1 files changed, 40 insertions, 0 deletions
diff --git a/inc/trigger.inc.php b/inc/trigger.inc.php
new file mode 100644
index 00000000..40d9c491
--- /dev/null
+++ b/inc/trigger.inc.php
@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * This is one giant class containing various functions that will generate
+ * required config files, daemon instances and more, mostly through the Taskmanager.
+ * Most function *should* only actually do something if it is required to do so.
+ * eg. a "launchSomething" function should only launch something if it isn't already
+ * running. Checking if something is running can happen in that very function, or in
+ * a task that the function is calling.
+ */
+class Trigger
+{
+	
+	/**
+	 * Compile iPXE pxelinux menu. Needs to be done whenever the server's IP
+	 * address changes.
+	 * 
+	 * @param boolean $force force recompilation even if it seems up to date
+	 * @return boolean|string true if already up to date, false if launching task failed, task-id otherwise
+	 */
+	public static function ipxe($force = false)
+	{
+		if (!$force && Property::getIPxeIp() === Property::getServerIp())
+			return true; // Nothing to do
+		$last = Property::getIPxeTaskId();
+		if ($last !== false) {
+			$status = Taskmanager::status($last);
+			if (isset($status['statusCode']) && ($status['statusCode'] === TASK_WAITING || $status['statusCode'] === TASK_RUNNING))
+				return false; // Already compiling
+		}
+		$task = Taskmanager::submit('CompileIPxe', array(
+			'ip' => Property::getServerIp()
+		));
+		if (!isset($task['id']))
+			return false;
+		Property::setIPxeTaskId($task['id']);
+		return $task['id'];
+	}
+
+}
+\ No newline at end of file