void unsubscribeCommand(redisClient *c) { if (c->argc == 1) { pubsubUnsubscribeAllChannels(c,1); } else { int j; for (j = 1; j < c->argc; j++) pubsubUnsubscribeChannel(c,c->argv[j],1); } if (clientSubscriptionsCount(c) == 0) c->flags &= ~REDIS_PUBSUB; }
/* Unsubscribe from all the channels. Return the number of channels the * client was subscribed from. */ int pubsubUnsubscribeAllChannels(redisClient *c, int notify) { dictIterator *di = dictGetSafeIterator(c->pubsub_channels); dictEntry *de; int count = 0; while((de = dictNext(di)) != NULL) { robj *channel = dictGetKey(de); count += pubsubUnsubscribeChannel(c,channel,notify); } dictReleaseIterator(di); return count; }
/* Unsubscribe from all the channels. Return the number of channels the * client was subscribed from. */ int pubsubUnsubscribeAllChannels(redisClient *c, int notify) { dictIterator *di = dictGetSafeIterator(c->pubsub_channels); dictEntry *de; int count = 0; while((de = dictNext(di)) != NULL) { robj *channel = dictGetKey(de); count += pubsubUnsubscribeChannel(c,channel,notify); } /* We were subscribed to nothing? Still reply to the client. */ if (notify && count == 0) { addReply(c,shared.mbulkhdr[3]); addReply(c,shared.unsubscribebulk); addReply(c,shared.nullbulk); addReplyLongLong(c,dictSize(c->pubsub_channels)+ listLength(c->pubsub_patterns)); } dictReleaseIterator(di); return count; }