contrib/sqlite3/sqlite3.c

24915 static void *memsys3Checkout(u32 i, u32 nBlock){
24919   assert( mem3.aPool[i-1].u.hdr.size4x/4==nBlock );
24920   assert( mem3.aPool[i+nBlock-1].u.hdr.prevSize==nBlock );
24922   mem3.aPool[i-1].u.hdr.size4x = nBlock*4 | 1 | (x&2);
24923   mem3.aPool[i+nBlock-1].u.hdr.prevSize = nBlock;
24924   mem3.aPool[i+nBlock-1].u.hdr.size4x |= 2;
24933 static void *memsys3FromKeyBlk(u32 nBlock){
24935   assert( mem3.szKeyBlk>=nBlock );
24936   if( nBlock>=mem3.szKeyBlk-1 ){
24946     newi = mem3.iKeyBlk + mem3.szKeyBlk - nBlock;
24948     mem3.aPool[mem3.iKeyBlk+mem3.szKeyBlk-1].u.hdr.prevSize = nBlock;
24950     mem3.aPool[newi-1].u.hdr.size4x = nBlock*4 + 1;
24951     mem3.szKeyBlk -= nBlock;
25019   u32 nBlock;
25025     nBlock = 2;
25027     nBlock = (nByte + 11)/8;
25029   assert( nBlock>=2 );
25036   if( nBlock <= MX_SMALL ){
25037     i = mem3.aiSmall[nBlock-2];
25039       memsys3UnlinkFromList(i, &mem3.aiSmall[nBlock-2]);
25040       return memsys3Checkout(i, nBlock);
25043     int hash = nBlock % N_HASH;
25045       if( mem3.aPool[i-1].u.hdr.size4x/4==nBlock ){
25047         return memsys3Checkout(i, nBlock);
25056   if( mem3.szKeyBlk>=nBlock ){
25057     return memsys3FromKeyBlk(nBlock);
25068   for(toFree=nBlock*16; toFree<(mem3.nPool*16); toFree *= 2){
25083       if( mem3.szKeyBlk>=nBlock ){
25084         return memsys3FromKeyBlk(nBlock);
25450   int nBlock;      /* Number of szAtom sized blocks in zPool */
25504   assert( i>=0 && i<mem5.nBlock );
25527   assert( i>=0 && i<mem5.nBlock );
25534     assert( x<mem5.nBlock );
25558   assert( i>=0 && i<mem5.nBlock );
25653   assert( iBlock>=0 && iBlock<mem5.nBlock );
25659   assert( iBlock+size-1<(u32)mem5.nBlock );
25681       if( iBuddy>=mem5.nBlock ) break;
25831   mem5.nBlock = (nByte / (mem5.szAtom+sizeof(u8)));
25833   mem5.aCtrl = (u8 *)&mem5.zPool[mem5.nBlock*mem5.szAtom];
25842     if( (iOffset+nAlloc)<=mem5.nBlock ){
25847     assert((iOffset+nAlloc)>mem5.nBlock);
184570               int nBlock = 0;
184573               rc = sqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock,0);
184575                   MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc
184578                 memcpy(pNode->block.a, aBlock, nBlock);
184579                 pNode->block.n = nBlock;
184580                 memset(&pNode->block.a[nBlock], 0, FTS3_NODE_PADDING);
184905     int nBlock = 0;
184908     rc = sqlite3Fts3ReadBlock(p, iBlock, &aBlock, &nBlock, 0);
184910       rc = fts3TruncateNode(aBlock, nBlock, &block, zTerm, nTerm, &iBlock);