|  | /* | 
|  | * Copyright 2000-2002 Niels Provos <provos@citi.umich.edu> | 
|  | * 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 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_ | 
|  |  | 
|  | typedef void (*ev_sighandler_t)(int); | 
|  |  | 
|  | struct evsignal_info { | 
|  | struct event ev_signal; | 
|  | int ev_signal_pair[2]; | 
|  | int ev_signal_added; | 
|  | volatile sig_atomic_t evsignal_caught; | 
|  | struct event_list evsigevents[NSIG]; | 
|  | sig_atomic_t evsigcaught[NSIG]; | 
|  | #ifdef HAVE_SIGACTION | 
|  | struct sigaction **sh_old; | 
|  | #else | 
|  | ev_sighandler_t **sh_old; | 
|  | #endif | 
|  | int sh_old_max; | 
|  | }; | 
|  | int evsignal_init(struct event_base *); | 
|  | void evsignal_process(struct event_base *); | 
|  | int evsignal_add(struct event *); | 
|  | int evsignal_del(struct event *); | 
|  | void evsignal_dealloc(struct event_base *); | 
|  |  | 
|  | #endif /* _EVSIGNAL_H_ */ |