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Overview
Comment: | Add a mutex around an sqlite3StatusAdd() call to prevent the pagecount overflow measurements from getting off in multithreaded applications. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
3d8b298dc24fe13a3f390da41f79b861 |
User & Date: | drh 2011-01-26 13:24:40.120 |
Context
2011-01-26
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13:28 | More mutexes around another sqlite3StatusAdd() call. (check-in: e3b500fb5d user: drh tags: trunk) | |
13:24 | Add a mutex around an sqlite3StatusAdd() call to prevent the pagecount overflow measurements from getting off in multithreaded applications. (check-in: 3d8b298dc2 user: drh tags: trunk) | |
07:25 | Update mutex1.test so that it works with the memsubsys1 permutation (pagecache memory). Change a few instances of SQLITE_MUTEX_STATIC_LRU2 in comments and test code to STATIC_PMEM. (check-in: 456bd5c63b user: dan tags: trunk) | |
Changes
Changes to src/pcache1.c.
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224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | if( p==0 ){ /* Memory is not available in the SQLITE_CONFIG_PAGECACHE pool. Get ** it from sqlite3Malloc instead. */ p = sqlite3Malloc(nByte); if( p ){ int sz = sqlite3MallocSize(p); sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz); } sqlite3MemdebugSetType(p, MEMTYPE_PCACHE); } return p; } /* | > > | 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 | if( p==0 ){ /* Memory is not available in the SQLITE_CONFIG_PAGECACHE pool. Get ** it from sqlite3Malloc instead. */ p = sqlite3Malloc(nByte); if( p ){ int sz = sqlite3MallocSize(p); sqlite3_mutex_enter(pcache1.mutex); sqlite3StatusAdd(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz); sqlite3_mutex_leave(pcache1.mutex); } sqlite3MemdebugSetType(p, MEMTYPE_PCACHE); } return p; } /* |
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