static int script_run(struct script *script)
{
sigset_t mask, old_mask;
siginfo_t info;
pid_t pid, *pids;
int i, num_commands, status, ret = 0;
for (num_commands = 0; script->commands[num_commands]; num_commands++)
;
if (!num_commands) {
/* nothing to do */
return 0;
}
if (create_config_files(script->configs))
return 1;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigaddset(&mask, SIGTERM);
sigaddset(&mask, SIGQUIT);
sigaddset(&mask, SIGINT);
/* block the signals */
if (sigprocmask(SIG_BLOCK, &mask, &old_mask) < 0) {
pr_err("sigprocmask() failed: %m");
return 1;
}
pids = xcalloc(num_commands, sizeof(*pids));
for (i = 0; i < num_commands; i++) {
pids[i] = start_program(script->commands[i], &old_mask);
if (!pids[i]) {
kill(getpid(), SIGTERM);
break;
}
}
/* wait for one of the blocked signals */
while (1) {
if (sigwaitinfo(&mask, &info) < 0) {
if (errno == EINTR)
continue;
pr_err("sigwaitinfo() failed: %m");
break;
}
/*
* assume only the first process (i.e. chronyd or ntpd) is
* essential and continue if other processes terminate
*/
if (info.si_signo == SIGCHLD && info.si_pid != pids[0]) {
pr_info("process %d terminated (ignored)", info.si_pid);
continue;
}
pr_info("received signal %d", info.si_signo);
break;
}
/* kill all started processes */
for (i = 0; i < num_commands; i++) {
if (pids[i] > 0) {
pr_debug("killing process %d", pids[i]);
kill(pids[i], SIGTERM);
}
}
while ((pid = wait(&status)) >= 0) {
if (!WIFEXITED(status)) {
pr_info("process %d terminated abnormally", pid);
ret = 1;
} else {
if (WEXITSTATUS(status))
ret = 1;
pr_info("process %d terminated with status %d", pid,
WEXITSTATUS(status));
}
}
free(pids);
if (remove_config_files(script->configs))
return 1;
return ret;
}
static int script_run(struct script *script)
{
sigset_t mask, old_mask;
siginfo_t info;
pid_t pid, *pids;
int i, num_commands, status, ret = 0;
if (create_config_files(script->configs))
return 1;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigaddset(&mask, SIGTERM);
sigaddset(&mask, SIGQUIT);
sigaddset(&mask, SIGINT);
/* block the signals */
if (sigprocmask(SIG_BLOCK, &mask, &old_mask) < 0) {
pr_err("sigprocmask() failed: %m");
return 1;
}
for (num_commands = 0; script->commands[num_commands]; num_commands++)
;
pids = calloc(num_commands, sizeof(*pids));
for (i = 0; i < num_commands; i++) {
pids[i] = start_program(script->commands[i], &old_mask);
if (!pids[i]) {
kill(getpid(), SIGTERM);
break;
}
}
/* wait for one of the blocked signals */
while (1) {
if (sigwaitinfo(&mask, &info) > 0)
break;
if (errno != EINTR) {
pr_err("sigwaitinfo() failed: %m");
break;
}
}
pr_info("received signal %d", info.si_signo);
/* kill all started processes */
for (i = 0; i < num_commands; i++) {
if (pids[i] > 0) {
pr_debug("killing process %d", pids[i]);
kill(pids[i], SIGTERM);
}
}
while ((pid = wait(&status)) >= 0) {
if (!WIFEXITED(status)) {
pr_info("process %d terminated abnormally", pid);
ret = 1;
} else {
if (WEXITSTATUS(status))
ret = 1;
pr_info("process %d terminated with status %d", pid,
WEXITSTATUS(status));
}
}
free(pids);
if (remove_config_files(script->configs))
return 1;
return ret;
}
