util/epist/main.cc (raw)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 |
// -*- mode: C++; indent-tabs-mode: nil; -*- // main.cc for Epistory - a key handler for NETWM/EWMH window managers. // Copyright (c) 2002 - 2002 Ben Jansens <ben at orodu.net> // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. #ifdef HAVE_CONFIG_H # include "../../config.h" #endif // HAVE_CONFIG_H extern "C" { #include <X11/Xlib.h> #ifdef HAVE_UNISTD_H # include <sys/types.h> # include <unistd.h> #endif // HAVE_UNISTD_H #ifdef HAVE_SIGNAL_H # include <signal.h> #endif // HAVE_SIGNAL_H #ifdef HAVE_SYS_SIGNAL_H # include <sys/signal.h> #endif // HAVE_SYS_SIGNAL_H #ifdef HAVE_LIBGEN_H # include <libgen.h> #endif // HAVE_LIBGEN_H } #include <iostream> using std::cout; using std::endl; bool _shutdown = false; char **_argv; char *_display_name = 0; Display *_display = 0; #ifdef HAVE_SIGACTION static void signalhandler(int sig) #else // HAVE_SIGACTION static RETSIGTYPE signalhandler(int sig) #endif // HAVE_SIGACTION { switch (sig) { case SIGSEGV: cout << "Segmentation fault. Aborting and dumping core.\n"; abort(); case SIGHUP: cout << "Restarting on request.\n"; execvp(_argv[0], _argv); execvp(basename(_argv[0]), _argv); } _shutdown = true; #ifndef HAVE_SIGACTION // assume broken, braindead sysv signal semantics signal(sig, (RETSIGTYPE (*)(int)) signalhandler); #endif // HAVE_SIGACTION } int main(int, char **argv) { _argv = argv; #ifdef HAVE_SIGACTION struct sigaction action; action.sa_handler = signalhandler; action.sa_mask = sigset_t(); action.sa_flags = SA_NOCLDSTOP | SA_NODEFER; sigaction(SIGPIPE, &action, NULL); sigaction(SIGSEGV, &action, NULL); sigaction(SIGFPE, &action, NULL); sigaction(SIGTERM, &action, NULL); sigaction(SIGINT, &action, NULL); sigaction(SIGHUP, &action, NULL); #else // !HAVE_SIGACTION signal(SIGPIPE, (RETSIGTYPE (*)(int)) signalhandler); signal(SIGSEGV, (RETSIGTYPE (*)(int)) signalhandler); signal(SIGFPE, (RETSIGTYPE (*)(int)) signalhandler); signal(SIGTERM, (RETSIGTYPE (*)(int)) signalhandler); signal(SIGINT, (RETSIGTYPE (*)(int)) signalhandler); signal(SIGHUP, (RETSIGTYPE (*)(int)) signalhandler); #endif // HAVE_SIGACTION _display = XOpenDisplay(_display_name); if (! _display) { cout << "Connection to X server '" << _display_name << "' failed.\n"; return 1; } while (! _shutdown) { usleep(500); } XCloseDisplay(_display); return 0; } |