SQLite

Check-in [06c2b685e1]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Slightly smaller and faster implementation of pcache1InitBulk().
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 06c2b685e15b3ee045a3e7ea018701392771c7664e59a51c9aba87cdefeb37af
User & Date: drh 2017-03-29 17:06:14.960
Context
2017-03-29
18:03
Avoid unnecessary blob handle invalidation when changes are made to an unrelated table. (check-in: 4a01880b62 user: drh tags: trunk)
17:06
Slightly smaller and faster implementation of pcache1InitBulk(). (check-in: 06c2b685e1 user: drh tags: trunk)
16:55
Fix some tests in malloc5.test to account for the sqlite3_release_memory() change in the previous commit. (check-in: d336858dfc user: dan tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/pcache1.c.
281
282
283
284
285
286
287
288
289

290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
  if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
    szBulk = pCache->szAlloc*(i64)pCache->nMax;
  }
  zBulk = pCache->pBulk = sqlite3Malloc( szBulk );
  sqlite3EndBenignMalloc();
  if( zBulk ){
    int nBulk = sqlite3MallocSize(zBulk)/pCache->szAlloc;
    int i;
    for(i=0; i<nBulk; i++){

      PgHdr1 *pX = (PgHdr1*)&zBulk[pCache->szPage];
      pX->page.pBuf = zBulk;
      pX->page.pExtra = &pX[1];
      pX->isBulkLocal = 1;
      pX->isAnchor = 0;
      pX->pNext = pCache->pFree;
      pCache->pFree = pX;
      zBulk += pCache->szAlloc;
    }
  }
  return pCache->pFree!=0;
}

/*
** Malloc function used within this file to allocate space from the buffer
** configured using sqlite3_config(SQLITE_CONFIG_PAGECACHE) option. If no 







<
<
>








|







281
282
283
284
285
286
287


288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
  if( szBulk > pCache->szAlloc*(i64)pCache->nMax ){
    szBulk = pCache->szAlloc*(i64)pCache->nMax;
  }
  zBulk = pCache->pBulk = sqlite3Malloc( szBulk );
  sqlite3EndBenignMalloc();
  if( zBulk ){
    int nBulk = sqlite3MallocSize(zBulk)/pCache->szAlloc;


    do{
      PgHdr1 *pX = (PgHdr1*)&zBulk[pCache->szPage];
      pX->page.pBuf = zBulk;
      pX->page.pExtra = &pX[1];
      pX->isBulkLocal = 1;
      pX->isAnchor = 0;
      pX->pNext = pCache->pFree;
      pCache->pFree = pX;
      zBulk += pCache->szAlloc;
    }while( --nBulk );
  }
  return pCache->pFree!=0;
}

/*
** Malloc function used within this file to allocate space from the buffer
** configured using sqlite3_config(SQLITE_CONFIG_PAGECACHE) option. If no