26c792e61a
This lets us specify whether and how mutexes of the same rank are allowed to be acquired. Currently, we only allow two polices (only a single mutex at a given rank at a time, and mutexes acquired in ascending order), but we can plausibly allow more (e.g. the "release uncontended mutexes before blocking").
22 lines
765 B
C
22 lines
765 B
C
#ifndef JEMALLOC_INTERNAL_MUTEX_EXTERNS_H
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#define JEMALLOC_INTERNAL_MUTEX_EXTERNS_H
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#include "jemalloc/internal/tsd_types.h"
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#ifdef JEMALLOC_LAZY_LOCK
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extern bool isthreaded;
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#else
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# undef isthreaded /* Undo private_namespace.h definition. */
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# define isthreaded true
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#endif
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bool malloc_mutex_init(malloc_mutex_t *mutex, const char *name,
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witness_rank_t rank, malloc_mutex_lock_order_t lock_order);
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void malloc_mutex_prefork(tsdn_t *tsdn, malloc_mutex_t *mutex);
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void malloc_mutex_postfork_parent(tsdn_t *tsdn, malloc_mutex_t *mutex);
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void malloc_mutex_postfork_child(tsdn_t *tsdn, malloc_mutex_t *mutex);
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bool malloc_mutex_boot(void);
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void malloc_mutex_prof_data_reset(tsdn_t *tsdn, malloc_mutex_t *mutex);
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#endif /* JEMALLOC_INTERNAL_MUTEX_EXTERNS_H */
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