1*2b15cb3dSCy Schubert /* 2*2b15cb3dSCy Schubert * Copyright 2000-2007 Niels Provos <provos@citi.umich.edu> 3*2b15cb3dSCy Schubert * Copyright 2007-2012 Niels Provos and Nick Mathewson 4*2b15cb3dSCy Schubert * 5*2b15cb3dSCy Schubert * Redistribution and use in source and binary forms, with or without 6*2b15cb3dSCy Schubert * modification, are permitted provided that the following conditions 7*2b15cb3dSCy Schubert * are met: 8*2b15cb3dSCy Schubert * 1. Redistributions of source code must retain the above copyright 9*2b15cb3dSCy Schubert * notice, this list of conditions and the following disclaimer. 10*2b15cb3dSCy Schubert * 2. Redistributions in binary form must reproduce the above copyright 11*2b15cb3dSCy Schubert * notice, this list of conditions and the following disclaimer in the 12*2b15cb3dSCy Schubert * documentation and/or other materials provided with the distribution. 13*2b15cb3dSCy Schubert * 3. The name of the author may not be used to endorse or promote products 14*2b15cb3dSCy Schubert * derived from this software without specific prior written permission. 15*2b15cb3dSCy Schubert * 16*2b15cb3dSCy Schubert * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17*2b15cb3dSCy Schubert * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18*2b15cb3dSCy Schubert * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19*2b15cb3dSCy Schubert * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20*2b15cb3dSCy Schubert * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21*2b15cb3dSCy Schubert * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22*2b15cb3dSCy Schubert * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23*2b15cb3dSCy Schubert * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24*2b15cb3dSCy Schubert * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25*2b15cb3dSCy Schubert * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*2b15cb3dSCy Schubert */ 27*2b15cb3dSCy Schubert #ifndef EVSIGNAL_INTERNAL_H_INCLUDED_ 28*2b15cb3dSCy Schubert #define EVSIGNAL_INTERNAL_H_INCLUDED_ 29*2b15cb3dSCy Schubert 30*2b15cb3dSCy Schubert #ifndef evutil_socket_t 31*2b15cb3dSCy Schubert #include "event2/util.h" 32*2b15cb3dSCy Schubert #endif 33*2b15cb3dSCy Schubert #include <signal.h> 34*2b15cb3dSCy Schubert 35*2b15cb3dSCy Schubert typedef void (*ev_sighandler_t)(int); 36*2b15cb3dSCy Schubert 37*2b15cb3dSCy Schubert /* Data structure for the default signal-handling implementation in signal.c 38*2b15cb3dSCy Schubert */ 39*2b15cb3dSCy Schubert struct evsig_info { 40*2b15cb3dSCy Schubert /* Event watching ev_signal_pair[1] */ 41*2b15cb3dSCy Schubert struct event ev_signal; 42*2b15cb3dSCy Schubert /* Socketpair used to send notifications from the signal handler */ 43*2b15cb3dSCy Schubert evutil_socket_t ev_signal_pair[2]; 44*2b15cb3dSCy Schubert /* True iff we've added the ev_signal event yet. */ 45*2b15cb3dSCy Schubert int ev_signal_added; 46*2b15cb3dSCy Schubert /* Count of the number of signals we're currently watching. */ 47*2b15cb3dSCy Schubert int ev_n_signals_added; 48*2b15cb3dSCy Schubert 49*2b15cb3dSCy Schubert /* Array of previous signal handler objects before Libevent started 50*2b15cb3dSCy Schubert * messing with them. Used to restore old signal handlers. */ 51*2b15cb3dSCy Schubert #ifdef EVENT__HAVE_SIGACTION 52*2b15cb3dSCy Schubert struct sigaction **sh_old; 53*2b15cb3dSCy Schubert #else 54*2b15cb3dSCy Schubert ev_sighandler_t **sh_old; 55*2b15cb3dSCy Schubert #endif 56*2b15cb3dSCy Schubert /* Size of sh_old. */ 57*2b15cb3dSCy Schubert int sh_old_max; 58*2b15cb3dSCy Schubert }; 59*2b15cb3dSCy Schubert int evsig_init_(struct event_base *); 60*2b15cb3dSCy Schubert void evsig_dealloc_(struct event_base *); 61*2b15cb3dSCy Schubert 62*2b15cb3dSCy Schubert void evsig_set_base_(struct event_base *base); 63*2b15cb3dSCy Schubert void evsig_free_globals_(void); 64*2b15cb3dSCy Schubert 65*2b15cb3dSCy Schubert #endif /* EVSIGNAL_INTERNAL_H_INCLUDED_ */ 66