multicast support

service/testgroup_c.lua

@@ -0,0 +1,12 @@
+local skynet = require "skynet"
+local id = ...
+
+skynet.dispatch(function (msg,sz)
+	print(id, skynet.tostring(msg,sz))
+end
+)
+
+skynet.start(function()
+	print("start",id)
+	skynet.enter_group(1)
+end)