std: some cleanup in net::tcp rename listen_to_conn->listen

src/libstd/net_tcp.rs

@@ -19,7 +19,7 @@ export tcp_err_data, tcp_connect_err_data;
 // operations on a tcp_socket
 export write, write_future, read_start, read_stop;
 // tcp server stuff
-export listen_for_conn, accept;
+export listen, accept;
 // tcp client stuff
 export connect;
 // helper methods
@@ -676,7 +676,7 @@ a `result` instance containing empty data of type `()` on a
 successful/normal shutdown, and a `tcp_err_data` record in the event
 of listen exiting because of an error
 "]
-fn listen_for_conn(host_ip: ip::ip_addr, port: uint, backlog: uint,
+fn listen(host_ip: ip::ip_addr, port: uint, backlog: uint,
           iotask: iotask,
           on_establish_cb: fn~(comm::chan<option<tcp_err_data>>),
           +new_connect_cb: fn~(tcp_new_connection,
@@ -697,8 +697,7 @@ fn listen_for_conn(host_ip: ip::ip_addr, port: uint, backlog: uint,
     };
     let server_data_ptr = ptr::addr_of(server_data);
 
-    let setup_po = comm::port::<option<tcp_err_data>>();
-    let setup_ch = comm::chan(setup_po);
+    let setup_result = comm::listen {|setup_ch|
         iotask::interact(iotask) {|loop_ptr|
             let tcp_addr = ipv4_ip_addr_to_sockaddr_in(host_ip,
                                                        port);
@@ -737,7 +736,9 @@ fn listen_for_conn(host_ip: ip::ip_addr, port: uint, backlog: uint,
               }
             }
         };
-    alt comm::recv(setup_po) {
+        setup_ch.recv()
+    };
+    alt setup_result {
       some(err_data) {
         // we failed to bind/list w/ libuv
         result::err(err_data.to_tcp_err())
@@ -1338,7 +1339,7 @@ mod test {
         task::spawn_sched(task::manual_threads(1u)) {||
             let server_ip_addr = ip::v4::parse_addr(server_ip);
             let listen_result =
-                listen_for_conn(server_ip_addr, server_port, 128u,
+                listen(server_ip_addr, server_port, 128u,
                 iotask,
                 // on_establish_cb -- called when listener is set up
                 {|kill_ch|