genode/os/include/audio_out_session/connection.h
2012-01-03 15:35:05 +01:00

50 lines
1.4 KiB
C++

/*
* \brief Connection to audio-out service
* \author Norman Feske
* \author Sebastian Sumpf
* \author Christian Helmuth
* \date 2009-12-01
*/
/*
* Copyright (C) 2009-2012 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__AUDIO_OUT_SESSION__CONNECTION_H_
#define _INCLUDE__AUDIO_OUT_SESSION__CONNECTION_H_
#include <audio_out_session/client.h>
#include <base/connection.h>
#include <base/allocator.h>
namespace Audio_out {
struct Connection : Genode::Connection<Session>, Session_client
{
/**
* Constructor
*
* \param channel channel identifier (e.g., "front left")
* \param buffer_alloc allocator used for managing the
* transmission buffer
* \param buffer_size size of transmission buffer in bytes
* (defaults to all packets of the queue plus
* some space for metadata)
*/
Connection(const char *channel,
Genode::Range_allocator *buffer_alloc,
Genode::size_t buffer_size = QUEUE_SIZE * FRAME_SIZE * PERIOD + 0x400)
:
Genode::Connection<Session>(
session("ram_quota=%zd, channel=\"%s\", buffer_size=%zd",
3*4096 + buffer_size, channel, buffer_size)),
Session_client(cap(), buffer_alloc)
{ }
};
}
#endif /* _INCLUDE__AUDIO_OUT_SESSION__CONNECTION_H_ */