mirror of https://github.com/ledisdb/ledisdb.git
147 lines
3.2 KiB
Go
147 lines
3.2 KiB
Go
// Copyright 2013, Google Inc. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package sync2
|
|
|
|
import (
|
|
"sync"
|
|
"sync/atomic"
|
|
"time"
|
|
)
|
|
|
|
type AtomicInt32 int32
|
|
|
|
func (i *AtomicInt32) Add(n int32) int32 {
|
|
return atomic.AddInt32((*int32)(i), n)
|
|
}
|
|
|
|
func (i *AtomicInt32) Set(n int32) {
|
|
atomic.StoreInt32((*int32)(i), n)
|
|
}
|
|
|
|
func (i *AtomicInt32) Get() int32 {
|
|
return atomic.LoadInt32((*int32)(i))
|
|
}
|
|
|
|
func (i *AtomicInt32) CompareAndSwap(oldval, newval int32) (swapped bool) {
|
|
return atomic.CompareAndSwapInt32((*int32)(i), oldval, newval)
|
|
}
|
|
|
|
type AtomicUint32 uint32
|
|
|
|
func (i *AtomicUint32) Add(n uint32) uint32 {
|
|
return atomic.AddUint32((*uint32)(i), n)
|
|
}
|
|
|
|
func (i *AtomicUint32) Set(n uint32) {
|
|
atomic.StoreUint32((*uint32)(i), n)
|
|
}
|
|
|
|
func (i *AtomicUint32) Get() uint32 {
|
|
return atomic.LoadUint32((*uint32)(i))
|
|
}
|
|
|
|
func (i *AtomicUint32) CompareAndSwap(oldval, newval uint32) (swapped bool) {
|
|
return atomic.CompareAndSwapUint32((*uint32)(i), oldval, newval)
|
|
}
|
|
|
|
type AtomicInt64 int64
|
|
|
|
func (i *AtomicInt64) Add(n int64) int64 {
|
|
return atomic.AddInt64((*int64)(i), n)
|
|
}
|
|
|
|
func (i *AtomicInt64) Set(n int64) {
|
|
atomic.StoreInt64((*int64)(i), n)
|
|
}
|
|
|
|
func (i *AtomicInt64) Get() int64 {
|
|
return atomic.LoadInt64((*int64)(i))
|
|
}
|
|
|
|
func (i *AtomicInt64) CompareAndSwap(oldval, newval int64) (swapped bool) {
|
|
return atomic.CompareAndSwapInt64((*int64)(i), oldval, newval)
|
|
}
|
|
|
|
type AtomicUint64 uint64
|
|
|
|
func (i *AtomicUint64) Add(n uint64) uint64 {
|
|
return atomic.AddUint64((*uint64)(i), n)
|
|
}
|
|
|
|
func (i *AtomicUint64) Set(n uint64) {
|
|
atomic.StoreUint64((*uint64)(i), n)
|
|
}
|
|
|
|
func (i *AtomicUint64) Get() uint64 {
|
|
return atomic.LoadUint64((*uint64)(i))
|
|
}
|
|
|
|
func (i *AtomicUint64) CompareAndSwap(oldval, newval uint64) (swapped bool) {
|
|
return atomic.CompareAndSwapUint64((*uint64)(i), oldval, newval)
|
|
}
|
|
|
|
type AtomicDuration int64
|
|
|
|
func (d *AtomicDuration) Add(duration time.Duration) time.Duration {
|
|
return time.Duration(atomic.AddInt64((*int64)(d), int64(duration)))
|
|
}
|
|
|
|
func (d *AtomicDuration) Set(duration time.Duration) {
|
|
atomic.StoreInt64((*int64)(d), int64(duration))
|
|
}
|
|
|
|
func (d *AtomicDuration) Get() time.Duration {
|
|
return time.Duration(atomic.LoadInt64((*int64)(d)))
|
|
}
|
|
|
|
func (d *AtomicDuration) CompareAndSwap(oldval, newval time.Duration) (swapped bool) {
|
|
return atomic.CompareAndSwapInt64((*int64)(d), int64(oldval), int64(newval))
|
|
}
|
|
|
|
// AtomicString gives you atomic-style APIs for string, but
|
|
// it's only a convenience wrapper that uses a mutex. So, it's
|
|
// not as efficient as the rest of the atomic types.
|
|
type AtomicString struct {
|
|
mu sync.Mutex
|
|
str string
|
|
}
|
|
|
|
func (s *AtomicString) Set(str string) {
|
|
s.mu.Lock()
|
|
s.str = str
|
|
s.mu.Unlock()
|
|
}
|
|
|
|
func (s *AtomicString) Get() string {
|
|
s.mu.Lock()
|
|
str := s.str
|
|
s.mu.Unlock()
|
|
return str
|
|
}
|
|
|
|
func (s *AtomicString) CompareAndSwap(oldval, newval string) (swapped bool) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
if s.str == oldval {
|
|
s.str = newval
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
type AtomicBool int32
|
|
|
|
func (b *AtomicBool) Set(v bool) {
|
|
if v {
|
|
atomic.StoreInt32((*int32)(b), 1)
|
|
} else {
|
|
atomic.StoreInt32((*int32)(b), 0)
|
|
}
|
|
}
|
|
|
|
func (b *AtomicBool) Get() bool {
|
|
return atomic.LoadInt32((*int32)(b)) == 1
|
|
}
|