/* $NetBSD: evsignal-internal.h,v 1.1.1.1 2013/04/11 16:43:26 christos Exp $ */ /* * Copyright 2000-2007 Niels Provos * Copyright 2007-2012 Niels Provos and Nick Mathewson * * 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 name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ #ifndef _EVSIGNAL_H_ #define _EVSIGNAL_H_ #ifndef evutil_socket_t #include "event2/util.h" #endif #include typedef void (*ev_sighandler_t)(int); /* Data structure for the default signal-handling implementation in signal.c */ struct evsig_info { /* Event watching ev_signal_pair[1] */ struct event ev_signal; /* Socketpair used to send notifications from the signal handler */ evutil_socket_t ev_signal_pair[2]; /* True iff we've added the ev_signal event yet. */ int ev_signal_added; /* Count of the number of signals we're currently watching. */ int ev_n_signals_added; /* Array of previous signal handler objects before Libevent started * messing with them. Used to restore old signal handlers. */ #ifdef _EVENT_HAVE_SIGACTION struct sigaction **sh_old; #else ev_sighandler_t **sh_old; #endif /* Size of sh_old. */ int sh_old_max; }; int evsig_init(struct event_base *); void evsig_dealloc(struct event_base *); void evsig_set_base(struct event_base *base); #endif /* _EVSIGNAL_H_ */