mirror of
https://github.com/OpenVPN/openvpn3.git
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37 lines
1.4 KiB
C++
37 lines
1.4 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2015 OpenVPN Technologies, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#ifndef OPENVPN_COMMON_LIKELY_H
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#define OPENVPN_COMMON_LIKELY_H
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// Branch prediction hints (these make a difference on ARM)
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#if !defined(likely) && !defined(unlikely)
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#if defined(__GNUC__)
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# define likely(x) __builtin_expect((x),1)
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# define unlikely(x) __builtin_expect((x),0)
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#else
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# define likely(x) (x)
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# define unlikely(x) (x)
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#endif
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#endif
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#endif // OPENVPN_COMMON_LIKELY_H
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