1 files changed, 73 insertions, 0 deletions
diff --git a/include/distortos/architecture/InterruptMaskingUnmaskingLock.hpp b/include/distortos/architecture/InterruptMaskingUnmaskingLock.hpp
new file mode 100644
index 0000000..65bd0f0
--- /dev/null
+++ b/include/distortos/architecture/InterruptMaskingUnmaskingLock.hpp
@@ -0,0 +1,73 @@
+/**
+ * \file
+ * \brief InterruptMaskingUnmaskingLock class header
+ *
+ * \author Copyright (C) 2014-2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
+ *
+ * \par License
+ * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
+ * distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_
+#define INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_
+
+#include "distortos/architecture/restoreInterruptMasking.hpp"
+
+namespace distortos
+{
+
+namespace architecture
+{
+
+/**
+ * \brief InterruptMaskingUnmaskingLock class is a RAII wrapper for interrupt mask manipulation.
+ *
+ * \tparam Function is a reference to function which modifies interrupt mask and returns InterruptMask;
+ * enableInterruptMasking() or disableInterruptMasking() should be used
+ */
+
+template<InterruptMask (& Function)()>
+class InterruptMaskingUnmaskingLock
+{
+public:
+
+	/**
+	 * \brief InterruptMaskingUnmaskingLock's constructor
+	 *
+	 * Enables/disables interrupt masking, saving current interrupt mask for use in destructor.
+	 */
+
+	InterruptMaskingUnmaskingLock() :
+			interruptMask_{Function()}
+	{
+
+	}
+
+	/**
+	 * \brief InterruptMaskingUnmaskingLock's destructor
+	 *
+	 * Restores previous interrupt masking state by restoring interrupt mask saved in constructor.
+	 */
+
+	~InterruptMaskingUnmaskingLock()
+	{
+		restoreInterruptMasking(interruptMask_);
+	}
+
+	InterruptMaskingUnmaskingLock(const InterruptMaskingUnmaskingLock&) = delete;
+	InterruptMaskingUnmaskingLock(InterruptMaskingUnmaskingLock&&) = delete;
+	InterruptMaskingUnmaskingLock& operator=(const InterruptMaskingUnmaskingLock&) = delete;
+	InterruptMaskingUnmaskingLock& operator=(InterruptMaskingUnmaskingLock&&) = delete;
+
+private:
+
+	/// interrupt mask
+	const InterruptMask interruptMask_;
+};
+
+}	// namespace architecture
+
+}	// namespace distortos
+
+#endif	// INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_