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81 lines
2.3 KiB
81 lines
2.3 KiB
// @generated Code generated by gen-atomicwrapper. |
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// Copyright (c) 2020-2021 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(val bool) *Bool { |
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x := &Bool{} |
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if val != _zeroBool { |
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x.Store(val) |
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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(val bool) { |
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x.v.Store(boolToInt(val)) |
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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(old, new bool) (swapped bool) { |
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return x.v.CAS(boolToInt(old), boolToInt(new)) |
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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(val bool) (old bool) { |
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return truthy(x.v.Swap(boolToInt(val))) |
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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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