事件内核对象示例-命名事件

HostNamedEventObject 进程

#include "stdafx.h"
#include <afxwin.h>
#include <windows.h>

HANDLE hEvent = NULL;
char g_cArray[10];

UINT ThreadProcFirst(LPVOID pParam);

int main(int argc, char* argv[])
{
    /*创建一个可以自动复位的事件内核对象*/
    hEvent = CreateEvent(NULL, FALSE, FALSE, "Global\\NamedEvent");
    /*hEvent = CreateEvent(NULL, FALSE, FALSE, "Local\\NamedEvent");*/
    
    /*置位*/
    SetEvent(hEvent);
    
    AfxBeginThread(ThreadProcFirst, NULL);
    
    /*先启动Host, 再启动Target*/
    Sleep(5*1000);
    
    CString strResult = CString(g_cArray);
    AfxMessageBox(strResult);
    CloseHandle(hEvent);
    return 0;
}

UINT ThreadProcFirst(LPVOID pParam)
{
    /*无限等待hEvent的复位*/
    WaitForSingleObject(hEvent, INFINITE);
    printf("First");
    for (int i = 0; i < 10; ++i)
    {
        g_cArray[i] = 'a';
        Sleep(1);
    }
    
    SetEvent(hEvent);
    return 0;
}

TargetNamedEventObject 进程

#include "stdafx.h"
#include <afxwin.h>
#include <windows.h>

char g_cArray[10];

int main(int argc, char* argv[])
{
    HANDLE hEvent = OpenEvent(EVENT_ALL_ACCESS, FALSE, "Global\\NamedEvent");
    /*HANDLE hEvent = OpenEvent(EVENT_ALL_ACCESS, FALSE, "Local\\NamedEvent");*/
    if (NULL == hEvent) return -1;
    WaitForSingleObject(hEvent, INFINITE);
    printf("Second");
    for (int i = 0; i < 10; ++i)
    {
        g_cArray[10-i-1] = 'b';
        Sleep(1);
    }
    
    SetEvent(hEvent);

     CString strResult = CString(g_cArray);
     AfxMessageBox(strResult);
    return 0;
}