--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/common/packet.cc	Tue Aug 29 17:42:13 2006 +0200
@@ -0,0 +1,127 @@
+/* -*-	Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
+/*
+ * Copyright (c) 2005,2006 INRIA
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * 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
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#include "packet.h"
+#include <cassert>
+
+namespace yans {
+
+Packet::Packet ()
+	: m_buffer () {}
+
+Packet::Packet (uint32_t size)
+	: m_buffer (size)
+{}
+Packet::Packet (Buffer buffer, Tags tags)
+	: m_buffer (buffer),
+	  m_tags (tags)
+{}
+
+
+Packet 
+Packet::create_fragment (uint32_t start, uint32_t length) const
+{
+	Buffer tmp = m_buffer.create_fragment (start, length);
+	return Packet (tmp, m_tags);
+}
+
+uint32_t 
+Packet::get_size (void) const
+{
+	return m_buffer.get_size ();
+}
+
+void 
+Packet::add (Chunk *chunk)
+{
+	chunk->add (&m_buffer);
+}
+
+void 
+Packet::peek (Chunk *chunk) const
+{
+	chunk->peek (&m_buffer);
+}
+
+void 
+Packet::remove (Chunk *chunk)
+{
+	chunk->remove (&m_buffer);
+}
+
+
+void 
+Packet::write (PacketReadWriteCallback callback) const
+{
+	uint8_t *data = m_buffer.peek_data ();
+	uint32_t to_write = get_size ();
+	callback (data, to_write);
+}
+
+
+void 
+Packet::add_at_end (Packet packet)
+{
+	Buffer src = packet.m_buffer;
+	m_buffer.add_at_end (src.get_size ());
+	Buffer::Iterator dest_start = m_buffer.end ();
+	dest_start.prev (src.get_size ());
+	dest_start.write (src.begin (), src.end ());
+	/**
+	 * XXX: we might need to merge the tag list of the
+	 * other packet into the current packet.
+	 */
+}
+void 
+Packet::add_at_end (Packet packet, uint32_t start, uint32_t size)
+{
+	assert (packet.get_size () <= start + size);
+	Buffer src = packet.m_buffer;
+	m_buffer.add_at_end (src.get_size ());
+	Buffer::Iterator dest_start = m_buffer.end ();
+	dest_start.prev (size);
+	Buffer::Iterator src_start = src.begin ();
+	src_start.next (start);
+	Buffer::Iterator src_end = src_start;
+	src_end.next (size);
+	dest_start.write (src_start, src_end);
+	/**
+	 * XXX: we might need to merge the tag list of the
+	 * other packet into the current packet.
+	 */
+}
+void 
+Packet::remove_at_end (uint32_t size)
+{
+	m_buffer.remove_at_end (size);
+}
+void 
+Packet::remove_at_start (uint32_t size)
+{
+	m_buffer.remove_at_start (size);
+}
+
+void 
+Packet::remove_all_tags (void)
+{
+	m_tags.remove_all ();
+}
+
+}; // namespace yans