GCD sources should return passed-in handle for handle method

[jkh@…]

In this small example of a socket source:

s = TCPServer.open(hostname, port) src = Dispatch::Source.new(Dispatch::Source::READ, s, 0, q) { |src|

sock = src.handle sock.accept

}

You don't actually get the original handle back and therefore cannot call the accept function on it. Sources should encapsulate the original handle so that you can safely get it inside the handler block.

[ernest.prabhakar@…]

Fixed in r3320

Changed to allow (and return) anything that can respond to "to_i" as a handle, for maximum flexibility.