chromium/base/atomic_sequence_num.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef BASE_ATOMIC_SEQUENCE_NUM_H_
#define BASE_ATOMIC_SEQUENCE_NUM_H_

#include <atomic>

namespace base {

// AtomicSequenceNumber is a thread safe increasing sequence number generator.
// Its constructor doesn't emit a static initializer, so it's safe to use as a
// global variable or static member.
class AtomicSequenceNumber { … };

}  // namespace base

#endif  // BASE_ATOMIC_SEQUENCE_NUM_H_