add skynet.context and enhance debug console command service

lualib/skynet.lua

@@ -439,6 +439,12 @@ function skynet.ret(msg, sz)
 	return ret
 end
 
+function skynet.context()
+	local co_session = session_coroutine_id[running_thread]
+	local co_address = session_coroutine_address[running_thread]
+	return co_session, co_address
+end
+
 function skynet.ignoreret()
 	-- We use session for other uses
 	session_coroutine_id[running_thread] = nil
@@ -782,6 +788,14 @@ function skynet.stat(what)
 end
 
 function skynet.task(ret)
+	if type(ret) == "number" then
+		local co = session_id_coroutine[ret]
+		if co then
+			return debug.traceback(co)
+		else
+			return "No session"
+		end
+	end
 	local t = 0
 	for session,co in pairs(session_id_coroutine) do
 		if ret then

lualib/skynet/debug.lua

@@ -32,10 +32,14 @@ local function init(skynet, export)
 			skynet.ret(skynet.pack(stat))
 		end
 
-		function dbgcmd.TASK()
-			local task = {}
-			skynet.task(task)
-			skynet.ret(skynet.pack(task))
+		function dbgcmd.TASK(session)
+			if session then
+				skynet.ret(skynet.pack(skynet.task(session)))
+			else
+				local task = {}
+				skynet.task(task)
+				skynet.ret(skynet.pack(task))
+			end
 		end
 
 		function dbgcmd.INFO(...)

service/service_mgr.lua

@@ -16,7 +16,7 @@ local function request(name, func, ...)
 	end
 
 	for _,v in ipairs(s) do
-		skynet.wakeup(v)
+		skynet.wakeup(v.co)
 	end
 
 	if ok then
@@ -47,7 +47,12 @@ local function waitfor(name , func, ...)
 		return request(name, func, ...)
 	end
 
-	table.insert(s, co)
+	local session, source = skynet.context()
+	table.insert(s, {
+		co = co,
+		session = session,
+		source = source,
+	})
 	skynet.wait()
 	s = service[name]
 	if type(s) == "string" then
@@ -91,7 +96,11 @@ local function list_service()
 		if type(v) == "string" then
 			v = "Error: " .. v
 		elseif type(v) == "table" then
-			v = "Querying"
+			local querying = { "Querying:" }
+			for _, detail in ipairs(v) do
+				table.insert(querying, skynet.address(detail.source) .. " " .. tostring(skynet.call(detail.source, "debug", "TASK", detail.session)))
+			end
+			v = table.concat(querying, "\n")
 		else
 			v = skynet.address(v)
 		end