利用事件对象同步线程

#include <windows.h>
#include <stdio.h>

#define NUMTHREADS 3
#define BUFFER_SIZE 16
#define FOR_TIMES 5

HANDLE hEvent;
BYTE lpSharedBuffer[16] = {0};

void UseEvents(void);
DWORD WINAPI EventFunction(LPVOID lpParam);

int main(){
UseEvents();
}

void UseEvents(void){
HANDLE hThread;
hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
if(hEvent == NULL){
printf("CreateEvent failed.(%d)\n",GetLastError());
return;
}
hThread = CreateThread(NULL,0,EventFunction,NULL,0,NULL);
if(hThread == NULL){
printf("CreateThread failed.(%d)\n",GetLastError());
return;
}
Sleep(2000);
CopyMemory(lpSharedBuffer,"Event",strlen("Event"));
SetEvent(hEvent);
}

DWORD WINAPI EventFunction(LPVOID lpParam){
DWORD dwWaitResult;
dwWaitResult = WaitForSingleObject(hEvent,INFINITE);
if(dwWaitResult!=WAIT_OBJECT_0){
printf("Wait error:%d\n",GetLastError());
return 0;
}
printf("0%x",lpSharedBuffer);
system("pause");
if(!ResetEvent(hEvent)){
printf("SetEvent failed(%d)\n",GetLastError());
return 0;
}
return 1;
}