Windows10 VS2017 C++多线程传参和等待线程结束

Posted on 2018-12-28 14:58  #大囚长#  阅读(2414)  评论(0)  编辑  收藏  举报 
 1 #include "pch.h"
 2 #include <iostream>
 3 #include <windows.h>
 4 
 5 using namespace std;
 6 
 7 typedef struct MyData
 8 {
 9     const char* str;
10 }MYDATA;
11 
12 //线程函数
13 DWORD WINAPI Fun(LPVOID lpParamter)
14 {
15     MYDATA *pmd = (MYDATA *)lpParamter;
16     for (int i = 0; i < 10; i++)
17     {
18         cout << "Displaying " << pmd->str << endl;
19         Sleep(500);
20     }
21     return 0;
22 
23 }
24 
25 int main()
26 {
27     //使用struct传递参数
28     MYDATA xstr;
29     xstr.str = "你好!";
30 
31     //使用GetExitCodeThread()轮询检查
32     //DWORD exitCode = 0;
33     //HANDLE hThread = CreateThread(NULL, 0, Fun, &xstr, 0, NULL);
34     //while (1) {
35     //    GetExitCodeThread(hThread, &exitCode); // 严重浪费 CPU 时间
36     //    if (STILL_ACTIVE != exitCode)
37     //        break;
38     //}
39     //CloseHandle(hThread);
40 
41     //WaitForSingleObject()，cpu使用率极低
42     HANDLE hThread = CreateThread(NULL, 0, Fun, &xstr, 0, NULL);
43     WaitForSingleObject(hThread, INFINITE); // 等待，直到线程被激发
44     CloseHandle(hThread);
45 
46     cout << "Child thread is over." << endl;
47     return 0;
48 
49 }

 

参考文章：
https://www.cnblogs.com/XiHua/p/5028329.html