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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. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
3d8b298dc24fe13a3f390da41f79b861 |
| User & Date: | drh 2011-01-26 13:24:40 |
Context
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2011-01-26
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| 13:28 | More mutexes around another sqlite3StatusAdd() call. (check-in: e3b500fb 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: 3d8b298d 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: 456bd5c6 user: dan tags: trunk) | |
Changes
Changes to src/pcache1.c.
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;
}
/*
|