Add ltask.servicepath()

Author: cloudwu

lualib/service.lua

@@ -605,6 +605,10 @@ function ltask.no_response()
 	session_coroutine_response[running_thread] = nil
 end
 
+function ltask.servicepath(path)
+    return ltask.call(SERVICE_ROOT, "servicepath", path)
+end
+
 function ltask.spawn(name, ...)
     return ltask.call(SERVICE_ROOT, "spawn", name, ...)
 end
@@ -812,7 +816,7 @@ local function sys_service_init(t)
 	-- The first system message
 	_G.require = yieldable_require
 	local initfunc = assert(load(t.initfunc))
-	local func = assert(initfunc(t.name))
+	local func = assert(initfunc(t.name, t.path))
 	local handler = func(table.unpack(t.args))
 	ltask.dispatch(handler)
 	if service == nil then

service/root.lua

@@ -126,6 +126,7 @@ local function spawn(t)
 	ltask.syscall(address, "init", {
 		initfunc = t.initfunc or config.initfunc,
 		name = t.name,
+		path = t.path,
 		args = t.args or {},
 	})
 	return address
@@ -188,9 +189,16 @@ function S.tracelog(timeout)
 	return tlog
 end
 
+local SERVICE_PATH
+
+function S.servicepath(path)
+	SERVICE_PATH = path
+end
+
 function S.spawn(name, ...)
 	return spawn {
 		name = name,
+		path = SERVICE_PATH,
 		args = {...},
 	}
 end
@@ -206,6 +214,7 @@ end
 function S.uniqueservice(name, ...)
 	return spawn_unique {
 		name = name,
+		path = SERVICE_PATH,
 		args = {...},
 	}
 end