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
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