fa3095f4
 F src/printf.c 63b15f1ea9fe3daa066bb7430fd20d4a2d717dc8
@@ -75,7 +75,7 @@ F src/vdbe.c e6b6702fb2c2e2702e312f52c2cc08353c580736
 F src/vdbe.h 46f74444a213129bc4b5ce40124dd8ed613b0cde
 F src/vdbeInt.h ffc7b8ed911c5bf804796a768fdb6f0568010fa2
 F src/vdbeapi.c ee350b552fc4c1c695b760f914f69e9c5556e829
-F src/vdbeaux.c 7b45d4934cddcf0fb79feac13c3399165774d35c
+F src/vdbeaux.c d792de3b042ffc49c344e147543af6cf2a3dc5de
 F src/vdbemem.c 34f59988831ea032b7f526c2c73175f9f4c0f3ad
 F src/where.c dda77afaa593cd54e5955ec433076de18faf62f6
 F test/all.test 569a92a8ee88f5300c057cc4a8f50fbbc69a3242
@@ -223,7 +223,7 @@ F www/support.tcl 1801397edd271cc39a2aadd54e701184b5181248
 F www/tclsqlite.tcl 19191cf2a1010eaeff74c51d83fd5f5a4d899075
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 77c5eaa10a9d2e2bb8f89b7434d6e6efbacf35e9
-R 728fa94fee79e66b965ca32e2cd56d1b
+P 4649abcbfd032836b196b5d690ef66e4aa494c45
+R b61789483f3e3746f567ebdec2a394da
 U danielk1977
-Z 982942d9d284a3b9c20e3e9aaf713011
+Z cb4dbe83de3608a128ac6ced61032939

manifest.uuid

@@ -1 +1 @@
-4649abcbfd032836b196b5d690ef66e4aa494c45
+73cd0aabb24f7b663c8b55cf5e8fcb34fd48c032

src/btree.c

@@ -9,7 +9,7 @@
 **    May you share freely, never taking more than you give.
 **
 *************************************************************************
-** $Id: btree.c,v 1.165 2004/06/13 23:07:04 drh Exp $
+** $Id: btree.c,v 1.166 2004/06/14 06:03:57 danielk1977 Exp $
 **
 ** This file implements a external (disk-based) database using BTrees.
 ** For a detailed discussion of BTrees, refer to
@@ -4196,6 +4196,24 @@ const char *sqlite3BtreeGetFilename(Btree *pBt){
   return sqlite3pager_filename(pBt->pPager);
 }
 
+/*
+** Return the pathname of the directory that contains the database file.
+*/
+const char *sqlite3BtreeGetDirname(Btree *pBt){
+  assert( pBt->pPager!=0 );
+  return sqlite3pager_dirname(pBt->pPager);
+}
+
+/*
+** Return the pathname of the journal file for this database. The return
+** value of this routine is the same regardless of whether the journal file
+** has been created or not.
+*/
+const char *sqlite3BtreeGetJournalname(Btree *pBt){
+  assert( pBt->pPager!=0 );
+  return sqlite3pager_journalname(pBt->pPager);
+}
+
 /*
 ** Copy the complete content of pBtFrom into pBtTo.  A transaction
 ** must be active for both files.

src/btree.h

@@ -13,7 +13,7 @@
 ** subsystem.  See comments in the source code for a detailed description
 ** of what each interface routine does.
 **
-** @(#) $Id: btree.h,v 1.53 2004/06/04 06:22:01 danielk1977 Exp $
+** @(#) $Id: btree.h,v 1.54 2004/06/14 06:03:57 danielk1977 Exp $
 */
 #ifndef _BTREE_H_
 #define _BTREE_H_
@@ -59,6 +59,8 @@ int sqlite3BtreeIsInStmt(Btree*);
 int sqlite3BtreeSync(Btree*, const char *zMaster);
 
 const char *sqlite3BtreeGetFilename(Btree *);
+const char *sqlite3BtreeGetDirname(Btree *);
+const char *sqlite3BtreeGetJournalname(Btree *);
 int sqlite3BtreeCopyFile(Btree *, Btree *);
 
