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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.
#include "common.h"
#include "eventpipeconfiguration.h"
#include "eventpipeeventinstance.h"
#include "eventpipejsonfile.h"
#include "fastserializer.h"
#include "sampleprofiler.h"
#ifdef FEATURE_PERFTRACING
EventPipeEventInstance::EventPipeEventInstance(
EventPipeEvent &event,
unsigned int procNumber,
ULONGLONG threadId,
BYTE *pData,
unsigned int length,
LPCGUID pActivityId,
LPCGUID pRelatedActivityId)
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
#ifdef _DEBUG
m_debugEventStart = 0xDEADBEEF;
m_debugEventEnd = 0xCAFEBABE;
#endif // _DEBUG
m_pEvent = &event;
m_procNumber = procNumber;
m_threadId = threadId;
if (pActivityId != NULL)
{
m_activityId = *pActivityId;
}
else
{
m_activityId = {0};
}
if (pRelatedActivityId != NULL)
{
m_relatedActivityId = *pRelatedActivityId;
}
else
{
m_relatedActivityId = {0};
}
m_pData = pData;
m_dataLength = length;
QueryPerformanceCounter(&m_timeStamp);
_ASSERTE(m_timeStamp.QuadPart > 0);
#ifdef _DEBUG
EnsureConsistency();
#endif // _DEBUG
}
void EventPipeEventInstance::EnsureStack(const EventPipeSession &session)
{
if (m_pEvent->NeedStack() && !session.RundownEnabled())
{
EventPipe::WalkManagedStackForCurrentThread(m_stackContents);
}
}
unsigned int EventPipeEventInstance::GetAlignedTotalSize(EventPipeSerializationFormat format) const
{
CONTRACT(unsigned int)
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
POSTCONDITION(RETVAL % ALIGNMENT_SIZE == 0);
}
CONTRACT_END;
// Calculate the size of the total payload so that it can be written to the file.
unsigned int payloadLength = 0;
if (format == EventPipeSerializationFormat::NetPerfV3)
{
payloadLength =
sizeof(m_metadataId) + // Metadata ID
sizeof(DWORD) + // Thread ID
sizeof(m_timeStamp) + // TimeStamp
sizeof(m_activityId) + // Activity ID
sizeof(m_relatedActivityId) + // Related Activity ID
sizeof(m_dataLength) + // Data payload length
m_dataLength + // Event payload data
sizeof(unsigned int) + // Prepended stack payload size in bytes
m_stackContents.GetSize(); // Stack payload size
}
else if (format == EventPipeSerializationFormat::NetTraceV4)
{
payloadLength =
sizeof(m_metadataId) + // Metadata ID
sizeof(unsigned int) + // Sequence number (implied by the buffer containing the event instance)
sizeof(m_threadId) + // Thread ID
sizeof(ULONGLONG) + // Capture Thread ID (implied by the buffer containing the event instance)
sizeof(m_procNumber) + // ProcNumber
sizeof(unsigned int) + // Stack intern table id
sizeof(m_timeStamp) + // TimeStamp
sizeof(m_activityId) + // Activity ID
sizeof(m_relatedActivityId) + // Related Activity ID
sizeof(m_dataLength) + // Data payload length
m_dataLength; // Event payload data
}
else
{
_ASSERTE(!"Unrecognized format");
}
// round up to ALIGNMENT_SIZE bytes
if (payloadLength % ALIGNMENT_SIZE != 0)
{
payloadLength += ALIGNMENT_SIZE - (payloadLength % ALIGNMENT_SIZE);
}
RETURN payloadLength;
}
#ifdef _DEBUG
void EventPipeEventInstance::SerializeToJsonFile(EventPipeJsonFile *pFile)
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
if(pFile == NULL)
{
return;
}
EX_TRY
{
StackScratchBuffer scratch;
SString providerName = m_pEvent->GetProvider()->GetProviderName();
SString message;
message.Printf("Provider=%s/EventID=%d/Version=%d", providerName.GetANSI(scratch), m_pEvent->GetEventID(), m_pEvent->GetEventVersion());
pFile->WriteEvent(m_timeStamp, (DWORD)m_threadId, message, m_stackContents);
}
EX_CATCH{} EX_END_CATCH(SwallowAllExceptions);
}
#endif
void EventPipeEventInstance::SetTimeStamp(LARGE_INTEGER timeStamp)
{
LIMITED_METHOD_CONTRACT;
m_timeStamp = timeStamp;
}
#ifdef _DEBUG
bool EventPipeEventInstance::EnsureConsistency()
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
// Validate event start.
_ASSERTE(m_debugEventStart == 0xDEADBEEF);
// Validate event end.
_ASSERTE(m_debugEventEnd == 0xCAFEBABE);
return true;
}
#endif // _DEBUG
EventPipeSequencePoint::EventPipeSequencePoint()
{
LIMITED_METHOD_CONTRACT;
TimeStamp.QuadPart = 0;
}
EventPipeSequencePoint::~EventPipeSequencePoint()
{
// Each entry in the map owns a ref-count on the corresponding thread
for (ThreadSequenceNumberMap::Iterator pCur = ThreadSequenceNumbers.Begin();
pCur != ThreadSequenceNumbers.End();
pCur++)
{
pCur->Key()->GetThread()->Release();
}
}
#endif // FEATURE_PERFTRACING
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