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sync up our in tree sqlite with the 3.3.13 official release. Commit to follow to finish this process on the windows build.

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4351 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris
2007-02-22 22:09:42 +00:00
parent 64133ab31a
commit 5791353cec
118 changed files with 15152 additions and 1229 deletions
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132
libs/sqlite/src/pager.c
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@@ -18,7 +18,7 @@
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.274 2006/10/03 19:05:19 drh Exp $
** @(#) $Id: pager.c,v 1.282 2007/01/05 02:00:47 drh Exp $
*/
#ifndef SQLITE_OMIT_DISKIO
#include "sqliteInt.h"
@@ -31,6 +31,7 @@
** Macros for troubleshooting. Normally turned off
*/
#if 0
#define sqlite3DebugPrintf printf
#define TRACE1(X) sqlite3DebugPrintf(X)
#define TRACE2(X,Y) sqlite3DebugPrintf(X,Y)
#define TRACE3(X,Y,Z) sqlite3DebugPrintf(X,Y,Z)
@@ -350,7 +351,9 @@ static const unsigned char aJournalMagic[] = {
/*
** The default size of a disk sector
*/
#define PAGER_SECTOR_SIZE 512
#ifndef PAGER_SECTOR_SIZE
# define PAGER_SECTOR_SIZE 512
#endif
/*
** Page number PAGER_MJ_PGNO is never used in an SQLite database (it is
@@ -376,8 +379,8 @@ static const unsigned char aJournalMagic[] = {
static int cnt = 0;
if( !pager3_refinfo_enable ) return;
sqlite3DebugPrintf(
"REFCNT: %4d addr=%p nRef=%d\n",
p->pgno, PGHDR_TO_DATA(p), p->nRef
"REFCNT: %4d addr=%p nRef=%-3d total=%d\n",
p->pgno, PGHDR_TO_DATA(p), p->nRef, p->pPager->nRef
);
cnt++; /* Something to set a breakpoint on */
}
@@ -847,6 +850,23 @@ static PgHdr *pager_lookup(Pager *pPager, Pgno pgno){
return p;
}
/*
** Unlock the database file.
**
** Once all locks have been removed from the database file, other
** processes or threads might change the file. So make sure all of
** our internal cache is invalidated.
*/
static void pager_unlock(Pager *pPager){
if( !MEMDB ){
sqlite3OsUnlock(pPager->fd, NO_LOCK);
pPager->dbSize = -1;
}
pPager->state = PAGER_UNLOCK;
assert( pPager->pAll==0 );
}
/*
** Unlock the database and clear the in-memory cache. This routine
** sets the state of the pager back to what it was when it was first
@@ -871,11 +891,9 @@ static void pager_reset(Pager *pPager){
if( pPager->state>=PAGER_RESERVED ){
sqlite3pager_rollback(pPager);
}
sqlite3OsUnlock(pPager->fd, NO_LOCK);
pPager->state = PAGER_UNLOCK;
pPager->dbSize = -1;
pager_unlock(pPager);
pPager->nRef = 0;
assert( pPager->journalOpen==0 );
assert( pPager->errCode || (pPager->journalOpen==0 && pPager->stmtOpen==0) );
}
/*
@@ -927,6 +945,7 @@ static int pager_unwritelock(Pager *pPager){
pPager->setMaster = 0;
pPager->needSync = 0;
pPager->pFirstSynced = pPager->pFirst;
pPager->dbSize = -1;
return rc;
}
@@ -1421,6 +1440,7 @@ static int pager_stmt_playback(Pager *pPager){
if( pPager->state>=PAGER_EXCLUSIVE ){
rc = pager_truncate(pPager, pPager->stmtSize);
}
assert( pPager->state>=PAGER_SHARED );
pPager->dbSize = pPager->stmtSize;
/* Figure out how many records are in the statement journal.
