C++ ACE_TLI_Stream::set_rwflag方法代码示例

int
ACE_TLI_Acceptor::accept (ACE_TLI_Stream &new_tli_sap,
                          ACE_Addr *remote_addr,
                          ACE_Time_Value *timeout,
                          bool restart,
                          bool reset_new_handle,
                          int rwf,
                          netbuf *udata,
                          netbuf *opt)
{
  ACE_TRACE ("ACE_TLI_Acceptor::accept");
  ACE_UNUSED_ARG (reset_new_handle);

  ACE_TLI_Request *req = 0;
  int res = 0;
  if (timeout != 0
      && ACE::handle_timed_accept (this->get_handle (),
                                   timeout,
                                   restart) == -1)
    return -1;
  else if (this->queue_->is_empty ())
    {
      req = this->queue_->alloc ();

      do
        res = ACE_OS::t_listen (this->get_handle (),
                                    req->callp_);
      while (res == -1
             && restart
             && errno == EINTR);

      if (res != -1)
      {
        req->handle_ = open_new_endpoint (this->get_handle (),
                                          this->device_,
                                          req->callp_,
                                          rwf
#if defined (ACE_WIN32)
                                          , remote_addr
#endif /* ACE_WIN32 */
                                          );
        if (req->handle_ == ACE_INVALID_HANDLE)
          res = -1;
        else
          res = 0;
      }
    }
  else
    res = this->queue_->dequeue (req);

  if (udata != 0)
    ACE_OS::memcpy ((void *) &req->callp_->udata,
                    (void *) udata,
                    sizeof *udata);
  if (opt != 0)
    ACE_OS::memcpy ((void *) &req->callp_->opt,
                    (void *) opt,
                    sizeof *opt);

  while (res != -1)
    {
      res = ACE_OS::t_accept (this->get_handle (),
                              req->handle_,
                              req->callp_);
      if (res != -1)
        break; // Got one!
      else if (t_errno == TLOOK)
        res = this->handle_async_event (restart, rwf);
      else if (restart && t_errno == TSYSERR && errno == EINTR)
        res = 0;
    }

  if (res == -1)
    {
      if (errno != EWOULDBLOCK)
        {
          new_tli_sap.set_handle (ACE_INVALID_HANDLE);
          if (req->handle_ != ACE_INVALID_HANDLE)
            ACE_OS::t_close (req->handle_);
        }
    }
  else
    {
      new_tli_sap.set_handle (req->handle_);

      if (remote_addr != 0)
        remote_addr->set_addr ((void *) req->callp_->addr.buf,
                               req->callp_->addr.len);
    }

  req->handle_ = ACE_INVALID_HANDLE;
  this->queue_->free (req);
  new_tli_sap.set_rwflag (rwf);
  return new_tli_sap.get_handle () == ACE_INVALID_HANDLE ? -1 : 0;
}

//.........这里部分代码省略.........
                             localaddr->addr.len);

              if (ACE_OS::t_bind (new_stream.get_handle (),
                                  localaddr,
                                  localaddr) == -1)
                result = -1;

              ACE_OS::t_free ((char *) localaddr,
                              T_BIND);
            }
        }

      if (result == -1)
        {
          new_stream.close ();
          return -1;
        }
    }
  // Let TLI select the local endpoint addr.
  else if (ACE_OS::t_bind (new_stream.get_handle (), 0, 0) == -1)
    return -1;

  struct t_call *callptr = 0;

  callptr = (struct t_call *)
    ACE_OS::t_alloc (new_stream.get_handle (), T_CALL, T_ADDR);

  if (callptr == 0)
    {
      new_stream.close ();
      return -1;
    }

  void *addr_buf = remote_sap.get_addr ();
  callptr->addr.len = remote_sap.get_size ();
  ACE_OS::memcpy (callptr->addr.buf,
                  addr_buf,
                  callptr->addr.len);
  //callptr->addr.buf = (char *) remote_sap.get_addr ();

  if (udata != 0)
    ACE_OS::memcpy ((void *) &callptr->udata, (void *) udata, sizeof *udata);
  if (opt != 0)
    ACE_OS::memcpy ((void *) &callptr->opt, (void *) opt, sizeof *opt);

  // Connect to remote endpoint.
#if defined (ACE_HAS_FORE_ATM_XTI)
  // FORE's XTI/ATM driver has problems with ioctl/fcntl calls so (at least
  // for now) always have blocking calls.
  timeout = 0;
#endif /* ACE_HAS_FORE_ATM_XTI */

  if (timeout != 0)   // Enable non-blocking, if required.
    {
      if (new_stream.enable (ACE_NONBLOCK) == -1)
        result = -1;

      // Do a non-blocking connect.
      if (ACE_OS::t_connect (new_stream.get_handle (), callptr, 0) == -1)
        {
          result = -1;

          // Check to see if we simply haven't connected yet on a
          // non-blocking handle or whether there's really an error.
          if (t_errno == TNODATA)
            {
              if (*timeout == ACE_Time_Value::zero)
                errno = EWOULDBLOCK;
              else
                result = this->complete (new_stream, 0, timeout);
            }
          else if (t_errno == TLOOK && new_stream.look () == T_DISCONNECT)
            new_stream.rcvdis ();
        }
    }
  // Do a blocking connect to the server.
  else if (ACE_OS::t_connect (new_stream.get_handle (), callptr, 0) == -1)
    result = -1;

  if (result != -1)
    {
      new_stream.set_rwflag (rwf);
#if defined (I_PUSH) && !defined (ACE_HAS_FORE_ATM_XTI)
      if (new_stream.get_rwflag ())
        result = ACE_OS::ioctl (new_stream.get_handle (),
                                I_PUSH,
                                const_cast<char *> ("tirdwr"));
#endif /* I_PUSH */
    }
  else if (!(errno == EWOULDBLOCK || errno == ETIME))
    {
      // If things have gone wrong, close down and return an error.
      new_stream.close ();
      new_stream.set_handle (ACE_INVALID_HANDLE);
    }

  if (ACE_OS::t_free ((char *) callptr, T_CALL) == -1)
    return -1;
  return result;
}