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//
// Copyright © 2019 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "IBufferManager.hpp"
#include "ISendTimelinePacket.hpp"
#include "ProfilingUtils.hpp"
#include <boost/assert.hpp>
#include <memory>
namespace armnn
{
namespace profiling
{
class SendTimelinePacket : public ISendTimelinePacket
{
public:
SendTimelinePacket(IBufferManager& bufferManager)
: m_BufferManager(bufferManager)
, m_WriteBuffer(nullptr)
, m_Offset(0u)
, m_BufferSize(0u)
{}
/// Commits the current buffer and reset the member variables
void Commit() override;
/// Create and write a TimelineEntityBinaryPacket from the parameters to the buffer.
void SendTimelineEntityBinaryPacket(uint64_t profilingGuid) override;
/// Create and write a TimelineEventBinaryPacket from the parameters to the buffer.
void SendTimelineEventBinaryPacket(uint64_t timestamp, std::thread::id threadId, uint64_t profilingGuid) override;
/// Create and write a TimelineEventClassBinaryPacket from the parameters to the buffer.
void SendTimelineEventClassBinaryPacket(uint64_t profilingGuid) override;
/// Create and write a TimelineLabelBinaryPacket from the parameters to the buffer.
void SendTimelineLabelBinaryPacket(uint64_t profilingGuid, const std::string& label) override;
/// Create and write a TimelineMessageDirectoryPackage in the buffer
void SendTimelineMessageDirectoryPackage() override;
/// Create and write a TimelineRelationshipBinaryPacket from the parameters to the buffer.
virtual void SendTimelineRelationshipBinaryPacket(ProfilingRelationshipType relationshipType,
uint64_t relationshipGuid,
uint64_t headGuid,
uint64_t tailGuid) override;
private:
/// Reserves maximum packet size from buffer
void ReserveBuffer();
template <typename Func, typename ... Params>
void ForwardWriteBinaryFunction(Func& func, Params&& ... params);
IBufferManager& m_BufferManager;
IPacketBufferPtr m_WriteBuffer;
unsigned int m_Offset;
unsigned int m_BufferSize;
};
template <typename Func, typename ... Params>
void SendTimelinePacket::ForwardWriteBinaryFunction(Func& func, Params&& ... params)
{
try
{
ReserveBuffer();
BOOST_ASSERT(m_WriteBuffer);
unsigned int numberOfBytesWritten = 0;
while (true)
{
TimelinePacketStatus result = func(std::forward<Params>(params)...,
&m_WriteBuffer->GetWritableData()[m_Offset],
m_BufferSize,
numberOfBytesWritten);
switch (result)
{
case TimelinePacketStatus::BufferExhaustion:
Commit();
ReserveBuffer();
continue;
case TimelinePacketStatus::Error:
throw RuntimeException("Error processing while sending TimelineBinaryPacket", CHECK_LOCATION());
default:
m_Offset += numberOfBytesWritten;
m_BufferSize -= numberOfBytesWritten;
return;
}
}
}
catch (...)
{
throw RuntimeException("Error processing while sending TimelineBinaryPacket", CHECK_LOCATION());
}
}
} // namespace profiling
} // namespace armnn
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