mirror of
https://github.com/nabbar/golib.git
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a5845082c9
- new package to simplify usage of atomic.Value & sync map by using generic struct/interface with cast - add generic function to cast model
109 lines
2.6 KiB
Go
109 lines
2.6 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2024 Nicolas JUHEL
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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 all
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* 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 THE
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* SOFTWARE.
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*
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*
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*/
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package atomic
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import (
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"sync"
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"sync/atomic"
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)
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type Value[T any] interface {
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SetDefaultLoad(def T)
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SetDefaultStore(def T)
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Load() (val T)
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Store(val T)
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Swap(new T) (old T)
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CompareAndSwap(old, new T) (swapped bool)
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}
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type Map[K comparable] interface {
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Load(key K) (value any, ok bool)
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Store(key K, value any)
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LoadOrStore(key K, value any) (actual any, loaded bool)
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LoadAndDelete(key K) (value any, loaded bool)
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Delete(key K)
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Swap(key K, value any) (previous any, loaded bool)
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CompareAndSwap(key K, old, new any) bool
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CompareAndDelete(key K, old any) (deleted bool)
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Range(f func(key K, value any) bool)
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}
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type MapTyped[K comparable, V any] interface {
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Load(key K) (value V, ok bool)
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Store(key K, value V)
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LoadOrStore(key K, value V) (actual V, loaded bool)
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LoadAndDelete(key K) (value V, loaded bool)
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Delete(key K)
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Swap(key K, value V) (previous V, loaded bool)
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CompareAndSwap(key K, old, new V) bool
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CompareAndDelete(key K, old V) (deleted bool)
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Range(f func(key K, value V) bool)
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}
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func NewValue[T any]() Value[T] {
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var (
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tmp1 T
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tmp2 T
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)
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return NewValueDefault[T](tmp1, tmp2)
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}
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func NewValueDefault[T any](load, store T) Value[T] {
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o := &val[T]{
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av: new(atomic.Value),
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dl: new(atomic.Value),
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ds: new(atomic.Value),
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}
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o.SetDefaultLoad(load)
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o.SetDefaultStore(store)
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return o
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}
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func NewMapAny[K comparable]() Map[K] {
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return &ma[K]{
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m: sync.Map{},
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}
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}
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func NewMapTyped[K comparable, V any]() MapTyped[K, V] {
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return &mt[K, V]{
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m: NewMapAny[K](),
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}
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}
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