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Difference between binary semaphore and mutex
...happen (a sensor being tripped for example).
Sensor Trips and an Interrupt Service Routine runs. It needs to notify a task of the trip.
Task B should run and take appropriate actions for the sensor trip. Then go back to waiting.
Task A Task B
... ...
Good or bad practice for Dialogs in wpf with MVVM?
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What if instead of using services, one uses a sort of Callback to facilitate interaction with the ViewModel and the View? For example, View executes a Command in the ViewModel, then when all is said and done, the ViewModel fires a Callback for the Vi...
Best practices for large solutions in Visual Studio (2008) [closed]
...aller.Database
OurStuff.App.MediaPlayer
OurStuff.App.Operator
OurStuff.App.Service.Gateway
OurStuff.App.Service.CollectionStation
OurStuff.App.ServiceLocalLauncher
OurStuff.App.StackTester
OurStuff.Auditing
OurStuff.Data
OurStuff.Database
OurStuff.Database.Constants
OurStuff.Database.ObjectModel
Our...
What's the difference between a proxy server and a reverse proxy server? [closed]
... definitions would be:
Forward Proxy: Acting on behalf of a requestor (or service consumer)
Reverse Proxy: Acting on behalf of service/content producer.
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Code signing certificate for open-source projects?
...Signing certificate is no longer available for free. It is now a paid only service.
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How to prevent multiple instances of an Activity when it is launched with different Intents
...EFAULT" />
</intent-filter>
</activity>
<service android:name="com.acme.service.LauncherIntentService" />
Launcher activity:
public static Integer lastLaunchTag = null;
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedI...
Hide options in a select list using jQuery
...re apparently expecting variable interpolation. Try this:
$("#edit-field-service-sub-cat-value option[value=" + title + "]").hide();
Note that this will probably break in various hideous ways if title contains jQuery selector metacharacters.
...
Android equivalent to NSNotificationCenter
...ers and Notification center.
First create some kind of NotificationCenter service:
public class NotificationCenter {
public static void addObserver(Context context, NotificationType notification, BroadcastReceiver responseHandler) {
LocalBroadcastManager.getInstance(context).registerReceiver...
Is it possible to await an event instead of another async method?
...Do lot of complex stuff that takes a long time
// (e.g. contact some web services)
// Wait for the user to click Continue.
continueClicked = new TaskCompletionSource<object>();
buttonContinue.Visibility = Visibility.Visible;
await continueClicked.Task;
buttonContinue.Visibility = ...
doGet and doPost in Servlets
...c class ProductsServlet extends HttpServlet {
@EJB
private ProductService productService;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
List<Product> products = productService.list();
...