/// <summary>Adds a action to perform when a channel can be read</summary>
/// <param name="ch">The channel to try to read from</param>
/// <param name="action">the synchronous action to perform with the value that was read</param>
public Select OnReceive <T>(Channel <T> ch, Action <T> action)
{
var @case = new ReceiveCase <T>(ch, action);
cases.Add(@case);
quickCases = null;
return(this);
}
/// <summary>Tries to reads from one (and only one) of the added channels. Does no action if the <paramref name="timeout"/> has been reached</summary>
/// <returns>True if an action was performed, False if no action was performed and the timeout was reached</returns>
public async Task <bool> ExecuteAsync(TimeSpan timeout)
{
if (timeout == System.Threading.Timeout.InfiniteTimeSpan || timeout == TimeSpan.MaxValue)
{
await ExecuteAsync();
return(true);
}
var timedOut = false;
var receiveTimeout = new ReceiveCase <DateTime>(Timeout.After(timeout), _ => timedOut = true);
var idx = cases.Count;
cases.Add(receiveTimeout);
await ExecuteAsync();
cases.RemoveAt(idx);
return(!timedOut);
}
