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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_SESSION_H__
#define __EVENTPIPE_SESSION_H__
#ifdef FEATURE_PERFTRACING
enum class EventPipeEventLevel;
struct EventPipeProviderConfiguration;
class EventPipeSessionProviderList;
class EventPipeSessionProvider;
class EventPipeSession
{
private:
// The set of configurations for each provider in the session.
EventPipeSessionProviderList *m_pProviderList;
// The configured size of the circular buffer.
size_t m_circularBufferSizeInBytes;
// True if rundown is enabled.
Volatile<bool> m_rundownEnabled;
public:
// TODO: This needs to be exposed via EventPipe::CreateSession() and EventPipe::DeleteSession() to avoid memory ownership issues.
EventPipeSession(
unsigned int circularBufferSizeInMB,
EventPipeProviderConfiguration *pProviders,
unsigned int numProviders);
~EventPipeSession();
// Determine if the session is valid or not. Invalid sessions can be detected before they are enabled.
bool IsValid() const;
// Get the configured size of the circular buffer.
size_t GetCircularBufferSize() const
{
LIMITED_METHOD_CONTRACT;
return m_circularBufferSizeInBytes;
}
// Determine if rundown is enabled.
bool RundownEnabled() const
{
LIMITED_METHOD_CONTRACT;
return m_rundownEnabled;
}
// Set the rundown enabled flag.
void SetRundownEnabled(bool value)
{
LIMITED_METHOD_CONTRACT;
m_rundownEnabled = value;
}
// Enable all events.
// This is used for testing and is controlled via COMPLUS_EnableEventPipe.
void EnableAllEvents();
// Add a new provider to the session.
void AddSessionProvider(EventPipeSessionProvider *pProvider);
// Get the session provider for the specified provider if present.
EventPipeSessionProvider* GetSessionProvider(EventPipeProvider *pProvider);
};
class EventPipeSessionProviderList
{
private:
// The list of providers.
SList<SListElem<EventPipeSessionProvider*>> *m_pProviders;
// A catch-all provider used when tracing is enabled at start-up
// under (COMPlus_PerformanceTracing & 1) == 1.
EventPipeSessionProvider *m_pCatchAllProvider;
public:
// Create a new list based on the input.
EventPipeSessionProviderList(EventPipeProviderConfiguration *pConfigs, unsigned int numConfigs);
~EventPipeSessionProviderList();
// Enable all events.
// This is used for testing and is controlled via COMPLUS_EnableEventPipe.
void EnableAllEvents();
// Add a new session provider to the list.
void AddSessionProvider(EventPipeSessionProvider *pProvider);
// Get the session provider for the specified provider.
// Return NULL if one doesn't exist.
EventPipeSessionProvider* GetSessionProvider(EventPipeProvider *pProvider);
// Returns true if the list is empty.
bool IsEmpty() const;
};
class EventPipeSessionProvider
{
private:
// The provider name.
WCHAR *m_pProviderName;
// The enabled keywords.
UINT64 m_keywords;
// The loging level.
EventPipeEventLevel m_loggingLevel;
public:
EventPipeSessionProvider(
LPCWSTR providerName,
UINT64 keywords,
EventPipeEventLevel loggingLevel);
~EventPipeSessionProvider();
LPCWSTR GetProviderName() const;
UINT64 GetKeywords() const;
EventPipeEventLevel GetLevel() const;
};
#endif // FEATURE_PERFTRACING
#endif // __EVENTPIPE_SESSION_H__
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