OpenHarmony开发05 —— 操作系统实验之线程

OpenHarmony开发05 —— 操作系统实验之线程

[实验指导文档](OpenHarmony/vendor_hisilicon - Gitee.com)

1. 首先将代码thread_demo/00_thread拷贝到程序目录下

2. 参照指导文档，我们修改app/BUILD.gn,并且修改：

   import("//build/lite/config/component/lite_component.gni")
   
   lite_component("app") {
       features = [
           "iothardware:thread_demo",
       ]
   }
   

3. 在openharmony源码顶层目录执行python3 build.py wifiiot

   

   发现报错[OHOS ERROR] /home/ros/Documents/DevEco/Projects/OpenHarmony-v3.1-Release/build/lite/components/ohos_builds not found

4. 在网上一番搜索，先执行python3 -m pip install --user ohos-build

   

5. 但是之后也没有解决，于是换一种思路，直接更改my_first_app

   // helloworld.c
   #include <stdio.h>
   #include <unistd.h>
   #include "ohos_init.h"
   #include "cmsis_os2.h"
   
   #define STACK_SIZE 1024
   #define OS_DELAY 100
   #define OS_DELAYONE 20
   
   osThreadId_t newThread(char *name, osThreadFunc_t func, int*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("[Thread Test] osThreadNew(%s) failed.\r\n", name);
       } else {
           printf("[Thread Test] osThreadNew(%s) success, thread id: %d.\r\n", name, tid);
       }
       return tid;
   }
   
   void threadTest(int *arg)
   {
       static int count = 0;
       printf("%s\r\n", (char *)arg);
       osThreadId_t tid = osThreadGetId();
       printf("[Thread Test] threadTest osThreadGetId, thread id:%p\r\n", tid);
       while (1) {
           count++;
           printf("[Thread Test] threadTest, count: %d.\r\n", count);
           osDelay(OS_DELAYONE);
       }
   }
   
   void rtosv2_thread_main(int *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: %u.\r\n", stacksize);
   
       uint32_t stackspace = osThreadGetStackSpace(tid);
       printf("[Thread Test] osThreadGetStackSpace, stackspace: %u.\r\n", stackspace);
   
       uint32_t t_count = osThreadGetCount();
       printf("[Thread Test] osThreadGetCount, count: %u.\r\n", t_count);
   
       osDelay(OS_DELAY);
       status = osThreadTerminate(tid);
       printf("[Thread Test] osThreadTerminate, status: %d.\r\n", status);
   }
   
   void HelloWorld(void)
   {
       osThreadAttr_t attr;
       attr.name = "rtosv2_thread_main";
       attr.attr_bits = 0U;
       attr.cb_mem = NULL;
       attr.cb_size = 0U;
       attr.stack_mem = NULL;
       attr.stack_size = STACK_SIZE;
       attr.priority = osPriorityNormal;
   
       if (osThreadNew((osThreadFunc_t)rtosv2_thread_main, NULL, &attr) == NULL) {
           printf("[ThreadTestTask] Failed to create rtosv2_thread_main!\n");
       }
   }
   //SYS_RUN(HelloWorld);
   APP_FEATURE_INIT(HelloWorld);
   

//build.gn
static_library("myapp") {
    sources = [
        "hello_world.c",
    ]
    include_dirs = [
        "//utils/native/lite/include",
        "//commonlibrary/utils_lite/include",
        "//kernel/liteos_m/components/cmsis/2.0",
    ]
}

6. 运行结果：