support socket.abandon / socket.start , Issue #73

lualib/socket.lua

@@ -275,7 +275,7 @@ function socket.unlock(id)
 end
 
 -- abandon use to forward socket id to other service
--- you must call socket.accept(id) later in other service
+-- you must call socket.start(id) later in other service
 function socket.abandon(id)
 	local s = socket_pool[id]
 	if s and s.buffer then

service/testsocket.lua

@@ -1,27 +1,44 @@
 local skynet = require "skynet"
 local socket = require "socket"
 
-local function accepter(id)
-	socket.start(id)
-	socket.write(id, "Hello Skynet\n")
-	while true do
-		local str = socket.readline(id,"\n")
-		if str then
-			socket.write(id, str .. "\n")
-		else
-			socket.close(id)
-			print("closed " .. id)
-			return
+local mode , id = ...
+
+if mode == "agent" then
+	id = tonumber(id)
+
+	skynet.start(function()
+		socket.start(id)
+
+		while true do
+			local str = socket.readline(id,"\n")
+			if str then
+				socket.write(id, str .. "\n")
+			else
+				socket.close(id)
+				print("closed " .. id)
+				break
+			end
 		end
-	end
-end
 
-skynet.start(function()
-	local id = socket.listen("127.0.0.1", 8000)
-
-	socket.start(id , function(id, addr)
-		print("connect from " .. addr .. " " .. id)
-		-- you can also call skynet.newservice for this socket id
-		skynet.fork(accepter, id)
+		skynet.exit()
 	end)
-end)
+else
+	local function accepter(id)
+		socket.start(id)
+		socket.write(id, "Hello Skynet\n")
+		skynet.newservice("testsocket", "agent", id)
+		-- notice: Some data on this connection(id) may lost before new service start.
+		-- So, be careful when you want to use start / abandon / start .
+		socket.abandon(id)
+	end
+
+	skynet.start(function()
+		local id = socket.listen("127.0.0.1", 8000)
+
+		socket.start(id , function(id, addr)
+			print("connect from " .. addr .. " " .. id)
+			-- you can also call skynet.newservice for this socket id
+			skynet.fork(accepter, id)
+		end)
+	end)
+end

skynet-src/socket_server.c

@@ -513,6 +513,10 @@ start_socket(struct socket_server *ss, struct request_start *request, struct soc
 		s->opaque = request->opaque;
 		result->data = "start";
 		return SOCKET_OPEN;
+	} else if (s->type == SOCKET_TYPE_CONNECTED) {
+		s->opaque = request->opaque;
+		result->data = "transfer";
+		return SOCKET_OPEN;
 	}
 	return -1;
 }