ExceptionTrace.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / System.Runtime.DurableInstancing / System / Runtime / ExceptionTrace.cs / 1305376 / ExceptionTrace.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.Runtime 
{
    using System; 
    using System.Diagnostics; 
    using System.Globalization;
    using System.Runtime.CompilerServices; 
    using System.Runtime.Interop;
    using System.Runtime.Versioning;
    using System.Security;
    using System.Runtime.Diagnostics; 

    class ExceptionTrace 
    { 
        const ushort FailFastEventLogCategory = 6;
        string eventSourceName; 

        public ExceptionTrace(string eventSourceName)
        {
            this.eventSourceName = eventSourceName; 
        }
 
        public void AsInformation(Exception exception) 
        {
            //Traces an informational trace message 
            TraceCore.HandledException(Fx.Trace, exception);
        }

        public void AsWarning(Exception exception) 
        {
            //Traces a warning trace message 
            TraceCore.HandledExceptionWarning(Fx.Trace, exception); 
        }
 
        public Exception AsError(Exception exception)
        {
            return TraceException(exception);
        } 

        public Exception AsError(Exception exception, string eventSource) 
        { 
            return TraceException(exception, eventSource);
        } 

        public ArgumentException Argument(string paramName, string message)
        {
            return TraceException(new ArgumentException(message, paramName)); 
        }
 
        public ArgumentNullException ArgumentNull(string paramName) 
        {
            return TraceException(new ArgumentNullException(paramName)); 
        }

        public ArgumentNullException ArgumentNull(string paramName, string message)
        { 
            return TraceException(new ArgumentNullException(paramName, message));
        } 
 
        public ArgumentException ArgumentNullOrEmpty(string paramName)
        { 
            return this.Argument(paramName, SRCore.ArgumentNullOrEmpty(paramName));
        }

        public ArgumentOutOfRangeException ArgumentOutOfRange(string paramName, object actualValue, string message) 
        {
            return TraceException(new ArgumentOutOfRangeException(paramName, actualValue, message)); 
        } 

        // When throwing ObjectDisposedException, it is highly recommended that you use this ctor 
        // [C#]
        // public ObjectDisposedException(string objectName, string message);
        // And provide null for objectName but meaningful and relevant message for message.
        // It is recommended because end user really does not care or can do anything on the disposed object, commonly an internal or private object. 
        public ObjectDisposedException ObjectDisposed(string message)
        { 
            // pass in null, not disposedObject.GetType().FullName as per the above guideline 
            return TraceException(new ObjectDisposedException(null, message));
        } 

        public void TraceUnhandledException(Exception exception)
        {
            TraceCore.UnhandledException(Fx.Trace, exception); 
        }
 
        TException TraceException(TException exception) 
            where TException : Exception
        { 
            return TraceException(exception, this.eventSourceName);
        }

 	    [ResourceConsumption(ResourceScope.Process)] 
        [Fx.Tag.SecurityNote(Critical = "Calls 'System.Runtime.Interop.UnsafeNativeMethods.IsDebuggerPresent()' which is a P/Invoke method",
            Safe = "Does not leak any resource, needed for debugging")] 
        [SecuritySafeCritical] 
        TException TraceException(TException exception, string eventSource)
            where TException : Exception 
        {
            TraceCore.ThrowingException(Fx.Trace, eventSource, exception);

            BreakOnException(exception); 

            return exception; 
        } 

        [Fx.Tag.SecurityNote(Critical = "Calls into critical method UnsafeNativeMethods.IsDebuggerPresent and UnsafeNativeMethods.DebugBreak", 
        Safe = "Safe because it's a no-op in retail builds.")]
        [SecuritySafeCritical]
        void BreakOnException(Exception exception)
        { 
#if DEBUG
            if (Fx.BreakOnExceptionTypes != null) 
            { 
                foreach (Type breakType in Fx.BreakOnExceptionTypes)
                { 
                    if (breakType.IsAssignableFrom(exception.GetType()))
                    {
                        // This is intended to "crash" the process so that a debugger can be attached.  If a managed
                        // debugger is already attached, it will already be able to hook these exceptions.  We don't 
                        // want to simulate an unmanaged crash (DebugBreak) in that case.
                        if (!Debugger.IsAttached && !UnsafeNativeMethods.IsDebuggerPresent()) 
                        { 
                            UnsafeNativeMethods.DebugBreak();
                        } 
                    }
                }
            }
#endif 
        }
 
        [MethodImpl(MethodImplOptions.NoInlining)] 
        internal void TraceFailFast(string message)
        { 
            EventLogger logger = null;
#pragma warning disable 618
            logger = new EventLogger(this.eventSourceName, Fx.Trace);
#pragma warning restore 618 
            TraceFailFast(message, logger);
        } 
 
        // Generate an event Log entry for failfast purposes
        // To force a Watson on a dev machine, do the following: 
        // 1. Set \HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting ForceQueueMode = 0
        // 2. In the command environment, set COMPLUS_DbgJitDebugLaunchSetting=0
        [MethodImpl(MethodImplOptions.NoInlining)]
        internal void TraceFailFast(string message, EventLogger logger) 
        {
            if (logger != null) 
            { 
                try
                { 
                    string stackTrace = null;
                    try
                    {
                        stackTrace = new StackTrace().ToString(); 
                    }
                    catch (Exception exception) 
                    { 
                        stackTrace = exception.Message;
                        if (Fx.IsFatal(exception)) 
                        {
                            throw;
                        }
                    } 
                    finally
                    { 
                        logger.LogEvent(TraceEventType.Critical, 
                            FailFastEventLogCategory,
                            (uint)EventLogEventId.FailFast, 
                            message,
                            stackTrace);
                    }
                } 
                catch (Exception ex)
                { 
                    logger.LogEvent(TraceEventType.Critical, 
                        FailFastEventLogCategory,
                        (uint)EventLogEventId.FailFastException, 
                        ex.ToString());
                    if (Fx.IsFatal(ex))
                    {
                        throw; 
                    }
                } 
            } 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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ExceptionTrace.cs source code in C# .NET

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