Adding upstream version 0.11.1.upstream/0.11.1upstream

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

1 files changed, 49 insertions, 0 deletions

diff --git a/src/safe/accessmode.h b/src/safe/accessmode.h
new file mode 100644
index 0000000..3dd0f4f
--- /dev/null
+++ b/src/safe/accessmode.h
@@ -0,0 +1,49 @@
+/**
+ * @file accessmode.h
+ * @author L.-C. C.
+ * @brief
+ * @version 0.1
+ * @date 2019-01-20
+ *
+ * @copyright Copyright (c) 2019
+ *
+ */
+
+#pragma once
+
+#include <mutex>
+#if __cplusplus >= 201402L
+#include <shared_mutex>
+#endif // __cplusplus >= 201402L
+
+namespace safe
+{
+	enum class AccessMode
+	{
+		ReadOnly,
+		ReadWrite
+	};
+
+	template<typename LockType>
+	struct AccessTraits
+	{
+		static constexpr bool IsReadOnly = false;
+	};
+	template<typename MutexType>
+	struct AccessTraits<std::lock_guard<MutexType>>
+	{
+		static constexpr bool IsReadOnly = false;
+	};
+	template<typename MutexType>
+	struct AccessTraits<std::unique_lock<MutexType>>
+	{
+		static constexpr bool IsReadOnly = false;
+	};
+#if __cplusplus >= 201402L
+	template<typename MutexType>
+	struct AccessTraits<std::shared_lock<MutexType>>
+	{
+		static constexpr bool IsReadOnly = true;
+	};
+#endif // __cplusplus >= 201402L
+} // namespace safe