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 ? |