internal async Task <bool> RegisterSubscriber(Subscription sub, string datatype)
{
var args = new XmlRpcValue(ThisNode.Name, sub.Name, datatype, XmlRpcManager.Instance.Uri);
var result = new XmlRpcValue();
var payload = new XmlRpcValue();
if (!await Master.ExecuteAsync("registerSubscriber", args, result, payload, true).ConfigureAwait(false))
{
logger.LogError($"RPC \"registerSubscriber\" for topic {sub.Name} failed.");
return(false);
}
// get list of of publisher URIs
var pubUris = payload
.Select(x => x.GetString())
.Distinct()
.ToList();
Publication localPublication = null;
lock (gate)
{
localPublication = advertisedTopics.FirstOrDefault(p => p.Name == sub.Name && !p.Dropped && Md5SumsMatch(p.Md5Sum, sub.Md5Sum));
}
await sub.PubUpdate(pubUris).ConfigureAwait(false);
if (localPublication != null) // self-subscribed
{
sub.AddLocalConnection(localPublication);
}
return(true);
}
