| #ifndef JEMALLOC_INTERNAL_EXTENT_INLINES_H |
| #define JEMALLOC_INTERNAL_EXTENT_INLINES_H |
| |
| #include "jemalloc/internal/mutex.h" |
| #include "jemalloc/internal/mutex_pool.h" |
| #include "jemalloc/internal/pages.h" |
| #include "jemalloc/internal/prng.h" |
| #include "jemalloc/internal/ql.h" |
| #include "jemalloc/internal/sz.h" |
| |
| static inline void |
| extent_lock(tsdn_t *tsdn, extent_t *extent) { |
| assert(extent != NULL); |
| mutex_pool_lock(tsdn, &extent_mutex_pool, (uintptr_t)extent); |
| } |
| |
| static inline void |
| extent_unlock(tsdn_t *tsdn, extent_t *extent) { |
| assert(extent != NULL); |
| mutex_pool_unlock(tsdn, &extent_mutex_pool, (uintptr_t)extent); |
| } |
| |
| static inline void |
| extent_lock2(tsdn_t *tsdn, extent_t *extent1, extent_t *extent2) { |
| assert(extent1 != NULL && extent2 != NULL); |
| mutex_pool_lock2(tsdn, &extent_mutex_pool, (uintptr_t)extent1, |
| (uintptr_t)extent2); |
| } |
| |
| static inline void |
| extent_unlock2(tsdn_t *tsdn, extent_t *extent1, extent_t *extent2) { |
| assert(extent1 != NULL && extent2 != NULL); |
| mutex_pool_unlock2(tsdn, &extent_mutex_pool, (uintptr_t)extent1, |
| (uintptr_t)extent2); |
| } |
| |
| static inline arena_t * |
| extent_arena_get(const extent_t *extent) { |
| unsigned arena_ind = (unsigned)((extent->e_bits & |
| EXTENT_BITS_ARENA_MASK) >> EXTENT_BITS_ARENA_SHIFT); |
| /* |
| * The following check is omitted because we should never actually read |
| * a NULL arena pointer. |
| */ |
| if (false && arena_ind >= MALLOCX_ARENA_LIMIT) { |
| return NULL; |
| } |
| assert(arena_ind < MALLOCX_ARENA_LIMIT); |
| return (arena_t *)atomic_load_p(&arenas[arena_ind], ATOMIC_ACQUIRE); |
| } |
| |
| static inline szind_t |
| extent_szind_get_maybe_invalid(const extent_t *extent) { |
| szind_t szind = (szind_t)((extent->e_bits & EXTENT_BITS_SZIND_MASK) >> |
| EXTENT_BITS_SZIND_SHIFT); |
| assert(szind <= NSIZES); |
| return szind; |
| } |
| |
| static inline szind_t |
| extent_szind_get(const extent_t *extent) { |
| szind_t szind = extent_szind_get_maybe_invalid(extent); |
| assert(szind < NSIZES); /* Never call when "invalid". */ |
| return szind; |
| } |
| |
| static inline size_t |
| extent_usize_get(const extent_t *extent) { |
| return sz_index2size(extent_szind_get(extent)); |
| } |
| |
| static inline size_t |
| extent_sn_get(const extent_t *extent) { |
| return (size_t)((extent->e_bits & EXTENT_BITS_SN_MASK) >> |
| EXTENT_BITS_SN_SHIFT); |
| } |
| |
| static inline extent_state_t |
| extent_state_get(const extent_t *extent) { |
| return (extent_state_t)((extent->e_bits & EXTENT_BITS_STATE_MASK) >> |
| EXTENT_BITS_STATE_SHIFT); |
| } |
| |
| static inline bool |
| extent_zeroed_get(const extent_t *extent) { |
| return (bool)((extent->e_bits & EXTENT_BITS_ZEROED_MASK) >> |
| EXTENT_BITS_ZEROED_SHIFT); |
| } |
| |
| static inline bool |
| extent_committed_get(const extent_t *extent) { |
| return (bool)((extent->e_bits & EXTENT_BITS_COMMITTED_MASK) >> |
| EXTENT_BITS_COMMITTED_SHIFT); |
| } |
| |
| static inline bool |
| extent_dumpable_get(const extent_t *extent) { |
| return (bool)((extent->e_bits & EXTENT_BITS_DUMPABLE_MASK) >> |
| EXTENT_BITS_DUMPABLE_SHIFT); |
| } |
| |
| static inline bool |
| extent_slab_get(const extent_t *extent) { |
