add snax.gateserver snax.loginserver snax.msgserver

lualib/snax/gateserver.lua

@@ -0,0 +1,130 @@
+local skynet = require "skynet"
+local netpack = require "netpack"
+local socketdriver = require "socketdriver"
+
+local gateserver = {}
+
+local socket	-- listen socket
+local queue		-- message queue
+local maxclient	-- max client
+local client_number = 0
+local CMD = setmetatable({}, { __gc = function() netpack.clear(queue) end })
+local nodelay = false
+
+local connection = {}
+
+function gateserver.openclient(fd)
+	if connection[fd] then
+		socketdriver.start(fd)
+	end
+end
+
+function gateserver.closeclient(fd)
+	local c = connection[fd]
+	if c then
+		connection[fd] = false
+		socketdriver.close(fd)
+	end
+end
+
+function gateserver.start(handler)
+	assert(handler.message)
+	assert(handler.connect)
+
+	function CMD.open( source, conf )
+		assert(not socket)
+		local address = conf.address or "0.0.0.0"
+		local port = assert(conf.port)
+		maxclient = conf.maxclient or 1024
+		nodelay = conf.nodelay
+		socket = socketdriver.listen(address, port)
+		socketdriver.start(socket)
+		if handler.open then
+			return handler.open(source, conf)
+		end
+	end
+
+	function CMD.close()
+		assert(socket)
+		socketdriver.close(socket)
+		socket = nil
+	end
+
+	local MSG = {}
+
+	function MSG.data(fd, msg, sz)
+		if connection[fd] then
+			handler.message(fd, msg, sz)
+		end
+	end
+
+	function MSG.more()
+		for fd, msg, sz in netpack.pop, queue do
+			if connection[fd] then
+				handler.message(fd, msg, sz)
+			end
+		end
+	end
+
+	function MSG.open(fd, msg)
+		if client_number >= maxclient then
+			socketdriver.close(fd)
+			return
+		end
+		if nodelay then
+			socketdriver.nodelay(fd)
+		end
+		connection[fd] = true
+		client_number = client_number + 1
+		handler.connect(fd, msg)
+	end
+
+	local function close_fd(fd)
+		local c = connection[fd]
+		if c ~= nil then
+			connection[fd] = nil
+			client_number = client_number - 1
+		end
+	end
+
+	function MSG.close(fd)
+		if handler.disconnect then
+			handler.disconnect(fd)
+		end
+		close_fd(fd)
+	end
+
+	function MSG.error(fd, msg)
+		if handler.error then
+			handler.error(fd)
+		end
+		close_fd(fd)
+	end
+
+	skynet.register_protocol {
+		name = "socket",
+		id = skynet.PTYPE_SOCKET,	-- PTYPE_SOCKET = 6
+		unpack = function ( msg, sz )
+			return netpack.filter( queue, msg, sz)
+		end,
+		dispatch = function (_, _, q, type, ...)
+			queue = q
+			if type then
+				MSG[type](...)
+			end
+		end
+	}
+
+	skynet.start(function()
+		skynet.dispatch("lua", function (_, address, cmd, ...)
+			local f = CMD[cmd]
+			if f then
+				skynet.ret(skynet.pack(f(address, ...)))
+			else
+				skynet.ret(skynet.pack(handler.command(cmd, address, ...)))
+			end
+		end)
+	end)
+end
+
+return gateserver