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86 lines
2.2 KiB
86 lines
2.2 KiB
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gtype
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import (
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"strconv"
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"sync/atomic"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// Int32 is a struct for concurrent-safe operation for type int32.
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type Int32 struct {
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value int32
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}
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// NewInt32 creates and returns a concurrent-safe object for int32 type,
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// with given initial value `value`.
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func NewInt32(value ...int32) *Int32 {
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if len(value) > 0 {
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return &Int32{
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value: value[0],
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}
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}
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return &Int32{}
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}
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// Clone clones and returns a new concurrent-safe object for int32 type.
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func (v *Int32) Clone() *Int32 {
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return NewInt32(v.Val())
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}
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// Set atomically stores `value` into t.value and returns the previous value of t.value.
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func (v *Int32) Set(value int32) (old int32) {
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return atomic.SwapInt32(&v.value, value)
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}
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// Val atomically loads and returns t.value.
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func (v *Int32) Val() int32 {
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return atomic.LoadInt32(&v.value)
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}
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// Add atomically adds `delta` to t.value and returns the new value.
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func (v *Int32) Add(delta int32) (new int32) {
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return atomic.AddInt32(&v.value, delta)
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}
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// Cas executes the compare-and-swap operation for value.
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func (v *Int32) Cas(old, new int32) (swapped bool) {
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return atomic.CompareAndSwapInt32(&v.value, old, new)
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}
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// String implements String interface for string printing.
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func (v *Int32) String() string {
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return strconv.Itoa(int(v.Val()))
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}
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// MarshalJSON implements the interface MarshalJSON for json.Marshal.
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func (v Int32) MarshalJSON() ([]byte, error) {
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return []byte(strconv.Itoa(int(v.Val()))), nil
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}
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// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
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func (v *Int32) UnmarshalJSON(b []byte) error {
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v.Set(gconv.Int32(string(b)))
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return nil
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}
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// UnmarshalValue is an interface implement which sets any type of value for `v`.
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func (v *Int32) UnmarshalValue(value interface{}) error {
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v.Set(gconv.Int32(value))
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return nil
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}
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// DeepCopy implements interface for deep copy of current type.
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func (v *Int32) DeepCopy() interface{} {
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if v == nil {
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return nil
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}
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return NewInt32(v.Val())
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}
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