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108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "namespace.h"
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#include <signal.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include "un-namespace.h"
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#include "thr_private.h"
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#undef pthread_cleanup_push
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#undef pthread_cleanup_pop
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/* old binary compatible interfaces */
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__weak_reference(_thr_cleanup_pop, pthread_cleanup_pop);
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__weak_reference(_thr_cleanup_pop, _pthread_cleanup_pop);
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__weak_reference(_thr_cleanup_push, pthread_cleanup_push);
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__weak_reference(_thr_cleanup_push, _pthread_cleanup_push);
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/* help static linking when libc symbols have preference */
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__weak_reference(__thr_cleanup_push_imp, __pthread_cleanup_push_imp);
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__weak_reference(__thr_cleanup_pop_imp, __pthread_cleanup_pop_imp);
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void
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__thr_cleanup_push_imp(void (*routine)(void *), void *arg,
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struct _pthread_cleanup_info *info)
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{
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struct pthread *curthread = _get_curthread();
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struct pthread_cleanup *newbuf;
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newbuf = (void *)info;
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newbuf->routine = routine;
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newbuf->routine_arg = arg;
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newbuf->onheap = 0;
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newbuf->prev = curthread->cleanup;
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curthread->cleanup = newbuf;
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}
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void
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__thr_cleanup_pop_imp(int execute)
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{
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struct pthread *curthread = _get_curthread();
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struct pthread_cleanup *old;
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if ((old = curthread->cleanup) != NULL) {
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curthread->cleanup = old->prev;
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if (execute)
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old->routine(old->routine_arg);
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if (old->onheap)
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free(old);
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}
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}
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void
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_thr_cleanup_push(void (*routine)(void *), void *arg)
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{
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struct pthread *curthread = _get_curthread();
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struct pthread_cleanup *newbuf;
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#ifdef _PTHREAD_FORCED_UNWIND
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curthread->unwind_disabled = 1;
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#endif
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if ((newbuf = (struct pthread_cleanup *)
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malloc(sizeof(struct pthread_cleanup))) != NULL) {
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newbuf->routine = routine;
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newbuf->routine_arg = arg;
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newbuf->onheap = 1;
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newbuf->prev = curthread->cleanup;
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curthread->cleanup = newbuf;
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}
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}
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void
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_thr_cleanup_pop(int execute)
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{
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__pthread_cleanup_pop_imp(execute);
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}
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