public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
{
var ar = new AsyncResult<int>(callback, state);
Action closedHandler = null;
closedHandler = () =>
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
// Set the response to 0 if we've closed
ar.SetAsCompleted(0, false);
}
_onClosed -= closedHandler;
}
};
_onClosed += closedHandler;
if (CancellationToken.IsCancellationRequested)
{
ar.SetAsCompleted(0, true);
return ar;
}
int read = Read(buffer, offset, count);
if (read != 0 || CancellationToken.IsCancellationRequested)
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
ar.SetAsCompleted(read, true);
}
}
}
else
{
Action writeHandler = null;
writeHandler = () =>
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
read = Read(buffer, offset, count);
ar.SetAsCompleted(read, false);
}
_onWrite -= writeHandler;
}
};
_onWrite += writeHandler;
}
return ar;
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
{
var ar = new AsyncResult <int>(callback, state);
Action closedHandler = null;
closedHandler = () =>
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
// Set the response to 0 if we've closed
ar.SetAsCompleted(0, false);
}
_onClosed -= closedHandler;
}
};
_onClosed += closedHandler;
if (Ended)
{
ar.SetAsCompleted(0, true);
return(ar);
}
int read = Read(buffer, offset, count);
if (read != 0 || Ended)
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
ar.SetAsCompleted(read, true);
}
}
}
else
{
Action writeHandler = null;
writeHandler = () =>
{
lock (_lockObj)
{
if (!ar.IsCompleted)
{
read = Read(buffer, offset, count);
ar.SetAsCompleted(read, false);
}
_onWrite -= writeHandler;
}
};
_onWrite += writeHandler;
}
return(ar);
}