This new directory contains two samples explaining the usage of the semaphore interfa...

This new directory contains two samples explaining the usage of the semaphore interface provide by the xbt layer.

The first example : sem_basic, show how to use a semaphore to manage the access of a global variable shared by multiple threads.
The second example : sem_sched, show how to use the semaphore interface to implement a simple context switch based on threads.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@4850 48e7efb5-ca39-0410-a469-dd3cf9ba447f