| return (bool)((extent->e_bits & EXTENT_BITS_SLAB_MASK) >> |
| EXTENT_BITS_SLAB_SHIFT); |
| } |
| |
| static inline unsigned |
| extent_nfree_get(const extent_t *extent) { |
| assert(extent_slab_get(extent)); |
| return (unsigned)((extent->e_bits & EXTENT_BITS_NFREE_MASK) >> |
| EXTENT_BITS_NFREE_SHIFT); |
| } |
| |
| static inline void * |
| extent_base_get(const extent_t *extent) { |
| assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) || |
| !extent_slab_get(extent)); |
| return PAGE_ADDR2BASE(extent->e_addr); |
| } |
| |
| static inline void * |
| extent_addr_get(const extent_t *extent) { |
| assert(extent->e_addr == PAGE_ADDR2BASE(extent->e_addr) || |
| !extent_slab_get(extent)); |
| return extent->e_addr; |
| } |
| |
| static inline size_t |
| extent_size_get(const extent_t *extent) { |
| return (extent->e_size_esn & EXTENT_SIZE_MASK); |
| } |
| |
| static inline size_t |
| extent_esn_get(const extent_t *extent) { |
| return (extent->e_size_esn & EXTENT_ESN_MASK); |
| } |
| |
| static inline size_t |
| extent_bsize_get(const extent_t *extent) { |
| return extent->e_bsize; |
| } |
| |
| static inline void * |
| extent_before_get(const extent_t *extent) { |
| return (void *)((uintptr_t)extent_base_get(extent) - PAGE); |
| } |
| |
| static inline void * |
| extent_last_get(const extent_t *extent) { |
| return (void *)((uintptr_t)extent_base_get(extent) + |
| extent_size_get(extent) - PAGE); |
| } |
| |
| static inline void * |
| extent_past_get(const extent_t *extent) { |
| return (void *)((uintptr_t)extent_base_get(extent) + |
| extent_size_get(extent)); |
| } |
| |
| static inline arena_slab_data_t * |
| extent_slab_data_get(extent_t *extent) { |
| assert(extent_slab_get(extent)); |
| return &extent->e_slab_data; |
| } |
| |
| static inline const arena_slab_data_t * |
| extent_slab_data_get_const(const extent_t *extent) { |
| assert(extent_slab_get(extent)); |
| return &extent->e_slab_data; |
| } |
| |
| static inline prof_tctx_t * |
| extent_prof_tctx_get(const extent_t *extent) { |
| return (prof_tctx_t *)atomic_load_p(&extent->e_prof_tctx, |
| ATOMIC_ACQUIRE); |
| } |
| |
| static inline void |
| extent_arena_set(extent_t *extent, arena_t *arena) { |
| unsigned arena_ind = (arena != NULL) ? arena_ind_get(arena) : ((1U << |
| MALLOCX_ARENA_BITS) - 1); |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ARENA_MASK) | |
| ((uint64_t)arena_ind << EXTENT_BITS_ARENA_SHIFT); |
| } |
| |
| static inline void |
| extent_addr_set(extent_t *extent, void *addr) { |
| extent->e_addr = addr; |
| } |
| |
| static inline void |
| extent_addr_randomize(UNUSED tsdn_t *tsdn, extent_t *extent, size_t alignment) { |
| assert(extent_base_get(extent) == extent_addr_get(extent)); |
| |
| if (alignment < PAGE) { |
| unsigned lg_range = LG_PAGE - |
| lg_floor(CACHELINE_CEILING(alignment)); |
| size_t r; |
| if (!tsdn_null(tsdn)) { |
| tsd_t *tsd = tsdn_tsd(tsdn); |
| r = (size_t)prng_lg_range_u64( |
| tsd_offset_statep_get(tsd), lg_range); |
| } else { |
| r = prng_lg_range_zu( |
| &extent_arena_get(extent)->offset_state, |
| lg_range, true); |
| } |
| uintptr_t random_offset = ((uintptr_t)r) << (LG_PAGE - |
| lg_range); |
| extent->e_addr = (void *)((uintptr_t)extent->e_addr + |
| random_offset); |
