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18cc4a8ea3
All 'real' sample application now reside under samples/ directly. the nano and micro variants will be under the specific sample directory and not split across the file system. Change-Id: I0ddf929cff7a29749aa4944b4385af058d9cc74c Signed-off-by: Anas Nashif <anas.nashif@intel.com> |
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| .. | ||
| Makefile | ||
| prj_arc.conf | ||
| prj_arm.conf | ||
| prj_x86.conf | ||
| README.txt | ||
| testcase.ini | ||
Title: Dining Philosophers
Description:
An implementation of a solution to the Dining Philosophers problem
(a classic multi-thread synchronization problem). This particular
implementation demonstrates the usage of nanokernel semaphores and
timers from multiple (6) fibers.
The philosopher always tries to get the lowest fork first (f1 then f2).
When done, he will give back the forks in the reverse order (f2 then f1).
If he gets two forks, he is EATING. Otherwise, he is THINKING.
Each Philosopher will randomly alternate between the EATING and THINKING state.
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Building and Running Project:
This nanokernel project outputs to the console. It can be built and executed
on QEMU as follows:
make qemu
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Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
make clean # discard results of previous builds
# but keep existing configuration info
or
make pristine # discard results of previous builds
# and restore pre-defined configuration info
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Sample Output:
Philosopher 0 EATING
Philosopher 1 THINKING
Philosopher 2 THINKING
Philosopher 3 EATING
Philosopher 4 THINKING
Philosopher 5 THINKING
Demo Description
----------------
An implementation of a solution to the Dining Philosophers problem
(a classic multi-thread synchronization problem). This particular
implementation demonstrates the usage of multiple (6) fibers
of differing priorities and the nanokernel semaphores and timers.