mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-12 11:29:30 +00:00
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/*-
|
|
* Copyright (c) 2011 David Chisnall
|
|
* Copyright (c) 2015 embedded brains GmbH
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/lock.h>
|
|
|
|
/**
|
|
* Linked list of quick exit handlers. This is simpler than the atexit()
|
|
* version, because it is not required to support C++ destructors or
|
|
* DSO-specific cleanups.
|
|
*/
|
|
struct quick_exit_handler {
|
|
struct quick_exit_handler *next;
|
|
void (*cleanup)(void);
|
|
};
|
|
|
|
/**
|
|
* Lock protecting the handlers list.
|
|
*/
|
|
#ifndef __SINGLE_THREAD__
|
|
__LOCK_INIT(static, __at_quick_exit_mutex);
|
|
#endif
|
|
/**
|
|
* Stack of cleanup handlers. These will be invoked in reverse order when
|
|
*/
|
|
static struct quick_exit_handler *handlers;
|
|
|
|
int
|
|
at_quick_exit(void (*func)(void))
|
|
{
|
|
struct quick_exit_handler *h;
|
|
|
|
h = malloc(sizeof(*h));
|
|
|
|
if (NULL == h)
|
|
return (1);
|
|
h->cleanup = func;
|
|
#ifndef __SINGLE_THREAD__
|
|
__lock_acquire(__at_quick_exit_mutex);
|
|
#endif
|
|
h->next = handlers;
|
|
handlers = h;
|
|
#ifndef __SINGLE_THREAD__
|
|
__lock_release(__at_quick_exit_mutex);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
quick_exit(int status)
|
|
{
|
|
struct quick_exit_handler *h;
|
|
|
|
/*
|
|
* XXX: The C++ spec requires us to call std::terminate if there is an
|
|
* exception here.
|
|
*/
|
|
for (h = handlers; NULL != h; h = h->next)
|
|
h->cleanup();
|
|
_exit(status);
|
|
}
|