| assert(ALIGNMENT_ADDR2BASE(extent->e_addr, alignment) == |
| extent->e_addr); |
| } |
| } |
| |
| static inline void |
| extent_size_set(extent_t *extent, size_t size) { |
| assert((size & ~EXTENT_SIZE_MASK) == 0); |
| extent->e_size_esn = size | (extent->e_size_esn & ~EXTENT_SIZE_MASK); |
| } |
| |
| static inline void |
| extent_esn_set(extent_t *extent, size_t esn) { |
| extent->e_size_esn = (extent->e_size_esn & ~EXTENT_ESN_MASK) | (esn & |
| EXTENT_ESN_MASK); |
| } |
| |
| static inline void |
| extent_bsize_set(extent_t *extent, size_t bsize) { |
| extent->e_bsize = bsize; |
| } |
| |
| static inline void |
| extent_szind_set(extent_t *extent, szind_t szind) { |
| assert(szind <= NSIZES); /* NSIZES means "invalid". */ |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SZIND_MASK) | |
| ((uint64_t)szind << EXTENT_BITS_SZIND_SHIFT); |
| } |
| |
| static inline void |
| extent_nfree_set(extent_t *extent, unsigned nfree) { |
| assert(extent_slab_get(extent)); |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_NFREE_MASK) | |
| ((uint64_t)nfree << EXTENT_BITS_NFREE_SHIFT); |
| } |
| |
| static inline void |
| extent_nfree_inc(extent_t *extent) { |
| assert(extent_slab_get(extent)); |
| extent->e_bits += ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT); |
| } |
| |
| static inline void |
| extent_nfree_dec(extent_t *extent) { |
| assert(extent_slab_get(extent)); |
| extent->e_bits -= ((uint64_t)1U << EXTENT_BITS_NFREE_SHIFT); |
| } |
| |
| static inline void |
| extent_sn_set(extent_t *extent, size_t sn) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SN_MASK) | |
| ((uint64_t)sn << EXTENT_BITS_SN_SHIFT); |
| } |
| |
| static inline void |
| extent_state_set(extent_t *extent, extent_state_t state) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_STATE_MASK) | |
| ((uint64_t)state << EXTENT_BITS_STATE_SHIFT); |
| } |
| |
| static inline void |
| extent_zeroed_set(extent_t *extent, bool zeroed) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_ZEROED_MASK) | |
| ((uint64_t)zeroed << EXTENT_BITS_ZEROED_SHIFT); |
| } |
| |
| static inline void |
| extent_committed_set(extent_t *extent, bool committed) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_COMMITTED_MASK) | |
| ((uint64_t)committed << EXTENT_BITS_COMMITTED_SHIFT); |
| } |
| |
| static inline void |
| extent_dumpable_set(extent_t *extent, bool dumpable) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_DUMPABLE_MASK) | |
| ((uint64_t)dumpable << EXTENT_BITS_DUMPABLE_SHIFT); |
| } |
| |
| static inline void |
| extent_slab_set(extent_t *extent, bool slab) { |
| extent->e_bits = (extent->e_bits & ~EXTENT_BITS_SLAB_MASK) | |
| ((uint64_t)slab << EXTENT_BITS_SLAB_SHIFT); |
| } |
| |
| static inline void |
| extent_prof_tctx_set(extent_t *extent, prof_tctx_t *tctx) { |
| atomic_store_p(&extent->e_prof_tctx, tctx, ATOMIC_RELEASE); |
| } |
| |
| static inline void |
| extent_init(extent_t *extent, arena_t *arena, void *addr, size_t size, |
| bool slab, szind_t szind, size_t sn, extent_state_t state, bool zeroed, |
| bool committed, bool dumpable) { |
| assert(addr == PAGE_ADDR2BASE(addr) || !slab); |
| |
| extent_arena_set(extent, arena); |
| extent_addr_set(extent, addr); |
| extent_size_set(extent, size); |
