| /* |
| * Copyright (c) 2018 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <ztest.h> |
| |
| #include "tests_thread_apis.h" |
| |
| static int thread2_data; |
| |
| K_SEM_DEFINE(sem_thread2, 0, 1); |
| K_SEM_DEFINE(sem_thread1, 0, 1); |
| |
| /** |
| * |
| * @brief thread2 portion to test setting the priority |
| * |
| */ |
| void thread2_set_prio_test(void) |
| { |
| /* lower thread2 priority by 5 */ |
| k_sem_take(&sem_thread2, K_FOREVER); |
| thread2_data = k_thread_priority_get(k_current_get()); |
| k_sem_give(&sem_thread1); |
| |
| /* raise thread2 priority by 10 */ |
| k_sem_take(&sem_thread2, K_FOREVER); |
| thread2_data = k_thread_priority_get(k_current_get()); |
| k_sem_give(&sem_thread1); |
| |
| /* restore thread2 priority */ |
| k_sem_take(&sem_thread2, K_FOREVER); |
| thread2_data = k_thread_priority_get(k_current_get()); |
| k_sem_give(&sem_thread1); |
| } |
| |
| /** |
| * @ingroup kernel_thread_tests |
| * @brief Test the k_thread_priority_set() API |
| * |
| * @see k_thread_priority_set(), k_thread_priority_get() |
| */ |
| void test_threads_priority_set(void) |
| { |
| int rv; |
| int prio = k_thread_priority_get(k_current_get()); |
| |
| /* Lower the priority of the current thread (thread1) */ |
| k_thread_priority_set(k_current_get(), prio + 2); |
| rv = k_thread_priority_get(k_current_get()); |
| zassert_equal(rv, prio + 2, |
| "Expected priority to be changed to %d, not %d\n", |
| prio + 2, rv); |
| |
| /* Raise the priority of the current thread (thread1) */ |
| k_thread_priority_set(k_current_get(), prio - 2); |
| rv = k_thread_priority_get(k_current_get()); |
| zassert_equal(rv, prio - 2, |
| "Expected priority to be changed to %d, not %d\n", |
| prio - 2, rv); |
| |
| /* Restore the priority of the current thread (thread1) */ |
| k_thread_priority_set(k_current_get(), prio); |
| rv = k_thread_priority_get(k_current_get()); |
| zassert_equal(rv, prio, |
| "Expected priority to be changed to %d, not %d\n", |
| prio, rv); |
| |
| /* create thread with lower priority */ |
| int thread2_prio = prio + 1; |
| |
| k_tid_t thread2_id = k_thread_create(&tdata, tstack, STACK_SIZE, |
| (k_thread_entry_t)thread2_set_prio_test, |
| NULL, NULL, NULL, thread2_prio, 0, |
| K_NO_WAIT); |
| |
| /* Lower the priority of thread2 */ |
| k_thread_priority_set(thread2_id, thread2_prio + 2); |
| k_sem_give(&sem_thread2); |
| k_sem_take(&sem_thread1, K_FOREVER); |
| zassert_equal(thread2_data, thread2_prio + 2, |
| "Expected priority to be changed to %d, not %d\n", |
| thread2_prio + 2, thread2_data); |
| |
| /* Raise the priority of thread2 */ |
| k_thread_priority_set(thread2_id, thread2_prio - 2); |
| k_sem_give(&sem_thread2); |
| k_sem_take(&sem_thread1, K_FOREVER); |
| zassert_equal(thread2_data, thread2_prio - 2, |
| "Expected priority to be changed to %d, not %d\n", |
| thread2_prio - 2, thread2_data); |
| |
| /* Restore the priority of thread2 */ |
| k_thread_priority_set(thread2_id, thread2_prio); |
| k_sem_give(&sem_thread2); |
| k_sem_take(&sem_thread1, K_FOREVER); |
| zassert_equal(thread2_data, thread2_prio, |
| "Expected priority to be changed to %d, not %d\n", |
| thread2_prio, thread2_data); |
| } |