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Overview
| Comment: | Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | zipvfs-multifile-commit |
| Files: | files | file ages | folders |
| SHA1: |
32fb1784af4594161d954343e3787db7 |
| User & Date: | dan 2013-12-09 20:42:03 |
Context
|
2013-12-10
| ||
| 16:27 | Fix handling of errors returned by the SQLITE_FCNTL_OMIT_SYNCED file-control. check-in: d9a5f44f user: dan tags: zipvfs-multifile-commit | |
|
2013-12-09
| ||
| 20:42 | Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. check-in: 32fb1784 user: dan tags: zipvfs-multifile-commit | |
| 12:24 | Fix an incorrect test number in the output of the speedtest1.c program. No changes to the test algorithms. check-in: fbfc075a user: drh tags: trunk | |
Changes
Changes to src/backup.c.
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}
if( rc==SQLITE_OK ){
rc = backupTruncateFile(pFile, iSize);
}
/* Sync the database file to disk. */
if( rc==SQLITE_OK ){
rc = sqlite3PagerSync(pDestPager);
}
}else{
sqlite3PagerTruncateImage(pDestPager, nDestTruncate);
rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 0);
}
/* Finish committing the transaction to the destination database. */
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}
if( rc==SQLITE_OK ){
rc = backupTruncateFile(pFile, iSize);
}
/* Sync the database file to disk. */
if( rc==SQLITE_OK ){
rc = sqlite3PagerSync(pDestPager, 0);
}
}else{
sqlite3PagerTruncateImage(pDestPager, nDestTruncate);
rc = sqlite3PagerCommitPhaseOne(pDestPager, 0, 0);
}
/* Finish committing the transaction to the destination database. */
|
Changes to src/pager.c.
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unsigned char aMagic[8]; /* A buffer to hold the magic header */
zMaster[0] = '\0';
if( SQLITE_OK!=(rc = sqlite3OsFileSize(pJrnl, &szJ))
|| szJ<16
|| SQLITE_OK!=(rc = read32bits(pJrnl, szJ-16, &len))
|| len>=nMaster
|| SQLITE_OK!=(rc = read32bits(pJrnl, szJ-12, &cksum))
|| SQLITE_OK!=(rc = sqlite3OsRead(pJrnl, aMagic, 8, szJ-8))
|| memcmp(aMagic, aJournalMagic, 8)
|| SQLITE_OK!=(rc = sqlite3OsRead(pJrnl, zMaster, len, szJ-16-len))
){
return rc;
}
................................................................................
** At this point the journal has been finalized and the transaction
** successfully committed, but the EXCLUSIVE lock is still held on the
** file. So it is safe to truncate the database file to its minimum
** required size. */
assert( pPager->eLock==EXCLUSIVE_LOCK );
rc = pager_truncate(pPager, pPager->dbSize);
}
if( !pPager->exclusiveMode
&& (!pagerUseWal(pPager) || sqlite3WalExclusiveMode(pPager->pWal, 0))
){
rc2 = pagerUnlockDb(pPager, SHARED_LOCK);
pPager->changeCountDone = 0;
}
................................................................................
zMaster = pPager->pTmpSpace;
rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1);
testcase( rc!=SQLITE_OK );
}
if( rc==SQLITE_OK
&& (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN)
){
rc = sqlite3PagerSync(pPager);
}
if( rc==SQLITE_OK ){
rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0);
testcase( rc!=SQLITE_OK );
}
if( rc==SQLITE_OK && zMaster[0] && res ){
/* If there was a master journal and this routine will return success,
................................................................................
/*
** Sync the database file to disk. This is a no-op for in-memory databases
** or pages with the Pager.noSync flag set.
**
** 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 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;
}
/*
** This function may only be called while a write-transaction is active in
** rollback. If the connection is in WAL mode, this call is a no-op.
................................................................................
