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3 (C) 2010 Christian Grothoff (and other contributing authors)
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13 General Public License for more details.
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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>
36 static void sigchld_handler(int val)
41 waitpid (child, &status, 0);
42 if (WIFEXITED(status) != 0)
44 ret = WEXITSTATUS(status);
45 printf("Test process exited with result %u\n", ret);
47 if (WIFSIGNALED(status) != 0)
49 ret = WTERMSIG(status);
50 printf("Test process was signaled %u\n", ret);
55 static void sigint_handler(int val)
61 int main(int argc, char *argv[])
68 printf("arg 1: timeout in sec., arg 2: executable, arg<n> arguments\n");
72 timeout = atoi(argv[1]);
77 /* with getpgid() it does not compile, but getpgrp is the BSD version and working */
80 signal(SIGCHLD, sigchld_handler);
81 signal(SIGABRT, sigint_handler);
82 signal(SIGFPE, sigint_handler);
83 signal(SIGILL, sigint_handler);
84 signal(SIGINT, sigint_handler);
85 signal(SIGSEGV, sigint_handler);
86 signal(SIGTERM, sigint_handler);
91 /* int setpgrp(pid_t pid, pid_t pgid); is not working on this machine*/
92 //setpgrp (0, pid_t gpid);
94 execvp(argv[2],&argv[2]);
100 printf("Child processes were killed after timeout of %u seconds\n",timeout);
107 /* end of timeout_watchdog.c */