78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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#include "jemalloc/internal/jemalloc_preamble.h"
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#include "jemalloc/internal/jemalloc_internal_includes.h"
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void
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inspect_extent_util_stats_get(tsdn_t *tsdn, const void *ptr, size_t *nfree,
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size_t *nregs, size_t *size) {
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assert(ptr != NULL && nfree != NULL && nregs != NULL && size != NULL);
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const extent_t *extent = iealloc(tsdn, ptr);
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if (unlikely(extent == NULL)) {
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*nfree = *nregs = *size = 0;
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return;
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}
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*size = extent_size_get(extent);
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if (!extent_slab_get(extent)) {
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*nfree = 0;
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*nregs = 1;
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} else {
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*nfree = extent_nfree_get(extent);
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*nregs = bin_infos[extent_szind_get(extent)].nregs;
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assert(*nfree <= *nregs);
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assert(*nfree * extent_usize_get(extent) <= *size);
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}
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}
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void
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inspect_extent_util_stats_verbose_get(tsdn_t *tsdn, const void *ptr,
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size_t *nfree, size_t *nregs, size_t *size, size_t *bin_nfree,
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size_t *bin_nregs, void **slabcur_addr) {
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assert(ptr != NULL && nfree != NULL && nregs != NULL && size != NULL
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&& bin_nfree != NULL && bin_nregs != NULL && slabcur_addr != NULL);
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const extent_t *extent = iealloc(tsdn, ptr);
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if (unlikely(extent == NULL)) {
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*nfree = *nregs = *size = *bin_nfree = *bin_nregs = 0;
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*slabcur_addr = NULL;
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return;
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}
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*size = extent_size_get(extent);
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if (!extent_slab_get(extent)) {
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*nfree = *bin_nfree = *bin_nregs = 0;
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*nregs = 1;
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*slabcur_addr = NULL;
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return;
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}
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*nfree = extent_nfree_get(extent);
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const szind_t szind = extent_szind_get(extent);
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*nregs = bin_infos[szind].nregs;
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assert(*nfree <= *nregs);
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assert(*nfree * extent_usize_get(extent) <= *size);
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const arena_t *arena = (arena_t *)atomic_load_p(
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&arenas[extent_arena_ind_get(extent)], ATOMIC_RELAXED);
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assert(arena != NULL);
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const unsigned binshard = extent_binshard_get(extent);
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bin_t *bin = &arena->bins[szind].bin_shards[binshard];
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malloc_mutex_lock(tsdn, &bin->lock);
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if (config_stats) {
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*bin_nregs = *nregs * bin->stats.curslabs;
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assert(*bin_nregs >= bin->stats.curregs);
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*bin_nfree = *bin_nregs - bin->stats.curregs;
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} else {
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*bin_nfree = *bin_nregs = 0;
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}
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extent_t *slab;
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if (bin->slabcur != NULL) {
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slab = bin->slabcur;
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} else {
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slab = extent_heap_first(&bin->slabs_nonfull);
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}
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*slabcur_addr = slab != NULL ? extent_addr_get(slab) : NULL;
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malloc_mutex_unlock(tsdn, &bin->lock);
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}
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