assert( pPager->eState==PAGER_WRITER_DBMOD );
rc = pager_truncate(pPager, nNew);
if( rc!=SQLITE_OK ) goto commit_phase_one_exit;
}
/* Finally, sync the database file. */
if( !noSync ){
rc = sqlite3PagerSync(pPager);
}
IOTRACE(("DBSYNC %p\n", pPager))
}
}
commit_phase_one_exit:
if( rc==SQLITE_OK && !pagerUseWal(pPager) ){
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unsigned char aMagic[8]; /* A buffer to hold the magic header */ zMaster[0] = '\0'; if( SQLITE_OK!=(rc = sqlite3OsFileSize(pJrnl, &szJ)) || 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) || SQLITE_OK!=(rc = sqlite3OsRead(pJrnl, zMaster, len, szJ-16-len)) ){ return rc; } ................................................................................ ** At this point the journal has been finalized and the transaction ** successfully committed, but the EXCLUSIVE lock is still held on the ** file. So it is safe to truncate the database file to its minimum ** required size. */ assert( pPager->eLock==EXCLUSIVE_LOCK ); 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)) ){ rc2 = pagerUnlockDb(pPager, SHARED_LOCK); pPager->changeCountDone = 0; } ................................................................................ zMaster = pPager->pTmpSpace; rc = readMasterJournal(pPager->jfd, zMaster, pPager->pVfs->mxPathname+1); testcase( rc!=SQLITE_OK ); } if( rc==SQLITE_OK && (pPager->eState>=PAGER_WRITER_DBMOD || pPager->eState==PAGER_OPEN) ){ rc = sqlite3PagerSync(pPager, 0); } if( rc==SQLITE_OK ){ rc = pager_end_transaction(pPager, zMaster[0]!='\0', 0); testcase( rc!=SQLITE_OK ); } if( rc==SQLITE_OK && zMaster[0] && res ){ /* If there was a master journal and this routine will return success, ................................................................................ /* ** Sync the database file to disk. This is a no-op for in-memory databases ** or pages with the Pager.noSync flag set. ** ** 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, 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); } return rc; } /* ** This function may only be called while a write-transaction is active in ** rollback. If the connection is in WAL mode, this call is a no-op. ................................................................................ assert( pPager->eState==PAGER_WRITER_DBMOD ); rc = pager_truncate(pPager, nNew); if( rc!=SQLITE_OK ) goto commit_phase_one_exit; } /* Finally, sync the database file. */ if( !noSync ){ rc = sqlite3PagerSync(pPager, zMaster); } IOTRACE(("DBSYNC %p\n", pPager)) } } commit_phase_one_exit: if( rc==SQLITE_OK && !pagerUseWal(pPager) ){ |
Changes to src/pager.h.
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void *sqlite3PagerGetExtra(DbPage *); /* Functions used to manage pager transactions and savepoints. */ void sqlite3PagerPagecount(Pager*, int*); int sqlite3PagerBegin(Pager*, int exFlag, int); int sqlite3PagerCommitPhaseOne(Pager*,const char *zMaster, int); int sqlite3PagerExclusiveLock(Pager*); int sqlite3PagerSync(Pager *pPager); int sqlite3PagerCommitPhaseTwo(Pager*); int sqlite3PagerRollback(Pager*); int sqlite3PagerOpenSavepoint(Pager *pPager, int n); int sqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint); int sqlite3PagerSharedLock(Pager *pPager); #ifndef SQLITE_OMIT_WAL |
| |
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void *sqlite3PagerGetExtra(DbPage *);
/* Functions used to manage pager transactions and savepoints. */
void sqlite3PagerPagecount(Pager*, int*);
int sqlite3PagerBegin(Pager*, int exFlag, int);
int sqlite3PagerCommitPhaseOne(Pager*,const char *zMaster, int);
int sqlite3PagerExclusiveLock(Pager*);
int sqlite3PagerSync(Pager *pPager, const char *zMaster);
int sqlite3PagerCommitPhaseTwo(Pager*);
int sqlite3PagerRollback(Pager*);
int sqlite3PagerOpenSavepoint(Pager *pPager, int n);
int sqlite3PagerSavepoint(Pager *pPager, int op, int iSavepoint);
int sqlite3PagerSharedLock(Pager *pPager);
#ifndef SQLITE_OMIT_WAL
|
Changes to src/sqlite.h.in.
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#define SQLITE_FCNTL_POWERSAFE_OVERWRITE 13 #define SQLITE_FCNTL_PRAGMA 14 #define SQLITE_FCNTL_BUSYHANDLER 15 #define SQLITE_FCNTL_TEMPFILENAME 16 #define SQLITE_FCNTL_MMAP_SIZE 18 #define SQLITE_FCNTL_TRACE 19 #define SQLITE_FCNTL_HAS_MOVED 20 /* ** CAPI3REF: Mutex Handle ** ** The mutex module within SQLite defines [sqlite3_mutex] to be an ** abstract type for a mutex object. The SQLite core never looks ** at the internal representation of an [sqlite3_mutex]. It only |
> > |
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#define SQLITE_FCNTL_POWERSAFE_OVERWRITE 13
#define SQLITE_FCNTL_PRAGMA 14
#define SQLITE_FCNTL_BUSYHANDLER 15
#define SQLITE_FCNTL_TEMPFILENAME 16
#define SQLITE_FCNTL_MMAP_SIZE 18
#define SQLITE_FCNTL_TRACE 19
#define SQLITE_FCNTL_HAS_MOVED 20
#define SQLITE_FCNTL_COMMIT_PHASETWO 21
/*
** CAPI3REF: Mutex Handle
**
** The mutex module within SQLite defines [sqlite3_mutex] to be an
** abstract type for a mutex object. The SQLite core never looks
** at the internal representation of an [sqlite3_mutex]. It only
|
Changes to src/test6.c.
