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- // @generated Code generated by gen-atomicint.
- // 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"
- "strconv"
- "sync/atomic"
- )
- // Int64 is an atomic wrapper around int64.
- type Int64 struct {
- _ nocmp // disallow non-atomic comparison
- v int64
- }
- // NewInt64 creates a new Int64.
- func NewInt64(val int64) *Int64 {
- return &Int64{v: val}
- }
- // Load atomically loads the wrapped value.
- func (i *Int64) Load() int64 {
- return atomic.LoadInt64(&i.v)
- }
- // Add atomically adds to the wrapped int64 and returns the new value.
- func (i *Int64) Add(delta int64) int64 {
- return atomic.AddInt64(&i.v, delta)
- }
- // Sub atomically subtracts from the wrapped int64 and returns the new value.
- func (i *Int64) Sub(delta int64) int64 {
- return atomic.AddInt64(&i.v, -delta)
- }
- // Inc atomically increments the wrapped int64 and returns the new value.
- func (i *Int64) Inc() int64 {
- return i.Add(1)
- }
- // Dec atomically decrements the wrapped int64 and returns the new value.
- func (i *Int64) Dec() int64 {
- return i.Sub(1)
- }
- // CAS is an atomic compare-and-swap.
- func (i *Int64) CAS(old, new int64) (swapped bool) {
- return atomic.CompareAndSwapInt64(&i.v, old, new)
- }
- // Store atomically stores the passed value.
- func (i *Int64) Store(val int64) {
- atomic.StoreInt64(&i.v, val)
- }
- // Swap atomically swaps the wrapped int64 and returns the old value.
- func (i *Int64) Swap(val int64) (old int64) {
- return atomic.SwapInt64(&i.v, val)
- }
- // MarshalJSON encodes the wrapped int64 into JSON.
- func (i *Int64) MarshalJSON() ([]byte, error) {
- return json.Marshal(i.Load())
- }
- // UnmarshalJSON decodes JSON into the wrapped int64.
- func (i *Int64) UnmarshalJSON(b []byte) error {
- var v int64
- if err := json.Unmarshal(b, &v); err != nil {
- return err
- }
- i.Store(v)
- return nil
- }
- // String encodes the wrapped value as a string.
- func (i *Int64) String() string {
- v := i.Load()
- return strconv.FormatInt(int64(v), 10)
- }
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