Erlang简单gen_tcp例子

今天下午写了一个简单 client / server通信例子。

前端：flash AS3

后台：Erlang

package
{
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.IOErrorEvent;
	import flash.events.ProgressEvent;
	import flash.events.SecurityErrorEvent;
	import flash.net.Socket;
	import flash.utils.ByteArray;
	
	public class MySocket extends Sprite
	{
		private static const port:int = 8080;
		private static const ip:String = "127.0.0.1";
		
		private var socket:Socket;
		public function MySocket()
		{
			socket = new Socket();
			socket.connect(ip,port);
			
			socket.addEventListener(Event.CLOSE, closeHandler);
			socket.addEventListener(Event.CONNECT, connectHandler);
			socket.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
			socket.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
			socket.addEventListener(ProgressEvent.SOCKET_DATA, socketDataHandler);
		}
		
		private function closeHandler(e:Event):void
		{
			trace("connect close");
		}
		
		private function connectHandler(e:Event):void
		{
			trace("connect ok");
			//test -> send to socket
			socket.writeInt(6);
			socket.flush();
		}
		
		private function ioErrorHandler(e:IOErrorEvent):void
		{
			trace(e.errorID);
		}
		
		private function securityErrorHandler(e:SecurityErrorEvent):void
		{
			
		}
		
		private function socketDataHandler(e:ProgressEvent):void
		{
			var msg:int = socket.readInt();
			trace(msg.toString());
		}
	}
}

server：

%%Author：Lee
%%socket example

-module(my_socket).
-compile(export_all).

-define(TCP_OPTION,[
					binary,
					{packet,0},
					{active,false},
					{reuseaddr, true}
					]).
					
-define(POLICY_PORT,8080).  %%监听端口


%%gen_tcp表用TCP连接
%%binary表二进制流方式
%%packet,2：表包头长度2字节
%%reuseaddr, true:表多个实例可重用同一端口
%% {active,true} 创建一个主动套字节(非阻塞)
%% {active,false} 创建一个被动套字节(阻塞),如果为false表必须手工处理阻塞,否则阻塞在此处无法收听,当前我无法处理
%%{active, once} 创建一个一次性被动套字节(阻塞),只收听一次后堵塞，必须调用inet:setopts(Socket, [{active, once}]),后才可收听下一条
%% {active,once} 创建一个主动套字节仅接收一条消息,如想接收下一条必须再次激活(半阻塞)

start()->
	case gen_tcp:listen(?POLICY_PORT,?TCP_OPTION) of
		{ok,LSock}->
			io:format("success listen~n",[]),
			accept(LSock);
		_->
			io:format("unknow~n")
	end.

accept(LSock) ->
		case gen_tcp:accept(LSock) of
		{ok, CSock} ->
			spawn(?MODULE,loop_accept,[CSock]);
		{error,Reason} -> Reason
		end,
		accept(LSock).
	
loop_accept(LSock)->
	case gen_tcp:recv(LSock,0) of
		{ok,Data} ->
			io:format("receive data~p~n",[Data]),
			gen_tcp:send(LSock,Data),
			loop_accept(LSock);
		_->
			error
	end.
	%%gen_tcp:close(LSock).
	
	
	

可以正常的通信， 打算明天用 erlang的 gen_server模拟一个server端...就到这吧..