 /* The flags parameter to sqlite3BtreeCreateTable can be the bitwise OR

src/pager.c

@@ -18,7 +18,7 @@
 ** file simultaneously, or one process from reading the database while
 ** another is writing.
 **
-** @(#) $Id: pager.c,v 1.125 2004/06/14 05:10:43 danielk1977 Exp $
+** @(#) $Id: pager.c,v 1.126 2004/06/14 06:03:57 danielk1977 Exp $
 */
 #include "os.h"         /* Must be first to enable large file support */
 #include "sqliteInt.h"
@@ -615,30 +615,33 @@ static int pager_delmaster(const char *zMaster){
   rc = sqlite3OsOpenExclusive(zMaster, &master, 0);
   if( rc!=SQLITE_OK ) goto delmaster_out;
   master_open = 1;
-
   rc = sqlite3OsFileSize(&master, &nMasterJournal);
   if( rc!=SQLITE_OK ) goto delmaster_out;
 
   if( nMasterJournal>0 ){
-    char *zDb;
-    zMasterJournal = (char *)sqliteMalloc(nMasterJournal);
+    char *zJournal;
+    char *zMasterPtr;
+    int nMasterPtr;   /* Number of bytes allocated at zMasterPtr */
+
+    /* Load the entire master journal file into space obtained from
+    ** sqliteMalloc() and pointed to by zMasterJournal. 
+    **
+    ** Also allocate an extra (strlen(zMaster)+1) bytes. This space is used
+    ** to load a master-journal filename from some other journal file to
+    ** check if it points at this master journal file.
+    */
+    nMasterPtr = strlen(zMaster) + 1;
+    zMasterJournal = (char *)sqliteMalloc(nMasterJournal) + nMasterPtr;
     if( !zMasterJournal ){
       rc = SQLITE_NOMEM;
       goto delmaster_out;
     }
+    zMasterPtr = &zMasterJournal[nMasterJournal];
     rc = sqlite3OsRead(&master, zMasterJournal, nMasterJournal);
     if( rc!=SQLITE_OK ) goto delmaster_out;
 
-    zDb = zMasterJournal;
-    while( (zDb-zMasterJournal)<nMasterJournal ){
-      char *zJournal = 0;
-      /*** FIX ME:  Store the full journal name in the master journal,
-      **** not just the base database name. ***/
-      sqlite3SetString(&zJournal, zDb, "-journal", 0);
-      if( !zJournal ){
-        rc = SQLITE_NOMEM;
-        goto delmaster_out;
-      }
+    zJournal = zMasterJournal;
+    while( (zJournal-zMasterJournal)<nMasterJournal ){
       if( sqlite3OsFileExists(zJournal) ){
         /* One of the journals pointed to by the master journal exists.
         ** Open it and check if it points at the master journal. If
@@ -649,7 +652,6 @@ static int pager_delmaster(const char *zMaster){
         off_t jsz;
 
         rc = sqlite3OsOpenReadOnly(zJournal, &journal);
-        sqliteFree(zJournal);
         if( rc!=SQLITE_OK ){
           sqlite3OsClose(&journal);
           goto delmaster_out;
@@ -676,26 +678,18 @@ static int pager_delmaster(const char *zMaster){
         if( rc!=SQLITE_OK ) goto delmaster_out;
         rc = read32bits(&journal, (u32*)&nMaster);
         if( rc!=SQLITE_OK ) goto delmaster_out;
-        if( nMaster>0 && nMaster>=strlen(zMaster)+1 ){
-          /*** FIX ME: Consider allocating this space at the same time
-          **** space is allocated for holding the text of the master journal */
-          char *zMasterPtr = (char *)sqliteMalloc(nMaster);
-          if( !zMasterPtr ){
-            rc = SQLITE_NOMEM;
-          }
-          rc = sqlite3OsRead(&journal, zMasterPtr, nMaster);
+        if( nMaster>=nMasterPtr ){
+          rc = sqlite3OsRead(&journal, zMasterPtr, nMasterPtr);
           if( rc!=SQLITE_OK ){
-            sqliteFree(zMasterPtr);
             goto delmaster_out;
           }
-          if( 0==strncmp(zMasterPtr, zMaster, nMaster) ){
+          if( zMasterPtr[nMasterPtr-1]=='\0' && !strcmp(zMasterPtr, zMaster) ){
             /* We have a match. Do not delete the master journal file. */
-            sqliteFree(zMasterPtr);
             goto delmaster_out;
           }
         }
       }
-      zDb += (strlen(zDb)+1);
+      zJournal += (strlen(zJournal)+1);
     }
   }
   
