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Overview
| Comment: | More precise determination of when an in-memory journal needs to be spilled to disk. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | batch-atomic-write |
| Files: | files | file ages | folders |
| SHA3-256: |
6a505bdd9347783d3d8105cb8185aa78 |
| User & Date: | drh 2017-07-28 18:16:14 |
Context
|
2017-07-28
| ||
| 20:49 | Disable the writecrash.test module on Windows. (Leaf check-in: 4c0520d4 user: drh tags: batch-atomic-write) | |
| 18:16 | More precise determination of when an in-memory journal needs to be spilled to disk. (check-in: 6a505bdd user: drh tags: batch-atomic-write) | |
| 13:18 | Add new extended error codes for the atomic write file-controls. (check-in: 94a20047 user: drh tags: batch-atomic-write) | |
Changes
Changes to src/memjournal.c.
393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 |
** in-memory-only journal file (i.e. is one that was opened with a +ve
** nSpill parameter or as SQLITE_OPEN_MAIN_JOURNAL), and the underlying
** file has not yet been created, create it now.
*/
int sqlite3JournalCreate(sqlite3_file *pJfd){
int rc = SQLITE_OK;
MemJournal *p = (MemJournal*)pJfd;
if( p->pMethod==&MemJournalMethods && (p->nSpill>0
#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
|| (p->flags & SQLITE_OPEN_MAIN_JOURNAL)
#endif
)){
rc = memjrnlCreateFile(p);
}
return rc;
|
| > > > > > > > > |
393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 |
** in-memory-only journal file (i.e. is one that was opened with a +ve
** nSpill parameter or as SQLITE_OPEN_MAIN_JOURNAL), and the underlying
** file has not yet been created, create it now.
*/
int sqlite3JournalCreate(sqlite3_file *pJfd){
int rc = SQLITE_OK;
MemJournal *p = (MemJournal*)pJfd;
if( p->pMethod==&MemJournalMethods && (
#ifdef SQLITE_ENABLE_ATOMIC_WRITE
p->nSpill>0
#else
/* While this appears to not be possible without ATOMIC_WRITE, the
** paths are complex, so it seems prudent to leave the test in as
** a NEVER(), in case our analysis is subtly flawed. */
NEVER(p->nSpill>0)
#endif
#ifdef SQLITE_ENABLE_BATCH_ATOMIC_WRITE
|| (p->flags & SQLITE_OPEN_MAIN_JOURNAL)
#endif
)){
rc = memjrnlCreateFile(p);
}
return rc;
|