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+// 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: <dufourj@efrei.fr>
+// }}}
+#include "socket_reader.hh"
+
+#include "socket/server_socket.hh"
+#include "socket/socket_text.hh"
+#include "socket/address.hh"
+#include "data/data_buffer.hh"
+
+#include <stdexcept>
+
+/// 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);
+}