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Add forking handling for counter module

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This commit is contained in:
Yinan Zhang 2020-04-15 14:52:01 -07:00
parent 2097e1945b
commit 4d970f8bfc
3 changed files with 26 additions and 0 deletions
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3
include/jemalloc/internal/counter.h
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@ -52,5 +52,8 @@ counter_accum(tsdn_t *tsdn, counter_accum_t *counter, uint64_t accumbytes) {
}
bool counter_accum_init(counter_accum_t *counter, uint64_t interval);
void counter_prefork(tsdn_t *tsdn, counter_accum_t *counter);
void counter_postfork_parent(tsdn_t *tsdn, counter_accum_t *counter);
void counter_postfork_child(tsdn_t *tsdn, counter_accum_t *counter);
#endif /* JEMALLOC_INTERNAL_COUNTER_H */

8
include/jemalloc/internal/lockedint.h
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@ -31,12 +31,20 @@ struct locked_zu_s {
# define LOCKEDINT_MTX(mtx) (&(mtx))
# define LOCKEDINT_MTX_LOCK(tsdn, mu) malloc_mutex_lock(tsdn, &(mu))
# define LOCKEDINT_MTX_UNLOCK(tsdn, mu) malloc_mutex_unlock(tsdn, &(mu))
# define LOCKEDINT_MTX_PREFORK(tsdn, mu) malloc_mutex_prefork(tsdn, &(mu))
# define LOCKEDINT_MTX_POSTFORK_PARENT(tsdn, mu) \
malloc_mutex_postfork_parent(tsdn, &(mu))
# define LOCKEDINT_MTX_POSTFORK_CHILD(tsdn, mu) \
malloc_mutex_postfork_child(tsdn, &(mu))
#else
# define LOCKEDINT_MTX_DECLARE(name)
# define LOCKEDINT_MTX(ptr) NULL
# define LOCKEDINT_MTX_INIT(ptr, name, rank, rank_mode) false
# define LOCKEDINT_MTX_LOCK(tsdn, mu) do {} while (0)
# define LOCKEDINT_MTX_UNLOCK(tsdn, mu) do {} while (0)
# define LOCKEDINT_MTX_PREFORK(tsdn, mu)
# define LOCKEDINT_MTX_POSTFORK_PARENT(tsdn, mu)
# define LOCKEDINT_MTX_POSTFORK_CHILD(tsdn, mu)
#endif
static inline uint64_t

15
src/counter.c
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@ -20,3 +20,18 @@ counter_accum_init(counter_accum_t *counter, uint64_t interval) {
return false;
}
void
counter_prefork(tsdn_t *tsdn, counter_accum_t *counter) {
LOCKEDINT_MTX_PREFORK(tsdn, counter->mtx);
}
void
counter_postfork_parent(tsdn_t *tsdn, counter_accum_t *counter) {
LOCKEDINT_MTX_POSTFORK_PARENT(tsdn, counter->mtx);
}
void
counter_postfork_child(tsdn_t *tsdn, counter_accum_t *counter) {
LOCKEDINT_MTX_POSTFORK_CHILD(tsdn, counter->mtx);
}