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Add some double-free detection to the slot allocator.

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David Reid
2021-08-18 20:51:34 +10:00
parent ce6108feff
commit 8d5b3d16e4
1 changed files with 9 additions and 0 deletions
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miniaudio.h
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@@ -38994,6 +38994,15 @@ MA_API ma_result ma_slot_allocator_free(ma_slot_allocator* pAllocator, ma_uint64
oldBitfield = c89atomic_load_32(&pAllocator->pGroups[iGroup].bitfield); /* <-- This copy must happen. The compiler must not optimize this away. */
newBitfield = oldBitfield & ~(1 << iBit);
/* Debugging for checking for double-frees. */
#if defined(MA_DEBUG_OUTPUT)
{
if ((oldBitfield & (1 << iBit)) == 0) {
MA_ASSERT(MA_FALSE); /* Double free detected.*/
}
}
#endif
if (c89atomic_compare_and_swap_32(&pAllocator->pGroups[iGroup].bitfield, oldBitfield, newBitfield) == oldBitfield) {
c89atomic_fetch_sub_32(&pAllocator->count, 1);
return MA_SUCCESS;