IVGCVSW-2056+IVGCVSW-2064 : move ClContextControl to the ClBackendexperimental/nhwc-preview

* add IBackendContext interface
* add ClBackendContext implementation

Change-Id: I13e4d12b73d4c7775069587675276f7cee7d630b

1 files changed, 36 insertions, 0 deletions

diff --git a/src/backends/cl/ClBackendContext.hpp b/src/backends/cl/ClBackendContext.hpp
new file mode 100644
index 0000000000..24497c2249
--- /dev/null
+++ b/src/backends/cl/ClBackendContext.hpp
@@ -0,0 +1,36 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <backendsCommon/IBackendContext.hpp>
+#include <unordered_set>
+#include <mutex>
+
+namespace armnn
+{
+
+class ClBackendContext : public IBackendContext
+{
+public:
+    ClBackendContext(const IRuntime::CreationOptions& options);
+
+    bool BeforeLoadNetwork(NetworkId networkId) override;
+    bool AfterLoadNetwork(NetworkId networkId) override;
+
+    bool BeforeUnloadNetwork(NetworkId networkId) override;
+    bool AfterUnloadNetwork(NetworkId networkId) override;
+
+    ~ClBackendContext() override;
+
+private:
+    std::mutex m_Mutex;
+    struct ClContextControlWrapper;
+    std::unique_ptr<ClContextControlWrapper> m_ClContextControlWrapper;
+
+    std::unordered_set<NetworkId> m_NetworkIds;
+
+};
+
+} // namespace armnn
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