49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package guard
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"go-common/library/cache/redis"
|
|
"go-common/library/log"
|
|
)
|
|
|
|
// redis cache
|
|
const (
|
|
_lockKey = "saveGuard:%s"
|
|
_cacheKeyUid = "live_user:guard:uid:v1:%d"
|
|
_cacheKeyTargetId = "live_user:guard:target_id:v1:%d"
|
|
)
|
|
|
|
// LockOrder lock for same order
|
|
func (d *GuardDao) LockOrder(ctx context.Context, orderID string) (ok bool, err error) {
|
|
conn := d.redis.Get(ctx)
|
|
defer conn.Close()
|
|
_, err = redis.String(conn.Do("SET", fmt.Sprintf(_lockKey, orderID), 1, "EX", 3*86400, "NX"))
|
|
if err == redis.ErrNil {
|
|
log.Info("LockOrder(%s) is ErrNil!", orderID)
|
|
return false, nil
|
|
}
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
// UnlockOrder release lock for same order
|
|
func (d *GuardDao) UnlockOrder(ctx context.Context, orderID string) (err error) {
|
|
conn := d.redis.Get(ctx)
|
|
defer conn.Close()
|
|
_, err = redis.String(conn.Do("DEL", fmt.Sprintf(_lockKey, orderID)))
|
|
return
|
|
}
|
|
|
|
// ClearCache delete cache for guard
|
|
func (d *GuardDao) ClearCache(ctx context.Context, uid int64, ruid int64) (err error) {
|
|
conn := d.redis.Get(ctx)
|
|
defer conn.Close()
|
|
_, err = redis.String(conn.Do("DEL", fmt.Sprintf(_cacheKeyUid, uid)))
|
|
_, err = redis.String(conn.Do("DEL", fmt.Sprintf(_cacheKeyTargetId, ruid)))
|
|
return
|
|
}
|