Function pubsubUnsubscribeAllChannels

src/pubsub.cpp:256–273

Unsubscribe from all the channels. Return the number of channels the * client was subscribed to. */

/* Unsubscribe from all the channels. Return the number of channels the
 * client was subscribed to. */
int pubsubUnsubscribeAllChannels(client *c, int notify) {
    int count = 0;
    serverAssert(GlobalLocksAcquired());
    if (dictSize(c->pubsub_channels) > 0) {
        dictIterator *di = dictGetSafeIterator(c->pubsub_channels);
        dictEntry *de;

        while((de = dictNext(di)) != NULL) {
            robj *channel = (robj*)dictGetKey(de);

            count += pubsubUnsubscribeChannel(c,channel,notify);
        }
        dictReleaseIterator(di);
    }
    /* We were subscribed to nothing? Still reply to the client. */
    if (notify && count == 0) addReplyPubsubUnsubscribed(c,NULL);
    return count;
}

/* Unsubscribe from all the patterns. Return the number of patterns the
 * client was subscribed from. */