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add is_in_heap_region function

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This commit is contained in:
daan 2019-07-17 15:37:36 -07:00
parent 8390c46503
commit f646cc925d
2 changed files with 12 additions and 1 deletions
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10
src/memory.c
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@ -104,6 +104,16 @@ static size_t mi_good_commit_size(size_t size) {
return _mi_align_up(size, _mi_os_large_page_size());
}
// Return if a pointer points into a region reserved by us.
bool mi_is_in_heap_region(const void* p) {
size_t count = mi_atomic_read(&regions_count);
for (size_t i = 0; i < count; i++) {
uint8_t* start = (uint8_t*)mi_atomic_read_ptr(&regions[i].start);
if (start != NULL && (uint8_t*)p >= start && (uint8_t*)p < start + MI_REGION_SIZE) return true;
}
return false;
}
/* ----------------------------------------------------------------------------
Commit from a region
-----------------------------------------------------------------------------*/