151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
#ifndef JEMALLOC_INTERNAL_TCACHE_INLINES_H
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#define JEMALLOC_INTERNAL_TCACHE_INLINES_H
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#include "jemalloc/internal/bin.h"
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#include "jemalloc/internal/jemalloc_internal_types.h"
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#include "jemalloc/internal/sc.h"
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#include "jemalloc/internal/sz.h"
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#include "jemalloc/internal/util.h"
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static inline bool
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tcache_enabled_get(tsd_t *tsd) {
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return tsd_tcache_enabled_get(tsd);
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}
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static inline void
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tcache_enabled_set(tsd_t *tsd, bool enabled) {
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bool was_enabled = tsd_tcache_enabled_get(tsd);
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if (!was_enabled && enabled) {
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tsd_tcache_data_init(tsd);
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} else if (was_enabled && !enabled) {
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tcache_cleanup(tsd);
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}
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/* Commit the state last. Above calls check current state. */
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tsd_tcache_enabled_set(tsd, enabled);
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tsd_slow_update(tsd);
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}
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JEMALLOC_ALWAYS_INLINE void *
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tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
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size_t size, szind_t binind, bool zero, bool slow_path) {
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void *ret;
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bool tcache_success;
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assert(binind < SC_NBINS);
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cache_bin_t *bin = &tcache->bins[binind];
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ret = cache_bin_alloc(bin, &tcache_success);
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assert(tcache_success == (ret != NULL));
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if (unlikely(!tcache_success)) {
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bool tcache_hard_success;
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arena = arena_choose(tsd, arena);
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if (unlikely(arena == NULL)) {
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return NULL;
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}
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ret = tcache_alloc_small_hard(tsd_tsdn(tsd), arena, tcache,
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bin, binind, &tcache_hard_success);
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if (tcache_hard_success == false) {
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return NULL;
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}
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}
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assert(ret);
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if (unlikely(zero)) {
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size_t usize = sz_index2size(binind);
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assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize);
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memset(ret, 0, usize);
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}
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if (config_stats) {
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bin->tstats.nrequests++;
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}
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return ret;
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}
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JEMALLOC_ALWAYS_INLINE void *
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tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
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szind_t binind, bool zero, bool slow_path) {
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void *ret;
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bool tcache_success;
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assert(binind >= SC_NBINS && binind < nhbins);
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cache_bin_t *bin = &tcache->bins[binind];
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ret = cache_bin_alloc(bin, &tcache_success);
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assert(tcache_success == (ret != NULL));
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if (unlikely(!tcache_success)) {
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/*
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* Only allocate one large object at a time, because it's quite
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* expensive to create one and not use it.
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*/
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arena = arena_choose(tsd, arena);
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if (unlikely(arena == NULL)) {
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return NULL;
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}
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ret = large_malloc(tsd_tsdn(tsd), arena, sz_s2u(size), zero);
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if (ret == NULL) {
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return NULL;
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}
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} else {
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if (unlikely(zero)) {
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size_t usize = sz_index2size(binind);
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assert(usize <= tcache_maxclass);
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memset(ret, 0, usize);
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}
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if (config_stats) {
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bin->tstats.nrequests++;
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}
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}
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return ret;
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}
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JEMALLOC_ALWAYS_INLINE void
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tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
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bool slow_path) {
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assert(tcache_salloc(tsd_tsdn(tsd), ptr)
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<= SC_SMALL_MAXCLASS);
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cache_bin_t *bin = &tcache->bins[binind];
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if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
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unsigned remain = cache_bin_info_ncached_max(
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&tcache_bin_info[binind]) >> opt_lg_tcache_flush_small_div;
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tcache_bin_flush_small(tsd, tcache, bin, binind, remain);
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bool ret = cache_bin_dalloc_easy(bin, ptr);
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assert(ret);
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}
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}
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JEMALLOC_ALWAYS_INLINE void
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tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
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bool slow_path) {
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assert(tcache_salloc(tsd_tsdn(tsd), ptr)
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> SC_SMALL_MAXCLASS);
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assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= tcache_maxclass);
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cache_bin_t *bin = &tcache->bins[binind];
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if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
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unsigned remain = cache_bin_info_ncached_max(
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&tcache_bin_info[binind]) >> opt_lg_tcache_flush_large_div;
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tcache_bin_flush_large(tsd, tcache, bin, binind, remain);
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bool ret = cache_bin_dalloc_easy(bin, ptr);
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assert(ret);
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}
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}
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JEMALLOC_ALWAYS_INLINE tcache_t *
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tcaches_get(tsd_t *tsd, unsigned ind) {
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tcaches_t *elm = &tcaches[ind];
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if (unlikely(elm->tcache == NULL)) {
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malloc_printf("<jemalloc>: invalid tcache id (%u).\n", ind);
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abort();
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} else if (unlikely(elm->tcache == TCACHES_ELM_NEED_REINIT)) {
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elm->tcache = tcache_create_explicit(tsd);
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}
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return elm->tcache;
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}
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#endif /* JEMALLOC_INTERNAL_TCACHE_INLINES_H */
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