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41 lines
771 B
Go
41 lines
771 B
Go
package syncx
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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 AtomicFloat64 uint64
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func NewAtomicFloat64() *AtomicFloat64 {
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return new(AtomicFloat64)
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}
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func ForAtomicFloat64(val float64) *AtomicFloat64 {
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f := NewAtomicFloat64()
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f.Set(val)
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return f
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}
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func (f *AtomicFloat64) Add(val float64) float64 {
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for {
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old := f.Load()
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nv := old + val
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if f.CompareAndSwap(old, nv) {
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return nv
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}
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}
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}
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func (f *AtomicFloat64) CompareAndSwap(old, val float64) bool {
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return atomic.CompareAndSwapUint64((*uint64)(f), math.Float64bits(old), math.Float64bits(val))
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}
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func (f *AtomicFloat64) Load() float64 {
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return math.Float64frombits(atomic.LoadUint64((*uint64)(f)))
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}
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func (f *AtomicFloat64) Set(val float64) {
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atomic.StoreUint64((*uint64)(f), math.Float64bits(val))
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}
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