named_lock_manager.h

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/*
 * Copyright 2010 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_BASE_NAMED_LOCK_MANAGER_H_
#define PAGESPEED_KERNEL_BASE_NAMED_LOCK_MANAGER_H_

#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/base/string_util.h"

namespace net_instaweb {

class Function;

class NamedLock {
 public:
  virtual ~NamedLock();

  virtual void LockTimedWait(int64 wait_ms, Function* callback) = 0;

  virtual void LockTimedWaitStealOld(int64 wait_ms, int64 steal_ms,
                                     Function* callback) = 0;

  virtual void Unlock() = 0;

  virtual bool Held() = 0;

  virtual GoogleString name() const = 0;
};

class NamedLockManager {
 public:
  virtual ~NamedLockManager();
  virtual NamedLock* CreateNamedLock(const StringPiece& name) = 0;
};

}  

#endif