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bytes.go
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/
bytes.go
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// Copyright 2018 gf Author(https://github.com/snail007/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/snail007/gf.
package gtype
import "sync/atomic"
type Bytes struct {
value atomic.Value
}
// NewBytes returns a concurrent-safe object for []byte type,
// with given initial value <value>.
func NewBytes(value ...[]byte) *Bytes {
t := &Bytes{}
if len(value) > 0 {
t.value.Store(value[0])
}
return t
}
// Clone clones and returns a new concurrent-safe object for []byte type.
func (v *Bytes) Clone() *Bytes {
return NewBytes(v.Val())
}
// Set atomically stores <value> into t.value and returns the previous value of t.value.
// Note: The parameter <value> cannot be nil.
func (v *Bytes) Set(value []byte) (old []byte) {
old = v.Val()
v.value.Store(value)
return
}
// Val atomically loads t.value.
func (v *Bytes) Val() []byte {
if s := v.value.Load(); s != nil {
return s.([]byte)
}
return nil
}