mirror of https://github.com/gofiber/fiber.git
93 lines
1.8 KiB
Go
93 lines
1.8 KiB
Go
// Package memory Is a slight copy of the memory storage, but far from the storage interface it can not only work with bytes
|
|
// but directly store any kind of data without having to encode it each time, which gives a huge speed advantage
|
|
package memory
|
|
|
|
import (
|
|
"sync"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/gofiber/utils/v2"
|
|
)
|
|
|
|
type Storage struct {
|
|
sync.RWMutex
|
|
data map[string]item // data
|
|
}
|
|
|
|
type item struct {
|
|
// max value is 4294967295 -> Sun Feb 07 2106 06:28:15 GMT+0000
|
|
e uint32 // exp
|
|
v interface{} // val
|
|
}
|
|
|
|
func New() *Storage {
|
|
store := &Storage{
|
|
data: make(map[string]item),
|
|
}
|
|
utils.StartTimeStampUpdater()
|
|
go store.gc(1 * time.Second)
|
|
return store
|
|
}
|
|
|
|
// Get value by key
|
|
func (s *Storage) Get(key string) interface{} {
|
|
s.RLock()
|
|
v, ok := s.data[key]
|
|
s.RUnlock()
|
|
if !ok || v.e != 0 && v.e <= atomic.LoadUint32(&utils.Timestamp) {
|
|
return nil
|
|
}
|
|
return v.v
|
|
}
|
|
|
|
// Set key with value
|
|
func (s *Storage) Set(key string, val interface{}, ttl time.Duration) {
|
|
var exp uint32
|
|
if ttl > 0 {
|
|
exp = uint32(ttl.Seconds()) + atomic.LoadUint32(&utils.Timestamp)
|
|
}
|
|
s.Lock()
|
|
s.data[key] = item{exp, val}
|
|
s.Unlock()
|
|
}
|
|
|
|
// Delete key by key
|
|
func (s *Storage) Delete(key string) {
|
|
s.Lock()
|
|
delete(s.data, key)
|
|
s.Unlock()
|
|
}
|
|
|
|
// Reset all keys
|
|
func (s *Storage) Reset() {
|
|
s.Lock()
|
|
s.data = make(map[string]item)
|
|
s.Unlock()
|
|
}
|
|
|
|
func (s *Storage) gc(sleep time.Duration) {
|
|
ticker := time.NewTicker(sleep)
|
|
defer ticker.Stop()
|
|
var expired []string
|
|
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
expired = expired[:0]
|
|
s.RLock()
|
|
for key, v := range s.data {
|
|
if v.e != 0 && v.e <= atomic.LoadUint32(&utils.Timestamp) {
|
|
expired = append(expired, key)
|
|
}
|
|
}
|
|
s.RUnlock()
|
|
s.Lock()
|
|
for i := range expired {
|
|
delete(s.data, expired[i])
|
|
}
|
|
s.Unlock()
|
|
}
|
|
}
|
|
}
|