Trace.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Trace.cs / 1305376 / Trace.cs
                        

                        
                            namespace System.Workflow.Runtime 
{
    using System;
    using System.Diagnostics;
 
    /// 
    /// Holds trace sources for the runtime and associated modules 
    ///  
    internal static class WorkflowTrace
    { 
        static TraceSource runtime;
        static TraceSource tracking;
        static TraceSource host;
 
        /// 
        /// Tracesource for the core runtime 
        ///  
        internal static TraceSource Runtime
        { 
            get { return runtime; }
        }

        ///  
        /// Tracesource for tracking
        ///  
        internal static TraceSource Tracking 
        {
            get { return tracking; } 
        }

        /// 
        /// Tracesource for the host 
        /// 
        internal static TraceSource Host 
        { 
            get { return host; }
        } 

        /// 
        /// Statically set up trace sources
        /// 
        /// To enable logging to a file, add lines like the following to your app config file.
        /* 
             
                
                     
                
            
        */
        /// To enable tracing to default trace listeners, add lines like the following 
        /*
             
                 
                    
                 
            
        */
        /// 
        static WorkflowTrace() 
        {
            runtime = new TraceSource("System.Workflow.Runtime"); 
            runtime.Switch = new SourceSwitch("System.Workflow.Runtime", SourceLevels.Off.ToString()); 
            // we'll use ID of 1 for the scheduler, 0 for rest of runtime
 
            tracking = new TraceSource("System.Workflow.Runtime.Tracking");
            tracking.Switch = new SourceSwitch("System.Workflow.Runtime.Tracking", SourceLevels.Off.ToString());

            host = new TraceSource("System.Workflow.Runtime.Hosting"); 
            host.Switch = new SourceSwitch("System.Workflow.Runtime.Hosting", SourceLevels.Off.ToString());
 
 

            BooleanSwitch logToFile = new BooleanSwitch("System.Workflow LogToFile", "Log traces to file"); 
            if (logToFile.Enabled)
            {
                TextWriterTraceListener fileLog = new TextWriterTraceListener("WorkflowTrace.log");
                // add to global Listeners list 
                Trace.Listeners.Add(fileLog);
                // don't add to tracking (which probably has its own log) 
                runtime.Listeners.Add(fileLog); 
                host.Listeners.Add(fileLog);
            } 

            BooleanSwitch traceToDefault = new BooleanSwitch("System.Workflow LogToTraceListeners", "Trace to listeners in Trace.Listeners", "0");
            if (traceToDefault.Enabled)
            { 
                foreach (TraceListener listener in Trace.Listeners)
                { 
                    if (!(listener is DefaultTraceListener)) 
                    {
                        runtime.Listeners.Add(listener); 
                        tracking.Listeners.Add(listener);
                        host.Listeners.Add(listener);
                    }
                } 
            }
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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