/// <summary>
/// Called when a channel state changes.
/// </summary>
/// <param name="sender">Event sender object.</param>
/// <param name="eventArgs">A <see cref="ChannelStateEventArgs"/> object.</param>
protected virtual void OnChannelStateChanged(object sender, ChannelStateEventArgs eventArgs)
{
if (ChannelStateChanged != null)
{
ChannelStateChanged(sender, eventArgs);
}
}
/// <summary>
/// Sets new channel state.
/// The method updates the <see cref="State"/> property and invokes the <see cref="OnChannelStateChanged"/> method.
/// </summary>
/// <param name="state">The new <see cref="ChannelState"/> value.</param>
protected void SetChannelState(ChannelState state)
{
if (state == State)
{
return;
}
var eventArgs = new ChannelStateEventArgs(State, state);
if (state == ChannelState.Disconnected)
{
lock (_subscriptions)
{
_subscriptions.Clear();
}
}
else if (state == ChannelState.Reconnecting)
{
_reconnectTaskCompletionSource = new TaskCompletionSource <object>();
}
State = state;
Task.Run(() => OnChannelStateChanged(eventArgs));
if (eventArgs.OldState == ChannelState.Reconnecting)
{
_reconnectTaskCompletionSource.TrySetResult(true);
}
}
/// <summary>
/// Fires the <see cref="StateChanged"/> event.
/// </summary>
/// <param name="eventArgs">The <see cref="ChannelStateEventArgs"/> object.</param>
protected virtual void OnChannelStateChanged(ChannelStateEventArgs eventArgs)
{
if (eventArgs == null)
{
throw new ArgumentNullException("eventArgs");
}
if (StateChanged != null)
{
StateChanged(this, eventArgs);
}
}
/// <summary>
/// Called when a channel state changes.
/// </summary>
/// <param name="sender">Event sender object.</param>
/// <param name="eventArgs">A <see cref="ChannelStateEventArgs"/> object.</param>
protected virtual void OnChannelStateChanged(object sender, ChannelStateEventArgs eventArgs)
{
if (ChannelStateChanged != null)
ChannelStateChanged(sender, eventArgs);
}
