genode/repos/os/include/usb_session/connection.h
Norman Feske 97a41394b4 Documentation changes on account of the book
This patch removes the outdates doc/architecture.txt since the
topics are covered by the book. We keep repos/os/doc/init.txt
because it contains a few details not present in the book (yet).
The patch streamlines the terminology a bit. Furthermore, it
slightly adjusts a few source-code comments to improve the book's
functional specification chapter.
2016-05-26 15:54:16 +02:00

71 lines
2.1 KiB
C++

/**
* \brief Client connection to USB server
* \author Sebastian Sumpf
* \date 2014-12-08
*/
/*
* Copyright (C) 2014 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__USB_SESSION__CONNECTION_H_
#define _INCLUDE__USB_SESSION__CONNECTION_H_
#include <usb_session/client.h>
#include <base/connection.h>
#include <base/allocator.h>
namespace Usb { struct Connection; }
struct Usb::Connection : Genode::Connection<Session>, Session_client
{
/**
* Issue session request
*
* \noapi
*/
Capability<Usb::Session> _session(Genode::Parent &parent,
char const *label,
Genode::size_t tx_buf_size)
{
return session(parent, "ram_quota=%zd, tx_buf_size=%zd, label=\"%s\"",
3 * 4096 + tx_buf_size, tx_buf_size, label);
}
/**
* Constructor
*/
Connection(Genode::Env &env,
Genode::Range_allocator *tx_block_alloc,
char const *label = "",
Genode::size_t tx_buf_size = 512 * 1024,
Genode::Signal_context_capability sigh_state_changed =
Genode::Signal_context_capability())
:
Genode::Connection<Session>(env, _session(env.parent(), label, tx_buf_size)),
Session_client(cap(), tx_block_alloc, sigh_state_changed)
{ }
/**
* Constructor
*
* \noapi
* \deprecated Use the constructor with 'Env &' as first
* argument instead
*/
Connection(Genode::Range_allocator *tx_block_alloc,
char const *label = "",
Genode::size_t tx_buf_size = 512 * 1024,
Genode::Signal_context_capability sigh_state_changed =
Genode::Signal_context_capability())
:
Genode::Connection<Session>(_session(*Genode::env()->parent(), label, tx_buf_size)),
Session_client(cap(), tx_block_alloc, sigh_state_changed)
{ }
};
#endif /* _INCLUDE__USB_SESSION__CONNECTION_H_ */