@@ -1798,14 +1818,19 @@ void enable_simulated_io_errors(void){
** response is to zero the memory at pDest and continue. A real IO error
** will presumably recur and be picked up later (Todo: Think about this).
*/
void sqlite3pager_read_fileheader(Pager *pPager, int N, unsigned char *pDest){
int sqlite3pager_read_fileheader(Pager *pPager, int N, unsigned char *pDest){
int rc = SQLITE_OK;
memset(pDest, 0, N);
if( MEMDB==0 ){
disable_simulated_io_errors();
sqlite3OsSeek(pPager->fd, 0);
sqlite3OsRead(pPager->fd, pDest, N);
enable_simulated_io_errors();
rc = sqlite3OsRead(pPager->fd, pDest, N);
if( rc==SQLITE_IOERR_SHORT_READ ){
rc = SQLITE_OK;
}
}
return rc;
}
/*
@@ -1965,9 +1990,15 @@ static void memoryTruncate(Pager *pPager){
*/
static int pager_wait_on_lock(Pager *pPager, int locktype){
int rc;
/* The OS lock values must be the same as the Pager lock values */
assert( PAGER_SHARED==SHARED_LOCK );
assert( PAGER_RESERVED==RESERVED_LOCK );
assert( PAGER_EXCLUSIVE==EXCLUSIVE_LOCK );
/* If the file is currently unlocked then the size must be unknown */
assert( pPager->state>=PAGER_SHARED || pPager->dbSize<0 || MEMDB );
if( pPager->state>=locktype ){
rc = SQLITE_OK;
}else{
@@ -1986,6 +2017,7 @@ static int pager_wait_on_lock(Pager *pPager, int locktype){
*/
int sqlite3pager_truncate(Pager *pPager, Pgno nPage){
int rc;
assert( pPager->state>=PAGER_SHARED || MEMDB );
sqlite3pager_pagecount(pPager);
if( pPager->errCode ){
rc = pPager->errCode;
@@ -2032,7 +2064,6 @@ int sqlite3pager_truncate(Pager *pPager, Pgno nPage){
** to the caller.
*/
int sqlite3pager_close(Pager *pPager){
PgHdr *pPg, *pNext;
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
/* A malloc() cannot fail in sqlite3ThreadData() as one or more calls to
** malloc() must have already been made by this thread before it gets
@@ -2044,46 +2075,10 @@ int sqlite3pager_close(Pager *pPager){
assert( pTsd && pTsd->nAlloc );
#endif
switch( pPager->state ){
case PAGER_RESERVED:
case PAGER_SYNCED:
case PAGER_EXCLUSIVE: {
/* We ignore any IO errors that occur during the rollback
** operation. So disable IO error simulation so that testing
** works more easily.
*/
disable_simulated_io_errors();
sqlite3pager_rollback(pPager);
enable_simulated_io_errors();
if( !MEMDB ){
sqlite3OsUnlock(pPager->fd, NO_LOCK);
}
assert( pPager->errCode || pPager->journalOpen==0 );
break;
}
case PAGER_SHARED: {
if( !MEMDB ){
sqlite3OsUnlock(pPager->fd, NO_LOCK);
}
break;
}
default: {
/* Do nothing */
break;
}
}
for(pPg=pPager->pAll; pPg; pPg=pNext){
#ifndef NDEBUG
if( MEMDB ){
PgHistory *pHist = PGHDR_TO_HIST(pPg, pPager);
assert( !pPg->alwaysRollback );
assert( !pHist->pOrig );
assert( !pHist->pStmt );
}
#endif
pNext = pPg->pNextAll;
sqliteFree(pPg);
}
disable_simulated_io_errors();
pPager->errCode = 0;
pager_reset(pPager);
enable_simulated_io_errors();
TRACE2("CLOSE %d\n", PAGERID(pPager));
assert( pPager->errCode || (pPager->journalOpen==0 && pPager->stmtOpen==0) );
if( pPager->journalOpen ){
@@ -2665,8 +2660,7 @@ int sqlite3pager_get(Pager *pPager, Pgno pgno, void **ppPage){
*/
rc = sqlite3OsLock(pPager->fd, EXCLUSIVE_LOCK);
if( rc!=SQLITE_OK ){
sqlite3OsUnlock(pPager->fd, NO_LOCK);
pPager->state = PAGER_UNLOCK;
pager_unlock(pPager);
return pager_error(pPager, rc);
}
