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Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension.

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FossilOrigin-Name: 32fb1784af4594161d954343e3787db702000a4d
This commit is contained in:
dan
2013-12-09 20:42:03 +00:00
parent 195134c6c3
commit 999cd08aae
8 changed files with 45 additions and 27 deletions
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24
src/pager.c
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@@ -1249,6 +1249,7 @@ static int readMasterJournal(sqlite3_file *pJrnl, char *zMaster, u32 nMaster){
|| szJ<16
|| SQLITE_OK!=(rc = read32bits(pJrnl, szJ-16, &len))
|| len>=nMaster
|| len==0
|| SQLITE_OK!=(rc = read32bits(pJrnl, szJ-12, &cksum))
|| SQLITE_OK!=(rc = sqlite3OsRead(pJrnl, aMagic, 8, szJ-8))
|| memcmp(aMagic, aJournalMagic, 8)
@@ -2018,6 +2019,11 @@ static int pager_end_transaction(Pager *pPager, int hasMaster, int bCommit){
rc = pager_truncate(pPager, pPager->dbSize);
}
if( rc==SQLITE_OK && bCommit && isOpen(pPager->fd) ){
rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_COMMIT_PHASETWO, 0);
if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
}
if( !pPager->exclusiveMode
&& (!pagerUseWal(pPager) || sqlite3WalExclusiveMode(pPager->pWal, 0))
){
@@ -2831,7 +2837,7 @@ end_playback:
if( rc==SQLITE_OK
&& (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN)
){
rc = sqlite3PagerSync(pPager);
rc = sqlite3PagerSync(pPager, 0);
}
if( rc==SQLITE_OK ){
rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0);
@@ -6006,17 +6012,17 @@ static int pager_incr_changecounter(Pager *pPager, int isDirectMode){
** If successful, or if called on a pager for which it is a no-op, this
** function returns SQLITE_OK. Otherwise, an IO error code is returned.
*/
int sqlite3PagerSync(Pager *pPager){
int sqlite3PagerSync(Pager *pPager, const char *zMaster){
int rc = SQLITE_OK;
if( isOpen(pPager->fd) ){
void *pArg = (void*)zMaster;
rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_SYNC_OMITTED, pArg);
if( rc==SQLITE_NOTFOUND ) rc = SQLITE_OK;
}
if( !pPager->noSync ){
assert( !MEMDB );
rc = sqlite3OsSync(pPager->fd, pPager->syncFlags);
}else if( isOpen(pPager->fd) ){
assert( !MEMDB );
rc = sqlite3OsFileControl(pPager->fd, SQLITE_FCNTL_SYNC_OMITTED, 0);
if( rc==SQLITE_NOTFOUND ){
rc = SQLITE_OK;
}
}
return rc;
}
@@ -6215,7 +6221,7 @@ int sqlite3PagerCommitPhaseOne(
/* Finally, sync the database file. */
if( !noSync ){
rc = sqlite3PagerSync(pPager);
rc = sqlite3PagerSync(pPager, zMaster);
}
IOTRACE(("DBSYNC %p\n", pPager))
}