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