message-passing

Correct me if I'm wrong, but I'm surprised this hasn't been asked before on here ... It's a pretty simple difference. In a shared memory model, multiple workers all operate on the same data. This opens up a lot of the concurrency issues that are common in parallel programming. Message passing systems make workers communicate through a messaging system. Messages keep everyone seperated, so that workers cannot modify each other's data. By analogy, lets say we are working with a team on a project together. In one model, we are all crowded around a table, with all of our papers and data layed out.

I am looking for a TPL data flow block solution which can hold more than a single item, which can link to multiple target blocks, but which has the ability to forward an item to only a specific target block that passes a filter/predicate. At no time should an item be delivered to multiple target blocks at the same time, always only to the one which matches the filter or the item can be discarded. I am not fond of BroadCastBlock because, if I understand correctly, it does not guarantee delivery (or does it?) and the filtering is done on the target block side, meaning BroadCastBlock essentially

I'm trying to implement my own chrome extension on which, on a certain event, create a browser notification and fills the popup with data calculated in background.js Here is mymanifest file : { "name": "Dummy name", "description": "Description", "manifest_version": 2, "version": "1.1.3", "icons": { "16": "icon_16.png", "48": "icon_48.png", "128": "icon_128.png", "256": "icon_256.png" }, "browser_action": { "default_icon": "icon_48.png", "default_title": "Test", "default_popup": "popup.html" }, "permissions": ["background","webRequest","webRequestBlocking","webNavigation","tabs","notifications"

Is there any good and short explanation of how Actors works compared to threads? Can't a thread be seen as an actor and send messages to other threads? I see some difference, but it's not that clear for me. Can I use Actors in any language by using threads differently? Rob Lachlan The actor model operates on message passing. Individual processes (actors) are allowed to send messages asynchronously to each other. What distinguishes this from what we normally think of as the threading model, is that there is (in theory at least) no shared state. And if one believes (justifiably, I think) that

I am confused about the difference between sending items through Post() or SendAsync(). My understanding is that in all cases once an item reached the input buffer of a data block, control is returned to the calling context, correct? Then why would I ever need SendAsync? If my assumption is incorrect then I wonder, on the contrary, why anyone would ever use Post() if the whole idea of using data blocks is to establish a concurrent and async environment. I understand of course the difference technically in that Post() returns a bool whereas SendAsync returns an awaitable Task of bool. But what

I am trying to pass data between two activities that are inside of tabs. I am trying to use sendBroadcast() . With breakpoints set I never reach onReceive() . Manifest: <activity android:name=".WebResults" android:label="@string/app_name"> <intent-filter> <action android:name="com.toxy.LOAD_URL" /> </intent-filter> </activity> Activity Sender: Intent intent=new Intent(getApplicationContext(),WebResults.class); intent.setAction("com.toxy.LOAD_URL"); intent.putExtra("url",uri.toString()); sendBroadcast(intent); Activity Receiver : @Override public void onCreate(Bundle savedInstanceState) { super