CriticalSection 

 1 // CriticalSection.cpp : Defines the entry point for the console application.
 2 //
 3 
 4 #include "stdafx.h"
 5 #include <windows.h>
 6 
 7 
 8 // CriticalSection的InitializeCriticalSection(),DeleteCriticalSection()是不用本线程配对,EnterCriticalSection()与LeaveCriticalSection()也不用.
 9 LONG g_i0{};
10 LONG g_i1{};
11 CRITICAL_SECTION cs{};
12 DWORD WINAPI ThreadProc1(LPVOID lpThreadParameter);
13 DWORD WINAPI ThreadProc2(LPVOID lpThreadParameter);
14 
15 int main()
16 {
17     InitializeCriticalSection(&cs);
18 
19     HANDLE hThread[2]{};
20     hThread[0] = CreateThread(0, 0, ThreadProc1, 0, 0, 0);
21     hThread[1] = CreateThread(0, 0, ThreadProc2, 0, 0, 0);
22 
23     WaitForMultipleObjects(2, hThread, TRUE, INFINITE);
24     CloseHandle(hThread[0]);
25     CloseHandle(hThread[1]);
26     DeleteCriticalSection(&cs);
27 
28     printf("%d\n", g_i0);
29     printf("%d\n", g_i1);
30     system("pause");
31 
32     return 0;
33 }
34 
35 
36 DWORD WINAPI ThreadProc1(LPVOID lpThreadParameter)
37 {
38     for (int i = 0; i < 1000000; i++)
39     {
40         EnterCriticalSection(&cs);
41         g_i0++;
42         g_i1++;
43         LeaveCriticalSection(&cs);    
44     }
45 
46 
47 
48     return 0;
49 }
50 
51 DWORD WINAPI ThreadProc2(LPVOID lpThreadParameter)
52 {
53     for (int i = 0; i < 1000000; i++)
54     {
55         EnterCriticalSection(&cs);
56         g_i0++;
57         g_i1++;
58         LeaveCriticalSection(&cs);
59     }
60 
61     return 0;
62 }

 

posted @ 2017-07-20 16:35  Spobt  阅读(143)  评论(0)    收藏  举报