117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* File: main.c
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*
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* This file is part of XSCHEM,
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* a schematic capture and Spice/Vhdl/Verilog netlisting tool for circuit
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* simulation.
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* Copyright (C) 1998-2020 Stefan Frederik Schippers
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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 2 of the License, or
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* (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xschem.h"
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#ifdef __unix__
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#include <sys/wait.h>
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#endif
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#include <locale.h>
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void sig_handler(int s){
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#ifndef IN_MEMORY_UNDO
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char emergency_prefix[PATH_MAX];
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const char *emergency_dir;
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#endif
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if(s==SIGINT) {
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fprintf(errfp, "Use 'exit' to close the program\n");
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return;
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}
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#ifndef IN_MEMORY_UNDO
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/* 20180923 no more mkdtemp */
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my_snprintf(emergency_prefix, S(emergency_prefix), "xschem_emergencysave_%s_",
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skip_dir(xctx->sch[xctx->currsch]));
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if( !(emergency_dir = create_tmpdir(emergency_prefix)) ) {
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fprintf(errfp, "xinit(): problems creating emergency save dir\n");
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/* tcleval( "exit"); */
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tcleval("exit");
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}
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if(rename(xctx->undo_dirname, emergency_dir)) {
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fprintf(errfp, "rename dir %s to %s failed\n", xctx->undo_dirname, emergency_dir);
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}
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fprintf(errfp, "EMERGENCY SAVE DIR: %s\n", emergency_dir);
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#endif
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fprintf(errfp, "\nFATAL: signal %d\n", s);
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fprintf(errfp, "while editing: %s\n", skip_dir(xctx->sch[xctx->currsch]));
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exit(EXIT_FAILURE);
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}
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void child_handler(int signum)
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{
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/* fprintf(errfp, "SIGCHLD received\n"); */
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#ifdef __unix__
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wait(NULL);
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#endif
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}
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int main(int argc, char **argv)
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{
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my_strdup(45, &xschem_executable, argv[0]);
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signal(SIGINT, sig_handler);
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signal(SIGSEGV, sig_handler);
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signal(SIGILL, sig_handler);
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signal(SIGTERM, sig_handler);
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signal(SIGFPE, sig_handler);
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/* signal(SIGCHLD, child_handler); */ /* avoid zombies 20180925 --> conflicts with tcl exec */
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errfp=stderr;
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/* 20181013 check for empty or non existing DISPLAY *before* calling Tk_Main or Tcl_Main */
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#ifdef __unix__
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if(!getenv("DISPLAY") || !getenv("DISPLAY")[0]) has_x=0;
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#endif
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process_options(argc, argv);
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if(debug_var>=1 && !has_x)
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fprintf(errfp, "main(): no DISPLAY set, assuming no X available\n");
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/* detach from console (fork a child and close std file descriptors) */
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#ifdef __unix__
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if(batch_mode) {
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pid_t pid = fork();
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if(pid < 0) {
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fprintf(errfp, "main(): fork() failed\n");
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exit(EXIT_FAILURE);
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}
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if(pid == 0) {
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/* The child becomes the daemon. */
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/* Detach all standard I/O descriptors */
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close(0); /* stdin */
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close(1); /* stdout */
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close(2); /* stderr */
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setsid(); /* new session */
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/* Ok, now detached */
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}
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else {
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/* terminate parent */
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exit(0);
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}
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}
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#endif
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if(has_x) Tk_Main(1, argv, Tcl_AppInit);
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else Tcl_Main(1, argv, Tcl_AppInit);
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return 0;
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}
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