internal NodeReadableStream(IronJS.Environment env, StreamReader reader)
: base(env)
{
this.m_Reader = reader;
EventManager.Add(this);
// Define the handler to respond to asynchronous operations.
AsyncCallback handler = null;
handler = (result) =>
{
if (result.IsCompleted)
{
int bytes = this.m_Reader.BaseStream.EndRead(result);
if (bytes == 0)
{
// There is no data at the moment.
}
else if (!this.m_Paused && (this.OnData != null || this.m_PipeDestination != null))
{
// Send it now.
if (this.m_PipeDestination != null)
this.m_PipeDestination.write(new NodeBuffer(this.Env, this.m_Buffer, 0, bytes)); // TODO: Support writing as string as well?
if (this.OnData != null)
this.OnData(this, new DataEventArgs(this.m_Buffer, 0, bytes, this.m_Encoding));
}
else
{
// Queue it up.
this.m_Queue.Add(new DataEventArgs(this.m_Buffer, 0, bytes, this.m_Encoding));
}
if (this.m_Reader.BaseStream.Length != this.m_Reader.BaseStream.Position || this.m_Queue.Count > 0)
this.m_Reader.BaseStream.BeginRead(this.m_Buffer, 0, 256, handler, null);
else
{
if (this.OnEnd != null)
this.OnEnd(this, new EventArgs());
EventManager.Remove(this);
}
}
};
// Starts an asynchronous reading operation.
if (this.m_Reader.BaseStream.Length != this.m_Reader.BaseStream.Position)
this.m_Reader.BaseStream.BeginRead(this.m_Buffer, 0, 256, handler, null);
else
{
if (this.OnEnd != null)
this.OnEnd(this, new EventArgs());
EventManager.Remove(this);
}
}
