mirrors/mimalloc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add NULL check in _mi_segment_of

Browse Source
This commit is contained in:
daan 2022-11-07 17:12:14 -08:00
parent 89ba6cc2fa
commit 67439bb4e5
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/segment-cache.c
View File

@ -285,8 +285,9 @@ void _mi_segment_map_freed_at(const mi_segment_t* segment) {
// Determine the segment belonging to a pointer or NULL if it is not in a valid segment. // Determine the segment belonging to a pointer or NULL if it is not in a valid segment.
static mi_segment_t* _mi_segment_of(const void* p) { static mi_segment_t* _mi_segment_of(const void* p) {
if (p == NULL) return NULL;
mi_segment_t* segment = _mi_ptr_segment(p); mi_segment_t* segment = _mi_ptr_segment(p);
if (segment == NULL) return NULL; mi_assert_internal(segment != NULL);
size_t bitidx; size_t bitidx;
size_t index = mi_segment_map_index_of(segment, &bitidx); size_t index = mi_segment_map_index_of(segment, &bitidx);
// fast path: for any pointer to valid small/medium/large object or first MI_SEGMENT_SIZE in huge // fast path: for any pointer to valid small/medium/large object or first MI_SEGMENT_SIZE in huge