WiFi-IoT 鸿蒙开发套件样例开发

Posted 2022-06-28 润和HiHope社区

HiSpark WiFi-IoT鸿蒙开发套件 首发于HDC 2020，是首批支持HarmonyOS 2.0的开发套件，亦是鸿蒙官方推荐套件，由润和软件HiHope量身打造，已在鸿蒙社区和广大鸿蒙开发者中得到广泛应用。 一、Thread API osThreadNew() osThreadId_t osThreadNew(osThreadFunc_t        func, void *argument,const osThreadAttr_t *attr )        复制 注意 :不能在中断服务调用该函数 参数 osThreadTerminate() osStatus_t osThreadTerminate (osThreadId_t thread_id)复制 二、代码分析 创建线程，创建成功则打印线程名字和线程ID osThreadId_t newThread(char *name, osThreadFunc_t func, void *arg)     osThreadAttr_t attr =         name, 0, NULL, 0, NULL, 1024*2, osPriorityNormal, 0, 0    ;    osThreadId_t tid = osThreadNew(func, arg, &attr);    if (tid == NULL)         printf("osThreadNew(%s) faiLED.\\r\\n", name);    else         printf("osThreadNew(%s) success, thread id: %d.\\r\\n", name, tid);        return tid;复制 该函数首先会打印自己的参数，然后对全局变量count进行循环+1操作，之后会打印count的值 void threadTest(void *arg)     static int count = 0;    printf("%s\\r\\n",(char *)arg);    osThreadId_t tid = osThreadGetId();    printf("threadTest osThreadGetId, thread id:%p\\r\\n", tid);    while (1)         count++;        printf("threadTest, count: %d.\\r\\n", count);        osDelay(20);    复制 主程序rtosv2_thread_main创建线程并运行，并使用上述API进行相关操作，最后终止所创建的线程。 void rtosv2_thread_main(void *arg)     (void)arg;    osThreadId_t tid=newThread("test_thread", threadTest, "This is a test thread.");    const char *t_name = osThreadGetName(tid);    printf("[Thread Test]osThreadGetName, thread name: %s.\\r\\n", t_name);    osThreadState_t state = osThreadGetState(tid);    printf("[Thread Test]osThreadGetState, state :%d.\\r\\n", state);    osStatus_t status = osThreadSetPriority(tid, osPriorityNormal4);    printf("[Thread Test]osThreadSetPriority, status: %d.\\r\\n", status);    osPriority_t pri = osThreadGetPriority (tid);       printf("[Thread Test]osThreadGetPriority, priority: %d.\\r\\n", pri);    status = osThreadSuspend(tid);    printf("[Thread Test]osThreadSuspend, status: %d.\\r\\n", status);      status = osThreadResume(tid);    printf("[Thread Test]osThreadResume, status: %d.\\r\\n", status);    uint32_t stacksize = osThreadGetStackSize(tid);    printf("[Thread Test]osThreadGetStackSize, stacksize: %d.\\r\\n", stacksize);    uint32_t stackspace = osThreadGetStackSpace(tid);    printf("[Thread Test]osThreadGetStackSpace, stackspace: %d.\\r\\n", stackspace);    uint32_t t_count = osThreadGetCount();    printf("[Thread Test]osThreadGetCount, count: %d.\\r\\n", t_count);      osDelay(100);    status = osThreadTerminate(tid);    printf("[Thread Test]osThreadTerminate, status: %d.\\r\\n", status); 三、如何编译 将此目录下的 thread.c 和 BUILD.gn 复制到openharmony源码的applications\\sample\\wifi-iot\\app\\iothardware目录下， 修改openharmony源码的applications\\sample\\wifi-iot\\app\\BUILD.gn文件，将其中的 features 改为：     features = [        "iothardware:thread_demo",    ]复制 3.在openharmony源码顶层目录执行：python build.py wifiiot 四、运行结果 [Thread Test] osThreadNew(test_thread) success.[Thread Test] osThreadGetName, thread name: test_thread.[Thread Test] osThreadGetState, state :1.[Thread Test] This is a test thread.  <-testThread log[Thread Test] threadTest osThreadGetId, thread id:0xe8544[Thread Test] threadTest, count: 1.   <-testThread log[Thread Test] osThreadSetPriority, status: 0.[Thread Test] osThreadGetPriority, priority: 28.[Thread Test] osThreadSuspend, status: 0.[Thread Test] osThreadResume, status: 0.[Thread Test] osThreadGetStackSize, stacksize: 2048.[Thread Test] osThreadGetStackSpace, stackspace: 1144.[Thread Test] osThreadGetCount, count: 12.[Thread Test] threadTest, count: 2.   <-testThread log[Thread Test] threadTest, count: 3.   <-testThread log[Thread Test] threadTest, count: 4.   <-testThread log[Thread Test] threadTest, count: 5.   <-testThread log[Thread Test] threadTest, count: 6.   <-testThread log[Thread Test] osThreadTerminate, status: 0.复制