94 lines
2.8 KiB
C#
94 lines
2.8 KiB
C#
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// <copyright>
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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namespace System.Runtime.Diagnostics
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{
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using System;
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using System.Diagnostics;
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.CompilerServices;
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using System.Runtime.Interop;
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using System.Security;
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internal class EventTraceActivity
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{
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// This field is public because it needs to be passed by reference for P/Invoke
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public Guid ActivityId;
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static EventTraceActivity empty;
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public EventTraceActivity(bool setOnThread = false)
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: this(Guid.NewGuid(), setOnThread)
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{
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}
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public EventTraceActivity(Guid guid, bool setOnThread = false)
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{
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this.ActivityId = guid;
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if (setOnThread)
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{
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SetActivityIdOnThread();
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}
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}
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public static EventTraceActivity Empty
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{
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get
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{
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if (empty == null)
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{
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empty = new EventTraceActivity(Guid.Empty);
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}
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return empty;
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}
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}
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public static string Name
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{
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get { return "E2EActivity"; }
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}
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[Fx.Tag.SecurityNote(Critical = "Critical because the CorrelationManager property has a link demand on UnmanagedCode.",
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Safe = "We do not leak security data.")]
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[SecuritySafeCritical]
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public static EventTraceActivity GetFromThreadOrCreate(bool clearIdOnThread = false)
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{
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Guid guid = Trace.CorrelationManager.ActivityId;
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if (guid == Guid.Empty)
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{
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guid = Guid.NewGuid();
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}
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else if (clearIdOnThread)
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{
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// Reset the ActivityId on the thread to avoid using the same Id again
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Trace.CorrelationManager.ActivityId = Guid.Empty;
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}
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return new EventTraceActivity(guid);
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}
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[Fx.Tag.SecurityNote(Critical = "Critical because the CorrelationManager property has a link demand on UnmanagedCode.",
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Safe = "We do not leak security data.")]
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[SecuritySafeCritical]
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public static Guid GetActivityIdFromThread()
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{
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return Trace.CorrelationManager.ActivityId;
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}
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public void SetActivityId(Guid guid)
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{
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this.ActivityId = guid;
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}
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[Fx.Tag.SecurityNote(Critical = "Critical because the CorrelationManager property has a link demand on UnmanagedCode.",
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Safe = "We do not leak security data.")]
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[SecuritySafeCritical]
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void SetActivityIdOnThread()
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{
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Trace.CorrelationManager.ActivityId = this.ActivityId;
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}
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}
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}
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