COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/arm_compute/runtime/Scheduler.h b/arm_compute/runtime/Scheduler.h
new file mode 100644
index 0000000..21f944b
--- /dev/null
+++ b/arm_compute/runtime/Scheduler.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_SCHEDULER_H__
+#define __ARM_COMPUTE_SCHEDULER_H__
+
+#include "arm_compute/runtime/IScheduler.h"
+#include <memory>
+
+namespace arm_compute
+{
+/** Configurable scheduler which supports multiple multithreading APIs and choosing between different schedulers at runtime. */
+class Scheduler
+{
+public:
+    enum class Type
+    {
+        ST,    // Single thread.
+        CPP,   // C++11 threads.
+        OMP,   // OpenMP.
+        CUSTOM // Provided by the user.
+    };
+    /** Sets the user defined scheduler and makes it the active scheduler.
+     *
+     * @param[in] scheduler A shared pointer to a custom scheduler implemented by the user.
+     */
+    static void set(std::shared_ptr<IScheduler> &scheduler);
+    /** Access the scheduler singleton.
+     *
+     * @return A reference to the scheduler object.
+     */
+    static IScheduler &get();
+    /** Set the active scheduler.
+     *
+     * Only one scheduler can be enabled at any time.
+     *
+     * @param[in] t the type of the scheduler to be enabled.
+     */
+    static void set(Type t);
+    /** Returns the type of the active scheduler.
+     *
+     * @return The current scheduler's type.
+     */
+    static Type get_type();
+    /** Returns true if the given scheduler type is supported. False otherwise.
+     *
+     * @return true if the given scheduler type is supported. False otherwise.
+     */
+    static bool is_available(Type t);
+
+private:
+    static Type                        _scheduler_type;
+    static std::shared_ptr<IScheduler> _custom_scheduler;
+    Scheduler();
+};
+}
+#endif /* __ARM_COMPUTE_SCHEDULER_H__ */