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Changes In Branch unix-vfs-optimization Excluding Merge-Ins
This is equivalent to a diff from 177862c1d5 to f3c0579e93
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2016-03-16
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| 19:10 | Avoid a few unnecessary fstat()s on journal files. (check-in: dbf8470591 user: drh tags: trunk) | |
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2015-12-08
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| 16:08 | Avoid doing comparisons with pointers that might have been previously been passed to realloc() and/or free(). (check-in: f20396adb2 user: drh tags: trunk) | |
| 14:37 | Avoid unnecessary work inside of verifyDbFile() in the unix VFS. (Closed-Leaf check-in: f3c0579e93 user: drh tags: unix-vfs-optimization) | |
| 04:18 | Add a test case of the form "WHERE a<2 OR a<3" using PRAGMA count_changes. This test case was failing before the 3.9.0 release. (check-in: 177862c1d5 user: drh tags: trunk) | |
| 00:47 | Update the TclKit download URL. (check-in: 07e5199c6f user: mistachkin tags: trunk) | |
Changes to src/os_unix.c.
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** (3) The file has not been renamed or unlinked
**
** Issue sqlite3_log(SQLITE_WARNING,...) messages if anything is not right.
*/
static void verifyDbFile(unixFile *pFile){
struct stat buf;
int rc;
rc = osFstat(pFile->h, &buf);
if( rc!=0 ){
sqlite3_log(SQLITE_WARNING, "cannot fstat db file %s", pFile->zPath);
return;
}
if( buf.st_nlink==0 && (pFile->ctrlFlags & UNIXFILE_DELETE)==0 ){
sqlite3_log(SQLITE_WARNING, "file unlinked while open: %s", pFile->zPath);
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** (3) The file has not been renamed or unlinked
**
** Issue sqlite3_log(SQLITE_WARNING,...) messages if anything is not right.
*/
static void verifyDbFile(unixFile *pFile){
struct stat buf;
int rc;
/* These verifications occurs for the main database only */
if( pFile->ctrlFlags & UNIXFILE_NOLOCK ) return;
rc = osFstat(pFile->h, &buf);
if( rc!=0 ){
sqlite3_log(SQLITE_WARNING, "cannot fstat db file %s", pFile->zPath);
return;
}
if( buf.st_nlink==0 && (pFile->ctrlFlags & UNIXFILE_DELETE)==0 ){
sqlite3_log(SQLITE_WARNING, "file unlinked while open: %s", pFile->zPath);
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#endif
}
#if SQLITE_ENABLE_LOCKING_STYLE
else{
p->openFlags = openFlags;
}
#endif
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#endif
}
#if SQLITE_ENABLE_LOCKING_STYLE
else{
p->openFlags = openFlags;
}
#endif
#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
if( fstatfs(fd, &fsInfo) == -1 ){
storeLastErrno(p, errno);
robust_close(p, fd, __LINE__);
return SQLITE_IOERR_ACCESS;
}
if (0 == strncmp("msdos", fsInfo.f_fstypename, 5)) {
((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
}
if (0 == strncmp("exfat", fsInfo.f_fstypename, 5)) {
((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS;
}
#endif
/* Set up appropriate ctrlFlags */
if( isDelete ) ctrlFlags |= UNIXFILE_DELETE;
if( isReadonly ) ctrlFlags |= UNIXFILE_RDONLY;
noLock = eType!=SQLITE_OPEN_MAIN_DB;
if( noLock ) ctrlFlags |= UNIXFILE_NOLOCK;
if( syncDir ) ctrlFlags |= UNIXFILE_DIRSYNC;
if( flags & SQLITE_OPEN_URI ) ctrlFlags |= UNIXFILE_URI;
#if SQLITE_ENABLE_LOCKING_STYLE
#if SQLITE_PREFER_PROXY_LOCKING
isAutoProxy = 1;
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