private static void asyncReadAllReadCallback(IAsyncResult ar)
{
IOAsyncResult myar = (IOAsyncResult)ar.AsyncState;
try {
int len = myar.Stream.EndRead(ar);
if (len <= 0)
{
throw new EndOfStreamException();
}
myar.Offset += len;
myar.Left -= len;
myar.Count += len;
if (myar.Left > 0)
{
myar.Stream.BeginRead(myar.Buffer, myar.Offset, myar.Left, asyncReadAllReadCallback, ar);
}
else
{
myar.SetCompleted(false, myar.Count, null);
}
} catch (Exception ex) {
myar.SetCompleted(false, ex);
}
}
public static IAsyncResult BeginReadAll(Stream stream, byte[] buffer, int offset, int count, AsyncCallback callback, object state)
{
IOAsyncResult ar = new IOAsyncResult(callback, state)
{
Stream = stream, Buffer = buffer, Offset = 0, Count = 0, Left = count
};
if (ar.Left <= 0)
{
ar.SetCompleted(true, null);
return(ar);
}
stream.BeginRead(ar.Buffer, ar.Offset, ar.Left, asyncReadAllReadCallback, ar);
return(ar);
}
