53 lines
1.0 KiB
Go
53 lines
1.0 KiB
Go
package dbUtils
|
|
|
|
import "sync/atomic"
|
|
|
|
type ICounter[i int32 | int64] interface {
|
|
Set(new i) (old i)
|
|
Add(delta i) (val i)
|
|
Get() (val i)
|
|
}
|
|
|
|
// 32 bit int counter implementation of ICounter
|
|
type Counter32 struct {
|
|
val int32
|
|
}
|
|
|
|
// 32 bit int counter implementation of ICounter
|
|
func NewCounter32(initVal int32) ICounter[int32] {
|
|
return &Counter32{val: initVal}
|
|
}
|
|
|
|
func (c *Counter32) Set(new int32) (old int32) {
|
|
return atomic.SwapInt32(&c.val, new)
|
|
}
|
|
|
|
func (c *Counter32) Add(delta int32) (val int32) {
|
|
return atomic.AddInt32(&c.val, delta)
|
|
}
|
|
|
|
func (c *Counter32) Get() (val int32) {
|
|
return atomic.LoadInt32(&c.val)
|
|
}
|
|
|
|
// 64 bit int counter implementation of ICounter
|
|
type Counter64 struct {
|
|
val int64
|
|
}
|
|
|
|
func NewCounter64(initVal int64) ICounter[int64] {
|
|
return &Counter64{val: initVal}
|
|
}
|
|
|
|
func (c *Counter64) Set(new int64) (old int64) {
|
|
return atomic.SwapInt64(&c.val, new)
|
|
}
|
|
|
|
func (c *Counter64) Add(delta int64) (val int64) {
|
|
return atomic.AddInt64(&c.val, delta)
|
|
}
|
|
|
|
func (c *Counter64) Get() (val int64) {
|
|
return atomic.LoadInt64(&c.val)
|
|
}
|