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// 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_CONFIGURATION_H__
#define __EVENTPIPE_CONFIGURATION_H__
#ifdef FEATURE_PERFTRACING
#include "eventpipe.h"
#include "slist.h"
class EventPipeSessionProvider;
class EventPipeEvent;
class EventPipeEventInstance;
class EventPipeProvider;
class EventPipeSession;
class EventPipeConfiguration
{
public:
// Perform initialization that cannot be performed in the constructor.
void Initialize();
// Perform cleanup that cannot be performed in the destructor.
void Shutdown();
// Create a new provider.
EventPipeProvider *CreateProvider(const SString &providerName, EventPipeCallback pCallbackFunction, void *pCallbackData, EventPipeProviderCallbackDataQueue *pEventPipeProviderCallbackDataQueue);
// Delete a provider.
void DeleteProvider(EventPipeProvider *pProvider);
// Register a provider.
bool RegisterProvider(EventPipeProvider &provider, EventPipeProviderCallbackDataQueue *pEventPipeProviderCallbackDataQueue);
// Unregister a provider.
bool UnregisterProvider(EventPipeProvider &provider);
// Get the provider with the specified provider ID if it exists.
EventPipeProvider *GetProvider(const SString &providerID);
// Enable a session in the event pipe.
void Enable(
EventPipeSession &session,
EventPipeProviderCallbackDataQueue *pEventPipeProviderCallbackDataQueue);
// Disable a session in the event pipe.
void Disable(
const EventPipeSession &session,
EventPipeProviderCallbackDataQueue *pEventPipeProviderCallbackDataQueue);
// Get the event used to write metadata to the event stream.
EventPipeEventInstance *BuildEventMetadataEvent(EventPipeEventInstance &sourceInstance, unsigned int metdataId);
// Delete deferred providers.
void DeleteDeferredProviders();
// Compute the enabled bit mask, the ith bit is 1 iff an event with the given (provider, keywords, eventLevel) is enabled for the ith session.
INT64 ComputeEventEnabledMask(const EventPipeProvider& provider, INT64 keywords, EventPipeEventLevel eventLevel) const;
private:
// Get the provider without taking the lock.
EventPipeProvider *GetProviderNoLock(const SString &providerID);
// Get the enabled provider.
EventPipeSessionProvider *GetSessionProvider(const EventPipeSession &session, const EventPipeProvider *pProvider) const;
// Compute the keyword union and maximum level for a provider across all sessions
void ComputeKeywordAndLevel(const EventPipeProvider& provider, INT64& keywordsForAllSessions, EventPipeEventLevel& levelForAllSessions) const;
// The list of event pipe providers.
SList<SListElem<EventPipeProvider *>> *m_pProviderList = nullptr;
// The provider used to write configuration events to the event stream.
EventPipeProvider *m_pConfigProvider = nullptr;
// The event used to write event information to the event stream.
EventPipeEvent *m_pMetadataEvent = nullptr;
// The provider name for the configuration event pipe provider.
// This provider is used to emit configuration events.
const static WCHAR *s_configurationProviderName;
};
#endif // FEATURE_PERFTRACING
#endif // __EVENTPIPE_CONFIGURATION_H__
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