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Overview
| Comment: | Change integrity_check to analyze the cells of a page in reverse order, as this will tend to insert the cells into the analysis heap in increasing order by address, which is the most efficient way to load a min-heap. |
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| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
59ad912c4c1f858e04d27b1b8f25581a |
| User & Date: | drh 2015-07-01 01:31:14 |
Context
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2015-07-01
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| 04:08 | Fix some harmless compiler warnings. check-in: 307195c8 user: drh tags: trunk | |
| 01:31 | Change integrity_check to analyze the cells of a page in reverse order, as this will tend to insert the cells into the analysis heap in increasing order by address, which is the most efficient way to load a min-heap. check-in: 59ad912c user: drh tags: trunk | |
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2015-06-30
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| 17:28 | Make use of the _byteswap_ushort() and _byteswap_ulong() compiler intrinsics for MSVC, when available. check-in: fe144dd7 user: mistachkin tags: trunk | |
Changes
Changes to src/btree.c.
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** number of cells on the page. */
nCell = get2byte(&data[hdr+3]);
/* EVIDENCE-OF: R-23882-45353 The cell pointer array of a b-tree page
** immediately follows the b-tree page header. */
cellStart = hdr + 12 - 4*pPage->leaf;
/* EVIDENCE-OF: R-02776-14802 The cell pointer array consists of K 2-byte
** integer offsets to the cell contents. */
for(i=0; i<nCell; i++){
int pc = get2byteAligned(&data[cellStart+i*2]);
u32 size = 65536;
if( pc<=usableSize-4 ){
size = pPage->xCellSize(pPage, &data[pc]);
}
if( (int)(pc+size-1)>=usableSize ){
pCheck->zPfx = 0;
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9100 9101 9102 9103 9104 9105 9106 9107 9108 9109 9110 9111 9112 9113 9114 |
** number of cells on the page. */
nCell = get2byte(&data[hdr+3]);
/* EVIDENCE-OF: R-23882-45353 The cell pointer array of a b-tree page
** immediately follows the b-tree page header. */
cellStart = hdr + 12 - 4*pPage->leaf;
/* EVIDENCE-OF: R-02776-14802 The cell pointer array consists of K 2-byte
** integer offsets to the cell contents. */
for(i=nCell-1; i>=0; i--){
int pc = get2byteAligned(&data[cellStart+i*2]);
u32 size = 65536;
if( pc<=usableSize-4 ){
size = pPage->xCellSize(pPage, &data[pc]);
}
if( (int)(pc+size-1)>=usableSize ){
pCheck->zPfx = 0;
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