1 files changed, 99 insertions, 0 deletions
diff --git a/lib/checker/checkercomponent.hpp b/lib/checker/checkercomponent.hpp
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+++ b/lib/checker/checkercomponent.hpp
@@ -0,0 +1,99 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#ifndef CHECKERCOMPONENT_H
+#define CHECKERCOMPONENT_H
+
+#include "checker/checkercomponent-ti.hpp"
+#include "icinga/service.hpp"
+#include "base/configobject.hpp"
+#include "base/timer.hpp"
+#include "base/utility.hpp"
+#include <boost/multi_index_container.hpp>
+#include <boost/multi_index/ordered_index.hpp>
+#include <boost/multi_index/key_extractors.hpp>
+#include <condition_variable>
+#include <mutex>
+#include <thread>
+
+namespace icinga
+{
+
+/**
+ * @ingroup checker
+ */
+struct CheckableScheduleInfo
+{
+	Checkable::Ptr Object;
+	double NextCheck;
+};
+
+/**
+ * @ingroup checker
+ */
+struct CheckableNextCheckExtractor
+{
+	typedef double result_type;
+
+	/**
+	 * @threadsafety Always.
+	 */
+	double operator()(const CheckableScheduleInfo& csi)
+	{
+		return csi.NextCheck;
+	}
+};
+
+/**
+ * @ingroup checker
+ */
+class CheckerComponent final : public ObjectImpl<CheckerComponent>
+{
+public:
+	DECLARE_OBJECT(CheckerComponent);
+	DECLARE_OBJECTNAME(CheckerComponent);
+
+	typedef boost::multi_index_container<
+		CheckableScheduleInfo,
+		boost::multi_index::indexed_by<
+			boost::multi_index::ordered_unique<boost::multi_index::member<CheckableScheduleInfo, Checkable::Ptr, &CheckableScheduleInfo::Object> >,
+			boost::multi_index::ordered_non_unique<CheckableNextCheckExtractor>
+		>
+	> CheckableSet;
+
+	void OnConfigLoaded() override;
+	void Start(bool runtimeCreated) override;
+	void Stop(bool runtimeRemoved) override;
+
+	static void StatsFunc(const Dictionary::Ptr& status, const Array::Ptr& perfdata);
+	unsigned long GetIdleCheckables();
+	unsigned long GetPendingCheckables();
+
+private:
+	std::mutex m_Mutex;
+	std::condition_variable m_CV;
+	bool m_Stopped{false};
+	std::thread m_Thread;
+
+	CheckableSet m_IdleCheckables;
+	CheckableSet m_PendingCheckables;
+
+	Timer::Ptr m_ResultTimer;
+
+	void CheckThreadProc();
+	void ResultTimerHandler();
+
+	void ExecuteCheckHelper(const Checkable::Ptr& checkable);
+
+	void AdjustCheckTimer();
+
+	void ObjectHandler(const ConfigObject::Ptr& object);
+	void NextCheckChangedHandler(const Checkable::Ptr& checkable);
+
+	void RescheduleCheckTimer();
+
+	static CheckableScheduleInfo GetCheckableScheduleInfo(const Checkable::Ptr& checkable);
+};
+
+}
+
+#endif /* CHECKERCOMPONENT_H */