e2bcf037d4
Rather than protecting dss operations with a mutex, use atomic operations. This has negligible impact on synchronization overhead during typical dss allocation, but is a substantial improvement for chunk_in_dss() and the newly added chunk_dss_mergeable(), which can be called multiple times during chunk deallocations. This change also has the advantage of avoiding tsd in deallocation paths associated with purging, which resolves potential deadlocks during thread exit due to attempted tsd resurrection. This resolves #425.
36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
/******************************************************************************/
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#ifdef JEMALLOC_H_TYPES
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#endif /* JEMALLOC_H_TYPES */
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/******************************************************************************/
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#ifdef JEMALLOC_H_STRUCTS
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#endif /* JEMALLOC_H_STRUCTS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_EXTERNS
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void *huge_malloc(tsdn_t *tsdn, arena_t *arena, size_t usize, bool zero);
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void *huge_palloc(tsdn_t *tsdn, arena_t *arena, size_t usize,
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size_t alignment, bool zero);
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bool huge_ralloc_no_move(tsdn_t *tsdn, void *ptr, size_t oldsize,
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size_t usize_min, size_t usize_max, bool zero);
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void *huge_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize,
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size_t usize, size_t alignment, bool zero, tcache_t *tcache);
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#ifdef JEMALLOC_JET
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typedef void (huge_dalloc_junk_t)(void *, size_t);
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extern huge_dalloc_junk_t *huge_dalloc_junk;
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#endif
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void huge_dalloc(tsdn_t *tsdn, void *ptr);
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arena_t *huge_aalloc(const void *ptr);
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size_t huge_salloc(tsdn_t *tsdn, const void *ptr);
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prof_tctx_t *huge_prof_tctx_get(tsdn_t *tsdn, const void *ptr);
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void huge_prof_tctx_set(tsdn_t *tsdn, const void *ptr, prof_tctx_t *tctx);
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void huge_prof_tctx_reset(tsdn_t *tsdn, const void *ptr);
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#endif /* JEMALLOC_H_EXTERNS */
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/******************************************************************************/
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#ifdef JEMALLOC_H_INLINES
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#endif /* JEMALLOC_H_INLINES */
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/******************************************************************************/
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