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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
4 | * Ceph - scalable distributed file system | |
5 | * | |
6 | * Copyright (C) 2010 Dreamhost | |
7 | * | |
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. | |
12 | * | |
13 | */ | |
14 | ||
15 | #ifndef CEPH_LIKELY_DOT_H | |
16 | #define CEPH_LIKELY_DOT_H | |
17 | ||
18 | /* | |
19 | * Likely / Unlikely macros | |
20 | */ | |
11fdf7f2 | 21 | #ifndef likely |
7c673cae | 22 | #define likely(x) __builtin_expect((x),1) |
11fdf7f2 TL |
23 | #endif |
24 | #ifndef unlikely | |
7c673cae | 25 | #define unlikely(x) __builtin_expect((x),0) |
11fdf7f2 TL |
26 | #endif |
27 | #ifndef expect | |
28 | #define expect(x, hint) __builtin_expect((x),(hint)) | |
29 | #endif | |
7c673cae FG |
30 | |
31 | #endif |