/* WARNING: This file was generated by dkct. Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dk3signl.ctr */ /* Copyright (C) 2011-2017, Dirk Krause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``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 COPYRIGHT OWNER OR CONTRIBUTORS 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. */ /** @file dk3signl.c The dk3signl module. */ #line 47 "dk3signl.ctr" #include "dk3all.h" #line 53 "dk3signl.ctr" #if DK3_HAVE_SIGACTION /** Set new signal disposition. @param signo Signal number of signal to modify. @param fct New signal disposition. @return Previous signal disposition. */ static dk3_signal_disp_t dk3signal_sigaction(int signo, dk3_signal_disp_t fct) { dk3_signal_disp_t back = (dk3_signal_disp_t)SIG_ERR; struct sigaction act, oact; act.sa_handler = fct; sigemptyset(&act.sa_mask); if(signo == SIGALRM) { #ifdef SA_INTERRUPT act.sa_flags |= SA_INTERRUPT; #else #ifdef SA_RESTART act.sa_flags |= SA_RESTART; #endif #endif } if(sigaction(signo, &act, &oact) < 0) { back = (dk3_signal_disp_t)SIG_ERR; } else { back = (dk3_signal_disp_t)oact.sa_handler; } return back; } #endif dk3_signal_disp_t dk3signal_set(int signo, dk3_signal_disp_t fct) { dk3_signal_disp_t back = NULL; #if DK3_HAVE_SIGACTION /* + sigaction */ back = dk3signal_sigaction(signo, fct); /* - sigaction */ #else #if DK3_HAVE_SIGSET /* + sigset */ back = (dk3_signal_disp_t)sigset(signo,fct); /* - sigset */ #else #if DK3_HAVE_SIGNAL /* + signal */ back = (dk3_signal_disp_t)signal(signo,fct); /* - signal */ #else #error "No signal handling functions available" #endif #endif #endif return back; } void dk3signal_refresh(int signo, dk3_signal_disp_t fct) { #if DK3_HAVE_SIGACTION #else #if DK3_HAVE_SIGSET #else #if DK3_HAVE_SIGNAL (void)signal(signo, fct); #else #endif #endif #endif } int dk3signal_available(void) { int back = DK3_SIGNAL_HANDLING_TYPE_NONE; #if DK3_HAVE_SIGACTION back = DK3_SIGNAL_HANDLING_TYPE_SIGACTION; #else #if DK3_HAVE_SIGSET back = DK3_SIGNAL_HANDLING_TYPE_SIGSET; #else #if DK3_HAVE_SIGNAL back = DK3_SIGNAL_HANDLING_TYPE_SIGNAL; #endif #endif #endif return back; } /* vim: set ai sw=2 : */