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//
// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <armnn/IAsyncExecutionCallback.hpp>
#include <armnn/IWorkingMemHandle.hpp>
#include <armnn/Types.hpp>
#include <condition_variable>
#include <mutex>
#include <thread>
#include <queue>
#include <unordered_map>
namespace armnn
{
namespace experimental
{
using InferenceId = uint64_t;
class AsyncExecutionCallback final : public IAsyncExecutionCallback
{
private:
static InferenceId nextID;
public:
AsyncExecutionCallback(std::queue<InferenceId>& notificationQueue,
std::mutex& mutex,
std::condition_variable& condition)
: m_NotificationQueue(notificationQueue)
, m_Mutex(mutex)
, m_Condition(condition)
, m_InferenceId(++nextID)
{}
~AsyncExecutionCallback()
{}
void Notify(armnn::Status status, InferenceTimingPair timeTaken);
InferenceId GetInferenceId()
{
return m_InferenceId;
}
armnn::Status GetStatus() const;
HighResolutionClock GetStartTime() const;
HighResolutionClock GetEndTime() const;
private:
std::queue<InferenceId>& m_NotificationQueue;
std::mutex& m_Mutex;
std::condition_variable& m_Condition;
HighResolutionClock m_StartTime;
HighResolutionClock m_EndTime;
armnn::Status m_Status = Status::Failure;
InferenceId m_InferenceId;
};
InferenceId AsyncExecutionCallback::nextID = 0u;
// Manager to create and monitor AsyncExecutionCallbacks
// GetNewCallback will create a callback for use in Threadpool::Schedule
// GetNotifiedCallback will return the first callback to be notified (finished execution)
class AsyncCallbackManager
{
public:
std::shared_ptr<AsyncExecutionCallback> GetNewCallback();
std::shared_ptr<AsyncExecutionCallback> GetNotifiedCallback();
private:
std::mutex m_Mutex;
std::condition_variable m_Condition;
std::unordered_map<InferenceId, std::shared_ptr<AsyncExecutionCallback>> m_Callbacks;
std::queue<InferenceId> m_NotificationQueue;
};
} // namespace experimental
} // namespace armnn
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