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/**
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import("sync");
/* performs function on an object from the cache, all within a lock */
function syncedWithCache(name, fn) {
return sync.doWithStringLock("cache/"+name, function() {
var parts = name.split(".");
var obj = appjet.cache;
for (var i = 0; i < parts.length; i++) {
var p = parts[i];
if (!obj[p]) {
obj[p] = {};
}
obj = obj[p];
}
return fn(obj);
});
}
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