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/* PEAK Library |
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* |
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* Copyright (c) 2003, 2004 |
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* Stephane Thiell <mbuna@bugged.org>. 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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* |
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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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* |
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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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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#define RCSID "$Id: signal.c,v 1.2 2004/01/08 19:03:54 mbuna Exp $" |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <peak/signal.h> |
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|
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#include <assert.h> |
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#include <errno.h> |
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#include <sys/types.h> |
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#ifdef HAVE_SYS_UIO_H |
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#include <sys/uio.h> |
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#endif |
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#include <stdarg.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#ifdef HAVE_SIGNAL_H |
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#include <signal.h> |
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#endif |
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#include <unistd.h> |
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|
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#include "engine_client.h" |
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#include "internal.h" |
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#include "task_private.h" |
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|
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static void __peak_signal_init(peak_signal i, va_list vp, void *ctcx); |
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static void __peak_signal_finalize(peak_signal i); |
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static void __peak_signal_event_process(peak_signal i, int ioevent, int data); |
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|
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struct __peak_signal |
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{ |
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PEAK_STRUCT_ENGINE_CLIENT_HEADER; |
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peak_signal_event_callback _cb; |
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void *_context; |
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}; |
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|
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PEAK_CLASS_DECLARE(signal, engine_client); |
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|
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peak_signal |
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peak_signal_create(int signum, peak_signal_event_callback cb, |
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void *context) |
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{ |
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return PEAK_CLASS_CONSTRUCT3(signal, signum, cb, context); |
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} |
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|
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static void |
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__peak_signal_init(peak_signal i, va_list vp, void *ctcx) |
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{ |
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int signum = va_arg(vp, int); |
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|
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_peak_engine_client_configure((peak_engine_client)i, signum, CS_SIGNAL, |
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(peak_engine_client_event_process_func)&__peak_signal_event_process); |
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|
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i->_cb = va_arg(vp, peak_signal_event_callback); |
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i->_context = va_arg(vp, void*); |
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} |
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|
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static void |
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__peak_signal_finalize(peak_signal i) |
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{ |
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} |
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|
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/* Scheduling */ |
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|
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void |
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peak_signal_schedule(peak_signal i, peak_task task) |
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{ |
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_peak_task_schedule_engine_client(task, (peak_engine_client)i); |
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} |
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|
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void |
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peak_signal_unschedule(peak_signal i, peak_task task) |
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{ |
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_peak_task_unschedule_engine_client(task, (peak_engine_client)i); |
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} |
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|
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/* Convenience */ |
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int |
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peak_signal_ignore(int signum) |
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{ |
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struct sigaction act; |
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act.sa_handler = SIG_IGN; |
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act.sa_flags = 0; |
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sigemptyset(&act.sa_mask); |
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return sigaction(signum, &act, 0); |
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} |
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|
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/* Processing */ |
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|
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static void |
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__peak_signal_event_process(peak_signal i, int ioevent, int data) |
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{ |
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assert(ioevent == IOEVENT_SIGNAL); |
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|
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(*i->_cb)(i, data, i->_context); |
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} |
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