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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#ifndef __EVENTPIPE_FILE_H__
#define __EVENTPIPE_FILE_H__
#ifdef FEATURE_PERFTRACING
#include "eventpipe.h"
#include "eventpipeblock.h"
#include "eventpipeeventinstance.h"
#include "fastserializableobject.h"
class FastSerializer;
class EventPipeFile final : public FastSerializableObject
{
public:
EventPipeFile(StreamWriter *pStreamWriter);
~EventPipeFile();
void WriteEvent(EventPipeEventInstance &instance);
void Flush();
const char *GetTypeName() override
{
LIMITED_METHOD_CONTRACT;
return "Trace";
}
void FastSerialize(FastSerializer *pSerializer) override
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_PREEMPTIVE;
PRECONDITION(pSerializer != NULL);
}
CONTRACTL_END;
pSerializer->WriteBuffer((BYTE *)&m_fileOpenSystemTime, sizeof(m_fileOpenSystemTime));
pSerializer->WriteBuffer((BYTE *)&m_fileOpenTimeStamp, sizeof(m_fileOpenTimeStamp));
pSerializer->WriteBuffer((BYTE *)&m_timeStampFrequency, sizeof(m_timeStampFrequency));
// the beginning of V3
pSerializer->WriteBuffer((BYTE *)&m_pointerSize, sizeof(m_pointerSize));
pSerializer->WriteBuffer((BYTE *)&m_currentProcessId, sizeof(m_currentProcessId));
pSerializer->WriteBuffer((BYTE *)&m_numberOfProcessors, sizeof(m_numberOfProcessors));
pSerializer->WriteBuffer((BYTE *)&m_samplingRateInNs, sizeof(m_samplingRateInNs));
}
private:
void WriteEnd();
unsigned int GenerateMetadataId();
unsigned int GetMetadataId(EventPipeEvent &event);
void SaveMetadataId(EventPipeEvent &event, unsigned int metadataId);
void WriteToBlock(EventPipeEventInstance &instance, unsigned int metadataId);
// The object responsible for serialization.
FastSerializer *m_pSerializer;
EventPipeBlock *m_pBlock;
// The system time when the file was opened.
SYSTEMTIME m_fileOpenSystemTime;
// The timestamp when the file was opened. Used for calculating file-relative timestamps.
LARGE_INTEGER m_fileOpenTimeStamp;
// The frequency of the timestamps used for this file.
LARGE_INTEGER m_timeStampFrequency;
unsigned int m_pointerSize;
unsigned int m_currentProcessId;
unsigned int m_numberOfProcessors;
unsigned int m_samplingRateInNs;
// The serialization which is responsible for making sure only a single event
// or block of events gets written to the file at once.
SpinLock m_serializationLock;
// Hashtable of metadata labels.
MapSHashWithRemove<EventPipeEvent *, unsigned int> *m_pMetadataIds;
Volatile<LONG> m_metadataIdCounter;
};
#endif // FEATURE_PERFTRACING
#endif // __EVENTPIPE_FILE_H__
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