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Overview
| Comment: | If MEM_STATUS is disabled, avoid holding the STATIC_MEM mutex when calling the user-defined xMalloc method. Holding the mutex causes problems for memsys3 and memsys5. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
4f20f8ba73691c8a1dc33d2fcd1e793d |
| User & Date: | dan 2010-09-02 10:08:41 |
Context
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2010-09-02
| ||
| 11:53 | Add tests for the EXISTS operator to e_expr.test. check-in: 9f9a95cc user: dan tags: trunk | |
| 10:08 | If MEM_STATUS is disabled, avoid holding the STATIC_MEM mutex when calling the user-defined xMalloc method. Holding the mutex causes problems for memsys3 and memsys5. check-in: 4f20f8ba user: dan tags: trunk | |
| 04:30 | Fix a few typos. Update evidence marks. check-in: c90a68b7 user: shaneh tags: trunk | |
Changes
Changes to src/malloc.c.
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sqlite3_mutex_enter(mem0.mutex);
if( mem0.nScratchFree && sqlite3GlobalConfig.szScratch>=n ){
p = mem0.pScratchFree;
mem0.pScratchFree = mem0.pScratchFree->pNext;
mem0.nScratchFree--;
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, 1);
sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n);
}else{
if( sqlite3GlobalConfig.bMemstat ){
sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n);
n = mallocWithAlarm(n, &p);
if( p ) sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, n);
}else{
p = sqlite3GlobalConfig.m.xMalloc(n);
}
sqlite3MemdebugSetType(p, MEMTYPE_SCRATCH);
}
sqlite3_mutex_leave(mem0.mutex);
#if SQLITE_THREADSAFE==0 && !defined(NDEBUG)
/* Verify that no more than two scratch allocations per thread
** are outstanding at one time. (This is only checked in the
** single-threaded case since checking in the multi-threaded case
** would be much more complicated.) */
assert( scratchAllocOut<=1 );
|
> > > | > |
348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 |
sqlite3_mutex_enter(mem0.mutex);
if( mem0.nScratchFree && sqlite3GlobalConfig.szScratch>=n ){
p = mem0.pScratchFree;
mem0.pScratchFree = mem0.pScratchFree->pNext;
mem0.nScratchFree--;
sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_USED, 1);
sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n);
sqlite3_mutex_leave(mem0.mutex);
}else{
if( sqlite3GlobalConfig.bMemstat ){
sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n);
n = mallocWithAlarm(n, &p);
if( p ) sqlite3StatusAdd(SQLITE_STATUS_SCRATCH_OVERFLOW, n);
sqlite3_mutex_leave(mem0.mutex);
}else{
sqlite3_mutex_leave(mem0.mutex);
p = sqlite3GlobalConfig.m.xMalloc(n);
}
sqlite3MemdebugSetType(p, MEMTYPE_SCRATCH);
}
assert( !sqlite3_mutex_held(mem0.mutex) );
#if SQLITE_THREADSAFE==0 && !defined(NDEBUG)
/* Verify that no more than two scratch allocations per thread
** are outstanding at one time. (This is only checked in the
** single-threaded case since checking in the multi-threaded case
** would be much more complicated.) */
assert( scratchAllocOut<=1 );
|
Changes to test/permutations.test.
583 584 585 586 587 588 589 590 591 592 593 594 595 596 |
test_suite "memsys5-2" -description {
Run tests using the allocator in mem5.c in a different configuration.
} -files {
select1.test
} -initialize {
catch {db close}
sqlite3_shutdown
sqlite3_config_heap 40000000 16
sqlite3_config_lookaside 0 0
install_malloc_faultsim 1
sqlite3_initialize
autoinstall_test_functions
} -shutdown {
catch {db close}
|
> |
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test_suite "memsys5-2" -description {
Run tests using the allocator in mem5.c in a different configuration.
} -files {
select1.test
} -initialize {
catch {db close}
sqlite3_shutdown
sqlite3_config_memstatus 0
sqlite3_config_heap 40000000 16
sqlite3_config_lookaside 0 0
install_malloc_faultsim 1
sqlite3_initialize
autoinstall_test_functions
} -shutdown {
catch {db close}
|