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Overview
| Comment: | Improved reuse of file descriptors for which close() is delayed to prevent clearing of posix advisory locks. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
509c1ba26a4c12c63ecf04ddfa2f175e |
| User & Date: | drh 2019-08-06 20:55:06 |
| Original Comment: | Improved reuse of file descriptors for which close() is delayed to prevent clearly of posix advisory locks. |
Context
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2019-08-06
| ||
| 21:16 | Ensure that when the col in an operator like "val IN(col)" is a column of a view, its affinity is not used to coerce val. Fix for [0a5e2c1d]. (check-in: 17b3d221 user: dan tags: trunk) | |
| 20:55 | Improved reuse of file descriptors for which close() is delayed to prevent clearing of posix advisory locks. (check-in: 509c1ba2 user: drh tags: trunk) | |
| 20:26 | Enhance the ".recover" output in the shell to use double-quotes around table and column identifiers. (check-in: 846d2d2d user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
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|| pInode->fileId.ino!=(u64)sStat.st_ino) ){
pInode = pInode->pNext;
}
if( pInode ){
UnixUnusedFd **pp;
assert( sqlite3_mutex_notheld(pInode->pLockMutex) );
sqlite3_mutex_enter(pInode->pLockMutex);
for(pp=&pInode->pUnused; *pp && (*pp)->flags!=flags; pp=&((*pp)->pNext));
pUnused = *pp;
if( pUnused ){
*pp = pUnused->pNext;
}
sqlite3_mutex_leave(pInode->pLockMutex);
}
................................................................................
assert( fd>=0 );
if( pOutFlags ){
*pOutFlags = flags;
}
if( p->pPreallocatedUnused ){
p->pPreallocatedUnused->fd = fd;
p->pPreallocatedUnused->flags = flags;
}
if( isDelete ){
#if OS_VXWORKS
zPath = zName;
#elif defined(SQLITE_UNLINK_AFTER_CLOSE)
zPath = sqlite3_mprintf("%s", zName);
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|| pInode->fileId.ino!=(u64)sStat.st_ino) ){
pInode = pInode->pNext;
}
if( pInode ){
UnixUnusedFd **pp;
assert( sqlite3_mutex_notheld(pInode->pLockMutex) );
sqlite3_mutex_enter(pInode->pLockMutex);
flags &= (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
for(pp=&pInode->pUnused; *pp && (*pp)->flags!=flags; pp=&((*pp)->pNext));
pUnused = *pp;
if( pUnused ){
*pp = pUnused->pNext;
}
sqlite3_mutex_leave(pInode->pLockMutex);
}
................................................................................
assert( fd>=0 );
if( pOutFlags ){
*pOutFlags = flags;
}
if( p->pPreallocatedUnused ){
p->pPreallocatedUnused->fd = fd;
p->pPreallocatedUnused->flags =
flags & (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
}
if( isDelete ){
#if OS_VXWORKS
zPath = zName;
#elif defined(SQLITE_UNLINK_AFTER_CLOSE)
zPath = sqlite3_mprintf("%s", zName);
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