public async Task <database_response> SendRequestToSocket(byte[] req)
{
byte[] response = null;
bool failed = false;
Utils utils = new Utils();
using (var ws = new WebSocket(url))
{
ws.OnError += (sender, e) =>
{
failed = true;
};
ws.OnMessage += (sender, e) =>
{
response = e.RawData;
};
ws.OnClose += (sender, e) =>
{
};
ws.Connect();
try
{
ws.Send(req);
}
catch (Exception e)
{
Console.WriteLine(e);
return(null);
}
while (response == null)
{
await Task.Delay(100);
if (failed)
{
return(null);
}
}
bzn_envelope env = new bzn_envelope();
database_response dbresp = new database_response();
using (var stream = new MemoryStream(response))
{
env = bzn_envelope.Parser.ParseFrom(stream);
dbresp = database_response.Parser.ParseFrom(env.DatabaseResponse);
if (dbresp.Redirect != null)
{
this.url = $"ws://{dbresp.Redirect.LeaderHost}:{dbresp.Redirect.LeaderPort}";
return(await SendRequestToSocket(req));
}
return(dbresp);
}
}
}
public void RemoveNonceHeader(database_response res)
{
if (res.Header.DbUuid == this.uuid)
{
var nonce = res.Header.Nonce;
try
{
if (this.nonceMap[nonce])
{
this.nonceMap.Remove(nonce);
}
else
{
Console.WriteLine("Metadata layer: nonce doesn't belong to map. Was it terminated too early?");
}
}
catch (KeyNotFoundException)
{
Console.WriteLine("Metadata layer: nonce doesn't belong to map. Was it terminated too early?");
}
}
}
