// socket_reader.cc // robert - programme du robot 2005. {{{ // // Copyright (C) 2005 Dufour Jérémy // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // Contact : // Web: %WEB% // Email: // }}} #include "socket_reader.hh" #include "socket/server_socket.hh" #include "socket/socket_text.hh" #include "socket/address.hh" #include "data/data_buffer.hh" #include /// Constructeur, les paramètres doivent être précisés car non présents /// dans le binaire. SocketReader::SocketReader (DataInput &data, int width, int height, Image::PixelFormat pixelFormat, int port) : data_ (data), width_ (width), height_ (height), pixelFormat_ (pixelFormat) { ServerSocket ss (port); Address a; socketText_ = new SocketText (ss, a); socketText_->nonblock (); } /// Récupère les paramètres de l'image. void SocketReader::getParam (int &width, int &height, Image::PixelFormat &pixelFormat) { width = width_; height = height_; pixelFormat = pixelFormat_; } /// Lit une image, lance une exception en cas d'erreur. void SocketReader::read (uint8_t *buf, unsigned size) { DataBuffer db; while (!socketText_->recv ()); *socketText_ >> db; if (db.type () != DataBuffer::Image) throw std::runtime_error ("Echec de la transmission"); if (db.size () != size) throw std::runtime_error ("Erreur de taille de message demandé"); db.read (buf, size); }