/// <summary>
/// Callback method invoked every time a meta message is being sent.
/// </summary>
/// <returns>Always true.</returns>
/// <exception cref="ArgumentNullException"><paramref name="message"/> is null.</exception>
public override bool SendMeta(IClientSession session, IMutableMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
string channel = message.Channel;
if (Channel.MetaHandshake.Equals(channel, StringComparison.OrdinalIgnoreCase))
{
IDictionary <string, object> ext = message.GetExtension(true);
lock (ext) ext[ExtensionField] = true;
_ackId = -1;
}
else if (_serverSupportsAcks &&
Channel.MetaConnect.Equals(channel, StringComparison.OrdinalIgnoreCase))
{
IDictionary <string, object> ext = message.GetExtension(true);
lock (ext) ext[ExtensionField] = _ackId;
}
return(true);
}
/// <summary>
/// Callback method invoked every time a meta message is received.
/// </summary>
/// <returns>Always true.</returns>
/// <exception cref="ArgumentNullException"><paramref name="message"/> is null.</exception>
public override bool ReceiveMeta(IClientSession session, IMutableMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
string channel = message.Channel;
if (Channel.MetaHandshake.Equals(channel, StringComparison.OrdinalIgnoreCase))
{
IDictionary <string, object> ext = message.GetExtension(false);
object val;
_serverSupportsAcks = (ext != null &&
ext.TryGetValue(ExtensionField, out val) &&
ObjectConverter.ToPrimitive <bool>(val, false));
}
else if (_serverSupportsAcks &&
message.IsSuccessful &&
Channel.MetaConnect.Equals(channel, StringComparison.OrdinalIgnoreCase))
{
IDictionary <string, object> ext = message.GetExtension(false);
object val;
if (ext != null && ext.TryGetValue(ExtensionField, out val))
{
_ackId = ObjectConverter.ToPrimitive <int>(val, _ackId);
}
}
return(true);
}
/// <summary>
/// Callback method invoked every time a meta message is received.
/// </summary>
/// <returns>Always true.</returns>
/// <exception cref="ArgumentNullException"><paramref name="message"/> is null.</exception>
public override bool ReceiveMeta(IClientSession session, IMutableMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
IDictionary <string, object> ext = message.GetExtension(false);
object val;
if (ext != null && ext.TryGetValue(ExtensionField, out val))
{
IDictionary <string, object> sync
= ObjectConverter.ToObject <IDictionary <string, object> >(val);
if (sync != null && // && sync.ContainsKey("a")
sync.ContainsKey("tc") && sync.ContainsKey("ts") && sync.ContainsKey("p"))
{
long now = CurrentTimeMillis();
long tc = ObjectConverter.ToPrimitive <long>(sync["tc"], 0);
long ts = ObjectConverter.ToPrimitive <long>(sync["ts"], 0);
int p = ObjectConverter.ToPrimitive <int>(sync["p"], 0);
//int a = ObjectConverter.ToPrimitive<int>(sync["a"], 0);
int l2 = (int)((now - tc - p) / 2);
int o2 = (int)(ts - tc - l2);
_lag = (_lag == 0) ? l2 : ((_lag + l2) / 2);
_offset = (_offset == 0) ? o2 : ((_offset + o2) / 2);
}
}
return(true);
}
/// <summary>
/// Callback method invoked every time a meta message is being sent.
/// </summary>
/// <returns>Always true.</returns>
/// <exception cref="ArgumentNullException"><paramref name="message"/> is null.</exception>
public override bool SendMeta(IClientSession session, IMutableMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
long now = CurrentTimeMillis();
IDictionary <string, object> timesync
= new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase)
{
{ "tc", now },
{ "l", _lag },
{ "o", _offset }
};
IDictionary <string, object> ext = message.GetExtension(true);
lock (ext) ext[ExtensionField] = timesync;
return(true);
}
