119 lines
3.4 KiB
C++
119 lines
3.4 KiB
C++
// -*- mode: C++; indent-tabs-mode: nil; -*-
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// main.cc for Epistory - a key handler for NETWM/EWMH window managers.
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// Copyright (c) 2002 - 2002 Ben Jansens <ben at orodu.net>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#ifdef HAVE_CONFIG_H
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# include "../../config.h"
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#endif // HAVE_CONFIG_H
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extern "C" {
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#include <X11/Xlib.h>
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#ifdef HAVE_UNISTD_H
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# include <sys/types.h>
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# include <unistd.h>
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#endif // HAVE_UNISTD_H
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#ifdef HAVE_SIGNAL_H
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# include <signal.h>
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#endif // HAVE_SIGNAL_H
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#ifdef HAVE_SYS_SIGNAL_H
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# include <sys/signal.h>
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#endif // HAVE_SYS_SIGNAL_H
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#ifdef HAVE_LIBGEN_H
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# include <libgen.h>
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#endif // HAVE_LIBGEN_H
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}
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#include <iostream>
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using std::cout;
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using std::endl;
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bool _shutdown = false;
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char **_argv;
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char *_display_name = 0;
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Display *_display = 0;
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#ifdef HAVE_SIGACTION
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static void signalhandler(int sig)
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#else // HAVE_SIGACTION
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static RETSIGTYPE signalhandler(int sig)
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#endif // HAVE_SIGACTION
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{
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switch (sig) {
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case SIGSEGV:
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cout << "Segmentation fault. Aborting and dumping core.\n";
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abort();
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case SIGHUP:
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cout << "Restarting on request.\n";
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execvp(_argv[0], _argv);
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execvp(basename(_argv[0]), _argv);
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}
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_shutdown = true;
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#ifndef HAVE_SIGACTION
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// assume broken, braindead sysv signal semantics
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signal(sig, (RETSIGTYPE (*)(int)) signalhandler);
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#endif // HAVE_SIGACTION
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}
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int main(int, char **argv) {
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_argv = argv;
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#ifdef HAVE_SIGACTION
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struct sigaction action;
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action.sa_handler = signalhandler;
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action.sa_mask = sigset_t();
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action.sa_flags = SA_NOCLDSTOP | SA_NODEFER;
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sigaction(SIGPIPE, &action, NULL);
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sigaction(SIGSEGV, &action, NULL);
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sigaction(SIGFPE, &action, NULL);
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sigaction(SIGTERM, &action, NULL);
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sigaction(SIGINT, &action, NULL);
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sigaction(SIGHUP, &action, NULL);
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#else // !HAVE_SIGACTION
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signal(SIGPIPE, (RETSIGTYPE (*)(int)) signalhandler);
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signal(SIGSEGV, (RETSIGTYPE (*)(int)) signalhandler);
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signal(SIGFPE, (RETSIGTYPE (*)(int)) signalhandler);
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signal(SIGTERM, (RETSIGTYPE (*)(int)) signalhandler);
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signal(SIGINT, (RETSIGTYPE (*)(int)) signalhandler);
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signal(SIGHUP, (RETSIGTYPE (*)(int)) signalhandler);
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#endif // HAVE_SIGACTION
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_display = XOpenDisplay(_display_name);
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if (! _display) {
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cout << "Connection to X server '" << _display_name << "' failed.\n";
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return 1;
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}
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while (! _shutdown) {
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usleep(500);
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}
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XCloseDisplay(_display);
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return 0;
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}
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