Revision created by MOE tool push_codebase.

MOE_MIGRATION=


git-svn-id: https://leveldb.googlecode.com/svn/trunk@22 62dab493-f737-651d-591e-8d6aee1b9529

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diff --git a/util/mutexlock.h b/util/mutexlock.h
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-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#ifndef STORAGE_LEVELDB_UTIL_MUTEXLOCK_H_
-#define STORAGE_LEVELDB_UTIL_MUTEXLOCK_H_
-
-#include "port/port.h"
-
-namespace leveldb {
-
-// Helper class that locks a mutex on construction and unlocks the mutex when
-// the destructor of the MutexLock object is invoked.
-//
-// Typical usage:
-//
-//   void MyClass::MyMethod() {
-//     MutexLock l(&mu_);       // mu_ is an instance variable
-//     ... some complex code, possibly with multiple return paths ...
-//   }
-
-class MutexLock {
- public:
-  explicit MutexLock(port::Mutex *mu) : mu_(mu) {
-    this->mu_->Lock();
-  }
-  ~MutexLock() { this->mu_->Unlock(); }
-
- private:
-  port::Mutex *const mu_;
-  // No copying allowed
-  MutexLock(const MutexLock&);
-  void operator=(const MutexLock&);
-};
-
-}
-
-
-#endif  // STORAGE_LEVELDB_UTIL_MUTEXLOCK_H_