diff options
Diffstat (limited to 'node/AtomicCounter.hpp')
| -rw-r--r-- | node/AtomicCounter.hpp | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/node/AtomicCounter.hpp b/node/AtomicCounter.hpp index a0f29baa..a42a18d4 100644 --- a/node/AtomicCounter.hpp +++ b/node/AtomicCounter.hpp @@ -1,6 +1,6 @@ /* * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/ + * Copyright (C) 2011-2018 ZeroTier, Inc. https://www.zerotier.com/ * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -14,13 +14,20 @@ * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * -- + * + * You can be released from the requirements of the license by purchasing + * a commercial license. Buying such a license is mandatory as soon as you + * develop commercial closed-source software that incorporates or links + * directly against ZeroTier software without disclosing the source code + * of your own application. */ #ifndef ZT_ATOMICCOUNTER_HPP #define ZT_ATOMICCOUNTER_HPP #include "Constants.hpp" -#include "NonCopyable.hpp" #ifndef __GNUC__ #include <atomic> @@ -31,12 +38,18 @@ namespace ZeroTier { /** * Simple atomic counter supporting increment and decrement */ -class AtomicCounter : NonCopyable +class AtomicCounter { public: - AtomicCounter() + AtomicCounter() { _v = 0; } + + inline int load() const { - _v = 0; +#ifdef __GNUC__ + return __sync_or_and_fetch(const_cast<int *>(&_v),0); +#else + return _v.load(); +#endif } inline int operator++() @@ -58,6 +71,9 @@ public: } private: + AtomicCounter(const AtomicCounter &) {} + const AtomicCounter &operator=(const AtomicCounter &) { return *this; } + #ifdef __GNUC__ int _v; #else |