Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Always sync the journal file after zeroing out the header. (CVS 5036) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
5896ae3d68d29dc172c027c72aa2a98c |
| User & Date: | drh 2008-04-22 17:15:18 |
Context
|
2008-04-23
| ||
| 23:03 | We should better not pass open file handles to child processes, so add respective flag for DosOpen(). (CVS 5037) (check-in: 1518e854 user: pweilbacher tags: trunk) | |
|
2008-04-22
| ||
| 17:15 | Always sync the journal file after zeroing out the header. (CVS 5036) (check-in: 5896ae3d user: drh tags: trunk) | |
| 14:31 | Avoid non-contiguous writes when creating a journal header. (CVS 5035) (check-in: dfacddbb user: danielk1977 tags: trunk) | |
Changes
Changes to src/pager.c.
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
...
968
969
970
971
972
973
974
975
976
977
978
979
980
981
|
** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.432 2008/04/22 14:31:48 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include <assert.h> #include <string.h> /* ................................................................................ */ static int zeroJournalHdr(Pager *pPager){ int rc; static const char zeroHdr[28]; IOTRACE(("JZEROHDR %p\n", pPager)) rc = sqlite3OsWrite(pPager->jfd, zeroHdr, sizeof(zeroHdr), 0); return rc; } /* ** The journal file must be open when this routine is called. A journal ** header (JOURNAL_HDR_SZ bytes) is written into the journal file at the ** current location. |
|
>
>
>
|
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
...
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
|
** The pager is used to access a database disk file. It implements ** atomic commit and rollback through the use of a journal file that ** is separate from the database file. The pager also implements file ** locking to prevent two processes from writing the same database ** file simultaneously, or one process from reading the database while ** another is writing. ** ** @(#) $Id: pager.c,v 1.433 2008/04/22 17:15:18 drh Exp $ */ #ifndef SQLITE_OMIT_DISKIO #include "sqliteInt.h" #include <assert.h> #include <string.h> /* ................................................................................ */ static int zeroJournalHdr(Pager *pPager){ int rc; static const char zeroHdr[28]; IOTRACE(("JZEROHDR %p\n", pPager)) rc = sqlite3OsWrite(pPager->jfd, zeroHdr, sizeof(zeroHdr), 0); if( rc==SQLITE_OK ){ rc = sqlite3OsSync(pPager->jfd, SQLITE_SYNC_DATAONLY | pPager->sync_flags); } return rc; } /* ** The journal file must be open when this routine is called. A journal ** header (JOURNAL_HDR_SZ bytes) is written into the journal file at the ** current location. |