47 lines
768 B
Go
47 lines
768 B
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package atomic
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func loadUint64(addr *uint64) (val uint64) {
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for {
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val = *addr
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if CompareAndSwapUint64(addr, val, val) {
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break
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}
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}
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return
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}
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func storeUint64(addr *uint64, val uint64) {
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for {
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old := *addr
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if CompareAndSwapUint64(addr, old, val) {
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break
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}
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}
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return
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}
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func addUint64(val *uint64, delta uint64) (new uint64) {
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for {
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old := *val
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new = old + delta
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if CompareAndSwapUint64(val, old, new) {
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break
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}
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}
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return
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}
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func swapUint64(addr *uint64, new uint64) (old uint64) {
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for {
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old = *addr
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if CompareAndSwapUint64(addr, old, new) {
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break
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}
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}
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return
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}
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