/// <summary>Check or create instance.</summary>
private static void CheckOrCreateInstance()
{
if (_instance == null)
{
_instance = new WebsocketManager();
}
}
/// <summary>Process the keepalives.</summary>
/// <param name="currentTicks">The current ticks.</param>
/// <param name="timeString"> The time string.</param>
public static void ProcessKeepalives(long currentTicks, string timeString)
{
List <Guid> clientsToRemove = new List <Guid>();
// traverse the dictionary looking for clients we need to send messages to
foreach (KeyValuePair <Guid, long> kvp in _instance._clientsAndTimeouts)
{
// check timeout
if (currentTicks > kvp.Value)
{
// enqueue a message for this client
if (WebsocketManager.TryGetClient(kvp.Key, out WebsocketClientInformation client))
{
// enqueue a keepalive message
client.MessageQ.Enqueue($"keepalive {timeString}");
}
else
{
// client is gone, stop sending (cannot remove inside iterator)
clientsToRemove.Add(kvp.Key);
}
}
}
if (clientsToRemove.Count > 0)
{
foreach (Guid clientGuid in clientsToRemove)
{
_instance._clientsAndTimeouts.TryRemove(clientGuid, out _);
}
}
}