// OpenVPN -- An application to securely tunnel IP networks // over a single port, with support for SSL/TLS-based // session authentication and key exchange, // packet encryption, packet authentication, and // packet compression. // // Copyright (C) 2012-2020 OpenVPN Inc. // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License Version 3 // as published by the Free Software Foundation. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with this program in the COPYING file. // If not, see <http://www.gnu.org/licenses/>. #ifndef OPENVPN_COMMON_LIKELY_H #define OPENVPN_COMMON_LIKELY_H // Branch prediction hints (these make a difference on ARM) #if !defined(likely) && !defined(unlikely) #if defined(__GNUC__) # define likely(x) __builtin_expect((x),1) # define unlikely(x) __builtin_expect((x),0) #else # define likely(x) (x) # define unlikely(x) (x) #endif #endif #endif // OPENVPN_COMMON_LIKELY_H