[RTT例程练习] 1.5 优先级相同线程轮转调度

之前说过，相同优先级的线程，在自己的时间片用光之后，会被剥夺调度器，让给同优先级的其他线程。

程序：

#include <rtthread.h>static struct rt_thread thread1;static struct rt_thread thread2;static char thread1_stack[512];static char thread2_stack[512];//static rt_uint32_t t1_count = 0;//static rt_uint32_t t2_count = 0;static void thread1_entry(void* parameter){    rt_uint8_t i;    for(i = 0; i < 6; i ++)    {        rt_kprintf("Thread11111111111111111111111111:\n\r");        rt_kprintf("This is \n");        rt_kprintf("a\n");        rt_kprintf("demo\n");        rt_thread_delay(10);    }}static void thread2_entry(void* parameter){    rt_uint8_t j;    for(j = 0; j <60; j ++)    {        rt_kprintf("Thread2:\n\r");        rt_kprintf("This is \n");        rt_kprintf("a\n");        rt_kprintf("demo\n");    }}int rt_application_init(){    rt_err_t result;    result = rt_thread_init(&thread1,        "t1",        thread1_entry, RT_NULL,        &thread1_stack[0], sizeof(thread1_stack),        6, 10);    if (result == RT_EOK)        rt_thread_startup(&thread1);    result = rt_thread_init(&thread2,        "t2",        thread2_entry, RT_NULL,        &thread2_stack[0], sizeof(thread2_stack),        6, 5);    if (result == RT_EOK)        rt_thread_startup(&thread2);    return result;}/*@}*/     

输出结果：

Thread1:This isademoThread2:This isademoThread2:This isademoThread2:This isademoThread2:This isademoThread2:This isademoThread2:This isThread11111111111111111111111111:This isademoademoThread2:This isademoThread2:This isademoThread2:This isademoThread2:This isaDemo

可以看到thread2 的时间片用光，插入了thread1 的打印内容。