net_tcp doesn't use SO_REUSEADDR

[jesse99]

which is really annoying.

[catamorphism]

Nominating for milestone 3, feature-complete

[bblum]

libextra::timer and libextra::net_tcp are deprecated pending #6435. Is this still functionality that will be needed in the new implementation?

[metajack]

Yes. SO_REUSEADDR is very commonly used.

[pnkfelix]

sounds critical for implementing server. accepted for feature complete

(did I mean to say "Servo" above? Not my area of expertise, clearly.)

[anasazi]

I don't think this is relevant in the new runtime's non-blocking I/O (libuv takes care of this stuff internally).
Unless we're going to write a native I/O interface, then I think we can close this.

[alexcrichton]

Closing due to the libextra modules having been jettisoned and libuv handling this much differently.