mirror of
https://github.com/cubefs/cubefs.git
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57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
// Copyright 2024 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package atomicutil
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import "sync/atomic"
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type Bool struct {
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val uint32
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}
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func (b *Bool) Load() (v bool) {
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v = atomic.LoadUint32(&b.val) == 1
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return
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}
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func (b *Bool) Store(v bool) {
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val := uint32(0)
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if v {
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val = 1
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}
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atomic.StoreUint32(&b.val, val)
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}
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func (b *Bool) CompareAndSwap(old bool, newVal bool) (swaped bool) {
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oldVal := uint32(0)
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if old {
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oldVal = 1
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}
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val := uint32(0)
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if newVal {
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val = 1
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}
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swaped = atomic.CompareAndSwapUint32(&b.val, oldVal, val)
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return
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}
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func (b *Bool) Swap(new bool) (old bool) {
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tmp := uint32(0)
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if new {
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tmp = 1
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}
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old = atomic.SwapUint32(&b.val, tmp) == 1
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return
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}
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