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daan 2019-08-27 18:08:03 -07:00
parent 18e02c3766
commit a551f3abc4
3 changed files with 25 additions and 14 deletions
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12
src/memory.c
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@ -47,6 +47,7 @@ bool _mi_os_reset(void* p, size_t size, mi_stats_t* stats);
bool _mi_os_unreset(void* p, size_t size, mi_stats_t* stats);
void* _mi_os_alloc_aligned(size_t size, size_t alignment, bool commit, bool* large, mi_os_tld_t* tld);
bool _mi_os_is_huge_reserved(void* p);
void _mi_os_free_ex(void* p, size_t size, bool was_committed, mi_stats_t* stats);
// Constants
#if (MI_INTPTR_SIZE==8)
@ -179,7 +180,7 @@ static bool mi_region_commit_blocks(mem_region_t* region, size_t idx, size_t bit
}
if (start != NULL) {
// free it if we didn't succeed to save it to some other region
_mi_os_free(start, MI_REGION_SIZE, tld->stats);
_mi_os_free_ex(start, MI_REGION_SIZE, region_commit, tld->stats);
}
// and continue with the memory at our index
info = mi_atomic_read(&region->info);
@ -426,6 +427,10 @@ void _mi_mem_free(void* p, size_t size, size_t id, mi_stats_t* stats) {
// _mi_os_reset(p,size,stats);
// _mi_os_decommit(p,size,stats); // if !is_committed
}
if (!is_eager_committed) {
// adjust commit statistics as we commit again when re-using the same slot
_mi_stat_decrease(&stats->committed, mi_good_commit_size(size));
}
// TODO: should we free empty regions? currently only done _mi_mem_collect.
// this frees up virtual address space which might be useful on 32-bit systems?
@ -456,9 +461,10 @@ void _mi_mem_collect(mi_stats_t* stats) {
} while(m == 0 && !mi_atomic_cas_weak(&region->map, ~((uintptr_t)0), 0 ));
if (m == 0) {
// on success, free the whole region (unless it was huge reserved)
void* start = mi_region_info_read(mi_atomic_read(&region->info), NULL, NULL);
bool is_eager_committed;
void* start = mi_region_info_read(mi_atomic_read(&region->info), NULL, &is_eager_committed);
if (start != NULL && !_mi_os_is_huge_reserved(start)) {
_mi_os_free(start, MI_REGION_SIZE, stats);
_mi_os_free_ex(start, MI_REGION_SIZE, is_eager_committed, stats);
}
// and release
mi_atomic_write(&region->info,0);