65 lines
3.0 KiB
C
65 lines
3.0 KiB
C
#ifndef JEMALLOC_INTERNAL_EXTENT2_H
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#define JEMALLOC_INTERNAL_EXTENT2_H
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#include "jemalloc/internal/ecache.h"
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#include "jemalloc/internal/ehooks.h"
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#include "jemalloc/internal/ph.h"
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#include "jemalloc/internal/rtree.h"
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/*
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* This module contains the page-level allocator. It chooses the addresses that
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* allocations requested by other modules will inhabit, and updates the global
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* metadata to reflect allocation/deallocation/purging decisions.
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*
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* The naming ("extent2" for the module, and "extent_" or "extents_" for most of
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* the functions) is historical. Eventually, the naming should be updated to
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* reflect the functionality. Similarly, the utilization stats live here for no
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* particular reason. This will also be changed, but much more immediately.
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*/
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/*
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* When reuse (and split) an active extent, (1U << opt_lg_extent_max_active_fit)
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* is the max ratio between the size of the active extent and the new extent.
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*/
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#define LG_EXTENT_MAX_ACTIVE_FIT_DEFAULT 6
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extern size_t opt_lg_extent_max_active_fit;
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extern rtree_t extents_rtree;
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edata_t *extents_alloc(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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ecache_t *ecache, void *new_addr, size_t size, size_t pad, size_t alignment,
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bool slab, szind_t szind, bool *zero, bool *commit);
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edata_t *extents_alloc_grow(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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ecache_t *ecache, void *new_addr, size_t size, size_t pad, size_t alignment,
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bool slab, szind_t szind, bool *zero, bool *commit);
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void extents_dalloc(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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ecache_t *ecache, edata_t *edata);
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edata_t *extents_evict(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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ecache_t *ecache, size_t npages_min);
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edata_t *extent_alloc_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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void *new_addr, size_t size, size_t pad, size_t alignment, bool slab,
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szind_t szind, bool *zero, bool *commit);
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void extent_dalloc_gap(tsdn_t *tsdn, arena_t *arena, edata_t *edata);
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void extent_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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edata_t *edata);
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void extent_destroy_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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edata_t *edata);
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bool extent_commit_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata,
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size_t offset, size_t length);
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bool extent_decommit_wrapper(tsdn_t *tsdn, ehooks_t *ehooks, edata_t *edata,
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size_t offset, size_t length);
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bool extent_purge_lazy_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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edata_t *edata, size_t offset, size_t length);
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bool extent_purge_forced_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
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edata_t *edata, size_t offset, size_t length);
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edata_t *extent_split_wrapper(tsdn_t *tsdn, edata_cache_t *edata_cache,
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ehooks_t *ehooks, edata_t *edata, size_t size_a, szind_t szind_a,
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bool slab_a, size_t size_b, szind_t szind_b, bool slab_b);
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bool extent_merge_wrapper(tsdn_t *tsdn, ehooks_t *ehooks,
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edata_cache_t *edata_cache, edata_t *a, edata_t *b);
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bool extent_boot(void);
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#endif /* JEMALLOC_INTERNAL_EXTENT2_H */
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