Function sentinelDropConnections

src/sentinel.cpp:1171–1196

Drop all connections to other sentinels. Returns the number of connections * dropped.*/

/* Drop all connections to other sentinels. Returns the number of connections
 * dropped.*/
int sentinelDropConnections(void) {
    dictIterator *di;
    dictEntry *de;
    int dropped = 0;

    di = dictGetIterator(sentinel.masters);
    while ((de = dictNext(di)) != NULL) {
        dictIterator *sdi;
        dictEntry *sde;

        sentinelRedisInstance *ri = (sentinelRedisInstance*)dictGetVal(de);
        sdi = dictGetIterator(ri->sentinels);
        while ((sde = dictNext(sdi)) != NULL) {
            sentinelRedisInstance *si = (sentinelRedisInstance*)dictGetVal(sde);
            if (!si->link->disconnected) {
                instanceLinkCloseConnection(si->link, si->link->pc);
                instanceLinkCloseConnection(si->link, si->link->cc);
                dropped++;
            }
        }
        dictReleaseIterator(sdi);
    }
    dictReleaseIterator(di);

    return dropped;
}

/* When we detect a Sentinel to switch address (reporting a different IP/port
 * pair in Hello messages), let's update all the matching Sentinels in the