Function replicationCacheMasterUsingMaster

src/replication.cpp:4417–4431

This function is called when reloading master info from an RDB in Active Replica mode. * It creates a cached master client using the info contained in the redisMaster struct. * * Assumes that the passed struct contains valid master info. */

 *
 * Assumes that the passed struct contains valid master info. */
void replicationCacheMasterUsingMaster(redisMaster *mi) {
    if (mi->cached_master) {
        freeClient(mi->cached_master);
    }

    replicationCreateMasterClient(mi, NULL, -1);
    std::lock_guard<decltype(mi->master->lock)> lock(mi->master->lock);

    memcpy(mi->master->replid, mi->master_replid, sizeof(mi->master_replid));
    mi->master->reploff = mi->master_initial_offset;

    unlinkClient(mi->master);
    mi->cached_master = mi->master;
    mi->master = NULL;
}

/* Free a cached master, called when there are no longer the conditions for
 * a partial resync on reconnection. */