54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#ifndef SYNC_H
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#define SYNC_H
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class sync {
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public:
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template <class T>
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static bool compare_and_swap(T *address,
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T oldValue, T newValue) {
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return __sync_bool_compare_and_swap(address, oldValue, newValue);
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}
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template <class T>
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static T increment(T *address) {
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return __sync_add_and_fetch(address, 1);
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}
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template <class T>
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static T decrement(T *address) {
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return __sync_sub_and_fetch(address, 1);
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}
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template <class T>
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static T increment(T &address) {
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return __sync_add_and_fetch(&address, 1);
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}
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template <class T>
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static T decrement(T &address) {
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return __sync_sub_and_fetch(&address, 1);
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}
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template <class T>
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static T read(T *address) {
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return __sync_add_and_fetch(address, 0);
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}
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template <class T>
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static T read(T &address) {
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return __sync_add_and_fetch(&address, 0);
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}
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};
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#endif /* SYNC_H */
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