/// <summary>
/// Sends a Ping with the specified <see cref="string"/> to the client of the <see cref="WebSocketService"/>
/// instance with the specified ID.
/// </summary>
/// <returns>
/// <c>true</c> if the <see cref="WebSocketService"/> instance receives a Pong in a time;
/// otherwise, <c>false</c>.
/// </returns>
/// <param name="id">
/// A <see cref="string"/> that contains an ID that represents the destination for the Ping.
/// </param>
/// <param name="message">
/// A <see cref="string"/> that contains a message to send.
/// </param>
public virtual bool PingTo(string id, string message)
{
if (!IsBound)
{
return(false);
}
if (message == null)
{
message = String.Empty;
}
var msg = id.IsNullOrEmpty()
? "'id' must not be null or empty."
: Encoding.UTF8.GetBytes(message).Length > 125
? "The payload length of a Ping frame must be 125 bytes or less."
: String.Empty;
if (msg.Length > 0)
{
Log.Error(msg);
Error(msg);
return(false);
}
return(_sessions.PingTo(id, message));
}
