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Overview
Comment: | Avoid left-shifting bits into the sign of a signed integer, as such behavior is technically undefined. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | pcache-bulk-local |
Files: | files | file ages | folders |
SHA1: |
9417b4021b779876dcb3b9be636f01f4 |
User & Date: | drh 2015-07-08 01:22:52.331 |
Context
2015-07-08
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13:40 | Do not do the bulk pcache1 allocations if SQLITE_CONFIG_PAGECACHE specifies a global page cache buffer. (check-in: 75d98dae67 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: 9417b4021b user: drh tags: pcache-bulk-local) | |
2015-07-07
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21:14 | Add a compile-time constant for configuring the default pagecache setup. (check-in: ad5fdfbac8 user: drh tags: pcache-bulk-local) | |
Changes
Changes to src/btree.c.
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9115 9116 9117 9118 9119 9120 9121 | */ i = get2byte(&data[hdr+1]); while( i>0 ){ int size, j; assert( (u32)i<=usableSize-4 ); /* Enforced by btreeInitPage() */ size = get2byte(&data[i+2]); assert( (u32)(i+size)<=usableSize ); /* Enforced by btreeInitPage() */ | | | 9115 9116 9117 9118 9119 9120 9121 9122 9123 9124 9125 9126 9127 9128 9129 | */ i = get2byte(&data[hdr+1]); while( i>0 ){ int size, j; assert( (u32)i<=usableSize-4 ); /* Enforced by btreeInitPage() */ size = get2byte(&data[i+2]); assert( (u32)(i+size)<=usableSize ); /* Enforced by btreeInitPage() */ btreeHeapInsert(heap, (((u32)i)<<16)|(i+size-1)); /* EVIDENCE-OF: R-58208-19414 The first 2 bytes of a freeblock are a ** big-endian integer which is the offset in the b-tree page of the next ** freeblock in the chain, or zero if the freeblock is the last on the ** chain. */ j = get2byte(&data[i]); /* EVIDENCE-OF: R-06866-39125 Freeblocks are always connected in order of ** increasing offset. */ |
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