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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Runtime;
using System.Runtime.Diagnostics;
using System.ServiceModel.Diagnostics;
using System.Threading;
using System.ServiceModel.Diagnostics.Application;
class TracingConnection : DelegatingConnection
{
ServiceModelActivity activity;
static WaitCallback callback;
public TracingConnection(IConnection connection, ServiceModelActivity activity)
: base(connection)
{
this.activity = activity;
}
public TracingConnection(IConnection connection, bool inheritCurrentActivity)
: base(connection)
{
this.activity = inheritCurrentActivity ?
ServiceModelActivity.CreateActivity(DiagnosticTraceBase.ActivityId, false) :
ServiceModelActivity.CreateActivity();
Fx.Assert(this.activity != null, "");
if (DiagnosticUtility.ShouldUseActivity && !inheritCurrentActivity)
{
if (null != FxTrace.Trace)
{
FxTrace.Trace.TraceTransfer(this.activity.Id);
}
}
}
public override void Abort()
{
try
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
base.Abort();
}
}
finally
{
if (this.activity != null)
{
this.activity.Dispose();
}
}
}
static WaitCallback Callback
{
get
{
if (TracingConnection.callback == null)
{
TracingConnection.callback = new WaitCallback(TracingConnection.WaitCallback);
}
return TracingConnection.callback;
}
}
public override void Close(TimeSpan timeout, bool asyncAndLinger)
{
try
{
using (ServiceModelActivity.BoundOperation(this.activity, true))
{
base.Close(timeout, asyncAndLinger);
}
}
finally
{
if (this.activity != null)
{
this.activity.Dispose();
}
}
}
public override void Shutdown(TimeSpan timeout)
{
using (ServiceModelActivity.BoundOperation(this.activity, true))
{
base.Shutdown(timeout);
}
}
internal void ActivityStart(string name)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
ServiceModelActivity.Start(this.activity, SR.GetString(SR.ActivityReceiveBytes, name), ActivityType.ReceiveBytes);
}
}
internal void ActivityStart(Uri uri)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
ServiceModelActivity.Start(this.activity, SR.GetString(SR.ActivityReceiveBytes, uri.ToString()), ActivityType.ReceiveBytes);
}
}
public override AsyncCompletionResult BeginWrite(byte[] buffer, int offset, int size, bool immediate, TimeSpan timeout, WaitCallback callback, object state)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
return base.BeginWrite(buffer, offset, size, immediate, timeout, callback, state);
}
}
public override void EndWrite()
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
base.EndWrite();
}
}
public override void Write(byte[] buffer, int offset, int size, bool immediate, TimeSpan timeout)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
base.Write(buffer, offset, size, immediate, timeout);
}
}
public override void Write(byte[] buffer, int offset, int size, bool immediate, TimeSpan timeout, BufferManager bufferManager)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
base.Write(buffer, offset, size, immediate, timeout, bufferManager);
}
}
public override int Read(byte[] buffer, int offset, int size, TimeSpan timeout)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
return base.Read(buffer, offset, size, timeout);
}
}
static void WaitCallback(object state)
{
TracingConnectionState tracingData = (TracingConnectionState)state;
tracingData.ExecuteCallback();
}
public override AsyncCompletionResult BeginRead(int offset, int size, TimeSpan timeout, System.Threading.WaitCallback callback, object state)
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
TracingConnectionState completion = new TracingConnectionState(callback, this.activity, state);
return base.BeginRead(offset, size, timeout, TracingConnection.Callback, completion);
}
}
public override int EndRead()
{
int retval = 0;
try
{
if (this.activity != null)
{
ExceptionUtility.UseActivityId(this.activity.Id);
}
retval = base.EndRead();
}
finally
{
ExceptionUtility.ClearActivityId();
}
return retval;
}
public override object DuplicateAndClose(int targetProcessId)
{
using (ServiceModelActivity.BoundOperation(this.activity, true))
{
return base.DuplicateAndClose(targetProcessId);
}
}
class TracingConnectionState
{
object state;
WaitCallback callback;
ServiceModelActivity activity;
internal TracingConnectionState(WaitCallback callback, ServiceModelActivity activity, object state)
{
this.activity = activity;
this.callback = callback;
this.state = state;
}
internal void ExecuteCallback()
{
using (ServiceModelActivity.BoundOperation(this.activity))
{
this.callback(state);
}
}
}
}
}
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