1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2017 Red Hat, Inc.
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
15 #ifndef CEPH_COUNTER_H
16 #define CEPH_COUNTER_H
27 Counter(const Counter &rhs) {
31 Counter(Counter &&rhs) {}
35 static uint64_t count() {
38 static uint64_t increments() {
41 static uint64_t decrements() {
42 return increments()-count();
46 static std::atomic<uint64_t> &_count() {
47 static std::atomic<uint64_t> c;
50 static std::atomic<uint64_t> &_increments() {
51 static std::atomic<uint64_t> i;