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📄 arena_externs.h(4.83 KB)
📄 arena_inlines_a.h(1.44 KB)
📄 arena_inlines_b.h(11.54 KB)
📄 arena_stats.h(7.92 KB)
📄 arena_structs_a.h(293 B)
📄 arena_structs_b.h(6.63 KB)
📄 arena_types.h(1.67 KB)
📄 assert.h(1.3 KB)
📄 atomic.h(2.66 KB)
📄 atomic_c11.h(3.46 KB)
📄 atomic_gcc_atomic.h(4.06 KB)
📄 atomic_gcc_sync.h(6.21 KB)
📄 background_thread_externs.h(1.29 KB)
📄 background_thread_inlines.h(2.09 KB)
📄 background_thread_structs.h(1.74 KB)
📄 base_externs.h(946 B)
📄 base_inlines.h(312 B)
📄 base_structs.h(1.52 KB)
📄 base_types.h(1.08 KB)
📄 bin.h(3.6 KB)
📄 bin_stats.h(1.35 KB)
📄 bin_types.h(474 B)
📄 bit_util.h(5.22 KB)
📄 bitmap.h(10.97 KB)
📄 cache_bin.h(3.69 KB)
📄 ckh.h(3.19 KB)
📄 ctl.h(3.62 KB)
📄 div.h(1.14 KB)
📄 emitter.h(13.06 KB)
📄 extent_dss.h(728 B)
📄 extent_externs.h(3.75 KB)
📄 extent_inlines.h(13.4 KB)
📄 extent_mmap.h(328 B)
📄 extent_structs.h(8.46 KB)
📄 extent_types.h(700 B)
📄 hash.h(7.88 KB)
📄 hook.h(5.41 KB)
📄 jemalloc_internal_decls.h(2.19 KB)
📄 jemalloc_internal_defs.h(10.93 KB)
📄 jemalloc_internal_defs_FreeBSD.h(256 B)
📄 jemalloc_internal_externs.h(1.75 KB)
📄 jemalloc_internal_includes.h(4.19 KB)
📄 jemalloc_internal_inlines_a.h(4.39 KB)
📄 jemalloc_internal_inlines_b.h(2.24 KB)
📄 jemalloc_internal_inlines_c.h(7.08 KB)
📄 jemalloc_internal_macros.h(3.99 KB)
📄 jemalloc_internal_types.h(3.42 KB)
📄 jemalloc_preamble.h(3.9 KB)
📄 large_externs.h(1.4 KB)
📄 log.h(3.67 KB)
📄 malloc_io.h(2.9 KB)
📄 mutex.h(9.34 KB)
📄 mutex_pool.h(2.81 KB)
📄 mutex_prof.h(3.55 KB)
📄 nstime.h(1.27 KB)
📄 pages.h(3.05 KB)
📄 ph.h(12.26 KB)
📄 private_namespace.h(22.72 KB)
📄 prng.h(4.69 KB)
📄 prof_externs.h(3.79 KB)
📄 prof_inlines_a.h(2.44 KB)
📄 prof_inlines_b.h(6.42 KB)
📄 prof_structs.h(5.02 KB)
📄 prof_types.h(1.74 KB)
📄 public_namespace.h(1.03 KB)
📄 ql.h(2.45 KB)
📄 qr.h(2.29 KB)
📄 quantum.h(1.75 KB)
📄 rb.h(37.41 KB)
📄 rtree.h(17.01 KB)
📄 rtree_tsd.h(1.82 KB)
📄 safety_check.h(797 B)
📄 sc.h(12.98 KB)
📄 seq.h(1.81 KB)
📄 smoothstep.h(15.26 KB)
📄 spin.h(613 B)
📄 stats.h(998 B)
📄 sz.h(7.96 KB)
📄 tcache_externs.h(2.09 KB)
📄 tcache_inlines.h(5.73 KB)
📄 tcache_structs.h(2.05 KB)
📄 tcache_types.h(2.01 KB)
📄 test_hooks.h(459 B)
📄 ticker.h(2.21 KB)
📄 tsd.h(12.49 KB)
📄 tsd_generic.h(3.76 KB)
📄 tsd_malloc_thread_cleanup.h(1.19 KB)
📄 tsd_tls.h(1.12 KB)
📄 tsd_types.h(258 B)
📄 util.h(1.43 KB)
📄 witness.h(9.32 KB)

