125 lines
2.7 KiB
C++
125 lines
2.7 KiB
C++
/*
|
|
* \brief Server side audio-session interface
|
|
* \author Sebastian Sumpf
|
|
* \date 2012-12-10
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 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_SESSION__RPC_OBJECT_H_
|
|
#define _INCLUDE__AUDIO_SESSION__RPC_OBJECT_H_
|
|
|
|
#include <base/env.h>
|
|
#include <base/rpc_server.h>
|
|
#include <audio_session/audio_session.h>
|
|
|
|
|
|
namespace Audio_out {
|
|
class Session_rpc_object;
|
|
}
|
|
|
|
|
|
class Audio_out::Session_rpc_object : public Genode::Rpc_object<Audio_out::Session,
|
|
Session_rpc_object>
|
|
{
|
|
protected:
|
|
|
|
bool _stopped; /* state */
|
|
Genode::Ram_dataspace_capability _ds; /* contains Audio_out_stream */
|
|
Genode::Signal_transmitter _progress;
|
|
Genode::Signal_transmitter _alloc;
|
|
|
|
Genode::Signal_context_capability _data_cap;
|
|
|
|
bool _progress_sigh; /* progress signal on/off */
|
|
bool _alloc_sigh; /* alloc signal on/off */
|
|
|
|
public:
|
|
|
|
Session_rpc_object(Genode::Signal_context_capability data_cap)
|
|
:
|
|
_stopped(true), _data_cap(data_cap),
|
|
_progress_sigh(false), _alloc_sigh(false)
|
|
{
|
|
_ds = Genode::env()->ram_session()->alloc(sizeof(Stream));
|
|
_stream = static_cast<Stream *>(Genode::env()->rm_session()->attach(_ds));
|
|
}
|
|
|
|
virtual ~Session_rpc_object()
|
|
{
|
|
if (_ds.valid()) {
|
|
Genode::env()->rm_session()->detach(_stream);
|
|
Genode::env()->ram_session()->free(_ds);
|
|
}
|
|
}
|
|
|
|
/**************
|
|
** Signals **
|
|
**************/
|
|
|
|
void progress_sigh(Genode::Signal_context_capability sigh)
|
|
{
|
|
_progress.context(sigh);
|
|
_progress_sigh = true;
|
|
}
|
|
|
|
Genode::Signal_context_capability data_avail_sigh() {
|
|
return _data_cap; }
|
|
|
|
void alloc_sigh(Genode::Signal_context_capability sigh)
|
|
{
|
|
_alloc.context(sigh);
|
|
_alloc_sigh = true;
|
|
}
|
|
|
|
|
|
/***********************
|
|
** Session interface **
|
|
***********************/
|
|
|
|
void start() { _stopped = false; }
|
|
void stop() { _stopped = true; }
|
|
|
|
Genode::Dataspace_capability dataspace() { return _ds; }
|
|
|
|
|
|
/**********************************
|
|
** Session interface extensions **
|
|
**********************************/
|
|
|
|
/**
|
|
* Send 'progress' signal
|
|
*/
|
|
void progress_submit()
|
|
{
|
|
if (_progress_sigh)
|
|
_progress.submit();
|
|
}
|
|
|
|
/**
|
|
* Send 'alloc' signal
|
|
*/
|
|
void alloc_submit()
|
|
{
|
|
if (_alloc_sigh)
|
|
_alloc.submit();
|
|
}
|
|
|
|
/**
|
|
* Return true if client state is stopped
|
|
*/
|
|
bool stopped() const { return _stopped; }
|
|
|
|
/**
|
|
* Return true if client session is active
|
|
*/
|
|
bool active() const { return !_stopped; }
|
|
};
|
|
|
|
#endif /* _INCLUDE__AUDIO_SESSION__RPC_OBJECT_H_ */
|