/* * 程序清单:动态线程 * * 这个程序会初始化2个动态线程,它们拥有共同的入口函数,但参数不相同 */ #include #include "tc_comm.h" /* 指向线程控制块的指针 */ static rt_thread_t tid1 = RT_NULL; static rt_thread_t tid2 = RT_NULL; static rt_thread_t tid3 = RT_NULL; static struct rt_messagequeue mq; static char msg_pool[2048]; static void thread1_entry(void* parameter) { char buf[128]; while (1) { rt_memset(&buf[0], 0, sizeof(buf)); if (rt_mq_recv(&mq, &buf[0], sizeof(buf), RT_WAITING_FOREVER) == RT_EOK) { rt_kprintf("thread1: recv msg from message queue, the content:%s\n", buf); } rt_thread_delay(100); } } static void thread2_entry(void* parameter) { int i, result; char buf[] = "this is message No.x"; while (1) { for (i = 0; i < 10; i++) { buf[sizeof(buf) - 2] = '0' + i; rt_kprintf("thread2: send message - %s\n", buf); result = rt_mq_send(&mq, &buf[0], sizeof(buf)); if ( result == -RT_EFULL); { rt_kprintf("message queue full, delay 10s\n"); rt_thread_delay(1000); } } rt_thread_delay(100); } } static void thread3_entry(void* parameter) { char buf[] = "this is an urgent message!"; while (1) { rt_kprintf("thread3: send an urgent message\n"); rt_mq_urgent(&mq, &buf[0], sizeof(buf)); rt_thread_delay(250); } } int messageq_simple_init() { rt_mq_init(&mq, "mqt", &msg_pool[0], 128 - sizeof(void*), sizeof(msg_pool), RT_IPC_FLAG_FIFO); /* 创建线程1 */ tid1 = rt_thread_create("t1", thread1_entry, RT_NULL, /* 线程入口是thread1_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid1 != RT_NULL) rt_thread_startup(tid1); else tc_stat(TC_STAT_END | TC_STAT_FAILED); /* 创建线程2 */ tid2 = rt_thread_create("t2", thread2_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid2 != RT_NULL) rt_thread_startup(tid2); else tc_stat(TC_STAT_END | TC_STAT_FAILED); /* 创建线程3 */ tid3 = rt_thread_create("t3", thread3_entry, RT_NULL, /* 线程入口是thread2_entry, 入口参数是RT_NULL */ THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); if (tid3 != RT_NULL) rt_thread_startup(tid3); else tc_stat(TC_STAT_END | TC_STAT_FAILED); return 0; } #ifdef RT_USING_TC static void _tc_cleanup() { /* 调度器上锁,上锁后,将不再切换到其他线程,仅响应中断 */ rt_enter_critical(); /* 删除线程 */ if (tid1 != RT_NULL && tid1->stat != RT_THREAD_CLOSE) rt_thread_delete(tid1); if (tid2 != RT_NULL && tid2->stat != RT_THREAD_CLOSE) rt_thread_delete(tid2); if (tid3 != RT_NULL && tid3->stat != RT_THREAD_CLOSE) rt_thread_delete(tid3); /* 执行消息队列脱离 */ rt_mq_detach(&mq); /* 调度器解锁 */ rt_exit_critical(); /* 设置TestCase状态 */ tc_done(TC_STAT_PASSED); } int _tc_messageq_simple() { /* 设置TestCase清理回调函数 */ tc_cleanup(_tc_cleanup); messageq_simple_init(); /* 返回TestCase运行的最长时间 */ return 100; } /* 输出函数命令到finsh shell中 */ FINSH_FUNCTION_EXPORT(_tc_messageq_simple, a simple message queue example); #else /* 用户应用入口 */ int rt_application_init() { messageq_simple_init(); return 0; } #endif