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feat: add utils.SyncMap with genericType key and value to replace val…
…ues control by mutex.
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xufeixiang
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Jul 2, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,100 @@ | ||
| package utils | ||
|
|
||
| import "sync" | ||
| import ( | ||
| json "github.com/json-iterator/go" | ||
| "sync" | ||
| ) | ||
|
|
||
| // LoadFromSyncMap 根据范型转换sync.Map的value | ||
| // 解决sync.Map返回的值没有具体类型的问题 | ||
| func LoadFromSyncMap[T any](syncMap *sync.Map, key string) (v T, ok bool) { | ||
| if syncMap == nil { | ||
| type SyncMap[K comparable, V any] struct { | ||
| sync.Map | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) MarshalJSON() ([]byte, error) { | ||
| if s == nil { | ||
| return nil, nil | ||
| } | ||
|
|
||
| return json.Marshal(s.ToMap()) | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) UnmarshalJSON(data []byte) error { | ||
| dataMap := make(map[K]V) | ||
| if err := json.Unmarshal(data, &dataMap); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| *s = SyncMap[K, V]{} | ||
| for k, v := range dataMap { | ||
| s.Map.Store(k, v) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) Load(key K) (v V, ok bool) { | ||
| data, ok := s.Map.Load(key) | ||
| if !ok { | ||
| return | ||
| } | ||
|
|
||
| data, ok := syncMap.Load(key) | ||
| v, ok = data.(V) | ||
| return | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) LoadOrStore(key K, value V) (v V, ok bool) { | ||
| data, ok := s.Map.LoadOrStore(key, value) | ||
| if !ok { | ||
| return | ||
| } | ||
|
|
||
| v, ok = data.(T) | ||
| v, ok = data.(V) | ||
| return | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) Store(key K, value V) { | ||
| s.Map.Store(key, value) | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) Range(f func(key K, value V) bool) { | ||
| s.Map.Range(func(key, value any) bool { | ||
| keyStr, keyOk := key.(K) | ||
| valObj, valOk := value.(V) | ||
| if !keyOk || !valOk { | ||
| return false | ||
| } | ||
| return f(keyStr, valObj) | ||
| }) | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) ToMap() (dataMap map[K]V) { | ||
| dataMap = make(map[K]V) | ||
| s.Range(func(key K, value V) bool { | ||
| dataMap[key] = value | ||
| return true | ||
| }) | ||
| return | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) Keys() (keys []K) { | ||
| keys = make([]K, 0) | ||
| s.Range(func(key K, _ V) bool { | ||
| keys = append(keys, key) | ||
| return true | ||
| }) | ||
| return | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) FirstValue() (v V) { | ||
| s.Range(func(_ K, value V) bool { | ||
| v = value | ||
| return false | ||
| }) | ||
| return | ||
| } | ||
|
|
||
| func (s *SyncMap[K, V]) Clear() (keys []K) { | ||
| s.Range(func(key K, _ V) bool { | ||
| s.Map.Delete(key) | ||
| return true | ||
| }) | ||
| return | ||
| } |
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