/// <summary>
/// Returns this object back to the object pool from whence it came.
/// </summary>
public void Recycle()
{
this.Acknowledged = true;
this.Connection = null;
PacketPool.PutObject(this);
}
// Packets resent
public async ValueTask <int> Resend()
{
UdpConnection connection = this.Connection;
if (!this.Acknowledged && connection != null)
{
long lifetime = this.Stopwatch.ElapsedMilliseconds;
if (lifetime >= connection.DisconnectTimeout)
{
if (connection.reliableDataPacketsSent.TryRemove(this.Id, out Packet self))
{
await connection.DisconnectInternal(HazelInternalErrors.ReliablePacketWithoutResponse, $"Reliable packet {self.Id} (size={this.Length}) was not ack'd after {lifetime}ms ({self.Retransmissions} resends)");
self.Recycle();
}
return(0);
}
if (lifetime >= this.NextTimeout)
{
++this.Retransmissions;
if (connection.ResendLimit != 0 &&
this.Retransmissions > connection.ResendLimit)
{
if (connection.reliableDataPacketsSent.TryRemove(this.Id, out Packet self))
{
await connection.DisconnectInternal(HazelInternalErrors.ReliablePacketWithoutResponse, $"Reliable packet {self.Id} (size={this.Length}) was not ack'd after {self.Retransmissions} resends ({lifetime}ms)");
self.Recycle();
}
return(0);
}
this.NextTimeout += (int)Math.Min(this.NextTimeout * connection.ResendPingMultiplier, 1000);
try
{
await connection.WriteBytesToConnection(this.Data, this.Length);
connection.Statistics.LogMessageResent();
return(1);
}
catch (InvalidOperationException)
{
await connection.DisconnectInternal(HazelInternalErrors.ConnectionDisconnected, "Could not resend data as connection is no longer connected");
}
}
}
return(0);
}
internal void Set(ushort id, UdpConnection connection, byte[] data, int length, int timeout, Action ackCallback)
{
this.Id = id;
this.Data = data;
this.Connection = connection;
this.Length = length;
this.Acknowledged = false;
this.NextTimeout = timeout;
this.AckCallback = ackCallback;
this.Retransmissions = 0;
this.Stopwatch.Restart();
}