Editing: mutex_pool.h

#ifndef JEMALLOC_INTERNAL_MUTEX_POOL_H
#define JEMALLOC_INTERNAL_MUTEX_POOL_H

#include "jemalloc/internal/hash.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/witness.h"

/* We do mod reductions by this value, so it should be kept a power of 2. */
#define MUTEX_POOL_SIZE 256

typedef struct mutex_pool_s mutex_pool_t;
struct mutex_pool_s {
	malloc_mutex_t mutexes[MUTEX_POOL_SIZE];
};

bool mutex_pool_init(mutex_pool_t *pool, const char *name, witness_rank_t rank);

/* Internal helper - not meant to be called outside this module. */
static inline malloc_mutex_t *
mutex_pool_mutex(mutex_pool_t *pool, uintptr_t key) {
	size_t hash_result[2];
	hash(&key, sizeof(key), 0xd50dcc1b, hash_result);
	return &pool->mutexes[hash_result[0] % MUTEX_POOL_SIZE];
}

static inline void
mutex_pool_assert_not_held(tsdn_t *tsdn, mutex_pool_t *pool) {
	for (int i = 0; i < MUTEX_POOL_SIZE; i++) {
		malloc_mutex_assert_not_owner(tsdn, &pool->mutexes[i]);
	}
}

/*
 * Note that a mutex pool doesn't work exactly the way an embdedded mutex would.
 * You're not allowed to acquire mutexes in the pool one at a time.  You have to
 * acquire all the mutexes you'll need in a single function call, and then
 * release them all in a single function call.
 */

static inline void
mutex_pool_lock(tsdn_t *tsdn, mutex_pool_t *pool, uintptr_t key) {
	mutex_pool_assert_not_held(tsdn, pool);

malloc_mutex_t *mutex = mutex_pool_mutex(pool, key);
	malloc_mutex_lock(tsdn, mutex);
}

static inline void
mutex_pool_unlock(tsdn_t *tsdn, mutex_pool_t *pool, uintptr_t key) {
	malloc_mutex_t *mutex = mutex_pool_mutex(pool, key);
	malloc_mutex_unlock(tsdn, mutex);

mutex_pool_assert_not_held(tsdn, pool);
}

static inline void
mutex_pool_lock2(tsdn_t *tsdn, mutex_pool_t *pool, uintptr_t key1,
    uintptr_t key2) {
	mutex_pool_assert_not_held(tsdn, pool);

malloc_mutex_t *mutex1 = mutex_pool_mutex(pool, key1);
	malloc_mutex_t *mutex2 = mutex_pool_mutex(pool, key2);
	if ((uintptr_t)mutex1 < (uintptr_t)mutex2) {
		malloc_mutex_lock(tsdn, mutex1);
		malloc_mutex_lock(tsdn, mutex2);
	} else if ((uintptr_t)mutex1 == (uintptr_t)mutex2) {
		malloc_mutex_lock(tsdn, mutex1);
	} else {
		malloc_mutex_lock(tsdn, mutex2);
		malloc_mutex_lock(tsdn, mutex1);
	}
}

static inline void
mutex_pool_unlock2(tsdn_t *tsdn, mutex_pool_t *pool, uintptr_t key1,
    uintptr_t key2) {
	malloc_mutex_t *mutex1 = mutex_pool_mutex(pool, key1);
	malloc_mutex_t *mutex2 = mutex_pool_mutex(pool, key2);
	if (mutex1 == mutex2) {
		malloc_mutex_unlock(tsdn, mutex1);
	} else {
		malloc_mutex_unlock(tsdn, mutex1);
		malloc_mutex_unlock(tsdn, mutex2);
	}

mutex_pool_assert_not_held(tsdn, pool);
}

static inline void
mutex_pool_assert_owner(tsdn_t *tsdn, mutex_pool_t *pool, uintptr_t key) {
	malloc_mutex_assert_owner(tsdn, mutex_pool_mutex(pool, key));
}

#endif /* JEMALLOC_INTERNAL_MUTEX_POOL_H */

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Editing: mutex_pool.h

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