mirror of
https://gitee.com/johng/gf.git
synced 2024-12-04 21:28:22 +08:00
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
|
|
//
|
|
// This Source Code Form is subject to the terms of the MIT License.
|
|
// If a copy of the MIT was not distributed with this file,
|
|
// You can obtain one at https://github.com/gogf/gf.
|
|
|
|
package gtype
|
|
|
|
import (
|
|
"github.com/gogf/gf/util/gconv"
|
|
"strconv"
|
|
"sync/atomic"
|
|
)
|
|
|
|
// Byte is a struct for concurrent-safe operation for type byte.
|
|
type Byte struct {
|
|
value int32
|
|
}
|
|
|
|
// NewByte creates and returns a concurrent-safe object for byte type,
|
|
// with given initial value <value>.
|
|
func NewByte(value ...byte) *Byte {
|
|
if len(value) > 0 {
|
|
return &Byte{
|
|
value: int32(value[0]),
|
|
}
|
|
}
|
|
return &Byte{}
|
|
}
|
|
|
|
// Clone clones and returns a new concurrent-safe object for byte type.
|
|
func (v *Byte) Clone() *Byte {
|
|
return NewByte(v.Val())
|
|
}
|
|
|
|
// Set atomically stores <value> into t.value and returns the previous value of t.value.
|
|
func (v *Byte) Set(value byte) (old byte) {
|
|
return byte(atomic.SwapInt32(&v.value, int32(value)))
|
|
}
|
|
|
|
// Val atomically loads and returns t.value.
|
|
func (v *Byte) Val() byte {
|
|
return byte(atomic.LoadInt32(&v.value))
|
|
}
|
|
|
|
// Add atomically adds <delta> to t.value and returns the new value.
|
|
func (v *Byte) Add(delta byte) (new byte) {
|
|
return byte(atomic.AddInt32(&v.value, int32(delta)))
|
|
}
|
|
|
|
// Cas executes the compare-and-swap operation for value.
|
|
func (v *Byte) Cas(old, new byte) (swapped bool) {
|
|
return atomic.CompareAndSwapInt32(&v.value, int32(old), int32(new))
|
|
}
|
|
|
|
// String implements String interface for string printing.
|
|
func (v *Byte) String() string {
|
|
return strconv.FormatUint(uint64(v.Val()), 10)
|
|
}
|
|
|
|
// MarshalJSON implements the interface MarshalJSON for json.Marshal.
|
|
func (v *Byte) MarshalJSON() ([]byte, error) {
|
|
return gconv.UnsafeStrToBytes(strconv.FormatUint(uint64(v.Val()), 10)), nil
|
|
}
|
|
|
|
// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
|
|
func (v *Byte) UnmarshalJSON(b []byte) error {
|
|
v.Set(gconv.Uint8(gconv.UnsafeBytesToStr(b)))
|
|
return nil
|
|
}
|
|
|
|
// UnmarshalValue is an interface implement which sets any type of value for <v>.
|
|
func (v *Byte) UnmarshalValue(value interface{}) error {
|
|
v.Set(gconv.Byte(value))
|
|
return nil
|
|
}
|