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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. 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.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#ifndef APR_SIGNAL_H
#define APR_SIGNAL_H
/**
* @file apr_signal.h
* @brief APR Signal Handling
*/
#include "apr.h"
#include "apr_pools.h"
#if APR_HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup apr_signal Handling
* @ingroup APR
* @{
*/
#if APR_HAVE_SIGACTION || defined(DOXYGEN)
#if defined(DARWIN) && !defined(__cplusplus) && !defined(_ANSI_SOURCE)
/* work around Darwin header file bugs
* http://www.opensource.apple.com/bugs/X/BSD%20Kernel/2657228.html
*/
#undef SIG_DFL
#undef SIG_IGN
#undef SIG_ERR
#define SIG_DFL (void (*)(int))0
#define SIG_IGN (void (*)(int))1
#define SIG_ERR (void (*)(int))-1
#endif
/** Function prototype for signal handlers */
typedef void apr_sigfunc_t(int);
/**
* Set the signal handler function for a given signal
* @param signo The signal (eg... SIGWINCH)
* @param func the function to get called
*/
APR_DECLARE(apr_sigfunc_t *) apr_signal(int signo, apr_sigfunc_t * func);
#if defined(SIG_IGN) && !defined(SIG_ERR)
#define SIG_ERR ((apr_sigfunc_t *) -1)
#endif
#else /* !APR_HAVE_SIGACTION */
#define apr_signal(a, b) signal(a, b)
#endif
/**
* Get the description for a specific signal number
* @param signum The signal number
* @return The description of the signal
*/
APR_DECLARE(const char *) apr_signal_description_get(int signum);
/** @deprecated @see apr_signal_description_get */
APR_DECLARE(const char *) apr_signal_get_description(int signum);
/**
* APR-private function for initializing the signal package
* @internal
* @param pglobal The internal, global pool
*/
void apr_signal_init(apr_pool_t *pglobal);
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* APR_SIGNAL_H */
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