Adding upstream version 2.13.6.upstream/2.13.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/lib/base/loader.hpp b/lib/base/loader.hpp
new file mode 100644
index 0000000..704a32a
--- /dev/null
+++ b/lib/base/loader.hpp
@@ -0,0 +1,55 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#ifndef LOADER_H
+#define LOADER_H
+
+#include "base/i2-base.hpp"
+#include "base/string.hpp"
+#include <boost/thread/tss.hpp>
+#include <queue>
+
+namespace icinga
+{
+
+struct DeferredInitializer
+{
+public:
+	DeferredInitializer(std::function<void ()> callback, int priority)
+		: m_Callback(std::move(callback)), m_Priority(priority)
+	{ }
+
+	bool operator<(const DeferredInitializer& other) const
+	{
+		return m_Priority < other.m_Priority;
+	}
+
+	void operator()()
+	{
+		m_Callback();
+	}
+
+private:
+	std::function<void ()> m_Callback;
+	int m_Priority;
+};
+
+/**
+ * Loader helper functions.
+ *
+ * @ingroup base
+ */
+class Loader
+{
+public:
+	static void AddDeferredInitializer(const std::function<void ()>& callback, int priority = 0);
+	static void ExecuteDeferredInitializers();
+
+private:
+	Loader();
+
+	static boost::thread_specific_ptr<std::priority_queue<DeferredInitializer> >& GetDeferredInitializers();
+};
+
+}
+
+#endif /* LOADER_H */