| /* |
| * Copyright 2011 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. |
| */ |
| |
| // Author: morlovich@google.com (Maksim Orlovich) |
| // |
| // Implements SlowWorker, which runs a single task only in a background thread. |
| |
| #include "pagespeed/kernel/thread/slow_worker.h" |
| |
| #include "pagespeed/kernel/base/function.h" |
| |
| namespace net_instaweb { |
| |
| class ThreadSystem; |
| |
| SlowWorker::SlowWorker(StringPiece thread_name, ThreadSystem* runtime) |
| : Worker(thread_name, runtime) { |
| } |
| |
| SlowWorker::~SlowWorker() { |
| } |
| |
| void SlowWorker::RunIfNotBusy(Function* closure) { |
| bool ok = QueueIfPermitted(closure); |
| if (!ok) { |
| closure->CallCancel(); |
| } |
| } |
| |
| bool SlowWorker::IsPermitted(Function* closure) { |
| return NumJobs() == 0; |
| } |
| |
| } // namespace net_instaweb |