Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Threading / Tasks / TPLETWProvider.cs / 1305376 / TPLETWProvider.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ // // TplEtwProvider.cs // //[....] // // A helper class for firing ETW events related to the Task Parallel Library APIs. // // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- using System; using System.Collections.Generic; using System.Text; namespace System.Threading { #if !FEATURE_PAL // PAL doesn't support eventing using System.Diagnostics.Eventing; sealed internal class TplEtwProvider : EventProviderBase { // // Defines the singleton instance for the TPL ETW provider // // The TPL Event provider GUID is {2e5dba47-a3d2-4d16-8ee0-6671ffdcd7b5} // public static TplEtwProvider Log = new TplEtwProvider(); private TplEtwProvider() : base(new Guid(0x2e5dba47, 0xa3d2, 0x4d16, 0x8e, 0xe0, 0x66, 0x71, 0xff, 0xdc, 0xd7, 0xb5)) { } ///////////////////////////////////////////////////////////////////////////////////// // // Parallel API Events // public enum ForkJoinOperationType { ParallelInvoke=1, ParallelFor, ParallelForEach } // // The ParallelLoopStarted event denotes the entry point for a Parallel.For or Parallel.ForEach loop // [Event(1, Level = EventLevel.LogAlways)] public void ParallelLoopBegin(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int ForkJoinContextID, ForkJoinOperationType OperationType, // PFX_FORKJOIN_COMMON_EVENT_HEADER long InclusiveFrom, long ExclusiveTo) { if (IsEnabled()) WriteEvent(1, OriginatingTaskSchedulerID, OriginatingTaskID, ForkJoinContextID, (int) OperationType, InclusiveFrom, ExclusiveTo); } // // The ParallelLoopEnd event denotes the end of a Parallel.For or Parallel.ForEach loop // [Event(2, Level = EventLevel.LogAlways)] public void ParallelLoopEnd(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int ForkJoinContextID, long TotalIterations) { if (IsEnabled()) WriteEvent(2, OriginatingTaskSchedulerID, OriginatingTaskID, ForkJoinContextID, TotalIterations); } // // The ParallelInvokeBegin event denotes the entry point for a Parallel.Invoke call // [Event(3, Level = EventLevel.LogAlways)] public void ParallelInvokeBegin(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int ForkJoinContextID, ForkJoinOperationType OperationType, // PFX_FORKJOIN_COMMON_EVENT_HEADER int ActionCount) { if (IsEnabled()) WriteEvent(3, OriginatingTaskSchedulerID, OriginatingTaskID, ForkJoinContextID, (int) OperationType, ActionCount); } // // The ParallelInvokeEnd event denotes the exit point for a Parallel.Invoke call // [Event(4, Level = EventLevel.LogAlways)] public void ParallelInvokeEnd(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int ForkJoinContextID) { if (IsEnabled()) WriteEvent(4, OriginatingTaskSchedulerID, OriginatingTaskID, ForkJoinContextID); } // // The ParallelFork event denotes the start of an individual task that's part of // a fork/join context. Before this event is fired, the start of the new fork/join context // will be marked with another event that declares a unique context ID. // [Event(5, Level = EventLevel.LogAlways)] public void ParallelFork(int OriginatingTaskManager, int OriginatingTaskID, int ForkJoinContextID) { if (IsEnabled()) WriteEvent(5, OriginatingTaskManager, OriginatingTaskID, ForkJoinContextID); } // // The ParallelJoin event denotes the end of an individual task that's part of // a fork/join context. This should match a previous ParallelFork event with a matching "OriginatingTaskID" // [Event(6, Level = EventLevel.LogAlways)] public void ParallelJoin(int OriginatingTaskSchedulerID, int OriginatingTaskID, int ForkJoinContextID) { if (IsEnabled()) WriteEvent(6, OriginatingTaskSchedulerID, OriginatingTaskID, ForkJoinContextID); } ///////////////////////////////////////////////////////////////////////////////////// // // Task Events // // These are all verbose events, so we need to call IsEnabled(EventLevel.Verbose, EventKeywords.None) call. // However since the IsEnabled(l,k) call is more expensive than IsEnabled(), // we only want to incur this cost when instrumentation is enabled. // So the Task codepaths that call these event functions will still do the check for IsEnabled() // // The TaskScheduled event is fired when a task is queued to the TaskManager // [Event(7, Level = EventLevel.Verbose)] public void TaskScheduled(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int TaskID, int CreatingTaskID, int TaskCreationOptions) { if (IsEnabled(EventLevel.Verbose, ((EventKeywords)(-1)) )) WriteEvent(7, OriginatingTaskSchedulerID, OriginatingTaskID, TaskID, CreatingTaskID, TaskCreationOptions); } // // The TaskStarted event is fired just before a task actually starts executing // [Event(8, Level = EventLevel.Verbose)] public void TaskStarted(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int TaskID) { if (IsEnabled(EventLevel.Verbose, ((EventKeywords)(-1)) )) WriteEvent(8, OriginatingTaskSchedulerID, OriginatingTaskID, TaskID); } // // The TaskCompleted event is fired right after a task finished executing // [Event(9, Level = EventLevel.Verbose)] public void TaskCompleted(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int TaskID, bool IsExceptional) { if (IsEnabled(EventLevel.Verbose, ((EventKeywords)(-1)) )) WriteEvent(9, OriginatingTaskSchedulerID, OriginatingTaskID, TaskID, IsExceptional); } // // The TaskWaitBegin event is fired when starting to wait for a taks's completion explicitly or implicitly. // [Event(10, Level = EventLevel.Verbose)] public void TaskWaitBegin(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int TaskID) { if (IsEnabled(EventLevel.Verbose, ((EventKeywords)(-1)) )) WriteEvent(10, OriginatingTaskSchedulerID, OriginatingTaskID, TaskID); } // // The TaskWaitEnd event is fired when the wait for a tasks completion returns // [Event(11, Level = EventLevel.Verbose)] public void TaskWaitEnd(int OriginatingTaskSchedulerID, int OriginatingTaskID, // PFX_COMMON_EVENT_HEADER int TaskID) { if (IsEnabled(EventLevel.Verbose, ((EventKeywords)(-1)) )) WriteEvent(11, OriginatingTaskSchedulerID, OriginatingTaskID, TaskID); } } #endif // !FEATURE_PAL } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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