/// <summary>
/// Listen for messages published to the given channels
/// </summary>
/// <param name="callback">Callback for received messages on the specified channels</param>
/// <param name="channels">Channels to subscribe</param>
public void Subscribe(Action <RedisSubscriptionMessage> callback, params string[] channels)
{
if (callback != null)
{
AddCallback(callback, channels);
}
var cmd = RedisCommand.Subscribe(channels);
_connection.Write(cmd.Command, cmd.Arguments);
}
public void HandleSubscription(RedisSubscription command)
{
_connection.Write(command.Command, command.Arguments);
if (!IsSubscribed)
{
using (new ActivityTracer("Handle subscriptions"))
{
IsSubscribed = true;
while (true)
{
var resp = _connection.Read(command.Parser);
switch (resp.Type)
{
case RedisSubscriptionResponseType.Subscribe:
case RedisSubscriptionResponseType.PSubscribe:
case RedisSubscriptionResponseType.Unsubscribe:
case RedisSubscriptionResponseType.PUnsubscribe:
RedisSubscriptionChannel channel = resp as RedisSubscriptionChannel;
Count = channel.Count;
if (SubscriptionChanged != null)
{
SubscriptionChanged(this, new RedisSubscriptionChangedEventArgs(channel));
}
break;
case RedisSubscriptionResponseType.Message:
case RedisSubscriptionResponseType.PMessage:
RedisSubscriptionMessage message = resp as RedisSubscriptionMessage;
if (SubscriptionReceived != null)
{
SubscriptionReceived(this, new RedisSubscriptionReceivedEventArgs(message));
}
break;
}
if (Count == 0)
{
break;
}
}
IsSubscribed = false;
}
}
}