move yield from suspend to pause, see #1248

lualib/skynet/socket.lua

@@ -37,13 +37,13 @@ local function pause_socket(s, size)
 	end
 	driver.pause(s.id)
 	s.pause = true
+	skynet.yield()	-- there are subsequent socket messages in mqueue, maybe.
 end
 
 local function suspend(s)
 	assert(not s.co)
 	s.co = coroutine.running()
 	if s.pause then
-		skynet.yield()	-- there are subsequent socket messages in mqueue, maybe.
 		skynet.error(string.format("Resume socket (%d)", s.id))
 		driver.start(s.id)
 		skynet.wait(s.co)
@@ -75,10 +75,10 @@ socket_message[1] = function(id, size, data)
 		-- read size
 		if sz >= rr then
 			s.read_required = nil
-			wakeup(s)
 			if sz > BUFFER_LIMIT then
 				pause_socket(s, sz)
 			end
+			wakeup(s)
 		end
 	else
 		if s.buffer_limit and sz > s.buffer_limit then
@@ -90,10 +90,10 @@ socket_message[1] = function(id, size, data)
 			-- read line
 			if driver.readline(s.buffer,nil,rr) then
 				s.read_required = nil
-				wakeup(s)
 				if sz > BUFFER_LIMIT then
 					pause_socket(s, sz)
 				end
+				wakeup(s)
 			end
 		elseif sz > BUFFER_LIMIT and not s.pause then
 			pause_socket(s, sz)