VC：命名管道参考程序

 

命名管道参考程序

服务器端命名管道创建：
void CNamedPipeSrvView::OnPipeCreate()
{
 // TODO: Add your command handler code here
 hPipe=CreateNamedPipe("\\\\.\\pipe\\MyPipe",
  PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
  0,1,1024,1024,0,NULL);
 if(INVALID_HANDLE_VALUE==hPipe)
 {
  MessageBox("创建命名管道失败！");
  hPipe=NULL;
  return;
 }
 HANDLE hEvent;
 hEvent=CreateEvent(NULL,TRUE,FALSE,NULL);
 if(!hEvent)
 {
  MessageBox("创建事件对象失败！");
  CloseHandle(hPipe);
  hPipe=NULL;
  return;
 }
 OVERLAPPED ovlap;
 ZeroMemory(&ovlap,sizeof(OVERLAPPED));
 ovlap.hEvent=hEvent;
 if(!ConnectNamedPipe(hPipe,&ovlap))
 {
  if(ERROR_IO_PENDING!=GetLastError())
  {
   MessageBox("等待客户端连接失败！");
   CloseHandle(hPipe);
   CloseHandle(hEvent);
   hPipe=NULL;
   return;
  }
 }
 if(WAIT_FAILED==WaitForSingleObject(hEvent,INFINITE))
 {
  MessageBox("等待对象失败！");
  CloseHandle(hPipe);
  CloseHandle(hEvent);
  hPipe=NULL;
  return;
 }
 CloseHandle(hEvent);
}

void CNamedPipeSrvView::OnPipeRead()
{
 // TODO: Add your command handler code here
 char buf[100];
 DWORD dwRead;
 if(!ReadFile(hPipe,buf,100,&dwRead,NULL))
 {
  MessageBox("读取数据失败！");
  return;
 }
 MessageBox(buf);
}

void CNamedPipeSrvView::OnPipeWrite()
{
 // TODO: Add your command handler code here
 char buf[]="http://www.sunxin.org";
 DWORD dwWrite;
 if(!WriteFile(hPipe,buf,strlen(buf)+1,&dwWrite,NULL))
 {
  MessageBox("写入数据失败！");
  return;
 }
}

客户端命名程序创建：
void CNamedPipeCltView::OnPipeConnect()
{
 // TODO: Add your command handler code here
 if(!WaitNamedPipe("\\\\.\\pipe\\MyPipe",NMPWAIT_WAIT_FOREVER))
 {
  MessageBox("当前没有可利用的命名管道实例！");
  return;
 }
 hPipe=CreateFile("\\\\.\\pipe\\MyPipe",GENERIC_READ | GENERIC_WRITE,
  0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
 if(INVALID_HANDLE_VALUE==hPipe)
 {
  MessageBox("打开命名管道失败！");
  hPipe=NULL;
  return;
 }
}

void CNamedPipeCltView::OnPipeRead()
{
 // TODO: Add your command handler code here
 char buf[100];
 DWORD dwRead;
 if(!ReadFile(hPipe,buf,100,&dwRead,NULL))
 {
  MessageBox("读取数据失败！");
  return;
 }
 MessageBox(buf);
}

void CNamedPipeCltView::OnPipeWrite()
{
 // TODO: Add your command handler code here
 char buf[]="命名管道测试程序";
 DWORD dwWrite;
 if(!WriteFile(hPipe,buf,strlen(buf)+1,&dwWrite,NULL))
 {
  MessageBox("写入数据失败！");
  return;
 }
}