internal override Task <T> ExecuteAsync <T>(Message message, ResultProcessor <T> processor, ServerEndPoint server = null)
{
if (message == null)
{
return(CompletedTask <T> .Default(asyncState));
}
multiplexer.CheckMessage(message);
multiplexer.Trace("Wrapping " + message.Command, "Transaction");
// prepare the inner command as a task
Task <T> task;
if (message.IsFireAndForget)
{
task = CompletedTask <T> .Default(null); // F+F explicitly does not get async-state
}
else
{
var tcs = TaskSource.Create <T>(asyncState);
var source = ResultBox <T> .Get(tcs);
message.SetSource(source, processor);
task = tcs.Task;
}
// prepare an outer-command that decorates that, but expects QUEUED
var queued = new QueuedMessage(message);
var wasQueued = ResultBox <bool> .Get(null);
queued.SetSource(wasQueued, QueuedProcessor.Default);
// store it, and return the task of the *outer* command
// (there is no task for the inner command)
lock (SyncLock)
{
(_pending ?? (_pending = new List <QueuedMessage>())).Add(queued);
switch (message.Command)
{
case RedisCommand.UNKNOWN:
case RedisCommand.EVAL:
case RedisCommand.EVALSHA:
// people can do very naughty things in an EVAL
// including change the DB; change it back to what we
// think it should be!
var sel = PhysicalConnection.GetSelectDatabaseCommand(message.Db);
queued = new QueuedMessage(sel);
wasQueued = ResultBox <bool> .Get(null);
queued.SetSource(wasQueued, QueuedProcessor.Default);
_pending.Add(queued);
break;
}
}
return(task);
}
private void SelectDatabase(PhysicalConnection connection, Message message)
{
int db = message.Db;
if (db >= 0)
{
var sel = connection.GetSelectDatabaseCommand(db, message);
if (sel != null)
{
connection.Enqueue(sel);
sel.WriteImpl(connection);
IncrementOpCount();
}
}
}
private void SelectDatabaseInsideWriteLock(PhysicalConnection connection, Message message)
{
int db = message.Db;
if (db >= 0)
{
var sel = connection.GetSelectDatabaseCommand(db, message);
if (sel != null)
{
connection.EnqueueInsideWriteLock(sel);
sel.WriteTo(connection);
sel.SetRequestSent();
IncrementOpCount();
}
}
}
private void SelectDatabase(PhysicalConnection connection, Message message)
{
int db = message.Db;
if (db >= 0)
{
var sel = connection.GetSelectDatabaseCommand(db, message);
if (sel != null)
{
connection.Enqueue(sel);
sel.WriteImpl(connection);
sel.SetRequestSent();
IncrementOpCount();
}
}
}
