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Raspberry Pi camera

Posted 06-02-2013 at 06:37 AM by brianL

Been messing about with the RasPiCam, here's a test shot of my favourite subject:
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File Type: jpg testing5_resized.jpg (51.5 KB, 9 views)
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Old

Using PIPES for Interprocess Communications

Posted 06-01-2013 at 05:46 PM by rtmistler

When you look at Linux documentation, there are a variety of ways to communicate across processes. I've tried a few, http://tldp.org/LDP/tlk/ipc/ipc.html, including signals, semaphores, IPC, shared memory, and PIPES.

My Summary of Each IPC Type

Signals
Signals are singular indicators which carry very one-dimensional information. They are fast, and they are supported by system calls where you can send one easily or wait, blocking or non-blocking to see if you've...
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Old

Computer Mad Science Continues To Baffle The Experts...

Posted 06-01-2013 at 08:24 AM by rainbowsally
Updated 08-06-2014 at 07:26 AM by rainbowsally (new dl site)

[UPDATE: (2013-06-10) The uitool link has been updated below. Better version, tested, has no mc2 lib deps.]

Been busy elsewhere for a while, but now I'm back, I think.

Today's Features:
  • A ui tool for creating code skeletons.
  • A cool Sudoku puzzle solver (with save/restore file funcs).
  • A qt graphics lib with mc2-generated makefiles (qwt).
  • Notes about why mc2 kicks &ss.
  • Notes about kregeditor.
  • And the make-based installer fixups for root system installations.
...
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Old

A long break after a long time

Posted 05-31-2013 at 06:05 AM by TheIndependentAquarius
Updated 05-31-2013 at 07:22 AM by TheIndependentAquarius

Am very happy and relaxed currently since I'll be on a
leave for four months tomorrow onwards. My office is
quite far away from my house hence I have always been
physically and mentally stressed by traveling that far!

Also, I am not a part of any big team in the office.
For past 3 years I have been working alone - talking to
myself and the walls!
Working alone always is NOT fun! Yes I know what I
am talking about.

...
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Views 4609 Comments 4 TheIndependentAquarius is offline
Old

Creating a daemon to launch and monitor your processes

Posted 05-30-2013 at 01:11 PM by rtmistler

Most of my Linux application architectures are really a collection of processes which are started at boot and need be maintained in case something unexpected occurs. Long ago I started with daemons, but also learned and developed a few additional concepts.

The links have changed over the years, but if you search for "linux daemon" and go down some of the search results, you'll find similar entries as:

http://www.netzmafia.de/skripten/uni...mon-howto.html...
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Views 66 Comments 0 rtmistler is offline

  



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