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17 * @file contrib/timeout_watchdog.c
18 * @brief small tool starting a child process, waiting that it terminates or killing it after a given timeout period
19 * @author Matthias Wachs
22 #include <sys/types.h>
33 sigchld_handler (int val)
39 waitpid (child, &status, 0);
40 if (WIFEXITED (status) != 0)
42 ret = WEXITSTATUS (status);
43 printf ("Test process exited with result %u\n", ret);
45 if (WIFSIGNALED (status) != 0)
47 ret = WTERMSIG (status);
48 printf ("Test process was signaled %u\n", ret);
55 sigint_handler (int val)
72 ("arg 1: timeout in sec., arg 2: executable, arg<n> arguments\n");
76 timeout = atoi (argv[1]);
81 /* with getpgid() it does not compile, but getpgrp is the BSD version and working */
84 signal (SIGCHLD, sigchld_handler);
85 signal (SIGABRT, sigint_handler);
86 signal (SIGFPE, sigint_handler);
87 signal (SIGILL, sigint_handler);
88 signal (SIGINT, sigint_handler);
89 signal (SIGSEGV, sigint_handler);
90 signal (SIGTERM, sigint_handler);
95 /* int setpgrp(pid_t pid, pid_t pgid); is not working on this machine */
96 //setpgrp (0, pid_t gpid);
99 execvp (argv[2], &argv[2]);
105 printf ("Child processes were killed after timeout of %u seconds\n",
113 /* end of timeout_watchdog.c */