2024-01-15 00:23:40 +08:00
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.. _posix-philosophers-sample:
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POSIX Philosophers
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##################
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Overview
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********
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This sample implements Zephyr's :ref:`Dining Philosophers Sample <dining-philosophers-sample>` using the
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:ref:`POSIX API <posix_support>`. The source code for this sample can be found under
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:file:`samples/posix/philosophers`.
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Building and Running
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********************
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2024-01-31 13:24:09 +08:00
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This project outputs to the console. It can be built and executed on QEMU as follows:
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2024-01-15 00:23:40 +08:00
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.. zephyr-app-commands::
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:zephyr-app: samples/posix/philosophers
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:host-os: unix
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:board: qemu_riscv64
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:goals: run
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:compact:
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Sample Output
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=============
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.. code-block:: console
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Philosopher 0 [P: 3] HOLDING ONE FORK
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Philosopher 1 [P: 2] HOLDING ONE FORK
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Philosopher 2 [P: 1] EATING [ 1900 ms ]
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Philosopher 3 [P: 0] THINKING [ 2500 ms ]
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Philosopher 4 [C:-1] THINKING [ 2200 ms ]
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Philosopher 5 [C:-2] THINKING [ 1700 ms ]
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Exit QEMU by pressing :kbd:`CTRL+A` :kbd:`x`.
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Debugging
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*********
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Like the original philosophers sample, the POSIX variant also enables
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:kconfig:option:`CONFIG_DEBUG_THREAD_INFO` by default.
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.. zephyr-app-commands::
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:zephyr-app: samples/philosophers
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:host-os: unix
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:board: <board_name>
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:goals: debug
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:compact:
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Additional Information
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**********************
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For additional information, please refer to the
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:ref:`Dining Philosophers Sample <dining-philosophers-sample>`.
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