/* This testcase is part of GDB, the GNU debugger. Copyright 2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdio.h> #include <string.h> #include <signal.h> #include <sys/time.h> static volatile int done; #ifdef SA_SIGINFO static void /* HANDLER */ handler (int sig, siginfo_t *info, void *context) { done = 1; } /* handler */ #else static void handler (int sig) { done = 1; } /* handler */ #endif main () { /* Set up the signal handler. */ { struct sigaction action; memset (&action, 0, sizeof (action)); #ifdef SA_SIGINFO action.sa_sigaction = handler; action.sa_flags |= SA_SIGINFO; #else action.sa_handler = handler; #endif sigaction (SIGVTALRM, &action, NULL); } /* Set up a one-off timer. A timer, rather than SIGSEGV, is used as after a timer handler finishes the interrupted code can safely resume. */ { struct itimerval itime; memset (&itime, 0, sizeof (itime)); itime.it_value.tv_usec = 250 * 1000; setitimer (ITIMER_VIRTUAL, &itime, NULL); } /* Wait. */ while (!done); return 0; } /* main */