IVGCVSW-4399 Create Sample Dynamic backend

 * Move IWorkload and WorkloadInfo to include/armnn/backends
 * Add simple sample dynamic backend with addition workload
 * Add sample example to run dynamic backend
 * Unit tests

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I0753ce35b8e8a6223a1471388b49246d82438a44

1 files changed, 59 insertions, 0 deletions

diff --git a/src/dynamic/sample/SampleMemoryManager.hpp b/src/dynamic/sample/SampleMemoryManager.hpp
new file mode 100644
index 0000000000..0993bc1e2b
--- /dev/null
+++ b/src/dynamic/sample/SampleMemoryManager.hpp
@@ -0,0 +1,59 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <armnn/backends/IMemoryManager.hpp>
+
+#include <forward_list>
+#include <vector>
+
+namespace armnn
+{
+
+// An implementation of IMemoryManager to be used with SampleTensorHandle
+class SampleMemoryManager : public IMemoryManager
+{
+public:
+    SampleMemoryManager();
+    virtual ~SampleMemoryManager();
+
+    class Pool;
+
+    Pool* Manage(unsigned int numBytes);
+
+    void Allocate(Pool *pool);
+
+    void* GetPointer(Pool *pool);
+
+    void Acquire() override;
+    void Release() override;
+
+    class Pool
+    {
+    public:
+        Pool(unsigned int numBytes);
+        ~Pool();
+
+        void Acquire();
+        void Release();
+
+        void* GetPointer();
+
+        void Reserve(unsigned int numBytes);
+
+    private:
+        unsigned int m_Size;
+        void* m_Pointer;
+    };
+
+private:
+    SampleMemoryManager(const SampleMemoryManager&) = delete; // Noncopyable
+    SampleMemoryManager& operator=(const SampleMemoryManager&) = delete; // Noncopyable
+
+    std::forward_list<Pool> m_Pools;
+    std::vector<Pool*> m_FreePools;
+};
+
+}