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//
// Copyright © 2019 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "IBufferManager.hpp"
#include "ProfilingUtils.hpp"
#include <client/include/ISendTimelinePacket.hpp>
#include <common/include/Assert.hpp>
#include <memory>
namespace arm
{
namespace pipe
{
class SendTimelinePacket : public ISendTimelinePacket
{
public:
SendTimelinePacket(IBufferManager& bufferManager)
: m_BufferManager(bufferManager)
, m_WriteBuffer(nullptr)
, m_Offset(8u)
, m_RemainingBufferSize(0u)
, m_PacketDataLength(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, int threadId, uint64_t profilingGuid) override;
/// Create and write a TimelineEventClassBinaryPacket from the parameters to the buffer.
void SendTimelineEventClassBinaryPacket(uint64_t profilingGuid, uint64_t nameGuid) 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,
uint64_t attributeGuid) 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_RemainingBufferSize;
const unsigned int m_uint32_t_size = sizeof(uint32_t);
std::pair<uint32_t, uint32_t> m_PacketHeader;
uint32_t m_PacketDataLength;
bool m_DirectoryPackage = false;
};
template<typename Func, typename ... Params>
void SendTimelinePacket::ForwardWriteBinaryFunction(Func& func, Params&& ... params)
{
try
{
ReserveBuffer();
ARM_PIPE_ASSERT(m_WriteBuffer);
unsigned int numberOfBytesWritten = 0;
// Header will be prepended to the buffer on Commit()
while ( true )
{
TimelinePacketStatus result = func(std::forward<Params>(params)...,
&m_WriteBuffer->GetWritableData()[m_Offset],
m_RemainingBufferSize,
numberOfBytesWritten);
switch ( result )
{
case TimelinePacketStatus::BufferExhaustion:
Commit();
ReserveBuffer();
continue;
case TimelinePacketStatus::Error:
throw arm::pipe::ProfilingException("Error processing while sending TimelineBinaryPacket",
LOCATION());
default:
m_Offset += numberOfBytesWritten;
m_RemainingBufferSize -= numberOfBytesWritten;
return;
}
}
}
catch (const arm::pipe::BufferExhaustion& ex)
{
// ditto
throw ex;
}
catch (const arm::pipe::ProfilingException& ex)
{
// don't swallow in the catch all block
throw ex;
}
catch ( ... )
{
throw arm::pipe::ProfilingException("Unknown Exception thrown while sending TimelineBinaryPacket", LOCATION());
}
}
} // namespace pipe
} // namespace arm
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