TraceImpl.cs :  » 2.6.4-mono-.net-core » System.Diagnostics » System » Diagnostics » C# / CSharp Open Source

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C# / CSharp Open Source » 2.6.4 mono .net core » System.Diagnostics 
System.Diagnostics » System » Diagnostics » TraceImpl.cs
//
// System.Diagnostics.TraceImpl.cs
//
// Authors:
//   Jonathan Pryor (jonpryor@vt.edu)
//
// (C) 2002, 2005 Jonathan Pryor
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//


using System;
using System.Collections;
using System.Diagnostics;
using System.Configuration;
using System.Threading;

namespace System.Diagnostics{

  internal class TraceImplSettings {
    public const string Key = ".__TraceInfoSettingsKey__.";

    public bool AutoFlush;
    public int IndentLevel, IndentSize = 4;
    public TraceListenerCollection Listeners = new TraceListenerCollection (false);

    public TraceImplSettings ()
    {
      Listeners.Add (new DefaultTraceListener (), this);
    }
  }

  internal class TraceImpl {

    private static object initLock = new object ();

    private static bool autoFlush;

#if TARGET_JVM
    static readonly LocalDataStoreSlot _indentLevelStore = System.Threading.Thread.AllocateDataSlot ();
    static readonly LocalDataStoreSlot _indentSizeStore = System.Threading.Thread.AllocateDataSlot ();

    private static int indentLevel {
      get {
        object o = System.Threading.Thread.GetData (_indentLevelStore);
        if (o == null)
          return 0;
        return (int) o;
      }
      set { System.Threading.Thread.SetData (_indentLevelStore, value); }
    }

    private static int indentSize {
      get {
        object o = System.Threading.Thread.GetData (_indentSizeStore);
        if (o == null)
          return 0;
        return (int) o;
      }
      set { System.Threading.Thread.SetData (_indentSizeStore, value); }
    }
#else
    [ThreadStatic]
    private static int indentLevel = 0;

    [ThreadStatic]
    private static int indentSize;
#endif

    private TraceImpl ()
    {
    }

    public static bool AutoFlush {
      get {
        InitOnce ();
        return autoFlush;
      }
      set {
        InitOnce ();
        autoFlush = value;
      }
    }

    public static int IndentLevel {
      get {
        InitOnce ();
        return indentLevel;
      }
      set {
        lock (ListenersSyncRoot) {
          indentLevel = value;

          foreach (TraceListener t in Listeners) {
            t.IndentLevel = indentLevel;
          }
        }
      }
    }

    public static int IndentSize {
      get {
        InitOnce ();
        return indentSize;
      }
      set {
        lock (ListenersSyncRoot) {
          indentSize = value;

          foreach (TraceListener t in Listeners) {
            t.IndentSize = indentSize;
          }
        }
      }
    }

    private static TraceListenerCollection listeners;

    public static TraceListenerCollection Listeners {
      get {
        InitOnce ();

        return listeners;
      }
    }

    private static object ListenersSyncRoot {
      get {
        return ((ICollection) Listeners).SyncRoot;
      }
    }

    static bool use_global_lock;
#if NET_2_0
    static CorrelationManager correlation_manager = new CorrelationManager ();

    public static CorrelationManager CorrelationManager {
      get {
        InitOnce ();
         return correlation_manager;
      }
    }
#endif

    [MonoLimitation ("the property exists but it does nothing.")]
    public static bool UseGlobalLock {
      get {
        InitOnce ();
        return use_global_lock;
      }
      set {
        InitOnce ();
        use_global_lock = value;
      }
    }

    // Initialize the world.
    //
    // This logically belongs in the static constructor (as it only needs
    // to be done once), except for one thing: if the .config file has a
    // syntax error, .NET throws a ConfigurationException.  If we read the
    // .config file in the static ctor, we throw a ConfigurationException
    // from the static ctor, which results in a TypeLoadException.  Oops.
    // Reading the .config file here will allow the static ctor to
    // complete successfully, allowing us to throw a normal
    // ConfigurationException should the .config file contain an error.
    //
    // There are also some ordering issues.
    //
    // DiagnosticsConfigurationHandler doesn't store values within TraceImpl,
    // but instead stores values it reads from the .config file within a
    // TraceImplSettings object (accessible via the TraceImplSettings.Key key
    // in the IDictionary returned).
    private static void InitOnce ()
    {
      if (initLock != null) {
        lock (initLock) {
          if (listeners == null) {
            IDictionary       d = DiagnosticsConfiguration.Settings;
            TraceImplSettings s = (TraceImplSettings) d [TraceImplSettings.Key];

            d.Remove (TraceImplSettings.Key);

            autoFlush   = s.AutoFlush;
            indentLevel = s.IndentLevel;
            indentSize  = s.IndentSize;
            listeners   = s.Listeners;
          }
        }
        initLock = null;
      }
    }

    // FIXME: According to MSDN, this method should display a dialog box
    [MonoTODO]
    public static void Assert (bool condition)
    {
      if (!condition)
        Fail (new StackTrace(true).ToString());
    }

    // FIXME: According to MSDN, this method should display a dialog box
    [MonoTODO]
    public static void Assert (bool condition, string message)
    {
      if (!condition)
        Fail (message);
    }

    // FIXME: According to MSDN, this method should display a dialog box
    [MonoTODO]
    public static void Assert (bool condition, string message, 
      string detailMessage)
    {
      if (!condition)
        Fail (message, detailMessage);
    }

    public static void Close ()
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Close ();
        }
      }
    }

    // FIXME: From testing .NET, this method should display a dialog
    //(it probably depends on the listener)p
    [MonoTODO]
    public static void Fail (string message)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Fail (message);
        }
      }
    }

    // FIXME: From testing .NET, this method should display a dialog
    // (it probably depends on the listener)p
    [MonoTODO]
    public static void Fail (string message, string detailMessage)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Fail (message, detailMessage);
        }
      }
    }

    public static void Flush ()
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners){
          listener.Flush ();
        }
      }
    }

    public static void Indent ()
    {
      IndentLevel ++;
    }

    public static void Unindent ()
    {
      IndentLevel --;
    }

    public static void Write (object value)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Write (value);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void Write (string message)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Write (message);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void Write (object value, string category)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Write (value, category);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void Write (string message, string category)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.Write (message, category);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void WriteIf (bool condition, object value)
    {
      if (condition)
        Write (value);
    }

    public static void WriteIf (bool condition, string message)
    {
      if (condition)
        Write (message);
    }

    public static void WriteIf (bool condition, object value, 
      string category)
    {
      if (condition)
        Write (value, category);
    }

    public static void WriteIf (bool condition, string message, 
      string category)
    {
      if (condition)
        Write (message, category);
    }

    public static void WriteLine (object value)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.WriteLine (value);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void WriteLine (string message)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.WriteLine (message);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void WriteLine (object value, string category)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.WriteLine (value, category);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void WriteLine (string message, string category)
    {
      lock (ListenersSyncRoot) {
        foreach (TraceListener listener in Listeners) {
          listener.WriteLine (message, category);

          if (AutoFlush)
            listener.Flush ();
        }
      }
    }

    public static void WriteLineIf (bool condition, object value)
    {
      if (condition)
        WriteLine (value);
    }

    public static void WriteLineIf (bool condition, string message)
    {
      if (condition)
        WriteLine (message);
    }

    public static void WriteLineIf (bool condition, object value, 
      string category)
    {
      if (condition)
        WriteLine (value, category);
    }

    public static void WriteLineIf (bool condition, string message, 
      string category)
    {
      if (condition)
        WriteLine (message, category);
    }
  }
}

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