mirror of
https://github.com/openimsdk/open-im-server.git
synced 2025-11-04 19:32:17 +08:00
90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
package redis
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import (
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"context"
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"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache"
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"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache/cachekey"
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"github.com/openimsdk/tools/errs"
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"github.com/redis/go-redis/v9"
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"strconv"
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"time"
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)
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func NewUserOnline(rdb redis.UniversalClient) cache.OnlineCache {
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return &userOnline{
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rdb: rdb,
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expire: cachekey.OnlineExpire,
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channelName: cachekey.OnlineChannel,
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}
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}
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type userOnline struct {
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rdb redis.UniversalClient
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expire time.Duration
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channelName string
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}
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func (s *userOnline) getUserOnlineKey(userID string) string {
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return cachekey.GetOnlineKey(userID)
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}
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func (s *userOnline) GetOnline(ctx context.Context, userID string) ([]int32, error) {
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members, err := s.rdb.ZRangeByScore(ctx, s.getUserOnlineKey(userID), &redis.ZRangeBy{
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Min: strconv.FormatInt(time.Now().Unix(), 10),
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Max: "+inf",
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}).Result()
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if err != nil {
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return nil, errs.Wrap(err)
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}
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platformIDs := make([]int32, 0, len(members))
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for _, member := range members {
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val, err := strconv.Atoi(member)
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if err != nil {
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return nil, errs.Wrap(err)
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}
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platformIDs = append(platformIDs, int32(val))
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}
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return platformIDs, nil
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}
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func (s *userOnline) SetUserOnline(ctx context.Context, userID string, online, offline []int32) error {
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script := `
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local key = KEYS[1]
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local score = ARGV[3]
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local num1 = redis.call("ZCARD", key)
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redis.call("ZREMRANGEBYSCORE", key, "-inf", ARGV[2])
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for i = 5, tonumber(ARGV[4])+4 do
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redis.call("ZREM", key, ARGV[i])
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end
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local num2 = redis.call("ZCARD", key)
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for i = 5+tonumber(ARGV[4]), #ARGV do
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redis.call("ZADD", key, score, ARGV[i])
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end
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redis.call("EXPIRE", key, ARGV[1])
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local num3 = redis.call("ZCARD", key)
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local change = (num1 ~= num2) or (num2 ~= num3)
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if change then
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local members = redis.call("ZRANGE", key, 0, -1)
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table.insert(members, KEYS[2])
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redis.call("PUBLISH", KEYS[3], table.concat(members, ":"))
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return 1
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else
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return 0
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end
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`
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now := time.Now()
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argv := make([]any, 0, 2+len(online)+len(offline))
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argv = append(argv, int32(s.expire/time.Second), now.Unix(), now.Add(s.expire).Unix(), int32(len(offline)))
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for _, platformID := range offline {
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argv = append(argv, platformID)
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}
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for _, platformID := range online {
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argv = append(argv, platformID)
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}
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keys := []string{s.getUserOnlineKey(userID), userID, s.channelName}
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if err := s.rdb.Eval(ctx, script, keys, argv).Err(); err != nil {
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return err
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}
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return nil
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}
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