55 } mem0 = { 0, SQLITE_MAX_MEMORY, SQLITE_MAX_MEMORY, 0 };  variable
57 #define mem0 GLOBAL(struct Mem0Global, mem0)  macro
63   return mem0.mutex;  in sqlite3MallocMutex()
103   sqlite3_mutex_enter(mem0.mutex);  in sqlite3_soft_heap_limit64()
104   priorLimit = mem0.alarmThreshold;  in sqlite3_soft_heap_limit64()
106     sqlite3_mutex_leave(mem0.mutex);  in sqlite3_soft_heap_limit64()
109   if( mem0.hardLimit>0 && (n>mem0.hardLimit || n==0) ){  in sqlite3_soft_heap_limit64()
110     n = mem0.hardLimit;  in sqlite3_soft_heap_limit64()
112   mem0.alarmThreshold = n;  in sqlite3_soft_heap_limit64()
114   AtomicStore(&mem0.nearlyFull, n>0 && n<=nUsed);  in sqlite3_soft_heap_limit64()
115   sqlite3_mutex_leave(mem0.mutex);  in sqlite3_soft_heap_limit64()
143   sqlite3_mutex_enter(mem0.mutex);  in sqlite3_hard_heap_limit64()
144   priorLimit = mem0.hardLimit;  in sqlite3_hard_heap_limit64()
146     mem0.hardLimit = n;  in sqlite3_hard_heap_limit64()
147     if( n<mem0.alarmThreshold || mem0.alarmThreshold==0 ){  in sqlite3_hard_heap_limit64()
148       mem0.alarmThreshold = n;  in sqlite3_hard_heap_limit64()
151   sqlite3_mutex_leave(mem0.mutex);  in sqlite3_hard_heap_limit64()
164   mem0.mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM);  in sqlite3MallocInit()
171   if( rc!=SQLITE_OK ) memset(&mem0, 0, sizeof(mem0));  in sqlite3MallocInit()
181   return AtomicLoad(&mem0.nearlyFull);  in sqlite3HeapNearlyFull()
191   memset(&mem0, 0, sizeof(mem0));  in sqlite3MallocEnd()
218   if( mem0.alarmThreshold<=0 ) return;  in sqlite3MallocAlarm()
219   sqlite3_mutex_leave(mem0.mutex);  in sqlite3MallocAlarm()
221   sqlite3_mutex_enter(mem0.mutex);  in sqlite3MallocAlarm()
231   assert( sqlite3_mutex_held(mem0.mutex) );  in mallocWithAlarm()
242   if( mem0.alarmThreshold>0 ){  in mallocWithAlarm()
244     if( nUsed >= mem0.alarmThreshold - nFull ){  in mallocWithAlarm()
245       AtomicStore(&mem0.nearlyFull, 1);  in mallocWithAlarm()
247       if( mem0.hardLimit ){  in mallocWithAlarm()
249         if( nUsed >= mem0.hardLimit - nFull ){  in mallocWithAlarm()
255       AtomicStore(&mem0.nearlyFull, 0);  in mallocWithAlarm()
260   if( p==0 && mem0.alarmThreshold>0 ){  in mallocWithAlarm()
303     sqlite3_mutex_enter(mem0.mutex);  in sqlite3Malloc()
305     sqlite3_mutex_leave(mem0.mutex);  in sqlite3Malloc()
398     sqlite3_mutex_enter(mem0.mutex);  in sqlite3_free()
402     sqlite3_mutex_leave(mem0.mutex);  in sqlite3_free()
530     sqlite3_mutex_enter(mem0.mutex);  in sqlite3Realloc()
534           mem0.alarmThreshold-nDiff ){  in sqlite3Realloc()
536       if( mem0.hardLimit>0 && nUsed >= mem0.hardLimit - nDiff ){  in sqlite3Realloc()
537         sqlite3_mutex_leave(mem0.mutex);  in sqlite3Realloc()
543     if( pNew==0 && mem0.alarmThreshold>0 ){  in sqlite3Realloc()
552     sqlite3_mutex_leave(mem0.mutex);  in sqlite3Realloc()