forgejo/vendor/go.uber.org/atomic/bool.go
6543 fae07cbc8f
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81 lines
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Go
Vendored

// @generated Code generated by gen-atomicwrapper.
// Copyright (c) 2020-2021 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package atomic
import (
"encoding/json"
)
// Bool is an atomic type-safe wrapper for bool values.
type Bool struct {
_ nocmp // disallow non-atomic comparison
v Uint32
}
var _zeroBool bool
// NewBool creates a new Bool.
func NewBool(v bool) *Bool {
x := &Bool{}
if v != _zeroBool {
x.Store(v)
}
return x
}
// Load atomically loads the wrapped bool.
func (x *Bool) Load() bool {
return truthy(x.v.Load())
}
// Store atomically stores the passed bool.
func (x *Bool) Store(v bool) {
x.v.Store(boolToInt(v))
}
// CAS is an atomic compare-and-swap for bool values.
func (x *Bool) CAS(o, n bool) bool {
return x.v.CAS(boolToInt(o), boolToInt(n))
}
// Swap atomically stores the given bool and returns the old
// value.
func (x *Bool) Swap(o bool) bool {
return truthy(x.v.Swap(boolToInt(o)))
}
// MarshalJSON encodes the wrapped bool into JSON.
func (x *Bool) MarshalJSON() ([]byte, error) {
return json.Marshal(x.Load())
}
// UnmarshalJSON decodes a bool from JSON.
func (x *Bool) UnmarshalJSON(b []byte) error {
var v bool
if err := json.Unmarshal(b, &v); err != nil {
return err
}
x.Store(v)
return nil
}