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/*
* Copyright (c) 2006-2025, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2025-07-03 rcitach test case for context_switch
*/
#include <rtthread.h>
#include <rthw.h>
#include <rtdevice.h>
#include <utest.h>
#include <utest_assert.h>
#include <perf_tc.h>
static rt_sem_t sem1, sem2;
static rt_sem_t complete_sem = RT_NULL;
static void local_modify_time(rt_perf_t *perf)
{
if(perf)
perf->real_time = perf->real_time - perf->tmp_time;
}
static void perf_thread_event1(void *parameter)
{
while (1)
{
rt_sem_take(sem1, RT_WAITING_FOREVER);
rt_sem_release(sem2);
}
}
static void perf_thread_event2(void *parameter)
{
rt_perf_t *perf = (rt_perf_t *)parameter;
for (rt_uint32_t i = 0; i < RT_UTEST_SYS_PERF_TC_COUNT; i++)
{
perf->tmp_time = 0;
rt_perf_start(perf);
rt_sem_take(sem2, RT_WAITING_FOREVER);
rt_sem_release(sem2);
rt_perf_stop(perf);
rt_mutex_take(perf->lock,RT_WAITING_FOREVER);
perf->count -= 1;
perf->tmp_time = perf->real_time;
rt_mutex_release(perf->lock);
rt_perf_start(perf);
rt_sem_take(sem2, RT_WAITING_FOREVER);
rt_sem_release(sem1);
rt_perf_stop(perf);
}
rt_sem_release(complete_sem);
}
rt_err_t context_switch_test(rt_perf_t *perf)
{
rt_thread_t thread1 = RT_NULL;
rt_thread_t thread2 = RT_NULL;
# if __STDC_VERSION__ >= 199901L
rt_strcpy(perf->name,__func__);
#else
rt_strcpy(perf->name,"context_switch_test");
#endif
perf->local_modify = local_modify_time;
sem1 = rt_sem_create("sem1", 1, RT_IPC_FLAG_FIFO);
sem2 = rt_sem_create("sem2", 0, RT_IPC_FLAG_FIFO);
complete_sem = rt_sem_create("complete_sem", 0, RT_IPC_FLAG_FIFO);
thread1 = rt_thread_create("perf_thread_event1", perf_thread_event1, perf,
THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
if (thread1 == RT_NULL)
{
LOG_E("perf_thread_event1 create failed.");
return -RT_ERROR;
}
thread2 = rt_thread_create("perf_thread_event2", perf_thread_event2, perf,
THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
if (thread2 == RT_NULL)
{
LOG_E("perf_thread_event2 create failed.");
return -RT_ERROR;
}
rt_thread_startup(thread1);
rt_thread_startup(thread2);
rt_sem_take(complete_sem, RT_WAITING_FOREVER);
rt_perf_dump(perf);
rt_thread_delete(thread1);
rt_sem_delete(complete_sem);
rt_sem_delete(sem1);
rt_sem_delete(sem2);
return RT_EOK;
}
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