pPager->state = PAGER_EXCLUSIVE;
@@ -2681,8 +2675,7 @@ int sqlite3pager_get(Pager *pPager, Pgno pgno, void **ppPage){
*/
rc = sqlite3OsOpenReadOnly(pPager->zJournal, &pPager->jfd);
if( rc!=SQLITE_OK ){
sqlite3OsUnlock(pPager->fd, NO_LOCK);
pPager->state = PAGER_UNLOCK;
pager_unlock(pPager);
return SQLITE_BUSY;
}
pPager->journalOpen = 1;
@@ -2789,19 +2782,10 @@ int sqlite3pager_get(Pager *pPager, Pgno pgno, void **ppPage){
}
TRACE3("FETCH %d page %d\n", PAGERID(pPager), pPg->pgno);
CODEC1(pPager, PGHDR_TO_DATA(pPg), pPg->pgno, 3);
if( rc!=SQLITE_OK ){
i64 fileSize;
int rc2 = sqlite3OsFileSize(pPager->fd, &fileSize);
if( rc2!=SQLITE_OK || fileSize>=pgno*pPager->pageSize ){
/* An IO error occured in one of the the sqlite3OsSeek() or
** sqlite3OsRead() calls above. */
pPg->pgno = 0;
sqlite3pager_unref(PGHDR_TO_DATA(pPg));
return rc;
}else{
clear_simulated_io_error();
memset(PGHDR_TO_DATA(pPg), 0, pPager->pageSize);
}
if( rc!=SQLITE_OK && rc!=SQLITE_IOERR_SHORT_READ ){
pPg->pgno = 0;
sqlite3pager_unref(PGHDR_TO_DATA(pPg));
return rc;
}else{
TEST_INCR(pPager->nRead);
}
@@ -2973,8 +2957,7 @@ failed_to_open_journal:
*/
sqlite3OsDelete(pPager->zJournal);
}else{
sqlite3OsUnlock(pPager->fd, NO_LOCK);
pPager->state = PAGER_UNLOCK;
pager_reset(pPager);
}
return rc;
}
@@ -3233,6 +3216,7 @@ int sqlite3pager_write(void *pData){
/* Update the database size and return.
*/
assert( pPager->state>=PAGER_SHARED );
if( pPager->dbSize<(int)pPg->pgno ){
pPager->dbSize = pPg->pgno;
if( !MEMDB && pPager->dbSize==PENDING_BYTE/pPager->pageSize ){
@@ -3308,6 +3292,7 @@ void sqlite3pager_dont_write(Pager *pPager, Pgno pgno){
assert( pPg!=0 ); /* We never call _dont_write unless the page is in mem */
pPg->alwaysRollback = 1;
if( pPg->dirty && !pPager->stmtInUse ){
assert( pPager->state>=PAGER_SHARED );
if( pPager->dbSize==(int)pPg->pgno && pPager->origDbSize<pPager->dbSize ){
/* If this pages is the last page in the file and the file has grown
** during the current transaction, then do NOT mark the page as clean.
@@ -3337,7 +3322,8 @@ void sqlite3pager_dont_rollback(void *pData){
PgHdr *pPg = DATA_TO_PGHDR(pData);
Pager *pPager = pPg->pPager;
if( pPager->state!=PAGER_EXCLUSIVE || pPager->journalOpen==0 ) return;
assert( pPager->state>=PAGER_RESERVED );
if( pPager->journalOpen==0 ) return;
if( pPg->alwaysRollback || pPager->alwaysRollback || MEMDB ) return;
if( !pPg->inJournal && (int)pPg->pgno <= pPager->origDbSize ){
assert( pPager->aInJournal!=0 );
@@ -3405,14 +3391,12 @@ int sqlite3pager_commit(Pager *pPager){
** if there have been no changes to the database file. */
assert( pPager->needSync==0 );
rc = pager_unwritelock(pPager);
pPager->dbSize = -1;
return rc;
}
assert( pPager->journalOpen );
rc = sqlite3pager_sync(pPager, 0, 0);
if( rc==SQLITE_OK ){
rc = pager_unwritelock(pPager);
pPager->dbSize = -1;
}
return rc;
}
@@ -3470,7 +3454,6 @@ int sqlite3pager_rollback(Pager *pPager){
if( !pPager->dirtyCache || !pPager->journalOpen ){
rc = pager_unwritelock(pPager);
pPager->dbSize = -1;
return rc;
}
@@ -3546,6 +3529,7 @@ int sqlite3pager_stmt_begin(Pager *pPager){
int rc;
char zTemp[SQLITE_TEMPNAME_SIZE];
assert( !pPager->stmtInUse );
assert( pPager->state>=PAGER_SHARED );
assert( pPager->dbSize>=0 );
TRACE2("STMT-BEGIN %d\n", PAGERID(pPager));
if( MEMDB ){