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demos-os-linux

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demos-linux is a project to demo and explore the Linux user space C/C++ API

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## demos-os-linux

version: 0.0.1

description: demos-os-linux is a project to demo and explore the Linux user space C/C++ API

website: https://veltzer.github.io/demos-os-linux

## Build

![build](https://github.com/veltzer/demos-os-linux/workflows/build/badge.svg)
![image](https://github.com/veltzer/demos-os-linux/workflows/image/badge.svg)

demos-os-linux is a project to demo and explore the Linux user space C/C++ API

## Contact

chat with me at [![gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/veltzer/mark.veltzer)

This project is a source code repository for instructors or expert programmers
who want to explore the Linux C/C++ API.

## Number of examples and their selection

Currently there are 1114 examples in this repo.
These are the examples I found are useful in explaining the Linux API.
The idea is to provide a good coverage of all major features and to resolve disputes
about exactly how a certain API works.

## Topics covered by the examples
* Multi-threading
* Multi-processing
* Locking
* Calling system calls without C
* Performance
* Coding in assembly
* Various compiler directives
* Many more...

## Platforms supported
Only ia64 is supported. I used to support i386 but I don't have a 32 bit
machine anymore.
Other platforms will be supported if someone is willing to do the work and submit
the patches.

## Contributing
This project needs help. fork, commit and request me to pull.
Just open a github account, modify and add examples, commit and ask me to pull...
A lot of the code is documented but some of it is not. More documentation would be welcome.
I would give attribution to whomever contributes.

## License
Code is licensed GPL3 and I hold the copyright unless explicitly stolen as attributed in the source code.
I encourage people to use this source code as aid for instructing courses.
Please give me some credit if you do wind up using this package and consider dropping
me a note about the fact that you did use the package so I could feel good...

## Similar projects
* Michael Kerrisk, the maintainer and author of many of the Linux manual pages has a similar project he calls
TLPI (The Linux Programming Interface) of programs he used in his book of the same title. You can find
it here http://man7.org/tlpi/code/.
* https://github.com/bradfa/tlpi-dist
* https://github.com/dev-area/linux
* https://github.com/tsuna/contextswitch
* https://github.com/gurugio/lowlevelprogramming-university
* https://github.com/devendranaga/linux-systems-programming-with-c
* https://github.com/devendranaga/gists
* https://github.com/PacktPublishing/Linux-Kernel-Programming
* https://github.com/beejjorgensen/bgnet
* https://github.com/yuzhidi/AdvancedLinuxProgramming
* https://github.com/Light-City/CPlusPlusThings
* https://github.com/AnthonyCalandra/modern-cpp-features
* https://github.com/angrave/SystemProgramming/wiki

## Using it
* you need python on your machine:
    try:
        `python --version`
    if python is missing then:
        for deb based distributions (debian, ubuntu, ...) do:
            `sudo apt-get install python`
        for rpm based distributions (fedora, redhat, centos,...) do:
            `sudo yum install python`
* clone the examples: `git clone https://github.com/veltzer/demos-os-linux.git`
* cd into it: `cd demos-os-linux`
* install the missing packages and headers needed to compile and run this project `./scripts/ubuntu_install.py`
    Mind you this only works for 15.10 and will install a ton of stuff.
    If you don't want this ton of installations and only want to checkout specific examples
    compile the individual examples as described below.
    if you are on a different Linux distribution try to get as much of these for your platform
    as you can. If you really into contributing I would love a `redhat_install.py` or some such...
    then use `make`
* compiling a specific example
        `make src/examples/performance/cache_misser.elf`
    the name of the elf binary is the same as the example source code with .elf instead of
    .[c|cc].
    You must be at the root of the project to issue the `make` command.
* the most important part: tweak the examples, try to prove me (my comments) wrong, have fun!

demos-os-linux

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