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ntool/nsys/atomic/atomic_duration.go

37 lines
934 B
Go

package atomic
import (
"sync/atomic"
"time"
)
// An AtomicDuration is an implementation of atomic duration.
type AtomicDuration int64
// NewAtomicDuration returns an AtomicDuration.
func NewAtomicDuration() *AtomicDuration {
return new(AtomicDuration)
}
// ForAtomicDuration returns an AtomicDuration with given value.
func ForAtomicDuration(val time.Duration) *AtomicDuration {
d := NewAtomicDuration()
d.Set(val)
return d
}
// CompareAndSwap compares current value with old, if equals, set the value to val.
func (d *AtomicDuration) CompareAndSwap(old, val time.Duration) bool {
return atomic.CompareAndSwapInt64((*int64)(d), int64(old), int64(val))
}
// Load loads the current duration.
func (d *AtomicDuration) Load() time.Duration {
return time.Duration(atomic.LoadInt64((*int64)(d)))
}
// Set sets the value to val.
func (d *AtomicDuration) Set(val time.Duration) {
atomic.StoreInt64((*int64)(d), int64(val))
}