/// <summary>
/// Check if the service is running.
/// </summary>
public static bool EnsureRunning(Context context, string scenario, int waitMs)
{
var currentUser = UserUtilities.CurrentUserName();
#if !PLATFORM_OSX
context.TraceMessage(Severity.Debug, $"Opening ready event name=[{scenario}] for user=[{currentUser}] waitMs={waitMs}.");
var stopwatch = Stopwatch.StartNew();
bool running = ensureRunningCore();
if (running)
{
context.TraceMessage(Severity.Debug, $"Opened ready event name=[{scenario}] by {stopwatch.ElapsedMilliseconds}ms.");
}
return(running);
bool ensureRunningCore()
{
try
{
if (!IpcUtilities.TryOpenExistingReadyWaitHandle(scenario, out EventWaitHandle readyEvent, waitMs))
{
context.TraceMessage(Severity.Debug, "Ready event does not exist");
return(false);
}
using (readyEvent)
{
var waitMsRemaining = Math.Max(0, waitMs - (int)stopwatch.ElapsedMilliseconds);
if (!readyEvent.WaitOne(waitMsRemaining))
{
context.TraceMessage(Severity.Debug, "Ready event was opened but remained unset until timeout");
return(false);
}
return(true);
}
}
catch (UnauthorizedAccessException)
{
context.TraceMessage(Severity.Debug, "Ready event exists, but user does not have acceptable security access");
}
return(false);
}
#else
context.TraceMessage(Severity.Debug, $"Not validating ready event (OSX) name=[{scenario}] for user=[{currentUser}] waitMs={waitMs}");
return(true);
#endif
}
public void IpcDoestNotLastAfterDispose()
{
var identifier = $"{nameof(IpcUtilitiesTests)}.{nameof(IpcDoestNotLastAfterDispose)}";
using (var readyHandle = IpcUtilities.GetReadyWaitHandle(identifier))
{
// Ready handle uses ManualReset, so this should leave the handle open for all
readyHandle.Set();
readyHandle.WaitOne(100).Should().BeTrue();
}
var found = IpcUtilities.TryOpenExistingReadyWaitHandle(identifier, out EventWaitHandle existingReadyHandle);
found.Should().BeFalse();
existingReadyHandle.Should().BeNull();
}