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mem.go
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mem.go
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package pidb
import "sync"
type Mem struct {
sync.RWMutex
data map[string]interface{}
}
// New is initialize memory engine
func (m *Mem) New() error {
m.data = make(map[string]interface{})
return nil
}
// Set is set key and value to memory engine
func (m *Mem) Set(key string, value []byte) error {
m.Lock()
defer m.Unlock()
m.data[key] = value
return nil
}
// Get is get value from memory engine
func (m *Mem) Get(key string) ([]byte, error) {
m.RLock()
defer m.RUnlock()
if v, ok := m.data[key]; ok {
return v.([]byte), nil
}
return nil, nil
}
// Del is delete key from memory engine
func (m *Mem) Del(key string) error {
m.Lock()
defer m.Unlock()
delete(m.data, key)
return nil
}
// Exists is check key exists in memory engine
func (m *Mem) Exists(key string) (bool, error) {
m.RLock()
defer m.RUnlock()
_, ok := m.data[key]
return ok, nil
}