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Annotation of embedaddon/libevent/evsignal.h, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright 2000-2002 Niels Provos <provos@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_ */