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0492bbf590
While using mutrace, the phtread-rwlock based isc_rwlock implementation would be all tracked in the rwlock.c unit losing all useful information as all rwlocks would be traced in a single place. Rewrite the pthread_rwlock based implementation to be header-only macros, so we can use mutrace to properly track the rwlock contention without heavily patching mutrace to understand the libisc synchronization primitives.
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#pragma once
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/*! \file */
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#include <errno.h>
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#include <stdlib.h>
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#include <isc/error.h>
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#include <isc/lang.h>
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#include <isc/mutex.h>
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#include <isc/result.h>
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#include <isc/string.h>
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#include <isc/types.h>
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#include <isc/util.h>
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ISC_LANG_BEGINDECLS
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/*
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* We use macros instead of static inline functions so that the exact code
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* location can be reported when PTHREADS_RUNTIME_CHECK() fails or when mutrace
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* reports lock contention.
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*/
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#ifdef ISC_TRACK_PTHREADS_OBJECTS
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typedef pthread_cond_t *isc_condition_t;
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#define isc_condition_init(cp) \
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{ \
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*cp = malloc(sizeof(**cp)); \
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isc__condition_init(*cp); \
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}
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#define isc_condition_wait(cp, mp) isc__condition_wait(*cp, *mp)
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#define isc_condition_waituntil(cp, mp, t) isc__condition_waituntil(*cp, *mp, t)
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#define isc_condition_signal(cp) isc__condition_signal(*cp)
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#define isc_condition_broadcast(cp) isc__condition_broadcast(*cp)
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#define isc_condition_destroy(cp) \
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{ \
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isc__condition_destroy(*cp); \
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free(*cp); \
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}
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#else /* ISC_TRACK_PTHREADS_OBJECTS */
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typedef pthread_cond_t isc_condition_t;
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#define isc_condition_init(cond) isc__condition_init(cond)
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#define isc_condition_wait(cp, mp) isc__condition_wait(cp, mp)
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#define isc_condition_waituntil(cp, mp, t) isc__condition_waituntil(cp, mp, t)
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#define isc_condition_signal(cp) isc__condition_signal(cp)
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#define isc_condition_broadcast(cp) isc__condition_broadcast(cp)
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#define isc_condition_destroy(cp) isc__condition_destroy(cp)
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#endif /* ISC_TRACK_PTHREADS_OBJECTS */
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#define isc__condition_init(cond) \
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{ \
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int _ret = pthread_cond_init(cond, NULL); \
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PTHREADS_RUNTIME_CHECK(pthread_cond_init, _ret); \
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}
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#define isc__condition_wait(cp, mp) \
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{ \
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int _ret = pthread_cond_wait(cp, mp); \
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PTHREADS_RUNTIME_CHECK(pthread_cond_wait, _ret); \
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}
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#define isc__condition_signal(cp) \
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{ \
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int _ret = pthread_cond_signal(cp); \
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PTHREADS_RUNTIME_CHECK(pthread_cond_signal, _ret); \
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}
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#define isc__condition_broadcast(cp) \
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{ \
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int _ret = pthread_cond_broadcast(cp); \
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PTHREADS_RUNTIME_CHECK(pthread_cond_broadcast, _ret); \
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}
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#define isc__condition_destroy(cp) \
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{ \
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int _ret = pthread_cond_destroy(cp); \
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PTHREADS_RUNTIME_CHECK(pthread_cond_destroy, _ret); \
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}
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isc_result_t
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isc__condition_waituntil(pthread_cond_t *, pthread_mutex_t *, isc_time_t *);
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ISC_LANG_ENDDECLS
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