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Overview
| Comment: | Fixed incorrect typecast for flock structure ptr in fcntl() call in sqlite3TestLockingStyle() Restored previous fullfsync behavior, try fsync() if fcntl(fd, F_FULLFSYNC, 0) returns an error. (CVS 3621) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
f044c5f49f116ede8ab2d5ab43caa5ca |
| User & Date: | aswift 2007-01-31 23:37:08 |
Context
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2007-02-01
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| 01:40 | Allow up to 64 tables in a join (the number of bits in a long long int). The old limit was 32 tables. (CVS 3622) check-in: 505dce8f user: drh tags: trunk | |
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2007-01-31
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| 23:37 | Fixed incorrect typecast for flock structure ptr in fcntl() call in sqlite3TestLockingStyle() Restored previous fullfsync behavior, try fsync() if fcntl(fd, F_FULLFSYNC, 0) returns an error. (CVS 3621) check-in: f044c5f4 user: aswift tags: trunk | |
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2007-01-29
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| 17:58 | Replace the randomHex() function with separate functions randomBlob() and hex(). (CVS 3620) check-in: f5ad74a9 user: drh tags: trunk | |
Changes
Changes to src/os_unix.c.
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struct flock lockInfo; lockInfo.l_len = 1; lockInfo.l_start = 0; lockInfo.l_whence = SEEK_SET; lockInfo.l_type = F_RDLCK; if (fcntl(fd, F_GETLK, (int) &lockInfo) != -1) { return posixLockingStyle; } /* testing for flock can give false positives. So if if the above test ** fails, then we fall back to using dot-lock style locking. */ return dotlockLockingStyle; ................................................................................ #ifdef SQLITE_NO_SYNC rc = SQLITE_OK; #else #if HAVE_FULLFSYNC if( fullSync ){ rc = fcntl(fd, F_FULLFSYNC, 0); }else #endif /* HAVE_FULLFSYNC */ if( dataOnly ){ rc = fdatasync(fd); }else{ rc = fsync(fd); } #endif /* defined(SQLITE_NO_SYNC) */ return rc; } /* ** Make sure all writes to a particular file are committed to disk. |
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struct flock lockInfo;
lockInfo.l_len = 1;
lockInfo.l_start = 0;
lockInfo.l_whence = SEEK_SET;
lockInfo.l_type = F_RDLCK;
if (fcntl(fd, F_GETLK, &lockInfo) != -1) {
return posixLockingStyle;
}
/* testing for flock can give false positives. So if if the above test
** fails, then we fall back to using dot-lock style locking.
*/
return dotlockLockingStyle;
................................................................................
#ifdef SQLITE_NO_SYNC
rc = SQLITE_OK;
#else
#if HAVE_FULLFSYNC
if( fullSync ){
rc = fcntl(fd, F_FULLFSYNC, 0);
}else{
rc = 1;
}
/* If the FULLFSYNC failed, fall back to attempting an fsync().
* It shouldn't be possible for fullfsync to fail on the local
* file system (on OSX), so failure indicates that FULLFSYNC
* isn't supported for this file system. So, attempt an fsync
* and (for now) ignore the overhead of a superfluous fcntl call.
* It'd be better to detect fullfsync support once and avoid
* the fcntl call every time sync is called.
*/
if( rc ) rc = fsync(fd);
#else
if( dataOnly ){
rc = fdatasync(fd);
}else{
rc = fsync(fd);
}
#endif /* HAVE_FULLFSYNC */
#endif /* defined(SQLITE_NO_SYNC) */
return rc;
}
/*
** Make sure all writes to a particular file are committed to disk.
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