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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2024-08-10 RV the first version
*/
#include <rtthread.h>
#include "utest.h"
/**
* @brief Thread Preemption Test with Different Priorities.
*
* @note Create multiple threads, low-priority threads run first,
* high-priority threads preempt low-priority threads, and
* print the current status of each core in the thread's entry function.
*/
#define THREAD_PRIORITY_HIGH 21
#define THREAD_PRIORITY_LOW 30
#define THREAD_STACK_SIZE UTEST_THR_STACK_SIZE
static rt_thread_t threads[2];
static struct rt_spinlock lock;
/* High Priority Thread */
static void thread_high_entry(void *parameter)
{
uassert_true(1);
rt_spin_lock(&lock);
rt_kprintf("High priority thread is running\n");
extern long list_thread(void);
list_thread();
rt_spin_unlock(&lock);
}
/* Low Priority Thread */
static void thread_low_entry(void *parameter)
{
uassert_true(1);
rt_spin_lock(&lock);
rt_kprintf("Low priority thread is running\n");
extern long list_thread(void);
list_thread();
rt_spin_unlock(&lock);
}
static void thread_preemptions_tc(void)
{
/* Creating low-priority thread */
threads[0] = rt_thread_create("tlow", thread_low_entry, RT_NULL, THREAD_STACK_SIZE, THREAD_PRIORITY_LOW, 10);
if (threads[0] != RT_NULL)
{
uassert_true(1);
rt_thread_startup(threads[0] );
}
rt_thread_delay(5);
/* Creating high-priority thread */
threads[1] = rt_thread_create("thigh", thread_high_entry, RT_NULL, THREAD_STACK_SIZE, THREAD_PRIORITY_HIGH, 10);
if (threads[1] != RT_NULL)
{
uassert_true(1);
rt_thread_startup(threads[1]);
}
rt_thread_delay(50);
}
static rt_err_t utest_tc_init(void)
{
rt_spin_lock_init(&lock);
return RT_EOK;
}
static rt_err_t utest_tc_cleanup(void)
{
return RT_EOK;
}
static void testcase(void)
{
UTEST_UNIT_RUN(thread_preemptions_tc);
}
UTEST_TC_EXPORT(testcase, "core.smp_thread_preemptions", utest_tc_init, utest_tc_cleanup, 10);
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