/*
** Close a file.
*/
int sqlite3OsClose(OsFile *id){
if( !id->isOpen ) return SQLITE_OK;
sqlite3OsUnlock(id, NO_LOCK);
if( id->dirfd>=0 ) close(id->dirfd);
id->dirfd = -1;
sqlite3OsEnterMutex();
if( id->pOpen->nLock ){
/* If there are outstanding locks, do not actually close the file just
** yet because that would clear those locks. Instead, add the file
** descriptor to pOpen->aPending. It will be automatically closed when
** the last lock is cleared.
*/
int *aNew;
struct openCnt *pOpen = id->pOpen;
pOpen->nPending++;
aNew = sqliteRealloc( pOpen->aPending, pOpen->nPending*sizeof(int) );
if( aNew==0 ){
/* If a malloc fails, just leak the file descriptor */
}else{
pOpen->aPending = aNew;
pOpen->aPending[pOpen->nPending-1] = id->h;
}
}else{
/* There are no outstanding locks so we can close the file immediately */
close(id->h);
}
releaseLockInfo(id->pLock);
releaseOpenCnt(id->pOpen);
sqlite3OsLeaveMutex();
id->isOpen = 0;
TRACE2("CLOSE %-3d\n", id->h);
OpenCounter(-1);
return SQLITE_OK;
}
/*
** Unlock an tvfs-file.
*/
static int tvfsUnlock(sqlite3_file *pFile, int eLock){
TestvfsFd *pFd = tvfsGetFd(pFile);
Testvfs *p = (Testvfs *)pFd->pVfs->pAppData;
if( p->mask&TESTVFS_WRITE_MASK && tvfsInjectIoerr(p) ){
return SQLITE_IOERR_UNLOCK;
}
return sqlite3OsUnlock(pFd->pReal, eLock);
}
/*
** Unlock an jt-file.
*/
static int jtUnlock(sqlite3_file *pFile, int eLock){
int rc;
jt_file *p = (jt_file *)pFile;
rc = sqlite3OsUnlock(p->pReal, eLock);
if( rc==SQLITE_OK && eLock<p->eLock ){
p->eLock = eLock;
}
return rc;
}
/*
** Unlock an tvfs-file.
*/
static int tvfsUnlock(sqlite3_file *pFile, int eLock){
TestvfsFd *pFd = tvfsGetFd(pFile);
Testvfs *p = (Testvfs *)pFd->pVfs->pAppData;
if( p->pScript && p->mask&TESTVFS_UNLOCK_MASK ){
char zLock[30];
sqlite3_snprintf(sizeof(zLock),zLock,"%d",eLock);
tvfsExecTcl(p, "xUnlock", Tcl_NewStringObj(pFd->zFilename, -1),
Tcl_NewStringObj(zLock, -1), 0, 0);
}
if( p->mask&TESTVFS_WRITE_MASK && tvfsInjectIoerr(p) ){
return SQLITE_IOERR_UNLOCK;
}
return sqlite3OsUnlock(pFd->pReal, eLock);
}
//Lock/unlock tests
void Test5()
{
sqlite3_vfs* vfs = sqlite3_vfs_find(KSymbianVfsNameZ);
TEST(vfs != NULL);
sqlite3_file* osFile = (sqlite3_file*)User::Alloc(vfs->szOsFile);
TEST(osFile != NULL);
//Creating a new file
int res = 0;
int err = sqlite3OsAccess(vfs, KTestFile1Z, SQLITE_ACCESS_EXISTS, &res);
TEST2(err, SQLITE_OK);
TEST2(res, 0);
err = sqlite3OsOpen(vfs, KTestFile1Z, osFile, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
TEST2(err, SQLITE_OK);
//Lock/unlock
//SHARED_LOCK
err = sqlite3OsLock(osFile, SHARED_LOCK);
TEST2(err, SQLITE_OK);
err = sqlite3OsCheckReservedLock(osFile, &res);
TEST2(err, SQLITE_OK);
TEST2(res, 0);
//RESERVED_LOCK
err = sqlite3OsLock(osFile, RESERVED_LOCK);
TEST2(err, SQLITE_OK);
err = sqlite3OsCheckReservedLock(osFile, &res);
TEST2(err, SQLITE_OK);
TEST2(res, 1);
//PENDING_LOCK
err = sqlite3OsLock(osFile, PENDING_LOCK);
TEST2(err, SQLITE_OK);
//EXCLUSIVE_LOCK
err = sqlite3OsLock(osFile, EXCLUSIVE_LOCK);
TEST2(err, SQLITE_OK);
//back to SHARED_LOCK
err = sqlite3OsLock(osFile, SHARED_LOCK);
TEST2(err, SQLITE_OK);
//UNLOCK
err = sqlite3OsUnlock(osFile, NO_LOCK);
//Close the file
err = sqlite3OsClose(osFile);
TEST2(err, SQLITE_OK);
//
err = sqlite3OsDelete(vfs, KTestFile1Z, 0);
TEST2(err, SQLITE_OK);
User::Free(osFile);
}
static int cfUnlock(sqlite3_file *pFile, int eLock){
return sqlite3OsUnlock(((CrashFile *)pFile)->pRealFile, eLock);
}
/*
** Unlock an devsym-file.
*/
static int devsymUnlock(sqlite3_file *pFile, int eLock){
devsym_file *p = (devsym_file *)pFile;
return sqlite3OsUnlock(p->pReal, eLock);
}
/*
** Unlock an tvfs-file.
*/
static int tvfsUnlock(sqlite3_file *pFile, int eLock){
TestvfsFd *p = tvfsGetFd(pFile);
return sqlite3OsUnlock(p->pReal, eLock);
}