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Open-IM-Server/internal/utils/local_cache.go

83 lines
3.1 KiB

package utils
import (
"Open_IM/pkg/common/config"
rocksCache "Open_IM/pkg/common/db/rocks_cache"
"Open_IM/pkg/common/log"
"Open_IM/pkg/grpc-etcdv3/getcdv3"
pbCache "Open_IM/pkg/proto/cache"
"Open_IM/pkg/utils"
"context"
"errors"
"strings"
"sync"
)
type GroupMemberUserIDListHash struct {
MemberListHash uint64
UserIDList []string
}
var CacheGroupMemberUserIDList = make(map[string]*GroupMemberUserIDListHash, 0)
var CacheGroupMtx sync.RWMutex
func GetGroupMemberUserIDList(groupID string, operationID string) ([]string, error) {
groupHashRemote, err := GetGroupMemberUserIDListHashFromRemote(groupID)
if err != nil {
CacheGroupMtx.Lock()
defer CacheGroupMtx.Unlock()
delete(CacheGroupMemberUserIDList, groupID)
log.Error(operationID, "GetGroupMemberUserIDListHashFromRemote failed ", err.Error(), groupID)
return nil, utils.Wrap(err, groupID)
}
CacheGroupMtx.Lock()
defer CacheGroupMtx.Unlock()
if groupHashRemote == 0 {
log.Info(operationID, "groupHashRemote == 0 ", groupID)
delete(CacheGroupMemberUserIDList, groupID)
return []string{}, nil
}
groupInLocalCache, ok := CacheGroupMemberUserIDList[groupID]
if ok && groupInLocalCache.MemberListHash == groupHashRemote {
log.Debug(operationID, "in local cache ", groupID)
return groupInLocalCache.UserIDList, nil
}
log.Debug(operationID, "not in local cache or hash changed", groupID, " remote hash ", groupHashRemote, " in cache ", ok)
memberUserIDListRemote, err := GetGroupMemberUserIDListFromRemote(groupID, operationID)
if err != nil {
log.Error(operationID, "GetGroupMemberUserIDListFromRemote failed ", err.Error(), groupID)
return nil, utils.Wrap(err, groupID)
}
CacheGroupMemberUserIDList[groupID] = &GroupMemberUserIDListHash{MemberListHash: groupHashRemote, UserIDList: memberUserIDListRemote}
return memberUserIDListRemote, nil
}
func GetGroupMemberUserIDListHashFromRemote(groupID string) (uint64, error) {
return rocksCache.GetGroupMemberListHashFromCache(groupID)
}
func GetGroupMemberUserIDListFromRemote(groupID string, operationID string) ([]string, error) {
getGroupMemberIDListFromCacheReq := &pbCache.GetGroupMemberIDListFromCacheReq{OperationID: operationID, GroupID: groupID}
etcdConn := getcdv3.GetDefaultConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImCacheName, operationID)
if etcdConn == nil {
errMsg := operationID + "getcdv3.GetDefaultConn == nil"
log.NewError(operationID, errMsg)
return nil, errors.New("errMsg")
}
client := pbCache.NewCacheClient(etcdConn)
cacheResp, err := client.GetGroupMemberIDListFromCache(context.Background(), getGroupMemberIDListFromCacheReq)
if err != nil {
log.NewError(operationID, "GetGroupMemberIDListFromCache rpc call failed ", err.Error())
return nil, utils.Wrap(err, "GetGroupMemberIDListFromCache rpc call failed")
}
if cacheResp.CommonResp.ErrCode != 0 {
errMsg := operationID + "GetGroupMemberIDListFromCache rpc logic call failed " + cacheResp.CommonResp.ErrMsg
log.NewError(operationID, errMsg)
return nil, errors.New("errMsg")
}
return cacheResp.UserIDList, nil
}