/// <summary>
/// Initializes a new instance of the <see cref="LavalinkSocket"/> class.
/// </summary>
/// <param name="options">the node options</param>
/// <param name="client">the discord client</param>
/// <param name="logger">the logger</param>
/// <param name="cache">an optional cache that caches track requests</param>
public LavalinkSocket(LavalinkNodeOptions options, IDiscordClientWrapper client, ILogger logger, ILavalinkCache cache = null)
: base(options, logger, cache)
{
Logger = logger;
if (options.BufferSize <= 0)
{
if (Logger is null)
{
throw new InvalidOperationException("The specified buffer size is zero or negative.");
}
Logger.Log(this, "The specified buffer size is zero or negative .. using 1048576 (1MiB).", LogLevel.Warning);
options.BufferSize = 1024 * 1024; // 1 MiB buffer size
}
if (options.ReconnectStrategy is null)
{
throw new InvalidOperationException("No reconnection strategy specified in options.");
}
_client = client;
_password = options.Password;
_webSocketUri = new Uri(options.WebSocketUri);
_receiveBuffer = new byte[options.BufferSize];
_overflowBuffer = new StringBuilder();
_resume = options.AllowResuming;
_ioDebug = options.DebugPayloads;
_resumeKey = Guid.NewGuid();
_queue = new Queue <IPayload>();
_reconnectionStrategy = options.ReconnectStrategy;
_cancellationTokenSource = new CancellationTokenSource();
}
/// <summary>
/// Called by sender/receiver when they disconnect unexpectedly
/// </summary>
private void HandleUnexpectedDisconnect()
{
if (!status.Set(TwitchChatStatus.Reconnecting))
{
return;
}
OnReconnecting();
if (ReconnectStrategy == null)
{
return;
}
reconnectingTask = ReconnectStrategy
.ExecuteAsync(DoReconnect, connectionToken.Token)
.ContinueWith(t =>
{
if (t.Result)
{
if (!status.SetConditional(TwitchChatStatus.Connected, s => s == TwitchChatStatus.Reconnecting))
{
DoDisconnectUnsafeAsync().Wait();
}
else
{
OnConnected();
}
}
else
{
if (connectionToken.IsCancellationRequested)
{
return;
}
if (status.Set(TwitchChatStatus.Disconnected))
{
OnReconnectFailed();
}
}
reconnectingTask = null;
});
}
/// <summary>
/// Initializes a new instance of the <see cref="ReconnectAttemptEventArgs"/> class.
/// </summary>
/// <param name="uri">the URI connect / reconnected / disconnected from / to</param>
/// <param name="attempt">the number of reconnect attempts already made (1 = first)</param>
/// <param name="strategy">the reconnect strategy used</param>
/// <exception cref="ArgumentNullException">
/// thrown if the specified <paramref name="uri"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="ArgumentNullException">
/// thrown if the specified <paramref name="strategy"/> is <see langword="null"/>.
/// </exception>
public ReconnectAttemptEventArgs(Uri uri, int attempt, ReconnectStrategy strategy) : base(uri)
{
Attempt = attempt;
Strategy = strategy ?? throw new ArgumentNullException(nameof(strategy));
}
