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//
// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <mutex>
namespace armnn
{
using NetworkId = int;
namespace experimental
{
struct WorkingMemDescriptor;
class IWorkingMemHandle
{
public:
virtual ~IWorkingMemHandle() {};
/// Returns the NetworkId of the Network that this IWorkingMemHandle works with.
virtual NetworkId GetNetworkId() = 0;
/// Allocate the backing memory required for execution. If this is not called, then allocation will be
/// deferred to execution time. The mutex must be locked.
virtual void Allocate() = 0;
/// Free the backing memory required for execution. The mutex must be locked.
virtual void Free() = 0;
/// IsAllocated returns true if the backing memory is currently allocated. The mutex must be locked.
virtual bool IsAllocated() = 0;
/// Get a mutex which can be used for synchronizing access to the WorkingMemHandle object.
virtual std::mutex& GetMutex() = 0;
/// Get the WorkingMemDescriptor for a Layer. The mutex must be locked.
virtual WorkingMemDescriptor& GetWorkingMemDescriptor(LayerGuid id) = 0;
/// Get the WorkingMemDescriptor at an index. The WorkingMemDescriptors are stored in the same order as
/// the Workloads in a topologically sorted graph. The mutex must be locked.
virtual WorkingMemDescriptor& GetWorkingMemDescriptorAt(unsigned int id) = 0;
};
} // end experimental namespace
} // end armnn namespace
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