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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
//
// CDSCollectionETWBCLProvider.cs
//
// <OWNER>Microsoft</OWNER>
//
// A helper class for firing ETW events related to the Coordination Data Structure
// collection types. This provider is used by CDS collections in both mscorlib.dll
// and System.dll. The purpose of sharing the provider class is to be able to enable
// ETW tracing on all CDS collection with a single ETW provider GUID, and to minimize
// the number of providers in use.
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
using System;
using System.Collections.Generic;
using System.Text;
namespace System.Collections.Concurrent
{
#if !FEATURE_PAL // PAL doesn't support eventing
using System.Diagnostics.Tracing;
/// <summary>Provides an event source for tracing CDS collection information.</summary>
[System.Runtime.CompilerServices.FriendAccessAllowed]
[EventSource(
Name = "System.Collections.Concurrent.ConcurrentCollectionsEventSource",
Guid = "35167F8E-49B2-4b96-AB86-435B59336B5E",
LocalizationResources = "mscorlib")]
internal sealed class CDSCollectionETWBCLProvider : EventSource
{
/// <summary>
/// Defines the singleton instance for the collection ETW provider.
/// The collection provider GUID is {35167F8E-49B2-4b96-AB86-435B59336B5E}.
/// </summary>
public static CDSCollectionETWBCLProvider Log = new CDSCollectionETWBCLProvider();
/// <summary>Prevent external instantiation. All logging should go through the Log instance.</summary>
private CDSCollectionETWBCLProvider() { }
/// <summary>Enabled for all keywords.</summary>
private const EventKeywords ALL_KEYWORDS = (EventKeywords)(-1);
//-----------------------------------------------------------------------------------
//
// CDS Collection Event IDs (must be unique)
//
private const int CONCURRENTSTACK_FASTPUSHFAILED_ID = 1;
private const int CONCURRENTSTACK_FASTPOPFAILED_ID = 2;
private const int CONCURRENTDICTIONARY_ACQUIRINGALLLOCKS_ID = 3;
private const int CONCURRENTBAG_TRYTAKESTEALS_ID = 4;
private const int CONCURRENTBAG_TRYPEEKSTEALS_ID = 5;
/////////////////////////////////////////////////////////////////////////////////////
//
// ConcurrentStack Events
//
[Event(CONCURRENTSTACK_FASTPUSHFAILED_ID, Level = EventLevel.Warning)]
public void ConcurrentStack_FastPushFailed(int spinCount)
{
if (IsEnabled(EventLevel.Warning, ALL_KEYWORDS))
{
WriteEvent(CONCURRENTSTACK_FASTPUSHFAILED_ID, spinCount);
}
}
[Event(CONCURRENTSTACK_FASTPOPFAILED_ID, Level = EventLevel.Warning)]
public void ConcurrentStack_FastPopFailed(int spinCount)
{
if (IsEnabled(EventLevel.Warning, ALL_KEYWORDS))
{
WriteEvent(CONCURRENTSTACK_FASTPOPFAILED_ID, spinCount);
}
}
/////////////////////////////////////////////////////////////////////////////////////
//
// ConcurrentDictionary Events
//
[Event(CONCURRENTDICTIONARY_ACQUIRINGALLLOCKS_ID, Level = EventLevel.Warning)]
public void ConcurrentDictionary_AcquiringAllLocks(int numOfBuckets)
{
if (IsEnabled(EventLevel.Warning, ALL_KEYWORDS))
{
WriteEvent(CONCURRENTDICTIONARY_ACQUIRINGALLLOCKS_ID, numOfBuckets);
}
}
//
// Events below this point are used by the CDS types in System.DLL
//
/////////////////////////////////////////////////////////////////////////////////////
//
// ConcurrentBag Events
//
[Event(CONCURRENTBAG_TRYTAKESTEALS_ID, Level = EventLevel.Verbose)]
public void ConcurrentBag_TryTakeSteals()
{
if (IsEnabled(EventLevel.Verbose, ALL_KEYWORDS))
{
WriteEvent(CONCURRENTBAG_TRYTAKESTEALS_ID);
}
}
[Event(CONCURRENTBAG_TRYPEEKSTEALS_ID, Level = EventLevel.Verbose)]
public void ConcurrentBag_TryPeekSteals()
{
if (IsEnabled(EventLevel.Verbose, ALL_KEYWORDS))
{
WriteEvent(CONCURRENTBAG_TRYPEEKSTEALS_ID);
}
}
}
#endif // !FEATURE_PAL
}
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