Files
packages/database/cache/memory.go
2025-07-15 18:40:13 +08:00

156 lines
2.7 KiB
Go

package cache
import (
"context"
"errors"
"time"
"github.com/dgraph-io/ristretto/v2"
)
var _ Cache = (*_mem)(nil)
type _mem struct {
ctx context.Context
cache *ristretto.Cache[string, []byte]
}
func newMemory(ctx context.Context, ins *ristretto.Cache[string, []byte]) Cache {
return &_mem{
ctx: ctx,
cache: ins,
}
}
func (m *_mem) Client() any {
return m.cache
}
func (c *_mem) Close() {
c.cache.Close()
}
func (c *_mem) Del(ctx context.Context, keys ...string) error {
for _, key := range keys {
c.cache.Del(key)
}
return nil
}
func (c *_mem) Get(ctx context.Context, key string) ([]byte, error) {
val, ok := c.cache.Get(key)
if !ok {
return val, ErrorKeyNotFound
}
return val, nil
}
func (c *_mem) GetDel(ctx context.Context, key string) ([]byte, error) {
val, err := c.Get(ctx, key)
if err != nil {
return val, err
}
c.cache.Del(key)
return val, err
}
func (c *_mem) GetDelScan(ctx context.Context, key string) Scanner {
val, err := c.GetDel(ctx, key)
return newScan(val, err)
}
func (c *_mem) GetEx(ctx context.Context, key string, duration time.Duration) ([]byte, error) {
val, err := c.Get(ctx, key)
if err != nil {
return val, err
}
c.cache.SetWithTTL(key, val, 1, duration)
return val, err
}
func (m *_mem) GetExScan(ctx context.Context, key string, duration time.Duration) Scanner {
val, err := m.GetEx(ctx, key, duration)
return newScan(val, err)
}
func (m *_mem) GetScan(ctx context.Context, key string) Scanner {
val, err := m.Get(ctx, key)
return newScan(val, err)
}
func (m *_mem) Gets(ctx context.Context, keys ...string) ([][]byte, error) {
vals := make([][]byte, 0, len(keys))
for _, key := range keys {
val, err := m.Get(ctx, key)
if err != nil {
if errors.Is(err, ErrorKeyNotFound) {
continue
}
return vals, err
}
vals = append(vals, val)
}
if len(vals) != len(keys) {
return vals, ErrorKeyNotFound
}
return vals, nil
}
func (m *_mem) Set(ctx context.Context, key string, value any) error {
val, err := handleValue(value)
if err != nil {
return err
}
if ok := m.cache.Set(key, val, 1); !ok {
return ErrorStoreFailed
}
m.cache.Wait()
return nil
}
func (m *_mem) SetEx(ctx context.Context, key string, value any, duration time.Duration) error {
val, err := handleValue(value)
if err != nil {
return err
}
if ok := m.cache.SetWithTTL(key, val, 1, duration); !ok {
return ErrorStoreFailed
}
m.cache.Wait()
return nil
}
func (m *_mem) Sets(ctx context.Context, vm map[string]any) error {
for key, value := range vm {
val, err := handleValue(value)
if err != nil {
return err
}
if ok := m.cache.Set(key, val, 1); !ok {
return ErrorStoreFailed
}
}
m.cache.Wait()
return nil
}