diff --git a/socket.rs b/socket.rs
new file mode 100644
index 0000000..21adeef
--- /dev/null
+++ b/socket.rs
@@ -0,0 +1,82 @@
+extern mod sync;
+
+// str op trait
+use std::str::StrSlice;
+// for tcp listen
+use std::io::{TcpListener, TcpStream};
+use std::io::net::ip::SocketAddr;
+// for trait
+use std::io::{Listener, Writer, Acceptor, Buffer};
+// for spawn
+use std::task::spawn;
+// for read_line
+use std::io::BufferedStream;
+// for gathering chat msg
+use std::comm::SharedChan;
+// for chat msg storage
+use sync::RWArc;
+
+
+fn chat_loop(ss: &mut BufferedStream<TcpStream>, chan: SharedChan<~str>, arc: RWArc<~[~str]>) {
+    ss.write(bytes!("Welcome to Simple Chat Server!\n"));
+    ss.write(bytes!("Plz input yourname: "));
+    ss.flush();
+    let mut name : ~str = ss.read_line().unwrap();
+    name = name.trim_right().into_owned();
+    ss.write_str(format!("Hello, {}!\n", name));
+    ss.flush();
+    let mut pos = 0;
+    loop {
+        arc.read(|lines| {
+                println!("DEBUG arc.read() => {}", lines.to_str());
+                for i in range(pos, lines.len()) {
+                    ss.write_str(lines[i]);
+                }
+                pos = lines.len();
+            });
+        ss.write(bytes!(" > "));
+        ss.flush();
+        let reads = ss.read_line().unwrap();
+        if reads.trim().len() != 0 {
+            println!("DEBUG reads len =>>>>> {}", reads.len());
+            chan.send(format!("[{}] said: {}", name, reads));
+            println!("DEBUG: got '{}' from {}", reads.trim(), name);
+        }
+    }
+}
+
+fn main () {
+    //let ip : IpAddr = from_str("127.0.0.1").unwrap();
+    //let addr = SocketAddr{ip:ip, port:8888};
+    let addr : SocketAddr = from_str("127.0.0.1:8888").unwrap();
+
+    let listener = TcpListener::bind(addr).unwrap();
+    let mut acceptor = listener.listen().unwrap();
+    let (port, chan) : (Port<~str>, SharedChan<~str>)= SharedChan::new();
+    let arc : RWArc<~[~str]> = RWArc::new(~[]);
+
+    let arc_w = arc.clone();
+    spawn(proc() {
+        loop {
+            let msg = port.recv();
+            print!("DEBUG: {}", msg);
+            arc_w.write(|lines| lines.push(msg.to_str()));
+        }
+    });
+    loop {
+        match acceptor.accept() {
+            Err(_) => println!("error listen"),
+            Ok(mut stream) => {
+                println!("DEBUG: got connection from {} to {}",
+                         stream.peer_name().unwrap().to_str(),
+                         stream.socket_name().unwrap().to_str());
+                let chan = chan.clone();
+                let arc = arc.clone();
+                spawn(proc() {
+                    let mut stream = BufferedStream::new(stream);
+                    chat_loop(&mut stream, chan, arc);
+                });
+            }
+        }
+    }
+}