| // 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) |
| // |
| // Contains SchedulerThread, used to run the Scheduler dispatch loop for |
| // non-blocking servers. |
| |
| #ifndef PAGESPEED_KERNEL_THREAD_SCHEDULER_THREAD_H_ |
| #define PAGESPEED_KERNEL_THREAD_SCHEDULER_THREAD_H_ |
| |
| #include "pagespeed/kernel/base/basictypes.h" |
| #include "pagespeed/kernel/base/thread.h" |
| #include "pagespeed/kernel/base/thread_system.h" |
| |
| namespace net_instaweb { |
| |
| class Function; |
| class Scheduler; |
| |
| // This class is a helper used to dispatch events on a scheduler in a thread |
| // in case where the server infrastructure is non-blocking and therefore does |
| // not provide a natural way to do it. |
| class SchedulerThread : public ThreadSystem::Thread { |
| public: |
| // Creates the thread. The user still needs to call Start() manually. |
| SchedulerThread(ThreadSystem* thread_system, Scheduler* scheduler); |
| |
| // Returns a function that, when run, will properly synchronize with this |
| // thread and shut it down cleanly, deleting the object as well. |
| // It is suggested for use with RewriteDriverFactory::defer_cleanup(); as it |
| // needs to be run after it's OK if scheduler timeouts no longer work. |
| Function* MakeDeleter(); |
| |
| protected: |
| virtual void Run(); |
| |
| private: |
| class CleanupFunction; |
| friend class CleanupFunction; |
| |
| virtual ~SchedulerThread(); |
| |
| bool quit_; |
| Scheduler* scheduler_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SchedulerThread); |
| }; |
| |
| } // namespace net_instaweb |
| |
| #endif // PAGESPEED_KERNEL_THREAD_SCHEDULER_THREAD_H_ |