c86c8f4ffb
Add the extent_destroy_t extent destruction hook to extent_hooks_t, and use it during arena destruction. This hook explicitly communicates to the callee that the extent must be destroyed or tracked for later reuse, lest it be permanently leaked. Prior to this change, retained extents could unintentionally be leaked if extent retention was enabled. This resolves #560.
68 lines
3.0 KiB
C
68 lines
3.0 KiB
C
#ifndef JEMALLOC_INTERNAL_EXTENT_EXTERNS_H
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#define JEMALLOC_INTERNAL_EXTENT_EXTERNS_H
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#include "jemalloc/internal/rb.h"
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#include "jemalloc/internal/ph.h"
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extern rtree_t extents_rtree;
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extern const extent_hooks_t extent_hooks_default;
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extent_t *extent_alloc(tsdn_t *tsdn, arena_t *arena);
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void extent_dalloc(tsdn_t *tsdn, arena_t *arena, extent_t *extent);
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extent_hooks_t *extent_hooks_get(arena_t *arena);
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extent_hooks_t *extent_hooks_set(arena_t *arena, extent_hooks_t *extent_hooks);
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#ifdef JEMALLOC_JET
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size_t extent_size_quantize_floor(size_t size);
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size_t extent_size_quantize_ceil(size_t size);
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#endif
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rb_proto(, extent_avail_, extent_tree_t, extent_t)
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ph_proto(, extent_heap_, extent_heap_t, extent_t)
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bool extents_init(tsdn_t *tsdn, extents_t *extents, extent_state_t state,
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bool delay_coalesce);
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extent_state_t extents_state_get(const extents_t *extents);
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size_t extents_npages_get(extents_t *extents);
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extent_t *extents_alloc(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extents_t *extents, void *new_addr,
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size_t size, size_t pad, size_t alignment, bool slab, szind_t szind,
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bool *zero, bool *commit);
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void extents_dalloc(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extents_t *extents, extent_t *extent);
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extent_t *extents_evict(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extents_t *extents, size_t npages_min);
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void extents_prefork(tsdn_t *tsdn, extents_t *extents);
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void extents_postfork_parent(tsdn_t *tsdn, extents_t *extents);
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void extents_postfork_child(tsdn_t *tsdn, extents_t *extents);
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extent_t *extent_alloc_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, void *new_addr, size_t size, size_t pad,
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size_t alignment, bool slab, szind_t szind, bool *zero, bool *commit);
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void extent_dalloc_gap(tsdn_t *tsdn, arena_t *arena, extent_t *extent);
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void extent_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent);
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void extent_destroy_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent);
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bool extent_commit_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent, size_t offset,
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size_t length);
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bool extent_decommit_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent, size_t offset,
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size_t length);
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bool extent_purge_lazy_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent, size_t offset,
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size_t length);
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bool extent_purge_forced_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent, size_t offset,
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size_t length);
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extent_t *extent_split_wrapper(tsdn_t *tsdn, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *extent, size_t size_a,
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szind_t szind_a, 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, arena_t *arena,
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extent_hooks_t **r_extent_hooks, extent_t *a, extent_t *b);
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bool extent_boot(void);
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#endif /* JEMALLOC_INTERNAL_EXTENT_EXTERNS_H */
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