mirror of
https://github.com/cubefs/cubefs.git
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43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Copyright 2023 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 (
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"math"
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"sync/atomic"
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)
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type Float64 struct {
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val uint64
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}
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func (f *Float64) Load() float64 {
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return math.Float64frombits(atomic.LoadUint64(&f.val))
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}
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func (f *Float64) Store(val float64) {
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atomic.StoreUint64(&f.val, math.Float64bits(val))
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}
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func (f *Float64) CompareAndSwap(old float64, new float64) (swaped bool) {
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swaped = atomic.CompareAndSwapUint64(&f.val, math.Float64bits(old), math.Float64bits(new))
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return
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}
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func (f *Float64) Swap(new float64) (old float64) {
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old = math.Float64frombits(atomic.SwapUint64(&f.val, math.Float64bits(new)))
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return
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}
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