mirror of https://github.com/tidwall/tile38.git
33 lines
609 B
Go
33 lines
609 B
Go
package server
|
|
|
|
import (
|
|
"sync/atomic"
|
|
)
|
|
|
|
type aint struct{ v uintptr }
|
|
|
|
func (a *aint) add(d int) int {
|
|
if d < 0 {
|
|
return int(atomic.AddUintptr(&a.v, ^uintptr((d*-1)-1)))
|
|
}
|
|
return int(atomic.AddUintptr(&a.v, uintptr(d)))
|
|
}
|
|
func (a *aint) get() int {
|
|
return int(atomic.LoadUintptr(&a.v))
|
|
}
|
|
func (a *aint) set(i int) int {
|
|
return int(atomic.SwapUintptr(&a.v, uintptr(i)))
|
|
}
|
|
|
|
type abool struct{ v uint32 }
|
|
|
|
func (a *abool) on() bool {
|
|
return atomic.LoadUint32(&a.v) != 0
|
|
}
|
|
func (a *abool) set(t bool) bool {
|
|
if t {
|
|
return atomic.SwapUint32(&a.v, 1) != 0
|
|
}
|
|
return atomic.SwapUint32(&a.v, 0) != 0
|
|
}
|