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22 * @file contrib/timeout_watchdog.c
23 * @brief small tool starting a child process, waiting that it terminates or killing it after a given timeout period
24 * @author Matthias Wachs
27 #include <sys/types.h>
38 sigchld_handler (int val)
44 waitpid (child, &status, 0);
45 if (WIFEXITED (status) != 0)
47 ret = WEXITSTATUS (status);
48 printf ("Test process exited with result %u\n", ret);
50 if (WIFSIGNALED (status) != 0)
52 ret = WTERMSIG (status);
53 printf ("Test process was signaled %u\n", ret);
60 sigint_handler (int val)
77 ("arg 1: timeout in sec., arg 2: executable, arg<n> arguments\n");
81 timeout = atoi (argv[1]);
86 /* with getpgid() it does not compile, but getpgrp is the BSD version and working */
89 signal (SIGCHLD, sigchld_handler);
90 signal (SIGABRT, sigint_handler);
91 signal (SIGFPE, sigint_handler);
92 signal (SIGILL, sigint_handler);
93 signal (SIGINT, sigint_handler);
94 signal (SIGSEGV, sigint_handler);
95 signal (SIGTERM, sigint_handler);
100 /* int setpgrp(pid_t pid, pid_t pgid); is not working on this machine */
101 //setpgrp (0, pid_t gpid);
104 execvp (argv[2], &argv[2]);
110 printf ("Child processes were killed after timeout of %u seconds\n",
118 /* end of timeout_watchdog.c */