mock_scheduler.h

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/*
 * 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.
 */


#ifndef PAGESPEED_KERNEL_THREAD_MOCK_SCHEDULER_H_
#define PAGESPEED_KERNEL_THREAD_MOCK_SCHEDULER_H_

#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/thread_annotations.h"
#include "pagespeed/kernel/base/thread_system.h"
#include "pagespeed/kernel/base/timer.h"
#include "pagespeed/kernel/thread/queued_worker_pool.h"
#include "pagespeed/kernel/thread/scheduler.h"

namespace net_instaweb {

class MockTimer;

class MockScheduler : public Scheduler {
 public:
  MockScheduler(ThreadSystem* thread_system,
                MockTimer* timer);
  virtual ~MockScheduler();

  virtual void RegisterWorker(QueuedWorkerPool::Sequence* w)
      LOCKS_EXCLUDED(mutex());
  virtual void UnregisterWorker(QueuedWorkerPool::Sequence* w)
      LOCKS_EXCLUDED(mutex());

  void AwaitQuiescence() LOCKS_EXCLUDED(mutex());

  void AdvanceTimeMs(int64 timeout_ms) LOCKS_EXCLUDED(mutex()) {
    AdvanceTimeUs(timeout_ms * Timer::kMsUs);
  }
  void AdvanceTimeUs(int64 timeout_us) LOCKS_EXCLUDED(mutex());

  void SetTimeUs(int64 time_us) LOCKS_EXCLUDED(mutex());

 protected:
  virtual void AwaitWakeupUntilUs(int64 wakeup_time_us)
      EXCLUSIVE_LOCKS_REQUIRED(mutex());

 private:
  inline void SetTimeUsMutexHeld(int64 time_us)
      EXCLUSIVE_LOCKS_REQUIRED(mutex());

  MockTimer* timer_;
  QueuedWorkerPool::SequenceSet workers_ GUARDED_BY(mutex());

  
};

}  

#endif