1 // 计时器.cpp : 定义控制台应用程序的入口点。
2 //
3
4 #include "stdafx.h"
5 #include <windows.h>
6 #include <iostream>
7 #include <time.h>
8 using namespace std;
9
10 BOOL __IsLoop = TRUE;
11
12
13 void GetSystemTime();
14 DWORD WINAPI ThreadProc(LPVOID parameterData);
15
16
17 int main()
18 {
19 HANDLE ThreadHandle = CreateThread(
20 NULL,
21 0,
22 (LPTHREAD_START_ROUTINE)ThreadProc,
23 NULL,
24 0,
25 NULL
26 );
27
28 printf("input any key to exit\r\n");
29 getchar();
30 __IsLoop = FALSE;
31 WaitForSingleObject(ThreadHandle, INFINITE);
32
33 if (ThreadHandle != NULL)
34 {
35 CloseHandle(ThreadHandle);
36 ThreadHandle = NULL;
37 }
38
39
40 return 0;
41 }
42
43 DWORD WINAPI ThreadProc(LPVOID parameterData)
44 {
45 LARGE_INTEGER DueTime;
46 DueTime.QuadPart = -10'000'000LL;//倒计时1秒
47
48 HANDLE TimeHandle = NULL;
49 TimeHandle =
50 CreateWaitableTimer(
51 NULL,
52 //TRUE, //BOOL bManualReset
53 FALSE,
54 NULL
55 );
56
57
58 //同步事件(synchronizationEvent)
59 //当事件对象为激发时，如遇到KeWaitForXX等内核函数，事件对象则自动变回未激发态
60 //通知事件(NotificationEvent)
61 //当事件对象为激发时，如遇到KeWaitForXX等内核函数，事件对象则不会自动变回未激发态
62
63 while (__IsLoop)
64 {
65 if (!SetWaitableTimer(TimeHandle, &DueTime, 0, NULL, NULL, 0))
66 {
67 printf("SetWaitableTimer FAIL: %d \r\n", GetLastError());
68 return 0;
69 }
70
71 BOOL IsOk = WaitForSingleObject(TimeHandle, INFINITE);
72 IsOk -= WAIT_OBJECT_0;
73
74 if (IsOk==0)
75 {
76 system("cls");
77 GetSystemTime();
78 printf("Timer was signaled\r\n");
79 }
80 else
81 {
82 break;
83 }
84 }
85 CancelWaitableTimer(TimeHandle);
86 CloseHandle(TimeHandle);
87 TimeHandle = NULL;
88 printf("ThreadProc Exit\r\n");
89
90 return 0;
91 }
92
93 void GetSystemTime()
94 {
95 time_t t = time(0);
96 char tmp[64];
97 strftime(tmp, sizeof(tmp), "%Y/%m/%d %X %A 本年第%j天 %z", localtime(&t));
98 puts(tmp);
99 }
