Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Changes In Branch ovfloffset-macro Excluding Merge-Ins
This is equivalent to a diff from 6a4cfc7a to 1541607d
2015-12-31
| ||
04:34 | Small size and performance optimization to the VDBE comparison opcodes. (check-in: 7a0b9413 user: drh tags: trunk) | |
2015-12-30
| ||
20:50 | Use the OvflOffset() macro to try to remove some magic numbers from btree.c. (Leaf check-in: 1541607d user: drh tags: ovfloffset-macro) | |
18:18 | Reduce the size of the CellInfo object from 32 to 24 bytes on 64-bit machines, for a small performance increase and library size reduction. (check-in: 6a4cfc7a user: drh tags: trunk) | |
17:03 | Enhance the command-line shell so that it can handle MBCS characters on input and output. (check-in: 3d81dfe3 user: drh tags: trunk) | |
2015-12-18
| ||
03:59 | Reduce the size of the CellInfo object from 32 to 24 bytes on 64-bit machines. (Closed-Leaf check-in: 78507154 user: drh tags: optimize-cellinfo) | |
Changes to src/btree.c.
︙ | |||
1302 1303 1304 1305 1306 1307 1308 | 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 | - + | */ static void ptrmapPutOvflPtr(MemPage *pPage, u8 *pCell, int *pRC){ CellInfo info; if( *pRC ) return; assert( pCell!=0 ); pPage->xParseCell(pPage, pCell, &info); if( info.nLocal<info.nPayload ){ |
︙ | |||
3342 3343 3344 3345 3346 3347 3348 | 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 | - + - + | for(i=0; i<nCell; i++){ u8 *pCell = findCell(pPage, i); if( eType==PTRMAP_OVERFLOW1 ){ CellInfo info; pPage->xParseCell(pPage, pCell, &info); if( info.nLocal<info.nPayload && pCell+info.nSize-1<=pPage->aData+pPage->maskPage |
︙ | |||
6851 6852 6853 6854 6855 6856 6857 | 6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 | - + | for(j=0; j<pPage->nCell; j++){ CellInfo info; u8 *z; z = findCell(pPage, j); pPage->xParseCell(pPage, z, &info); if( info.nLocal<info.nPayload ){ |
︙ |
Changes to src/btreeInt.h.
︙ | |||
468 469 470 471 472 473 474 475 476 477 478 479 480 481 | 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 | + + + + + + + | struct CellInfo { i64 nKey; /* The key for INTKEY tables, or nPayload otherwise */ u8 *pPayload; /* Pointer to the start of payload */ u32 nPayload; /* Bytes of payload */ u16 nLocal; /* Amount of payload held locally, not on overflow */ u16 nSize; /* Size of the cell content on the main b-tree page */ }; /* If X is a pointer to a CellInfo object for a cell, then OvflOffset(X) is ** the offset from the start of that cell to the first overflow page number ** for for that cell. */ #define OvflOffset(X) ((X)->nSize-4) /* ** Maximum depth of an SQLite B-Tree structure. Any B-Tree deeper than ** this will be declared corrupt. This value is calculated based on a ** maximum database size of 2^31 pages a minimum fanout of 2 for a ** root-node and 3 for all other internal nodes. ** |
︙ |