fde3e20cc0
The embedded tcache is initialized upon tsd initialization. The avail arrays for the tbins will be allocated / deallocated accordingly during init / cleanup. With this change, the pointer to the auto tcache will always be available, as long as we have access to the TSD. tcache_available() (called in tcache_get()) is provided to check if we should use tcache.
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
#ifndef JEMALLOC_INTERNAL_TSD_STRUCTS_H
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#define JEMALLOC_INTERNAL_TSD_STRUCTS_H
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#if (!defined(JEMALLOC_MALLOC_THREAD_CLEANUP) && !defined(JEMALLOC_TLS) && \
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!defined(_WIN32))
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struct tsd_init_block_s {
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ql_elm(tsd_init_block_t) link;
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pthread_t thread;
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void *data;
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};
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struct tsd_init_head_s {
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ql_head(tsd_init_block_t) blocks;
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malloc_mutex_t lock;
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};
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#endif
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#define MALLOC_TSD \
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/* O(name, type, [gs]et, init, cleanup) */ \
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O(tcache, tcache_t, yes, no, yes) \
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O(thread_allocated, uint64_t, yes, no, no) \
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O(thread_deallocated, uint64_t, yes, no, no) \
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O(prof_tdata, prof_tdata_t *, yes, no, yes) \
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O(iarena, arena_t *, yes, no, yes) \
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O(arena, arena_t *, yes, no, yes) \
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O(arenas_tdata, arena_tdata_t *,yes, no, yes) \
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O(narenas_tdata, unsigned, yes, no, no) \
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O(arenas_tdata_bypass, bool, no, no, no) \
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O(tcache_enabled, tcache_enabled_t, \
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yes, yes, no) \
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O(rtree_ctx, rtree_ctx_t, no, yes, no) \
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O(witnesses, witness_list_t, no, no, yes) \
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O(rtree_leaf_elm_witnesses, rtree_leaf_elm_witness_tsd_t, \
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no, no, no) \
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O(witness_fork, bool, yes, no, no)
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#define TSD_INITIALIZER { \
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tsd_state_uninitialized, \
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TCACHE_ZERO_INITIALIZER, \
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0, \
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0, \
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NULL, \
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NULL, \
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NULL, \
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NULL, \
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0, \
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false, \
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tcache_enabled_default, \
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RTREE_CTX_ZERO_INITIALIZER, \
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ql_head_initializer(witnesses), \
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RTREE_ELM_WITNESS_TSD_INITIALIZER, \
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false \
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}
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struct tsd_s {
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tsd_state_t state;
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#define O(n, t, gs, i, c) \
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t n;
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MALLOC_TSD
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#undef O
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};
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/*
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* Wrapper around tsd_t that makes it possible to avoid implicit conversion
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* between tsd_t and tsdn_t, where tsdn_t is "nullable" and has to be
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* explicitly converted to tsd_t, which is non-nullable.
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*/
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struct tsdn_s {
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tsd_t tsd;
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};
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static const tsd_t tsd_initializer = TSD_INITIALIZER;
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UNUSED static const void *malloc_tsd_no_cleanup = (void *)0;
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malloc_tsd_types(, tsd_t)
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#endif /* JEMALLOC_INTERNAL_TSD_STRUCTS_H */
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