private Queue <String> LoadUnexistentScripts(SocketReader reader, SocketWriter writer)
{
var loadQueue = new Queue <String>();
// read results
var result = RESPObject.Read(reader);
var array = result.Cast <RESPArray>();
// if a script does not exists, send 'script load'
for (int i = 0; i < array.Count; i++)
{
var found = array[i].Cast <RESPInteger>().Value != 0;
if (!found)
{
var digest = _procedures.Digests[i];
_logger.Info("Script with digest {0} not found, loading...", digest);
var load = GenerateLoadCommand(digest);
load.WriteTo(writer);
loadQueue.Enqueue(digest);
}
}
writer.Flush();
return(loadQueue);
}
public void Initialize(SocketReader reader, SocketWriter writer)
{
if (_commands == null || _commands.Length == 0)
{
return;
}
SendCommands(writer);
writer.Flush();
ReadResults(reader);
}
public void Initialize(SocketReader reader, SocketWriter writer)
{
var currentSubscriptions = _subscriptions.GetAllSubscribeCommands();
if (currentSubscriptions.Any())
{
foreach (var command in currentSubscriptions)
{
command.WriteTo(writer);
}
writer.Flush();
}
}
private Boolean ShouldLoadScripts(SocketWriter writer)
{
if (_procedures.Digests.Any())
{
var array = new RESPCommand(new RESPCommandLiteral("SCRIPT"), false);
array.Add(new RESPCommandLiteral("exists"));
foreach (var digest in _procedures.Digests)
{
_logger.Info("Checking existence of script digest {0}...", digest);
array.Add(new RESPCommandLiteral(digest));
}
array.WriteTo(writer);
writer.Flush();
return(true);
}
return(false);
}
private void WriteToken(SocketWriter writer, ExecutionToken token)
{
try
{
_logger.Debug("{0} Received token {1}.", _code, token);
var hasCommands = false;
foreach (var command in ExecuteOperation(token))
{
// some subscription commands are aggregated
// and produce no commands.
if (!hasCommands)
{
hasCommands = true;
_pending.Enqueue(token);
}
command.WriteTo(writer);
}
if (hasCommands)
{
writer.Flush(); // using the async version kills performance, worth investigating why
_logger.Debug("{0} flushed buffer.", _code);
}
}
catch (OperationCanceledException)
{
token.SetCancelled();
throw;
}
catch (Exception ex)
{
token.SetFaulted(ex);
throw;
}
}
