关于异步socket的小问题

Question

static SOCKET sock[NUM] ;
....
switch (msg)
    {
    case IDOK://当用户按下OK键
          for(i=0;i<NUM;i++)
          { sock[i] = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP) ;
            WSAAsyncSelect (sock[send_num], hwnd, WM_SOCKET_NOTIFY+i,//use different message ID for each socket
                                  FD_WRITE&brvbar;FD_CONNECT&brvbar;FD_READ);
            connect(sock[send_num], (SOCKADDR *) &sa, sizeof (sa)) ;
          }
break;  
...    }  
if(msg>=WM_SOCKET_NOTIFY&&msg<WM_SOCKET_NOTIFY+NUM)
{
int index=msg-WM_SOCKET_NOTIFY;
          wEvent = WSAGETSELECTEVENT (lParam) ;  // ie, LOWORD
          wError = WSAGETSELECTERROR (lParam) ;  // ie, HIWORD          switch (wEvent)
          {
              case FD_CONNECT:
                  send(sock[index]
                  //这里知道是index=send_num
}

Answer 1

遍历整个数组，用FD_ISSET()判断

Answer 2

还是好好看看 WSAAsyncSelect （）的用法吧，你的程序叫人看了没法回答！

Answer 3

to masterz:
   ok,that's fine.

Answer 4

....
static SOCKET sock[NUM] ;
....
switch (msg)
    {
    case IDOK://当用户按下OK键
          for(i=0;i<NUM;i++)
          { sock[i] = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP) ;
            WSAAsyncSelect (sock[send_num], hwnd, WM_SOCKET_NOTIFY,
                                  FD_WRITE&brvbar;FD_CONNECT&brvbar;FD_READ);
            connect(sock[send_num], (SOCKADDR *) &sa, sizeof (sa)) ;
          }  
    case WM_SOCKET_NDTIFY:
          wEvent = WSAGETSELECTEVENT (lParam) ;  // ie, LOWORD
          wError = WSAGETSELECTERROR (lParam) ;  // ie, HIWORD          switch (wEvent)
          {
              case FD_CONNECT:
                  send((SOCKET)wParam
                  //消息的字参数就是产生事件的socket
                      }