110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef APR_SIGNAL_H
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#define APR_SIGNAL_H
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/**
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* @file apr_signal.h
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* @brief APR Signal Handling
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*/
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#include "apr.h"
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#include "apr_pools.h"
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#if APR_HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @defgroup apr_signal Signal Handling
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* @ingroup APR
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* @{
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*/
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#if APR_HAVE_SIGACTION || defined(DOXYGEN)
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#if defined(DARWIN) && !defined(__cplusplus) && !defined(_ANSI_SOURCE)
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/* work around Darwin header file bugs
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* http://www.opensource.apple.com/bugs/X/BSD%20Kernel/2657228.html
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*/
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#undef SIG_DFL
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#undef SIG_IGN
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#undef SIG_ERR
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#define SIG_DFL (void (*)(int))0
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#define SIG_IGN (void (*)(int))1
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#define SIG_ERR (void (*)(int))-1
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#endif
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/** Function prototype for signal handlers */
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typedef void apr_sigfunc_t(int);
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/**
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* Set the signal handler function for a given signal
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* @param signo The signal (eg... SIGWINCH)
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* @param func the function to get called
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*/
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APR_DECLARE(apr_sigfunc_t *) apr_signal(int signo, apr_sigfunc_t * func);
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#if defined(SIG_IGN) && !defined(SIG_ERR)
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#define SIG_ERR ((apr_sigfunc_t *) -1)
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#endif
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#else /* !APR_HAVE_SIGACTION */
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#define apr_signal(a, b) signal(a, b)
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#endif
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/**
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* Get the description for a specific signal number
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* @param signum The signal number
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* @return The description of the signal
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*/
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APR_DECLARE(const char *) apr_signal_description_get(int signum);
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/**
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* APR-private function for initializing the signal package
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* @internal
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* @param pglobal The internal, global pool
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*/
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void apr_signal_init(apr_pool_t *pglobal);
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/**
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* Block the delivery of a particular signal
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* @param signum The signal number
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* @return status
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*/
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APR_DECLARE(apr_status_t) apr_signal_block(int signum);
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/**
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* Enable the delivery of a particular signal
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* @param signum The signal number
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* @return status
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*/
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APR_DECLARE(apr_status_t) apr_signal_unblock(int signum);
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/** @} */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* APR_SIGNAL_H */
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