C++ (Cpp) gth_nop示例

示例#1

文件： Socket.c 项目： GemikGmbH/Corelatus-GTH-example-code

int wait_for_packet(void* ptr_api, int data_socket)
{
	GTH_api* api = (GTH_api*)ptr_api;

	fd_set fds;
	int result;
	int nfds = max_arg(api->fd, data_socket) + 1;

	FD_ZERO(&fds);

	for (;;)
	{
		struct timeval tv = { 1, 0 };
		FD_SET(api->fd, &fds);
		FD_SET(data_socket, &fds);

		result = select(nfds, &fds, 0, 0, &tv);

		if (result < 0)
		{
			return -1; //failed
		}

		if (result == 0)
		{
			return 0;
		}

		if (FD_ISSET(api->fd, &fds))
		{
			gth_nop(api);
		}

		if (FD_ISSET(data_socket, &fds))
		{
			return 1;
		}
	}
}

示例#2

文件： save_to_pcap.c 项目： p1-nico/Corelatus-GTH-example-code

// Block (or loop) until a packet arrives. Flush API events with <nop/>
// Returns 0 on timeout, 1 otherwise.
static int
wait_for_packet(GTH_api *api, int data_socket)
{
  fd_set fds;
  int result;
  int nfds = max_arg(api->fd, data_socket) + 1;

  FD_ZERO(&fds);

  for (;;)
    {
      struct timeval tv = {1, 0};
      FD_SET(api->fd, &fds);
      FD_SET(data_socket, &fds);

      result = select(nfds, &fds, 0, 0, &tv);

      if (result < 0)
	{
	  die("internal error---select() returned error");
	}

      if (result == 0)
	{
	  return 0;
	}

      if (FD_ISSET(api->fd, &fds))
	{
	  gth_nop(api);
	}

      if (FD_ISSET(data_socket, &fds))
	{
	  return 1;
	}
    }
}