zephyr

History

Anas Nashif 32a9435ea4 tests: tracing: add tests for tracing features Mostly build tests now, will be extended to verify CTF output once we have this feature in sanitycheck. Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2019-09-27 14:42:22 -04:00
..
src	cleanup: include/: move misc/printk.h to sys/printk.h	2019-06-27 22:55:49 -04:00
CMakeLists.txt	license: cleanup: add SPDX Apache-2.0 license identifier	2019-04-07 08:45:22 -04:00
README.rst	doc: add how to exit from QEMU in samples	2019-09-02 12:06:08 -04:00
prj.conf	…
sample.yaml	tests: tracing: add tests for tracing features	2019-09-27 14:42:22 -04:00

README.rst

.. _synchronization_sample:

Synchronization Sample
######################

Overview
********

A simple application that demonstrates basic sanity of the kernel.
Two threads (A and B) take turns printing a greeting message to the console,
and use sleep requests and semaphores to control the rate at which messages
are generated. This demonstrates that kernel scheduling, communication,
and timing are operating correctly.

Building and Running
********************

This project outputs to the console.  It can be built and executed
on QEMU as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/synchronization
   :host-os: unix
   :board: qemu_x86
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!

   <repeats endlessly>

Exit QEMU by pressing :kbd:`CTRL+A` :kbd:`x`.