import ceph quincy 17.2.4

[ceph.git] / ceph / src / common / likely.h

// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
 * Ceph - scalable distributed file system
 *
 * Copyright (C) 2010 Dreamhost
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software
 * Foundation.  See file COPYING.
 *
 */

#ifndef CEPH_LIKELY_DOT_H
#define CEPH_LIKELY_DOT_H

/*
 * Likely / Unlikely macros
 */
#ifndef likely
#define likely(x)       __builtin_expect((x),1)
#endif
#ifndef unlikely
#define unlikely(x)     __builtin_expect((x),0)
#endif
#ifndef expect
#define expect(x, hint) __builtin_expect((x),(hint))
#endif

#endif