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Overview
Comment: | Avoid unnecessary calls to the xRoundup() method of the memory allocator when the soft heap limit is not set. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
4209b89eab01814228a178963238e0df |
User & Date: | drh 2017-01-10 16:09:46.718 |
Context
2017-01-10
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17:33 | Throw an error if the ON clause of a LEFT JOIN references tables to the right of the ON clause. Fix for ticket [25e335f802dd]. (check-in: c92ecff2ec user: drh tags: trunk) | |
16:09 | Avoid unnecessary calls to the xRoundup() method of the memory allocator when the soft heap limit is not set. (check-in: 4209b89eab user: drh tags: trunk) | |
15:08 | Fix a potential assertion fault discovered by OSS-Fuzz. (check-in: 71c03b59b6 user: drh tags: trunk) | |
Changes
Changes to src/malloc.c.
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213 214 215 216 217 218 219 | sqlite3_mutex_enter(mem0.mutex); } /* ** Do a memory allocation with statistics and alarms. Assume the ** lock is already held. */ | | < < > | | | < | 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 | sqlite3_mutex_enter(mem0.mutex); } /* ** Do a memory allocation with statistics and alarms. Assume the ** lock is already held. */ static void mallocWithAlarm(int n, void **pp){ void *p; assert( sqlite3_mutex_held(mem0.mutex) ); sqlite3StatusHighwater(SQLITE_STATUS_MALLOC_SIZE, n); if( mem0.alarmThreshold>0 ){ sqlite3_int64 nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED); int nFull = sqlite3GlobalConfig.m.xRoundup(n); if( nUsed >= mem0.alarmThreshold - nFull ){ mem0.nearlyFull = 1; sqlite3MallocAlarm(nFull); }else{ mem0.nearlyFull = 0; } } p = sqlite3GlobalConfig.m.xMalloc(n); #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT if( p==0 && mem0.alarmThreshold>0 ){ sqlite3MallocAlarm(nFull); p = sqlite3GlobalConfig.m.xMalloc(n); } #endif if( p ){ int nFull = sqlite3MallocSize(p); sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull); sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1); } *pp = p; } /* ** Allocate memory. This routine is like sqlite3_malloc() except that it ** assumes the memory subsystem has already been initialized. */ void *sqlite3Malloc(u64 n){ |
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