@@ -2634,6 +2628,20 @@ const char *sqlite3pager_filename(Pager *pPager){
   return pPager->zFilename;
 }
 
+/*
+** Return the directory of the database file.
+*/
+const char *sqlite3pager_dirname(Pager *pPager){
+  return pPager->zDirectory;
+}
+
+/*
+** Return the full pathname of the journal file.
+*/
+const char *sqlite3pager_journalname(Pager *pPager){
+  return pPager->zJournal;
+}
+
 /*
 ** Set the codec for this pager
 */

src/pager.h

@@ -13,7 +13,7 @@
 ** subsystem.  The page cache subsystem reads and writes a file a page
 ** at a time and provides a journal for rollback.
 **
-** @(#) $Id: pager.h,v 1.33 2004/06/09 17:37:28 drh Exp $
+** @(#) $Id: pager.h,v 1.34 2004/06/14 06:03:57 danielk1977 Exp $
 */
 
 /*
@@ -99,6 +99,8 @@ void sqlite3pager_dont_write(Pager*, Pgno);
 int *sqlite3pager_stats(Pager*);
 void sqlite3pager_set_safety_level(Pager*,int);
 const char *sqlite3pager_filename(Pager*);
+const char *sqlite3pager_dirname(Pager*);
+const char *sqlite3pager_journalname(Pager*);
 int sqlite3pager_rename(Pager*, const char *zNewName);
 void sqlite3pager_set_codec(Pager*,void(*)(void*,void*,Pgno,int),void*);
 

src/vdbeaux.c

@@ -1061,7 +1061,7 @@ static int vdbeCommit(sqlite *db){
       Btree *pBt = db->aDb[i].pBt;
       if( i==1 ) continue;   /* Ignore the TEMP database */
       if( pBt && sqlite3BtreeIsInTrans(pBt) ){
-        char const *zFile = sqlite3BtreeGetFilename(pBt);
+        char const *zFile = sqlite3BtreeGetJournalname(pBt);
         if( zFile[0]==0 ) continue;  /* Ignore :memory: databases */
         rc = sqlite3OsWrite(&master, zFile, strlen(zFile)+1);
         if( rc!=SQLITE_OK ){
@@ -1073,12 +1073,24 @@ static int vdbeCommit(sqlite *db){
       }
     }
 
-    /* Sync the master journal file */
-    rc = sqlite3OsSync(&master);
-    sqlite3OsClose(&master);
 
-    /* FIXME:  Sync the directory that contains the master journal to
-    ** make sure the i-node is up to date. */
+    /* Sync the master journal file. Before doing this, open the directory
+    ** the master journal file is store in so that it gets synced too.
+    */
+    zMainFile = sqlite3BtreeGetDirname(db->aDb[0].pBt);
+    rc = sqlite3OsOpenDirectory(zMainFile, &master);
+    if( rc!=SQLITE_OK ){
+      sqlite3OsClose(&master);
+      sqlite3OsDelete(zMaster);
+      sqliteFree(zMaster);
+      return rc;
+    }
+    rc = sqlite3OsSync(&master);
+    if( rc!=SQLITE_OK ){
+      sqliteFree(zMaster);
+      return rc;
+    }
+    sqlite3OsClose(&master);
 
     /* Sync all the db files involved in the transaction. The same call
     ** sets the master journal pointer in each individual journal. If