rewrite SSM and clonefunction

service/bootstrap.lua

@@ -1,17 +1,15 @@
 local skynet = require "skynet"
 local harbor = require "skynet.harbor"
 require "skynet.manager"	-- import skynet.launch, ...
-local memory = require "skynet.memory"
 
 skynet.start(function()
-	local sharestring = tonumber(skynet.getenv "sharestring" or 4096)
-	memory.ssexpand(sharestring)
-
 	local standalone = skynet.getenv "standalone"
 
 	local launcher = assert(skynet.launch("snlua","launcher"))
 	skynet.name(".launcher", launcher)
 
+	skynet.newservice "garbagecollect"
+
 	local harbor_id = tonumber(skynet.getenv "harbor" or 0)
 	if harbor_id == 0 then
 		assert(standalone ==  nil)

service/debug_console.lua

@@ -155,7 +155,6 @@ function COMMAND.help()
 		debug = "debug address : debug a lua service",
 		signal = "signal address sig",
 		cmem = "Show C memory info",
-		shrtbl = "Show shared short string table info",
 		ping = "ping address",
 		call = "call address ...",
 		trace = "trace address [proto] [on|off]",
@@ -337,11 +336,6 @@ function COMMAND.cmem()
 	return tmp
 end
 
-function COMMAND.shrtbl()
-	local n, total, longest, space, slots, variance = memory.ssinfo()
-	return { n = n, total = total, longest = longest, space = space, slots = slots, average = n / slots, variace = variance }
-end
-
 function COMMAND.ping(address)
 	address = adjust_address(address)
 	local ti = skynet.now()