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Overview
| Comment: | Fix some problems with dropped error codes in multiplexOpen(). |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | nx-devkit |
| Files: | files | file ages | folders |
| SHA1: |
2d50f78188e3297e8cefdf73cff51fa0 |
| User & Date: | dan 2011-12-15 11:45:19.350 |
Context
|
2011-12-15
| ||
| 13:29 | Make sure the chunksize in test_multiplex does not cause the pending byte to fall near the end of a chunk. Adjust the chunksize upward as necessary to prevent this. (check-in: e05f8a2998 user: drh tags: nx-devkit) | |
| 11:45 | Fix some problems with dropped error codes in multiplexOpen(). (check-in: 2d50f78188 user: dan tags: nx-devkit) | |
| 02:22 | In the multiplexor, do not try to delete overflow files that do not exist. And assume all but the last overflow file is the size of the chunk size. (check-in: a822a80d3c user: drh tags: nx-devkit) | |
Changes
Changes to src/test_multiplex.c.
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memcpy(pGroup->zName, zName, nName+1);
pGroup->nName = nName;
}
pGroup->flags = flags;
rc = multiplexSubFilename(pGroup, 1);
if( rc==SQLITE_OK ){
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, pOutFlags);
}
| > | < | | > > | | | | > > | 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 |
memcpy(pGroup->zName, zName, nName+1);
pGroup->nName = nName;
}
pGroup->flags = flags;
rc = multiplexSubFilename(pGroup, 1);
if( rc==SQLITE_OK ){
pSubOpen = multiplexSubOpen(pGroup, 0, &rc, pOutFlags);
assert( pSubOpen || rc!=SQLITE_OK );
}
if( rc==SQLITE_OK ){
sqlite3_int64 sz;
rc = pSubOpen->pMethods->xFileSize(pSubOpen, &sz);
if( rc==SQLITE_OK && zName ){
int exists;
/* If the first overflow file exists and if the size of the main file
** is different from the chunk size, that means the chunk size is set
** set incorrectly. So fix it.
**
** Or, if the first overflow file does not exist and the main file is
** larger than the chunk size, that means the chunk size is too small.
** But we have no way of determining the intended chunk size, so
** just disable the multiplexor all togethre.
*/
rc = pOrigVfs->xAccess(pOrigVfs, pGroup->aReal[1].z,
SQLITE_ACCESS_EXISTS, &exists);
if( rc==SQLITE_OK && exists && sz==(sz&0xffff0000) && sz>0
&& sz!=pGroup->szChunk ){
pGroup->szChunk = sz;
}else if( rc==SQLITE_OK && !exists && sz>pGroup->szChunk ){
pGroup->bEnabled = 0;
}
}
}
if( rc==SQLITE_OK ){
if( pSubOpen->pMethods->iVersion==1 ){
pMultiplexOpen->base.pMethods = &gMultiplex.sIoMethodsV1;
}else{
pMultiplexOpen->base.pMethods = &gMultiplex.sIoMethodsV2;
}
/* place this group at the head of our list */
pGroup->pNext = gMultiplex.pGroups;
|
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