timeslice_sample.c

/* * Copyright (c) 2006-2018, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2018-08-24 yangjie the first version *//** 程序清单：相同优先级线程按照时间片轮转调度** 这个例子中将创建两个线程，每一个线程都在打印信息**/#include <rtthread.h>#define THREAD_STACK_SIZE 1024#define THREAD_PRIORITY 20#define THREAD_TIMESLICE 10/* 线程入口 */static void thread_entry(void *parameter){ rt_uint32_t value; rt_uint32_t count = 0; value = (rt_uint32_t)parameter; while (1) { if (0 == (count % 5)) { rt_kprintf("thread %d is running ,thread %d count = %d\n", value, value, count); if (count > 200) return; } count++; }}int timeslice_sample(void){ rt_thread_t tid = RT_NULL; /* 创建线程1 */ tid = rt_thread_create("thread1", thread_entry, (void *)1, THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid != RT_NULL) rt_thread_startup(tid); /* 创建线程2 */ tid = rt_thread_create("thread2", thread_entry, (void *)2, THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE - 5); if (tid != RT_NULL) rt_thread_startup(tid); return 0;}/* 导出到 msh 命令列表中 */MSH_CMD_EXPORT(timeslice_sample, timeslice sample);