Cache和Session的rm方法都返回Promise

lib/Lib/Driver/Cache/FileCache.js

@@ -106,8 +106,13 @@ module.exports = Cache(function(){
         rm: function(name){
             var filePath = this.getStoredFile(name);
             if (isFile(filePath)) {
-                fs.unlink(filePath, function(){});
+                var deferred = getDefer();
+                fs.unlink(filePath, function(){
+                    deferred.resolve();
+                })
+                return deferred.promise;
             }
+            return getPromise();
         },
         /**
          * gc

lib/Lib/Driver/Session/DbSession.js

@@ -88,6 +88,7 @@ module.exports = Cache(function(){
             if (this.data) {
                 delete this.data[name];
             }
+            return getPromise();
         },
         /**
          * 将数据保存到数据库中

lib/Lib/Util/Cache.js

@@ -118,6 +118,7 @@ module.exports = Class(function(){
             if (key in this.cacheData) {
                 delete this.cacheData[key].data[name];
             }
+            return getPromise();
         },
         /**
          * gc

package.json

@@ -1,7 +1,7 @@
 {
   "name": "thinkjs",
   "description": "A MVC Web Framework For Node.js",
-  "version": "0.5.28",
+  "version": "0.5.29",
   "author": {
     "name": "welefen",
     "email": "welefen@gmail.com"