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fix multi-threaded access in stats merging

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Daan 2025-03-06 19:52:06 -08:00
parent 0f60b12769
commit 71c61c4b91
2 changed files with 11 additions and 6 deletions
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5
include/mimalloc/atomic.h
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@ -129,6 +129,11 @@ static inline intptr_t mi_atomic_subi(_Atomic(intptr_t)*p, intptr_t sub);
static inline int64_t mi_atomic_addi64_relaxed(volatile int64_t* p, int64_t add) {
return mi_atomic(fetch_add_explicit)((_Atomic(int64_t)*)p, add, mi_memory_order(relaxed));
}
static inline void mi_atomic_void_addi64_relaxed(volatile int64_t* p, int64_t add) {
if (add != 0) {
mi_atomic(fetch_add_explicit)((_Atomic(int64_t)*)p, add, mi_memory_order(relaxed));
}
}
static inline void mi_atomic_maxi64_relaxed(volatile int64_t* p, int64_t x) {
int64_t current = mi_atomic_load_relaxed((_Atomic(int64_t)*)p);
while (current < x && !mi_atomic_cas_weak_release((_Atomic(int64_t)*)p, &current, x)) { /* nothing */ };