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add initial support for visiting abandoned segments per subprocess, upstream for python/cpython#114133

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daanx
2024-06-02 07:47:08 -07:00
parent f93fb900b7
commit 8f874555d5
8 changed files with 206 additions and 88 deletions
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10
include/mimalloc/internal.h
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@@ -79,11 +79,12 @@ extern mi_decl_cache_align const mi_page_t _mi_page_empty;
bool _mi_is_main_thread(void);
size_t _mi_current_thread_count(void);
bool _mi_preloading(void); // true while the C runtime is not initialized yet
mi_threadid_t _mi_thread_id(void) mi_attr_noexcept;
mi_heap_t* _mi_heap_main_get(void); // statically allocated main backing heap
void _mi_thread_done(mi_heap_t* heap);
void _mi_thread_data_collect(void);
void _mi_tld_init(mi_tld_t* tld, mi_heap_t* bheap);
mi_threadid_t _mi_thread_id(void) mi_attr_noexcept;
mi_heap_t* _mi_heap_main_get(void); // statically allocated main backing heap
mi_subproc_t* _mi_subproc_from_id(mi_subproc_id_t subproc_id);
// os.c
void _mi_os_init(void); // called from process init
@@ -136,7 +137,7 @@ typedef struct mi_arena_field_cursor_s { // abstract struct
mi_subproc_t* subproc;
} mi_arena_field_cursor_t;
void _mi_arena_field_cursor_init(mi_heap_t* heap, mi_subproc_t* subproc, mi_arena_field_cursor_t* current);
mi_segment_t* _mi_arena_segment_clear_abandoned_next(mi_arena_field_cursor_t* previous);
mi_segment_t* _mi_arena_segment_clear_abandoned_next(mi_arena_field_cursor_t* previous, bool visit_all);
// "segment-map.c"
void _mi_segment_map_allocated_at(const mi_segment_t* segment);
@@ -158,6 +159,7 @@ void _mi_segments_collect(bool force, mi_segments_tld_t* tld);
void _mi_abandoned_reclaim_all(mi_heap_t* heap, mi_segments_tld_t* tld);
void _mi_abandoned_await_readers(void);
bool _mi_segment_attempt_reclaim(mi_heap_t* heap, mi_segment_t* segment);
bool _mi_segment_visit_blocks(mi_segment_t* segment, int heap_tag, bool visit_blocks, mi_block_visit_fun* visitor, void* arg);
// "page.c"
void* _mi_malloc_generic(mi_heap_t* heap, size_t size, bool zero, size_t huge_alignment) mi_attr_noexcept mi_attr_malloc;
@@ -189,6 +191,8 @@ void _mi_heap_set_default_direct(mi_heap_t* heap);
bool _mi_heap_memid_is_suitable(mi_heap_t* heap, mi_memid_t memid);
void _mi_heap_unsafe_destroy_all(void);
mi_heap_t* _mi_heap_by_tag(mi_heap_t* heap, uint8_t tag);
void _mi_heap_area_init(mi_heap_area_t* area, mi_page_t* page);
bool _mi_heap_area_visit_blocks(const mi_heap_area_t* area, mi_page_t* page, mi_block_visit_fun* visitor, void* arg);
// "stats.c"
void _mi_stats_done(mi_stats_t* stats);