From 867eba59ffd2276086a14f7b2632b390c94392d3 Mon Sep 17 00:00:00 2001
From: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Date: Mon, 3 Feb 2020 12:29:56 +0000
Subject: 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
---
 src/dynamic/sample/SampleTensorHandle.hpp | 78 +++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 src/dynamic/sample/SampleTensorHandle.hpp

(limited to 'src/dynamic/sample/SampleTensorHandle.hpp')

diff --git a/src/dynamic/sample/SampleTensorHandle.hpp b/src/dynamic/sample/SampleTensorHandle.hpp
new file mode 100644
index 0000000000..c08edc69b7
--- /dev/null
+++ b/src/dynamic/sample/SampleTensorHandle.hpp
@@ -0,0 +1,78 @@
+//
+// Copyright © 2020 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <backendsCommon/CpuTensorHandle.hpp>
+
+#include "SampleMemoryManager.hpp"
+
+namespace armnn
+{
+
+// An implementation of ITensorHandle with simple "bump the pointer" memory-management behaviour
+class SampleTensorHandle : public ITensorHandle
+{
+public:
+    SampleTensorHandle(const TensorInfo& tensorInfo, std::shared_ptr<SampleMemoryManager> &memoryManager);
+
+    SampleTensorHandle(const TensorInfo& tensorInfo,
+                       std::shared_ptr<SampleMemoryManager> &memoryManager,
+                       MemorySourceFlags importFlags);
+
+    ~SampleTensorHandle();
+
+    virtual void Manage() override;
+
+    virtual void Allocate() override;
+
+    virtual ITensorHandle* GetParent() const override
+    {
+        return nullptr;
+    }
+
+    virtual const void* Map(bool /* blocking = true */) const override;
+    using ITensorHandle::Map;
+
+    virtual void Unmap() const override
+    {}
+
+    TensorShape GetStrides() const override
+    {
+        return GetUnpaddedTensorStrides(m_TensorInfo);
+    }
+
+    TensorShape GetShape() const override
+    {
+        return m_TensorInfo.GetShape();
+    }
+
+    const TensorInfo& GetTensorInfo() const
+    {
+        return m_TensorInfo;
+    }
+
+    virtual MemorySourceFlags GetImportFlags() const override
+    {
+        return m_ImportFlags;
+    }
+
+    virtual bool Import(void* memory, MemorySource source) override;
+
+private:
+    void* GetPointer() const;
+
+    SampleTensorHandle(const SampleTensorHandle& other) = delete; // noncopyable
+    SampleTensorHandle& operator=(const SampleTensorHandle& other) = delete; //noncopyable
+
+    TensorInfo m_TensorInfo;
+
+    std::shared_ptr<SampleMemoryManager> m_MemoryManager;
+    SampleMemoryManager::Pool* m_Pool;
+    mutable void *m_UnmanagedMemory;
+    MemorySourceFlags m_ImportFlags;
+    bool m_Imported;
+};
+
+}
-- 
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