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wip: purgeable arenas; fix asan warnings

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daanx 2023-04-03 13:53:43 -07:00
parent fcec09832a
commit 94a867869e
4 changed files with 27 additions and 9 deletions
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12
src/segment.c
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@ -400,12 +400,18 @@ static void mi_segment_os_free(mi_segment_t* segment, mi_segments_tld_t* tld) {
|| !_mi_segment_cache_push(segment, size, segment->memid, &segment->commit_mask, &segment->decommit_mask, segment->mem_is_large, segment->mem_is_pinned, tld->os))
#endif
{
if (!segment->mem_is_pinned) {
// if not all committed, an arena may decommit the whole area, but that double counts
// the already decommitted parts; adjust for that in the stats.
if (!mi_commit_mask_is_full(&segment->commit_mask)) {
const size_t csize = _mi_commit_mask_committed_size(&segment->commit_mask, size);
if (csize > 0) { _mi_stat_decrease(&_mi_stats_main.committed, csize); }
mi_assert_internal(size > csize);
if (size > csize) {
_mi_stat_increase(&_mi_stats_main.committed, size - csize);
}
}
_mi_abandoned_await_readers(); // wait until safe to free
_mi_arena_free(segment, mi_segment_size(segment), segment->mem_alignment, segment->mem_align_offset, segment->memid, segment->mem_is_pinned /* pretend not committed to not double count decommits */, tld->stats);
_mi_arena_free(segment, mi_segment_size(segment), segment->mem_alignment, segment->mem_align_offset, segment->memid,
mi_commit_mask_is_full(&segment->commit_mask) /* all committed? */, tld->stats);
}
}