LinuxQuestions.org - Blog Entries

Sockets - UDP RX (recieve/transmit) terminal example

Posted 01-17-2013 at 06:15 PM by rainbowsally
Updated 01-17-2013 at 06:16 PM by rainbowsally

Tags computer mad science, mc2, simple c, sockets

Sockets - UDP RX (recieve/transmit) terminal example
Today's feature:

A UDP file server and client using linux sockets.
A terminal app for those who don't have libLQ-qt and mc2.

[This is for our LQ-less friends. A libLQ version using a qt gui but NOT qt sockets should be forthcoming shortly.]

This upload is pushing the size limit but it's interesting to see how the broadcast channel is set up (in inc/broadcast-rx.c) and how the parts of the files are picked up...

rainbowsally

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mini-term in qt4

Posted 01-17-2013 at 03:34 AM by rainbowsally
Updated 08-06-2014 at 07:58 AM by rainbowsally

Tags c++, compiling, computer mad science, qt4

mini-term in qt4.

Today's features:

A simple terminal-like application built from a qt4 class that can be used for other stuff too.
The present application can run shell commands and has copy/paste (ctrl-c, ctrl-v) capabilitity.
Another example of the Windows-like api so that C/C++ code can run in Qt4.
Runs the custom code (terminal in this case) inside a QT 'exec' loop... sorta. We call it 'run()'.

Screenshot:
http://rainbowsally.org/rainbowsally...iterm-test.png...

rainbowsally

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QT4 -- Having trouble with qInitResouces_<appname>() ?

Posted 01-14-2013 at 03:46 AM by rainbowsally
Updated 01-14-2013 at 04:01 AM by rainbowsally

Tags c++, compiling, computer mad science, qt4

Having trouble with qInitResouces_<appname>()?

Try this.

Code:

#ifdef Q_INIT_RESOURCE
#undef Q_INIT_RESOURCE
#endif

#define Q_INIT_RESOURCE(name) extern void qInitResources_##name()

The version of this macro in qglobal.h could never have ever worked.

If you enjoy digging into the low level stuff, I think you'll be amused by the context of this bug. ;-)

- The Computer Mad Science Team...

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Parser Test 3 (A Return Stack & Compiler)

Posted 01-03-2013 at 09:53 AM by rainbowsally
Updated 01-10-2013 at 06:05 PM by rainbowsally

Tags computer mad science, debugger, mc2, parsing, simple c

Parser Test 3 (A Return Stack & Compiler)

A self extractor for the 'lib' files that we include for this (pretty cute) little calculator are here.
http://www.linuxquestions.org/questi...wsally-615861/

Re: the compiler part. It's not much of a compiler, but it serves as a proof of concept. (It's used internally, the program is not compiled.)

Before we dig in here, I should say...

Bug in Parser Test 2.

...

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Parser Test 1

Posted 01-02-2013 at 08:24 PM by rainbowsally
Updated 01-02-2013 at 08:26 PM by rainbowsally

Tags computer mad science, debugger, mc2, parsing, simple c

Parser Test 1

------------------------------------

See the previous blog entry: "Playing with parsing" here.
http://www.linuxquestions.org/questi...wsally-615861/
to grab the files we need to include for these tests and a working mc2 definitions file for those who have mc2. Type "mc2 -init" first time. After that "make update" will add/remove files from the makefile.

[Note that we can link OR include...

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