// Copyright © 2023 OpenIM. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package msg import ( "context" "time" "github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache" ) const GlOBALLOCK = "GLOBAL_LOCK" type MessageLocker interface { LockMessageTypeKey(ctx context.Context, clientMsgID, typeKey string) (err error) UnLockMessageTypeKey(ctx context.Context, clientMsgID string, typeKey string) error LockGlobalMessage(ctx context.Context, clientMsgID string) (err error) UnLockGlobalMessage(ctx context.Context, clientMsgID string) (err error) } type LockerMessage struct { cache cache.MsgModel } func NewLockerMessage(cache cache.MsgModel) *LockerMessage { return &LockerMessage{cache: cache} } func (l *LockerMessage) LockMessageTypeKey(ctx context.Context, clientMsgID, typeKey string) (err error) { for i := 0; i < 3; i++ { err = l.cache.LockMessageTypeKey(ctx, clientMsgID, typeKey) if err != nil { time.Sleep(time.Millisecond * 100) continue } else { break } } return err } func (l *LockerMessage) LockGlobalMessage(ctx context.Context, clientMsgID string) (err error) { for i := 0; i < 3; i++ { err = l.cache.LockMessageTypeKey(ctx, clientMsgID, GlOBALLOCK) if err != nil { time.Sleep(time.Millisecond * 100) continue } else { break } } return err } func (l *LockerMessage) UnLockMessageTypeKey(ctx context.Context, clientMsgID string, typeKey string) error { return l.cache.UnLockMessageTypeKey(ctx, clientMsgID, typeKey) } func (l *LockerMessage) UnLockGlobalMessage(ctx context.Context, clientMsgID string) error { return l.cache.UnLockMessageTypeKey(ctx, clientMsgID, GlOBALLOCK) }