/// <summary>
/// Initializes a new instance of the <see cref="SafeTerminateHandler{T}"/> class that
/// wraps a disposable object that will be created by calling the
/// specified callback Func.
/// </summary>
/// <param name="createCallback">A method that has no parameters and returns a new disposable object of the type specified by the <typeparamref name="T"/> parameter.</param>
public SafeTerminateHandler(Func <T> createCallback)
{
_disposedValue = true;
_lock = new object();
BaseDisposableObject = null;
_HandlerRoutine = (Kernel32.CtrlTypes dwCtrlType) =>
{
switch (dwCtrlType)
{
case Kernel32.CtrlTypes.CTRL_C_EVENT:
case Kernel32.CtrlTypes.CTRL_BREAK_EVENT:
case Kernel32.CtrlTypes.CTRL_CLOSE_EVENT:
Dispose();
break;
default:
break;
}
return(false);
};
lock (_lock)
{
_disposedValue = false;
if (!Kernel32.SetConsoleCtrlHandler(_HandlerRoutine, true))
{
throw new Exception("SetConsoleCtrlHandler failed to add handler.");
}
BaseDisposableObject = createCallback();
}
}
public static void AddConsoleEventHandler(Kernel32.PHANDLER_ROUTINE handler)
{
try
{
Kernel32.SetConsoleCtrlHandler(handler, true);
}
catch (Exception ex) when(IsDllException(ex))
{
}
}
