/// <summary>
/// A convenience for subclasses to wait until all apps (or services) have transitioned to a desired state.
/// </summary>
/// <param name="appsOrServices">A list of either app or service names.</param>
/// <param name="statusCheck">A function that returns the status of an app or service.</param>
/// <param name="status">The desired state.</param>
/// <exception cref="ToolingException">If <see cref="Settings.MaxChecks"/> exceeded.</exception>
protected void WaitUntilAllTransitioned(List <string> appsOrServices, Func <string, Lifecycle.Status> statusCheck,
Lifecycle.Status status)
{
foreach (var appOrService in appsOrServices)
{
var count = 0;
while (true)
{
++count;
if (Settings.MaxChecks > 0)
{
if (count > Settings.MaxChecks)
{
throw new ToolingException($"max checks exceeded ({Settings.MaxChecks})");
}
}
if (statusCheck(appOrService) == status)
{
break;
}
const int ticksPerMillis = 10000;
const int oneSecondMillis = 1000;
var startTicks = DateTime.Now.Ticks;
var elapsedMillis = (DateTime.Now.Ticks - startTicks) / ticksPerMillis;
var waitMillis = oneSecondMillis - elapsedMillis;
if (waitMillis > 0L)
{
Thread.Sleep((int)waitMillis);
}
Context.Console.WriteLine(
$"Waiting for '{appOrService}' to transition to {status.ToString().ToLower()} ({count})");
}
}
}
/// <summary>
/// Creates a new LifecycleException.
/// </summary>
/// <param name="status">Current lifecycle state.</param>
public LifecycleException(Lifecycle.Status status) : base(
$"Invalid status '{status.ToString().ToLower()}'")
{
Status = status;
}