| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include "test_sched.h" |
| |
| struct k_thread user_thread; |
| K_SEM_DEFINE(user_sem, 0, 1); |
| |
| ZTEST_BMEM volatile int thread_was_preempt; |
| |
| K_THREAD_STACK_DEFINE(ustack, STACK_SIZE); |
| |
| static void sleepy_thread(void *p1, void *p2, void *p3) |
| { |
| ARG_UNUSED(p1); |
| ARG_UNUSED(p2); |
| ARG_UNUSED(p3); |
| |
| k_sleep(K_FOREVER); |
| k_sem_give(&user_sem); |
| } |
| |
| void test_user_k_wakeup(void) |
| { |
| k_thread_create(&user_thread, ustack, STACK_SIZE, sleepy_thread, |
| NULL, NULL, NULL, |
| k_thread_priority_get(k_current_get()), |
| K_USER | K_INHERIT_PERMS, K_NO_WAIT); |
| |
| k_yield(); /* Let thread run and start sleeping forever */ |
| k_wakeup(&user_thread); |
| k_sem_take(&user_sem, K_FOREVER); |
| } |
| |
| static void preempt_test_thread(void *p1, void *p2, void *p3) |
| { |
| ARG_UNUSED(p1); |
| ARG_UNUSED(p2); |
| ARG_UNUSED(p3); |
| |
| thread_was_preempt = k_is_preempt_thread(); |
| k_sem_give(&user_sem); |
| } |
| |
| void test_user_k_is_preempt(void) |
| { |
| /* thread_was_preempt is volatile, and static analysis doesn't |
| * like to see it being tested inside zassert_true, because |
| * the read is treated as a "side effect" of an assertion |
| * (e.g. a read is significant for things like volatile MMIO |
| * addresses, and assertions may or may not be compiled, even |
| * though here in a test they always will be and in any case |
| * the value is a static variable above marked volatile for |
| * threadsafety). Read it into a local variable first to |
| * evade the warning. |
| */ |
| int twp; |
| |
| k_thread_create(&user_thread, ustack, STACK_SIZE, preempt_test_thread, |
| NULL, NULL, NULL, |
| k_thread_priority_get(k_current_get()), |
| K_USER | K_INHERIT_PERMS, K_NO_WAIT); |
| |
| k_sem_take(&user_sem, K_FOREVER); |
| |
| twp = thread_was_preempt; |
| zassert_false(twp, "unexpected return value"); |
| |
| k_thread_create(&user_thread, ustack, STACK_SIZE, preempt_test_thread, |
| NULL, NULL, NULL, |
| K_PRIO_PREEMPT(1), |
| K_USER | K_INHERIT_PERMS, K_NO_WAIT); |
| |
| k_sem_take(&user_sem, K_FOREVER); |
| |
| twp = thread_was_preempt; |
| zassert_true(twp, "unexpected return value"); |
| } |