Function acl_master_spawn

app/master/daemon/master/master_spawn.cpp:241–348

}

void acl_master_spawn(ACL_MASTER_SERV *serv)
{
	const char *myname = "acl_master_spawn";
	ACL_MASTER_PROC *proc;
	ACL_MASTER_PID   pid;

	if (env_gen == 0) {
		env_gen = acl_vstring_alloc(100);
	}

	/*
	 * Sanity checks. The master_avail module is supposed
	 * to know what it is doing.
	 */

	if (!(serv->flags & ACL_MASTER_FLAG_RELOADING)) {
		if (!ACL_MASTER_LIMIT_OK(serv->max_proc, serv->total_proc)) {
			acl_msg_warn("%s(%d)->%s: at process limit %d",
				__FILE__, __LINE__, myname, serv->total_proc);
		}

		if (serv->avail_proc > 0 && (serv->prefork_proc <= 0
			|| serv->avail_proc > serv->prefork_proc)) {

			acl_msg_warn("%s(%d)->%s: processes available: %d, "
				"processes prefork: %d", __FILE__, __LINE__,
				myname, serv->avail_proc, serv->prefork_proc);
		}
	}

	/* Delete ACL_MASTER_FLAG_RELOADING set in acl_master_restart_service */
	else {
		serv->flags &= ~ACL_MASTER_FLAG_RELOADING;
	}

	if (serv->flags & ACL_MASTER_FLAG_THROTTLE) {
		acl_msg_warn("%s(%d)-%s: throttled service: %s",
			__FILE__, __LINE__, myname, serv->path);
	}

	/*
	 * Create a child process and connect parent and
	 * child via the status pipe.
	 */
	master_generation += 1;
	switch (pid = fork()) {

	/*
	 * Error. We're out of some essential resource. Best recourse is to
	 * try again later.
	 */
	case -1:
		acl_msg_warn("%s: fork: %s -- throttling", myname, strerror(errno));
		master_throttle(serv);
		break;

	/*
	 * Child process. Redirect child stdin/stdout to the parent-child