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static int cfRead(
sqlite3_file *pFile,
void *zBuf,
int iAmt,
sqlite_int64 iOfst
){
CrashFile *pCrash = (CrashFile *)pFile;
/* Check the file-size to see if this is a short-read */
if( pCrash->iSize<(iOfst+iAmt) ){
return SQLITE_IOERR_SHORT_READ;
}
memcpy(zBuf, &pCrash->zData[iOfst], iAmt);
return SQLITE_OK;
}
/*
** Write data to a crash-file.
*/
static int cfWrite(
|
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static int cfRead(
sqlite3_file *pFile,
void *zBuf,
int iAmt,
sqlite_int64 iOfst
){
CrashFile *pCrash = (CrashFile *)pFile;
int nCopy = (int)MIN((i64)iAmt, (pCrash->iSize - iOfst));
if( nCopy>0 ){
memcpy(zBuf, &pCrash->zData[iOfst], nCopy);
}
/* Check the file-size to see if this is a short-read */
if( nCopy<iAmt ){
return SQLITE_IOERR_SHORT_READ;
}
return SQLITE_OK;
}
/*
** Write data to a crash-file.
*/
static int cfWrite(
|
Changes to test/tester.tcl.
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# crashsql -delay CRASHDELAY -file CRASHFILE ?-blocksize BLOCKSIZE? $sql
#
proc crashsql {args} {
set blocksize ""
set crashdelay 1
set prngseed 0
set tclbody {}
set crashfile ""
set dc ""
set sql [lindex $args end]
for {set ii 0} {$ii < [llength $args]-1} {incr ii 2} {
set z [lindex $args $ii]
set n [string length $z]
set z2 [lindex $args [expr $ii+1]]
if {$n>1 && [string first $z -delay]==0} {set crashdelay $z2} \
elseif {$n>1 && [string first $z -seed]==0} {set prngseed $z2} \
elseif {$n>1 && [string first $z -file]==0} {set crashfile $z2} \
elseif {$n>1 && [string first $z -tclbody]==0} {set tclbody $z2} \
elseif {$n>1 && [string first $z -blocksize]==0} {set blocksize "-s $z2" } \
elseif {$n>1 && [string first $z -characteristics]==0} {set dc "-c {$z2}" } \
else { error "Unrecognized option: $z" }
}
................................................................................
# default, so here we force it to the "nativename" format.
set cfile [string map {\\ \\\\} [file nativename [file join [get_pwd] $crashfile]]]
set f [open crash.tcl w]
puts $f "sqlite3_crash_enable 1"
puts $f "sqlite3_crashparams $blocksize $dc $crashdelay $cfile"
puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
puts $f "sqlite3 db test.db -vfs crash"
# This block sets the cache size of the main database to 10
# pages. This is done in case the build is configured to omit
# "PRAGMA cache_size".
puts $f {db eval {SELECT * FROM sqlite_master;}}
puts $f {set bt [btree_from_db db]}
puts $f {btree_set_cache_size $bt 10}
if {$prngseed} {
set seed [expr {$prngseed%10007+1}]
# puts seed=$seed
puts $f "db eval {SELECT randomblob($seed)}"
}
if {[string length $tclbody]>0} {
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# crashsql -delay CRASHDELAY -file CRASHFILE ?-blocksize BLOCKSIZE? $sql
#
proc crashsql {args} {
set blocksize ""
set crashdelay 1
set prngseed 0
set opendb { sqlite3 db test.db -vfs crash }
set tclbody {}
set crashfile ""
set dc ""
set sql [lindex $args end]
for {set ii 0} {$ii < [llength $args]-1} {incr ii 2} {
set z [lindex $args $ii]
set n [string length $z]
set z2 [lindex $args [expr $ii+1]]
if {$n>1 && [string first $z -delay]==0} {set crashdelay $z2} \
elseif {$n>1 && [string first $z -opendb]==0} {set opendb $z2} \
elseif {$n>1 && [string first $z -seed]==0} {set prngseed $z2} \
elseif {$n>1 && [string first $z -file]==0} {set crashfile $z2} \
elseif {$n>1 && [string first $z -tclbody]==0} {set tclbody $z2} \
elseif {$n>1 && [string first $z -blocksize]==0} {set blocksize "-s $z2" } \
elseif {$n>1 && [string first $z -characteristics]==0} {set dc "-c {$z2}" } \
else { error "Unrecognized option: $z" }
}
................................................................................
# default, so here we force it to the "nativename" format.
set cfile [string map {\\ \\\\} [file nativename [file join [get_pwd] $crashfile]]]
set f [open crash.tcl w]
puts $f "sqlite3_crash_enable 1"
puts $f "sqlite3_crashparams $blocksize $dc $crashdelay $cfile"
puts $f "sqlite3_test_control_pending_byte $::sqlite_pending_byte"
puts $f $opendb
# This block sets the cache size of the main database to 10
# pages. This is done in case the build is configured to omit
# "PRAGMA cache_size".
puts $f {db eval {SELECT * FROM sqlite_master;}}
puts $f {set bt [btree_from_db db]}
puts $f {btree_set_cache_size $bt 10}
if {$prngseed} {
set seed [expr {$prngseed%10007+1}]
# puts seed=$seed
puts $f "db eval {SELECT randomblob($seed)}"
}
if {[string length $tclbody]>0} {
|