mirror of
https://github.com/matrix-construct/construct
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* To benefit from the precompiled-header (PCH) it MUST provide "the first C token." Advantages: Never worry about the include stack again. Remember, this means one less thing for random module developers, community people learning C++, and new developers to deal with. It should reduce the learning curve and barrier for participation. Disadvantages: Makes overall compilation a bit slower, especially without any additional work to improve it again. There are several opportunities, places where the PCH is probably being ignored, etc that can be addressed.
193 lines
3.7 KiB
C++
193 lines
3.7 KiB
C++
/************************************************************************
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* IRC - Internet Relay Chat, src/ircd_signal.c
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* Copyright (C) 1990 Jarkko Oikarinen and
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* University of Oulu, Computing Center
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 1, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _WIN32
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#include <sys/types.h>
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#include <sys/wait.h>
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#endif
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namespace ircd {
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#ifndef _WIN32
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/*
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* dummy_handler - don't know if this is really needed but if alarm is still
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* being used we probably will
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*/
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static void
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dummy_handler(int sig)
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{
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/* Empty */
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}
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static void
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sigchld_handler(int sig)
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{
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int status, olderrno;
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olderrno = errno;
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while (waitpid(-1, &status, WNOHANG) > 0)
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;
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errno = olderrno;
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}
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/*
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* sigterm_handler - exit the server
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*/
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static void
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sigterm_handler(int sig) __attribute__((noreturn));
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static void
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sigterm_handler(int sig)
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{
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ircd_shutdown("Received SIGTERM");
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}
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/*
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* sighup_handler - reread the server configuration
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*/
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static void
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sighup_handler(int sig)
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{
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dorehash = true;
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}
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/*
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* sigusr1_handler - reread the motd file
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*/
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static void
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sigusr1_handler(int sig)
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{
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doremotd = true;
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}
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static void
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sigusr2_handler(int sig)
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{
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dorehashbans = true;
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}
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/*
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* sigint_handler - restart the server
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*/
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static void
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sigint_handler(int sig)
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{
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static bool restarting = false;
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if(server_state_foreground)
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{
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ilog(L_MAIN, "Server exiting on SIGINT");
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exit(0);
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}
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else
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{
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ilog(L_MAIN, "Server Restarting on SIGINT");
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if(!restarting)
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{
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restarting = true;
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server_reboot();
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}
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}
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}
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/*
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* setup_signals - initialize signal handlers for server
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*/
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void
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setup_signals()
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{
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sigset_t sigs;
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struct sigaction act;
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sigemptyset(&sigs);
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act.sa_flags = 0;
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act.sa_handler = SIG_IGN;
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sigemptyset(&act.sa_mask);
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sigaddset(&act.sa_mask, SIGPIPE);
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sigaddset(&act.sa_mask, SIGALRM);
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#ifdef SIGTRAP
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sigaddset(&act.sa_mask, SIGTRAP);
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#endif
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# ifdef SIGWINCH
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sigaddset(&act.sa_mask, SIGWINCH);
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sigaction(SIGWINCH, &act, 0);
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# endif
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sigaction(SIGPIPE, &act, 0);
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#ifdef SIGTRAP
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sigaction(SIGTRAP, &act, 0);
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#endif
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act.sa_handler = dummy_handler;
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sigaction(SIGALRM, &act, 0);
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sigaddset(&sigs, SIGALRM);
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act.sa_handler = sighup_handler;
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sigemptyset(&act.sa_mask);
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sigaddset(&act.sa_mask, SIGHUP);
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sigaction(SIGHUP, &act, 0);
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sigaddset(&sigs, SIGHUP);
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act.sa_handler = sigint_handler;
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sigaddset(&act.sa_mask, SIGINT);
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sigaction(SIGINT, &act, 0);
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sigaddset(&sigs, SIGINT);
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act.sa_handler = sigterm_handler;
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sigaddset(&act.sa_mask, SIGTERM);
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sigaction(SIGTERM, &act, 0);
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sigaddset(&sigs, SIGTERM);
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act.sa_handler = sigusr1_handler;
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sigaddset(&act.sa_mask, SIGUSR1);
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sigaction(SIGUSR1, &act, 0);
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sigaddset(&sigs, SIGUSR1);
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act.sa_handler = sigusr2_handler;
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sigaddset(&act.sa_mask, SIGUSR2);
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sigaction(SIGUSR2, &act, 0);
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sigaddset(&sigs, SIGUSR2);
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act.sa_handler = sigchld_handler;
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sigaddset(&act.sa_mask, SIGCHLD);
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sigaction(SIGCHLD, &act, 0);
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sigaddset(&sigs, SIGCHLD);
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sigprocmask(SIG_UNBLOCK, &sigs, NULL);
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}
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#else
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void
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setup_signals()
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{
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/* this is a stub for mingw32 */
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}
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void
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setup_reboot_signals()
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{
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/* this is a stub for mingw32 */
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}
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#endif // _WIN32
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} // namespace ircd
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