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Overview
| Comment: | Do not do the bulk pcache1 allocations if SQLITE_CONFIG_PAGECACHE specifies a global page cache buffer. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | pcache-bulk-local |
| Files: | files | file ages | folders |
| SHA1: |
75d98dae676996a05e97b09b19e34463 |
| User & Date: | drh 2015-07-08 13:40:50 |
Context
|
2015-07-08
| ||
| 14:13 | Comment fix. No changes to code. (Closed-Leaf check-in: c1e2ed0e user: drh tags: pcache-bulk-local) | |
| 13:40 | Do not do the bulk pcache1 allocations if SQLITE_CONFIG_PAGECACHE specifies a global page cache buffer. (check-in: 75d98dae user: drh tags: pcache-bulk-local) | |
| 01:22 | Avoid left-shifting bits into the sign of a signed integer, as such behavior is technically undefined. (check-in: 9417b402 user: drh tags: pcache-bulk-local) | |
Changes
Changes to src/pcache1.c.
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pCache->nMin = 10;
pGroup->nMinPage += pCache->nMin;
pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
}
pcache1LeaveMutex(pGroup);
/* Try to initialize the local bulk pagecache line allocation if using
** separate caches and if nPage!=0 */
if( pcache1.separateCache && sqlite3GlobalConfig.nPage!=0 ){
int szBulk;
char *zBulk;
sqlite3BeginBenignMalloc();
if( sqlite3GlobalConfig.nPage>0 ){
szBulk = pCache->szAlloc * sqlite3GlobalConfig.nPage;
}else{
szBulk = -1024*sqlite3GlobalConfig.nPage;
|
> | > > |
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 |
pCache->nMin = 10;
pGroup->nMinPage += pCache->nMin;
pGroup->mxPinned = pGroup->nMaxPage + 10 - pGroup->nMinPage;
}
pcache1LeaveMutex(pGroup);
/* Try to initialize the local bulk pagecache line allocation if using
** separate caches and if nPage!=0 */
if( pcache1.separateCache
&& sqlite3GlobalConfig.nPage!=0
&& sqlite3GlobalConfig.pPage==0
){
int szBulk;
char *zBulk;
sqlite3BeginBenignMalloc();
if( sqlite3GlobalConfig.nPage>0 ){
szBulk = pCache->szAlloc * sqlite3GlobalConfig.nPage;
}else{
szBulk = -1024*sqlite3GlobalConfig.nPage;
|