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103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
2 years ago
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// @generated Code generated by gen-atomicint.
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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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"strconv"
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"sync/atomic"
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)
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// Int32 is an atomic wrapper around int32.
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type Int32 struct {
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_ nocmp // disallow non-atomic comparison
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v int32
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}
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// NewInt32 creates a new Int32.
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func NewInt32(val int32) *Int32 {
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return &Int32{v: val}
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}
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// Load atomically loads the wrapped value.
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func (i *Int32) Load() int32 {
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return atomic.LoadInt32(&i.v)
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}
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// Add atomically adds to the wrapped int32 and returns the new value.
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func (i *Int32) Add(delta int32) int32 {
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return atomic.AddInt32(&i.v, delta)
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}
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// Sub atomically subtracts from the wrapped int32 and returns the new value.
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func (i *Int32) Sub(delta int32) int32 {
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return atomic.AddInt32(&i.v, -delta)
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}
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// Inc atomically increments the wrapped int32 and returns the new value.
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func (i *Int32) Inc() int32 {
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return i.Add(1)
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}
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// Dec atomically decrements the wrapped int32 and returns the new value.
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func (i *Int32) Dec() int32 {
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return i.Sub(1)
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}
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// CAS is an atomic compare-and-swap.
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func (i *Int32) CAS(old, new int32) (swapped bool) {
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return atomic.CompareAndSwapInt32(&i.v, old, new)
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}
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// Store atomically stores the passed value.
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func (i *Int32) Store(val int32) {
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atomic.StoreInt32(&i.v, val)
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}
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// Swap atomically swaps the wrapped int32 and returns the old value.
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func (i *Int32) Swap(val int32) (old int32) {
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return atomic.SwapInt32(&i.v, val)
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}
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// MarshalJSON encodes the wrapped int32 into JSON.
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func (i *Int32) MarshalJSON() ([]byte, error) {
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return json.Marshal(i.Load())
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}
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// UnmarshalJSON decodes JSON into the wrapped int32.
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func (i *Int32) UnmarshalJSON(b []byte) error {
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var v int32
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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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i.Store(v)
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return nil
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}
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// String encodes the wrapped value as a string.
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func (i *Int32) String() string {
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v := i.Load()
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return strconv.FormatInt(int64(v), 10)
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}
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