/*
 * \brief  Client-side block session interface
 * \author Stefan Kalkowski
 * \date   2010-07-06
 */

/*
 * Copyright (C) 2010-2012 Genode Labs GmbH
 *
 * This file is part of the Genode OS framework, which is distributed
 * under the terms of the GNU General Public License version 2.
 */

#ifndef _INCLUDE__BLOCK_SESSION__CLIENT_H_
#define _INCLUDE__BLOCK_SESSION__CLIENT_H_

#include <base/rpc_client.h>
#include <block_session/capability.h>
#include <packet_stream_tx/client.h>

namespace Block {

	class Session_client : public Genode::Rpc_client<Session>
	{
		private:

			Packet_stream_tx::Client<Tx> _tx;

		public:

			/**
			 * Constructor
			 *
			 * \param session          session capability
			 * \param tx_buffer_alloc  allocator used for managing the
			 *                         transmission buffer
			 */
			Session_client(Session_capability       session,
			               Genode::Range_allocator *tx_buffer_alloc)
			:
				Genode::Rpc_client<Session>(session),
				_tx(call<Rpc_tx_cap>(), tx_buffer_alloc)
			{ }


			/*****************************
			 ** Block session interface **
			 *****************************/

			void info(Genode::size_t *blk_count, Genode::size_t *blk_size,
			          Operations *ops)
			{
				call<Rpc_info>(blk_count, blk_size, ops);
			}

			Tx *tx_channel() { return &_tx; }
			Tx::Source *tx() { return _tx.source(); }

			/*
			 * Wrapper for alloc_packet, allocates 2KB aligned packets
			 */
			Packet_descriptor dma_alloc_packet(Genode::size_t size)
			{
				return tx()->alloc_packet(size, 11);
			}
	};
}

#endif /* _INCLUDE__BLOCK_SESSION__CLIENT_H_ */
