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2
votes
2answers
157 views

Is WCF strictly an asynchonous comms platform?

Since I last had to do any comms/network programming, the field has exploded with acronyms. In fact, networking almost feels like it is now described by a whole new language. The very name "Windows ...
0
votes
1answer
93 views

Spreading incoming batched data into a real-time stream

I would like to display some events in 'real-time'. However, I must fetch the data from another source. I can request the last X minutes, though the source is updated approximately every 5 minutes. ...
2
votes
0answers
70 views

Cross-compiling Java app to run directly on ARM

Please note: although I am using ARM SAM3X8E in this example, I'm just using that as a concrete example, and the answer to this question could easily be given using any other MCU such as AVR, etc. I ...
1
vote
0answers
42 views

Semaphore : one for each shared resource?

Normally semaphores are implemented as integer variables. The value of a semaphore represents initially the number of processes that are allowed to access the shared resource at the same time, which ...
1
vote
0answers
271 views

Multiple long polling requests: bad idea?

I am designing a web server that handles multiple things such as a user-to-user chat, a user-to-group chat, friends request, forum etc. The chats have to be real-time chats, the friends requests ...
1
vote
0answers
385 views

Apply filter in Kafka Queue

Is it possible to apply a filter on the Kafka stream of topic? What I want to do is filter out messages while consuming and then run some custom logic on top of it. It is a sort of thing that Storm ...
1
vote
0answers
341 views

Atmosphere + Long Polling : No message distribution?

I'm experiencing a strange behavior with Atmosphere + Long Polling. I'd like to have a broadcaster per user, so I have registered a broadcaster on resource suspension with id : /user/. I use ...
0
votes
0answers
25 views

Correct definition of “bandwidth preserving algorithms” in real-time scheduling?

I've seen conflicting definitions for the term "bandwidth preserving algorithms". The two definitions I've seen are: Any spare CPU capacity is used for aperiodic processes. One or more periodic ...