C++ (Cpp) read_pids Examples

Example #1

File: haproxy-systemd-wrapper.c Project: ebuzzing/haproxy-1.5

int main(int argc, char **argv)
{
	int status;

	wrapper_argc = argc;
	wrapper_argv = argv;

	--argc; ++argv;
	init(argc, argv);

	struct sigaction sa;
	memset(&sa, 0, sizeof(struct sigaction));
	sa.sa_handler = &signal_handler;
	sigaction(SIGUSR2, &sa, NULL);
	sigaction(SIGHUP, &sa, NULL);
	sigaction(SIGINT, &sa, NULL);
	sigaction(SIGTERM, &sa, NULL);

	if (getenv(REEXEC_FLAG) != NULL) {
		/* We are being re-executed: restart HAProxy gracefully */
		int i;
		char **pid_strv = NULL;
		int nb_pid = read_pids(&pid_strv);

		unsetenv(REEXEC_FLAG);
		spawn_haproxy(pid_strv, nb_pid);

		for (i = 0; i < nb_pid; ++i)
			free(pid_strv[i]);
		free(pid_strv);
	}
	else {
		/* Start a fresh copy of HAProxy */
		spawn_haproxy(NULL, 0);
	}

	status = -1;
	while (caught_signal || wait(&status) != -1 || errno == EINTR) {
		int sig = caught_signal;

		if (caught_signal == SIGUSR2 || caught_signal == SIGHUP) {
			caught_signal = 0;
			do_restart(sig);
		}
		else if (caught_signal == SIGINT || caught_signal == SIGTERM) {
			caught_signal = 0;
			do_shutdown(sig);
		}
	}

	fprintf(stderr, SD_NOTICE "haproxy-systemd-wrapper: exit, haproxy RC=%d\n",
			status);
	return status;
}

Example #2

File: haproxy-systemd-wrapper.c Project: Jimbly/node-https-websocket-loadbalance-test

static void signal_handler(int signum __attribute__((unused)))
{
	int i;
	char **pid_strv = NULL;
	int nb_pid = read_pids(&pid_strv);

	spawn_haproxy(pid_strv, nb_pid);

	for (i = 0; i < nb_pid; ++i)
		free(pid_strv[i]);
	free(pid_strv);
}

Example #3

File: haproxy-systemd-wrapper.c Project: raceli/haproxy

static void do_shutdown(void)
{
	int i, pid;
	char **pid_strv = NULL;
	int nb_pid = read_pids(&pid_strv);
	for (i = 0; i < nb_pid; ++i) {
		pid = atoi(pid_strv[i]);
		if (pid > 0) {
			fprintf(stderr, SD_DEBUG "haproxy-systemd-wrapper: SIGINT -> %d\n", pid);
			kill(pid, SIGINT);
			free(pid_strv[i]);
		}
	}
	free(pid_strv);
}

Example #4

File: haproxy-smf-wrapper.c Project: nathan7/haproxy-smf-wrapper

static void sigint_handler(int signum __attribute__((unused)))
{
	int i, pid;
	char **pid_strv = NULL;
	int nb_pid = read_pids(&pid_strv);
	for (i = 0; i < nb_pid; ++i) {
		pid = atoi(pid_strv[i]);
		if (pid > 0) {
			fprintf(stderr, SD_DEBUG "haproxy-smf-wrapper: SIGINT -> %d\n", pid);
			kill(pid, SIGINT);
			free(pid_strv[i]);
		}
	}
	free(pid_strv);
}

Example #5

File: haproxy-systemd-wrapper.c Project: ebuzzing/haproxy-1.5

/* handles SIGTERM and SIGINT only */
static void do_shutdown(int sig)
{
	int i, pid;
	char **pid_strv = NULL;
	int nb_pid = read_pids(&pid_strv);
	for (i = 0; i < nb_pid; ++i) {
		pid = atoi(pid_strv[i]);
		if (pid > 0) {
			fprintf(stderr, SD_DEBUG "haproxy-systemd-wrapper: %s -> %d.\n",
			        sig == SIGTERM ? "SIGTERM" : "SIGINT", pid);
			kill(pid, sig);
			free(pid_strv[i]);
		}
	}
	free(pid_strv);
}

Example #6

File: haproxy-smf-wrapper.c Project: nathan7/haproxy-smf-wrapper

int main(int argc, char **argv)
{
	int status;

	wrapper_argc = argc;
	wrapper_argv = argv;

	--argc; ++argv;
	init(argc, argv);

	signal(SIGINT, &sigint_handler);
	signal(SIGHUP, &sighup_handler);

	if (getenv(REEXEC_FLAG) != NULL) {
		/* We are being re-executed: restart HAProxy gracefully */
		int i;
		char **pid_strv = NULL;
		int nb_pid = read_pids(&pid_strv);
		sigset_t sigs;

		unsetenv(REEXEC_FLAG);
		spawn_haproxy(pid_strv, nb_pid);

		/* Unblock SIGHUP which was blocked by the signal handler
		 * before re-exec */
		sigprocmask(SIG_BLOCK, NULL, &sigs);
		sigdelset(&sigs, SIGHUP);
		sigprocmask(SIG_SETMASK, &sigs, NULL);

		for (i = 0; i < nb_pid; ++i)
			free(pid_strv[i]);
		free(pid_strv);
	}
	else {
		/* Start a fresh copy of HAProxy */
		spawn_haproxy(NULL, 0);
	}

	status = -1;
	while (-1 != wait(&status) || errno == EINTR)
		;

	fprintf(stderr, SD_NOTICE "haproxy-smf-wrapper: exit, haproxy RC=%d\n",
			status);
	return status;
}