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//
// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
namespace armnn
{
using NetworkId = int;
namespace experimental
{
struct ExecutionData;
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.
virtual void Allocate() = 0;
/// Free the backing memory required for execution.
virtual void Free() = 0;
/// IsAllocated returns true if the backing memory is currently allocated.
virtual bool IsAllocated() = 0;
/// Get the WorkingMemDescriptor at an index. The WorkingMemDescriptors are stored in the same order as
/// the Workloads in a topologically sorted graph.
virtual WorkingMemDescriptor& GetWorkingMemDescriptorAt(unsigned int id) = 0;
/// Get the ExecutionData at an index.
/// The ExecutionData is paired with a BackendId to be able to call backend specific functions upon it.
/// The ExecutionData are stored in the same order as the Workloads in a topologically sorted graph.
virtual std::pair<BackendId, ExecutionData>& GetExecutionDataAt(unsigned int id) = 0;
};
} // end experimental namespace
} // end armnn namespace
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