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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_EVENT_H__
#define __EVENTPIPE_EVENT_H__
#ifdef FEATURE_PERFTRACING
#include "eventpipeprovider.h"
class EventPipeEvent
{
// Declare friends.
friend class EventPipeProvider;
private:
// The provider that contains the event.
EventPipeProvider *m_pProvider;
// Bit vector containing the keywords that enable the event.
INT64 m_keywords;
// The ID (within the provider) of the event.
unsigned int m_eventID;
// The version of the event.
unsigned int m_eventVersion;
// The verbosity of the event.
EventPipeEventLevel m_level;
// True if a call stack should be captured when writing the event.
bool m_needStack;
// True if the event is current enabled.
Volatile<bool> m_enabled;
// Metadata
BYTE *m_pMetadata;
// Metadata length;
unsigned int m_metadataLength;
// Refreshes the runtime state for this event.
// Called by EventPipeProvider when the provider configuration changes.
void RefreshState();
// Only EventPipeProvider can create events.
// The provider is responsible for allocating and freeing events.
EventPipeEvent(EventPipeProvider &provider, INT64 keywords, unsigned int eventID, unsigned int eventVersion, EventPipeEventLevel level, bool needStack, BYTE *pMetadata = NULL, unsigned int metadataLength = 0);
public:
~EventPipeEvent();
// Get the provider associated with this event.
EventPipeProvider* GetProvider() const;
// Get the keywords that enable the event.
INT64 GetKeywords() const;
// Get the ID (within the provider) of the event.
unsigned int GetEventID() const;
// Get the version of the event.
unsigned int GetEventVersion() const;
// Get the verbosity of the event.
EventPipeEventLevel GetLevel() const;
// True if a call stack should be captured when writing the event.
bool NeedStack() const;
// True if the event is currently enabled.
bool IsEnabled() const;
BYTE *GetMetadata() const;
unsigned int GetMetadataLength() const;
private:
// used when Metadata is not provided
BYTE *BuildMinimumMetadata();
unsigned int GetMinimumMetadataLength();
};
#endif // FEATURE_PERFTRACING
#endif // __EVENTPIPE_EVENT_H__
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