32 lines
660 B
Go
32 lines
660 B
Go
|
package dao
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
|
||
|
|
"go-common/library/cache/redis"
|
||
|
|
"go-common/library/log"
|
||
|
|
)
|
||
|
|
|
||
|
|
//TryLock ...
|
||
|
|
func (d *Dao) TryLock(c context.Context, key string, value string, timeout int) (ok bool, err error) {
|
||
|
|
var conn = d.redis.Get(c)
|
||
|
|
defer conn.Close()
|
||
|
|
_, err = redis.String(conn.Do("SET", key, value, "EX", timeout, "NX"))
|
||
|
|
if err == redis.ErrNil {
|
||
|
|
log.Info("TryLock redis key(%s) is ErrNil!", key)
|
||
|
|
return false, nil
|
||
|
|
}
|
||
|
|
if err != nil {
|
||
|
|
return false, err
|
||
|
|
}
|
||
|
|
return true, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// UnLock ...
|
||
|
|
func (d *Dao) UnLock(c context.Context, key string) (err error) {
|
||
|
|
var conn = d.redis.Get(c)
|
||
|
|
defer conn.Close()
|
||
|
|
_, err = conn.Do("DEL", key)
|
||
|
|
return
|
||
|
|
}
|