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77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright 2018 gf Author(https://github.com/gogf/gf). 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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"github.com/gogf/gf/util/gconv"
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"strconv"
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"sync/atomic"
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)
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// Int64 is a struct for concurrent-safe operation for type int64.
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type Int64 struct {
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value int64
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}
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// NewInt64 creates and returns a concurrent-safe object for int64 type,
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// with given initial value <value>.
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func NewInt64(value ...int64) *Int64 {
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if len(value) > 0 {
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return &Int64{
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value: value[0],
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}
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}
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return &Int64{}
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}
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// Clone clones and returns a new concurrent-safe object for int64 type.
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func (v *Int64) Clone() *Int64 {
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return NewInt64(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 *Int64) Set(value int64) (old int64) {
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return atomic.SwapInt64(&v.value, value)
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}
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// Val atomically loads and returns t.value.
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func (v *Int64) Val() int64 {
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return atomic.LoadInt64(&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 *Int64) Add(delta int64) (new int64) {
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return atomic.AddInt64(&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 *Int64) Cas(old, new int64) (swapped bool) {
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return atomic.CompareAndSwapInt64(&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 *Int64) String() string {
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return strconv.FormatInt(v.Val(), 10)
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}
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// MarshalJSON implements the interface MarshalJSON for json.Marshal.
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func (v *Int64) MarshalJSON() ([]byte, error) {
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return gconv.UnsafeStrToBytes(strconv.FormatInt(v.Val(), 10)), nil
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}
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// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
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func (v *Int64) UnmarshalJSON(b []byte) error {
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v.Set(gconv.Int64(gconv.UnsafeBytesToStr(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 *Int64) UnmarshalValue(value interface{}) error {
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v.Set(gconv.Int64(value))
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return nil
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}
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