| extent_slab_set(extent, slab); |
| extent_szind_set(extent, szind); |
| extent_sn_set(extent, sn); |
| extent_state_set(extent, state); |
| extent_zeroed_set(extent, zeroed); |
| extent_committed_set(extent, committed); |
| extent_dumpable_set(extent, dumpable); |
| ql_elm_new(extent, ql_link); |
| if (config_prof) { |
| extent_prof_tctx_set(extent, NULL); |
| } |
| } |
| |
| static inline void |
| extent_binit(extent_t *extent, void *addr, size_t bsize, size_t sn) { |
| extent_arena_set(extent, NULL); |
| extent_addr_set(extent, addr); |
| extent_bsize_set(extent, bsize); |
| extent_slab_set(extent, false); |
| extent_szind_set(extent, NSIZES); |
| extent_sn_set(extent, sn); |
| extent_state_set(extent, extent_state_active); |
| extent_zeroed_set(extent, true); |
| extent_committed_set(extent, true); |
| extent_dumpable_set(extent, true); |
| } |
| |
| static inline void |
| extent_list_init(extent_list_t *list) { |
| ql_new(list); |
| } |
| |
| static inline extent_t * |
| extent_list_first(const extent_list_t *list) { |
| return ql_first(list); |
| } |
| |
| static inline extent_t * |
| extent_list_last(const extent_list_t *list) { |
| return ql_last(list, ql_link); |
| } |
| |
| static inline void |
| extent_list_append(extent_list_t *list, extent_t *extent) { |
| ql_tail_insert(list, extent, ql_link); |
| } |
| |
| static inline void |
| extent_list_prepend(extent_list_t *list, extent_t *extent) { |
| ql_head_insert(list, extent, ql_link); |
| } |
| |
| static inline void |
| extent_list_replace(extent_list_t *list, extent_t *to_remove, |
| extent_t *to_insert) { |
| ql_after_insert(to_remove, to_insert, ql_link); |
| ql_remove(list, to_remove, ql_link); |
| } |
| |
| static inline void |
| extent_list_remove(extent_list_t *list, extent_t *extent) { |
| ql_remove(list, extent, ql_link); |
| } |
| |
| static inline int |
| extent_sn_comp(const extent_t *a, const extent_t *b) { |
| size_t a_sn = extent_sn_get(a); |
| size_t b_sn = extent_sn_get(b); |
| |
| return (a_sn > b_sn) - (a_sn < b_sn); |
| } |
| |
| static inline int |
| extent_esn_comp(const extent_t *a, const extent_t *b) { |
| size_t a_esn = extent_esn_get(a); |
| size_t b_esn = extent_esn_get(b); |
| |
| return (a_esn > b_esn) - (a_esn < b_esn); |
| } |
| |
| static inline int |
| extent_ad_comp(const extent_t *a, const extent_t *b) { |
| uintptr_t a_addr = (uintptr_t)extent_addr_get(a); |
| uintptr_t b_addr = (uintptr_t)extent_addr_get(b); |
| |
| return (a_addr > b_addr) - (a_addr < b_addr); |
| } |
| |
| static inline int |
| extent_ead_comp(const extent_t *a, const extent_t *b) { |
| uintptr_t a_eaddr = (uintptr_t)a; |
| uintptr_t b_eaddr = (uintptr_t)b; |
| |
| return (a_eaddr > b_eaddr) - (a_eaddr < b_eaddr); |
| } |
| |
| static inline int |
| extent_snad_comp(const extent_t *a, const extent_t *b) { |
| int ret; |
| |
| ret = extent_sn_comp(a, b); |
| if (ret != 0) { |
| return ret; |
| } |
| |
| ret = extent_ad_comp(a, b); |
| return ret; |
| } |
| |
| static inline int |
| extent_esnead_comp(const extent_t *a, const extent_t *b) { |
| int ret; |
| |
| ret = extent_esn_comp(a, b); |
| if (ret != 0) { |
| return ret; |
| } |
| |
| ret = extent_ead_comp(a, b); |
| return ret; |
| } |
| |
| #endif /* JEMALLOC_INTERNAL_EXTENT_INLINES_H */ |