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Diffstat (limited to 'libevent-2.0.20-stable/evsignal-internal.h')
| -rw-r--r-- | libevent-2.0.20-stable/evsignal-internal.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libevent-2.0.20-stable/evsignal-internal.h b/libevent-2.0.20-stable/evsignal-internal.h new file mode 100644 index 0000000..426f4a4 --- /dev/null +++ b/libevent-2.0.20-stable/evsignal-internal.h @@ -0,0 +1,64 @@ +/* + * Copyright 2000-2007 Niels Provos <provos@citi.umich.edu> + * 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 <signal.h> + +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_ */ |