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- // @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"
- "time"
- )
- // Duration is an atomic type-safe wrapper for time.Duration values.
- type Duration struct {
- _ nocmp // disallow non-atomic comparison
- v Int64
- }
- var _zeroDuration time.Duration
- // NewDuration creates a new Duration.
- func NewDuration(val time.Duration) *Duration {
- x := &Duration{}
- if val != _zeroDuration {
- x.Store(val)
- }
- return x
- }
- // Load atomically loads the wrapped time.Duration.
- func (x *Duration) Load() time.Duration {
- return time.Duration(x.v.Load())
- }
- // Store atomically stores the passed time.Duration.
- func (x *Duration) Store(val time.Duration) {
- x.v.Store(int64(val))
- }
- // CAS is an atomic compare-and-swap for time.Duration values.
- func (x *Duration) CAS(old, new time.Duration) (swapped bool) {
- return x.v.CAS(int64(old), int64(new))
- }
- // Swap atomically stores the given time.Duration and returns the old
- // value.
- func (x *Duration) Swap(val time.Duration) (old time.Duration) {
- return time.Duration(x.v.Swap(int64(val)))
- }
- // MarshalJSON encodes the wrapped time.Duration into JSON.
- func (x *Duration) MarshalJSON() ([]byte, error) {
- return json.Marshal(x.Load())
- }
- // UnmarshalJSON decodes a time.Duration from JSON.
- func (x *Duration) UnmarshalJSON(b []byte) error {
- var v time.Duration
- if err := json.Unmarshal(b, &v); err != nil {
- return err
- }
- x.Store(v)
- return nil
- }
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