Windows10 VS2017 C++多線程傳參和等待線程結束

 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 //線程函數
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傳遞參數
28     MYDATA xstr;
29     xstr.str = "你好!";
30 
31     //使用GetExitCodeThread()輪詢檢查
32     //DWORD exitCode = 0;
33     //HANDLE hThread = CreateThread(NULL, 0, Fun, &xstr, 0, NULL);
34     //while (1) {
35     //    GetExitCodeThread(hThread, &exitCode); // 嚴重浪費 CPU 時間
36     //    if (STILL_ACTIVE != exitCode)
37     //        break;
38     //}
39     //CloseHandle(hThread);
40 
41     //WaitForSingleObject()，cpu使用率極低
42     HANDLE hThread = CreateThread(NULL, 0, Fun, &xstr, 0, NULL);
43     WaitForSingleObject(hThread, INFINITE); // 等待，直到線程被激發
44     CloseHandle(hThread);
45 
46     cout << "Child thread is over." << endl;
47     return 0;
48 
49 }

 

參考文章：
http://www.javashuo.com/article/p-nmgjlghf-gx.html