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Copy pathuint32.go
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76 lines (63 loc) · 2.14 KB
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// 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"
)
// Uint32 is a struct for concurrent-safe operation for type uint32.
type Uint32 struct {
value uint32
}
// NewUint32 creates and returns a concurrent-safe object for uint32 type,
// with given initial value <value>.
func NewUint32(value ...uint32) *Uint32 {
if len(value) > 0 {
return &Uint32{
value: value[0],
}
}
return &Uint32{}
}
// Clone clones and returns a new concurrent-safe object for uint32 type.
func (v *Uint32) Clone() *Uint32 {
return NewUint32(v.Val())
}
// Set atomically stores <value> into t.value and returns the previous value of t.value.
func (v *Uint32) Set(value uint32) (old uint32) {
return atomic.SwapUint32(&v.value, value)
}
// Val atomically loads and returns t.value.
func (v *Uint32) Val() uint32 {
return atomic.LoadUint32(&v.value)
}
// Add atomically adds <delta> to t.value and returns the new value.
func (v *Uint32) Add(delta uint32) (new uint32) {
return atomic.AddUint32(&v.value, delta)
}
// Cas executes the compare-and-swap operation for value.
func (v *Uint32) Cas(old, new uint32) (swapped bool) {
return atomic.CompareAndSwapUint32(&v.value, old, new)
}
// String implements String interface for string printing.
func (v *Uint32) String() string {
return strconv.FormatUint(uint64(v.Val()), 10)
}
// MarshalJSON implements the interface MarshalJSON for json.Marshal.
func (v *Uint32) MarshalJSON() ([]byte, error) {
return gconv.UnsafeStrToBytes(strconv.FormatUint(uint64(v.Val()), 10)), nil
}
// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
func (v *Uint32) UnmarshalJSON(b []byte) error {
v.Set(gconv.Uint32(gconv.UnsafeBytesToStr(b)))
return nil
}
// UnmarshalValue is an interface implement which sets any type of value for <v>.
func (v *Uint32) UnmarshalValue(value interface{}) error {
v.Set(gconv.Uint32(value))
return nil
}