1 /* 2 * Copyright 2000-2002 Niels Provos <provos (at) citi.umich.edu> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 #ifndef _EVSIGNAL_H_ 28 #define _EVSIGNAL_H_ 29 30 typedef void (*ev_sighandler_t)(int); 31 32 struct evsignal_info { 33 struct event ev_signal; 34 int ev_signal_pair[2]; 35 int ev_signal_added; 36 volatile sig_atomic_t evsignal_caught; 37 struct event_list evsigevents[NSIG]; 38 sig_atomic_t evsigcaught[NSIG]; 39 #ifdef HAVE_SIGACTION 40 struct sigaction **sh_old; 41 #else 42 ev_sighandler_t **sh_old; 43 #endif 44 int sh_old_max; 45 }; 46 int evsignal_init(struct event_base *); 47 void evsignal_process(struct event_base *); 48 int evsignal_add(struct event *); 49 int evsignal_del(struct event *); 50 void evsignal_dealloc(struct event_base *); 51 52 #endif /* _EVSIGNAL_H_ */ 53
