1 // @generated Code generated by gen-atomicint. 2 3 // Copyright (c) 2020-2023 Uber Technologies, Inc. 4 // 5 // Permission is hereby granted, free of charge, to any person obtaining a copy 6 // of this software and associated documentation files (the "Software"), to deal 7 // in the Software without restriction, including without limitation the rights 8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 // copies of the Software, and to permit persons to whom the Software is 10 // furnished to do so, subject to the following conditions: 11 // 12 // The above copyright notice and this permission notice shall be included in 13 // all copies or substantial portions of the Software. 14 // 15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 // THE SOFTWARE. 22 23 package atomic 24 25 import ( 26 "encoding/json" 27 "strconv" 28 "sync/atomic" 29 ) 30 31 // Int64 is an atomic wrapper around int64. 32 type Int64 struct { 33 _ nocmp // disallow non-atomic comparison 34 35 v int64 36 } 37 38 // NewInt64 creates a new Int64. 39 func NewInt64(val int64) *Int64 { 40 return &Int64{v: val} 41 } 42 43 // Load atomically loads the wrapped value. 44 func (i *Int64) Load() int64 { 45 return atomic.LoadInt64(&i.v) 46 } 47 48 // Add atomically adds to the wrapped int64 and returns the new value. 49 func (i *Int64) Add(delta int64) int64 { 50 return atomic.AddInt64(&i.v, delta) 51 } 52 53 // Sub atomically subtracts from the wrapped int64 and returns the new value. 54 func (i *Int64) Sub(delta int64) int64 { 55 return atomic.AddInt64(&i.v, -delta) 56 } 57 58 // Inc atomically increments the wrapped int64 and returns the new value. 59 func (i *Int64) Inc() int64 { 60 return i.Add(1) 61 } 62 63 // Dec atomically decrements the wrapped int64 and returns the new value. 64 func (i *Int64) Dec() int64 { 65 return i.Sub(1) 66 } 67 68 // CAS is an atomic compare-and-swap. 69 // 70 // Deprecated: Use CompareAndSwap. 71 func (i *Int64) CAS(old, new int64) (swapped bool) { 72 return i.CompareAndSwap(old, new) 73 } 74 75 // CompareAndSwap is an atomic compare-and-swap. 76 func (i *Int64) CompareAndSwap(old, new int64) (swapped bool) { 77 return atomic.CompareAndSwapInt64(&i.v, old, new) 78 } 79 80 // Store atomically stores the passed value. 81 func (i *Int64) Store(val int64) { 82 atomic.StoreInt64(&i.v, val) 83 } 84 85 // Swap atomically swaps the wrapped int64 and returns the old value. 86 func (i *Int64) Swap(val int64) (old int64) { 87 return atomic.SwapInt64(&i.v, val) 88 } 89 90 // MarshalJSON encodes the wrapped int64 into JSON. 91 func (i *Int64) MarshalJSON() ([]byte, error) { 92 return json.Marshal(i.Load()) 93 } 94 95 // UnmarshalJSON decodes JSON into the wrapped int64. 96 func (i *Int64) UnmarshalJSON(b []byte) error { 97 var v int64 98 if err := json.Unmarshal(b, &v); err != nil { 99 return err 100 } 101 i.Store(v) 102 return nil 103 } 104 105 // String encodes the wrapped value as a string. 106 func (i *Int64) String() string { 107 v := i.Load() 108 return strconv.FormatInt(int64(v), 10) 109 } 110