1b6e43507e
Synchronize tcaches with tcaches_mtx rather than ctl_mtx. Add missing
synchronization for tcache flushing. This bug was introduced by
1cb181ed63 (Implement explicit tcache
support.), which was first released in 4.0.0.
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
#ifndef JEMALLOC_INTERNAL_TCACHE_EXTERNS_H
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#define JEMALLOC_INTERNAL_TCACHE_EXTERNS_H
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extern bool opt_tcache;
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extern ssize_t opt_lg_tcache_max;
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extern tcache_bin_info_t *tcache_bin_info;
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/*
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* Number of tcache bins. There are NBINS small-object bins, plus 0 or more
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* large-object bins.
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*/
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extern unsigned nhbins;
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/* Maximum cached size class. */
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extern size_t tcache_maxclass;
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/*
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* Explicit tcaches, managed via the tcache.{create,flush,destroy} mallctls and
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* usable via the MALLOCX_TCACHE() flag. The automatic per thread tcaches are
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* completely disjoint from this data structure. tcaches starts off as a sparse
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* array, so it has no physical memory footprint until individual pages are
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* touched. This allows the entire array to be allocated the first time an
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* explicit tcache is created without a disproportionate impact on memory usage.
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*/
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extern tcaches_t *tcaches;
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size_t tcache_salloc(tsdn_t *tsdn, const void *ptr);
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void tcache_event_hard(tsd_t *tsd, tcache_t *tcache);
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void *tcache_alloc_small_hard(tsdn_t *tsdn, arena_t *arena, tcache_t *tcache,
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tcache_bin_t *tbin, szind_t binind, bool *tcache_success);
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void tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
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szind_t binind, unsigned rem);
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void tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
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unsigned rem, tcache_t *tcache);
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void tcache_arena_reassociate(tsdn_t *tsdn, tcache_t *tcache,
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arena_t *oldarena, arena_t *newarena);
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tcache_t *tcache_get_hard(tsd_t *tsd);
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tcache_t *tcache_create(tsdn_t *tsdn, arena_t *arena);
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void tcache_cleanup(tsd_t *tsd);
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void tcache_stats_merge(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena);
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bool tcaches_create(tsd_t *tsd, unsigned *r_ind);
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void tcaches_flush(tsd_t *tsd, unsigned ind);
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void tcaches_destroy(tsd_t *tsd, unsigned ind);
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bool tcache_boot(tsdn_t *tsdn);
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void tcache_prefork(tsdn_t *tsdn);
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void tcache_postfork_parent(tsdn_t *tsdn);
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void tcache_postfork_child(tsdn_t *tsdn);
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#endif /* JEMALLOC_INTERNAL_TCACHE_EXTERNS_H */
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