| Title: Semaphore APIs |
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| Description: |
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| This test verifies that the nanokernel semaphore APIs operate as expected. |
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| Building and Running Project: |
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| This nanokernel project outputs to the console. It can be built and executed |
| on QEMU as follows: |
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| make qemu |
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| Troubleshooting: |
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| Problems caused by out-dated project information can be addressed by |
| issuing one of the following commands then rebuilding the project: |
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| 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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| --------------------------------------------------------------------------- |
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| Sample Output: |
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| tc_start() - Test Nanokernel Semaphores |
| Nano objects initialized |
| Giving and taking a semaphore in a task (non-blocking) |
| Giving and taking a semaphore in an ISR (non-blocking) |
| Giving and taking a semaphore in a fiber (non-blocking) |
| Semaphore from the task woke the fiber |
| Semaphore from the fiber woke the task |
| Semaphore from the ISR woke the task. |
| First pass |
| multiple-waiter fiber 0 trying to get semaphore... |
| multiple-waiter fiber 1 trying to get semaphore... |
| multiple-waiter fiber 2 trying to get semaphore... |
| multiple-waiter fiber 0 acquired semaphore, sending reply |
| multiple-waiter fiber 1 acquired semaphore, sending reply |
| multiple-waiter fiber 2 acquired semaphore, sending reply |
| Task took multi-waiter reply semaphore 3 times, as expected. |
| Second pass |
| multiple-waiter fiber 0 trying to get semaphore... |
| multiple-waiter fiber 1 trying to get semaphore... |
| multiple-waiter fiber 2 trying to get semaphore... |
| multiple-waiter fiber 0 acquired semaphore, sending reply |
| multiple-waiter fiber 1 acquired semaphore, sending reply |
| multiple-waiter fiber 2 acquired semaphore, sending reply |
| Task took multi-waiter reply semaphore 3 times, as expected. |
| test nano_task_sem_take() with timeout > 0 |
| nano_task_sem_take() timed out as expected |
| nano_task_sem_take() got sem in time, as expected |
| testing timeouts of 5 fibers on same sem |
| got fiber (q order: 2, t/o: 10, sem: 200001c8) as expected |
| got fiber (q order: 3, t/o: 15, sem: 200001c8) as expected |
| got fiber (q order: 0, t/o: 20, sem: 200001c8) as expected |
| got fiber (q order: 4, t/o: 25, sem: 200001c8) as expected |
| got fiber (q order: 1, t/o: 30, sem: 200001c8) as expected |
| testing timeouts of 9 fibers on different sems |
| got fiber (q order: 0, t/o: 10, sem: 200001d4) as expected |
| got fiber (q order: 5, t/o: 15, sem: 200001c8) as expected |
| got fiber (q order: 7, t/o: 20, sem: 200001c8) as expected |
| got fiber (q order: 1, t/o: 25, sem: 200001c8) as expected |
| got fiber (q order: 8, t/o: 30, sem: 200001d4) as expected |
| got fiber (q order: 2, t/o: 35, sem: 200001c8) as expected |
| got fiber (q order: 6, t/o: 40, sem: 200001c8) as expected |
| got fiber (q order: 4, t/o: 45, sem: 200001d4) as expected |
| got fiber (q order: 3, t/o: 50, sem: 200001d4) as expected |
| testing 5 fibers timing out, but obtaining the sem in time |
| (except the last one, which times out) |
| got fiber (q order: 0, t/o: 20, sem: 200001c8) as expected |
| got fiber (q order: 1, t/o: 30, sem: 200001c8) as expected |
| got fiber (q order: 2, t/o: 10, sem: 200001c8) as expected |
| got fiber (q order: 3, t/o: 15, sem: 200001c8) as expected |
| got fiber (q order: 4, t/o: 25, sem: 200001c8) as expected |
| =================================================================== |
| PASS - main. |
| =================================================================== |
| PROJECT EXECUTION SUCCESSFUL |
