genode/repos/os/include/file_system_session/client.h

/*
 * \brief  Client-side file-system session interface
 * \author Norman Feske
 * \date   2012-04-05
 */

/*
 * Copyright (C) 2012-2018 Genode Labs GmbH
 *
 * This file is part of the Genode OS framework, which is distributed
 * under the terms of the GNU Affero General Public License version 3.
 */

#ifndef _INCLUDE__FILE_SYSTEM_SESSION__CLIENT_H_
#define _INCLUDE__FILE_SYSTEM_SESSION__CLIENT_H_

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

namespace File_system { class Session_client; }


class File_system::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::Region_map      &rm)
		:
			Rpc_client<Session>(session),
			_tx(call<Rpc_tx_cap>(), rm, tx_buffer_alloc)
		{ }


		/***********************************
		 ** File-system session interface **
		 ***********************************/

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

		void sigh(Genode::Signal_context_capability sigh)
		{
			_tx.sigh_ready_to_submit(sigh);
			_tx.sigh_ack_avail(sigh);
		}

		File_handle file(Dir_handle dir, Name const &name, Mode mode, bool create) override
		{
			return call<Rpc_file>(dir, name, mode, create);
		}

		Symlink_handle symlink(Dir_handle dir, Name const &name, bool create) override
		{
			return call<Rpc_symlink>(dir, name, create);
		}

		Dir_handle dir(Path const &path, bool create) override
		{
			return call<Rpc_dir>(path, create);
		}

		Node_handle node(Path const &path) override
		{
			return call<Rpc_node>(path);
		}

		Watch_handle watch(Path const &path) override
		{
			return call<Rpc_watch>(path);
		}

		void close(Node_handle node) override
		{
			call<Rpc_close>(node);
		}

		Status status(Node_handle node) override
		{
			return call<Rpc_status>(node);
		}

		void control(Node_handle node, Control control) override
		{
			call<Rpc_control>(node, control);
		}

		void unlink(Dir_handle dir, Name const &name) override
		{
			call<Rpc_unlink>(dir, name);
		}

		void truncate(File_handle file, file_size_t size) override
		{
			call<Rpc_truncate>(file, size);
		}

		void move(Dir_handle from_dir, Name const &from_name,
		          Dir_handle to_dir,   Name const &to_name) override
		{
			call<Rpc_move>(from_dir, from_name, to_dir, to_name);
		}

		unsigned num_entries(Dir_handle dir) override
		{
			return call<Rpc_num_entries>(dir);
		}
};

#endif /* _INCLUDE__FILE_SYSTEM_SESSION__CLIENT_H_ */