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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 "eventpipeeventinstance.h"
#include "eventpipejsonfile.h"
#include "fastserializer.h"
#include "sampleprofiler.h"
#ifdef FEATURE_PERFTRACING
EventPipeEventInstance::EventPipeEventInstance(
EventPipeEvent &event,
DWORD threadID,
BYTE *pData,
unsigned int length,
LPCGUID pActivityId,
LPCGUID pRelatedActivityId)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
#ifdef _DEBUG
m_debugEventStart = 0xDEADBEEF;
m_debugEventEnd = 0xCAFEBABE;
#endif // _DEBUG
m_pEvent = &event;
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);
if(event.NeedStack())
{
EventPipe::WalkManagedStackForCurrentThread(m_stackContents);
}
#ifdef _DEBUG
EnsureConsistency();
#endif // _DEBUG
}
StackContents* EventPipeEventInstance::GetStack()
{
LIMITED_METHOD_CONTRACT;
return &m_stackContents;
}
EventPipeEvent* EventPipeEventInstance::GetEvent() const
{
LIMITED_METHOD_CONTRACT;
return m_pEvent;
}
LARGE_INTEGER EventPipeEventInstance::GetTimeStamp() const
{
LIMITED_METHOD_CONTRACT;
return m_timeStamp;
}
BYTE* EventPipeEventInstance::GetData() const
{
LIMITED_METHOD_CONTRACT;
return m_pData;
}
unsigned int EventPipeEventInstance::GetLength() const
{
LIMITED_METHOD_CONTRACT;
return m_dataLength;
}
void EventPipeEventInstance::FastSerialize(FastSerializer *pSerializer, StreamLabel metadataLabel)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
#ifdef EVENTPIPE_EVENT_MARKER
// Useful for diagnosing serialization bugs.
const unsigned int value = 0xDEADBEEF;
pSerializer->WriteBuffer((BYTE*)&value, sizeof(value));
#endif
// Calculate the size of the total payload so that it can be written to the file.
unsigned int payloadLength =
sizeof(metadataLabel) +
sizeof(m_threadID) + // 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
// Write the size of the event to the file.
pSerializer->WriteBuffer((BYTE*)&payloadLength, sizeof(payloadLength));
// Write the metadata label.
pSerializer->WriteBuffer((BYTE*)&metadataLabel, sizeof(metadataLabel));
// Write the thread ID.
pSerializer->WriteBuffer((BYTE*)&m_threadID, sizeof(m_threadID));
// Write the timestamp.
pSerializer->WriteBuffer((BYTE*)&m_timeStamp, sizeof(m_timeStamp));
// Write the activity id.
pSerializer->WriteBuffer((BYTE*)&m_activityId, sizeof(m_activityId));
// Write the related activity id.
pSerializer->WriteBuffer((BYTE*)&m_relatedActivityId, sizeof(m_relatedActivityId));
// Write the data payload size.
pSerializer->WriteBuffer((BYTE*)&m_dataLength, sizeof(m_dataLength));
// Write the event data payload.
if(m_dataLength > 0)
{
pSerializer->WriteBuffer(m_pData, m_dataLength);
}
// Write the size of the stack in bytes.
unsigned int stackSize = m_stackContents.GetSize();
pSerializer->WriteBuffer((BYTE*)&stackSize, sizeof(stackSize));
// Write the stack if present.
if(stackSize > 0)
{
pSerializer->WriteBuffer(m_stackContents.GetPointer(), stackSize);
}
}
#ifdef _DEBUG
void EventPipeEventInstance::SerializeToJsonFile(EventPipeJsonFile *pFile)
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
if(pFile == NULL)
{
return;
}
EX_TRY
{
const unsigned int guidSize = 39;
WCHAR wszProviderID[guidSize];
if(!StringFromGUID2(m_pEvent->GetProvider()->GetProviderID(), wszProviderID, guidSize))
{
wszProviderID[0] = '\0';
}
// Strip off the {}.
StackScratchBuffer scratch;
SString guidStr(&wszProviderID[1], guidSize-3);
SString message;
message.Printf("Provider=%s/EventID=%d/Version=%d", guidStr.GetANSI(scratch), m_pEvent->GetEventID(), m_pEvent->GetEventVersion());
pFile->WriteEvent(m_timeStamp, 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
SampleProfilerEventInstance::SampleProfilerEventInstance(EventPipeEvent &event, Thread *pThread, BYTE *pData, unsigned int length)
:EventPipeEventInstance(event, pThread->GetOSThreadId(), pData, length, NULL /* pActivityId */, NULL /* pRelatedActivityId */)
{
LIMITED_METHOD_CONTRACT;
}
#endif // FEATURE_PERFTRACING
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