Code Samples & Tutorials

Shell Operations

• Ashley Sander's tokenizer
• Input Redirection Example
• Output Redirection Example
• Pipe Example
• Signals Example

POSIX Threads

If you need threads and you are programming in any UNIX system with C or C++, the following tutorials are useful.

Tutorials

• Tutorial by Andrae Muys
• YoLinux Tutorial
• LUPG Tutorial
• LLNL Tutorial
• The Official POSIX Threads Tutorial

Sample Code

• Simple example of POSIX threads.
• Simple thread synchronization example using mutexes.
• More complicated example that includes synchronization of threads (using mutexes and condition variables).
• The producer-consumer example (no synchronization).
• The producer-consumer example (synchronization using mutexes and condition variables).
• The producer-consumer example (synchronization using semaphores). It requires the semaphore library found here.

Sockets

Tutorials

The following are some online tutorials for C (and C++) sockets. They are ordered by detail of information given. The first two of them should be enough for most sockets applications. The others offer more in-depth information and may be helpful to discover issues when debugging your programs.

• First Tutorial
• Second Tutorial
• Third Tutorial
• Fourth Tutorial

Other Resources and Sample Code

• UNIX Socket FAQ - Powered by vBulletin
• Practical Sockets Library
• A client-server sockets example. The server. The Client.

Subversion - CVS - Other versioning systems

For all of you that want to use a versioning system like CVS or subversion: (a) Congratulations! You are highly recommended to! (b) It will be easier to use subversion, as a Subversion server is already setup in the CS department. To access it, you need to go to the CS homepage, login (click the "Student & Staff Login" button on the upper right) and select the "SVN Manager". From there, you can create a new repository for your code. What is useful, is that you can add permissions to other people (like, your partners), so that all of you can have a single repository for your code.

This tutorial should get you up and running (you only need to know stuff from "Check out a working copy" and on, as you can setup your repository from the CS website). This is the sequel of the first tutorial. You may need to read from "Collaborative Use of Subversion" and on, to understand what is happening each time you checkout, update or commit your project.

Yannis Drougas