database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-10-27 08:52:26 +03:00
Code Activity

Add os_test.c. Not activated yet. (CVS 1655)

Browse Source 
FossilOrigin-Name: d16b863849d1aa887fe403e25153b1e9df6b837e
This commit is contained in:
danielk1977
2004-06-22 11:29:02 +00:00
parent 369340af3d
commit e302663615
10 changed files with 498 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
src/os_unix.c
View File

@@ -512,44 +512,6 @@ int sqlite3OsTempFileName(char *zBuf){
return SQLITE_OK;
}
/*
** 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;
}
/*
** Read data from a file into a buffer. Return SQLITE_OK if all
** bytes were read successfully and SQLITE_IOERR if anything goes
@@ -943,6 +905,44 @@ int sqlite3OsUnlock(OsFile *id, int locktype){
return SQLITE_OK;
}
/*
** 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;
}
/*
** Get information to seed the random number generator. The seed
** is written into the buffer zBuf[256]. The calling function must