You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.3 KiB
77 lines
2.3 KiB
// @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" |
|
"math" |
|
) |
|
|
|
// Float64 is an atomic type-safe wrapper for float64 values. |
|
type Float64 struct { |
|
_ nocmp // disallow non-atomic comparison |
|
|
|
v Uint64 |
|
} |
|
|
|
var _zeroFloat64 float64 |
|
|
|
// NewFloat64 creates a new Float64. |
|
func NewFloat64(val float64) *Float64 { |
|
x := &Float64{} |
|
if val != _zeroFloat64 { |
|
x.Store(val) |
|
} |
|
return x |
|
} |
|
|
|
// Load atomically loads the wrapped float64. |
|
func (x *Float64) Load() float64 { |
|
return math.Float64frombits(x.v.Load()) |
|
} |
|
|
|
// Store atomically stores the passed float64. |
|
func (x *Float64) Store(val float64) { |
|
x.v.Store(math.Float64bits(val)) |
|
} |
|
|
|
// Swap atomically stores the given float64 and returns the old |
|
// value. |
|
func (x *Float64) Swap(val float64) (old float64) { |
|
return math.Float64frombits(x.v.Swap(math.Float64bits(val))) |
|
} |
|
|
|
// MarshalJSON encodes the wrapped float64 into JSON. |
|
func (x *Float64) MarshalJSON() ([]byte, error) { |
|
return json.Marshal(x.Load()) |
|
} |
|
|
|
// UnmarshalJSON decodes a float64 from JSON. |
|
func (x *Float64) UnmarshalJSON(b []byte) error { |
|
var v float64 |
|
if err := json.Unmarshal(b, &v); err != nil { |
|
return err |
|
} |
|
x.Store(v) |
|
return nil |
|
}
|
|
|