117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
/*
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* \brief Server-side Audio_in session interface
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* \author Josef Soentgen
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* \date 2015-05-08
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*/
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/*
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* Copyright (C) 2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__AUDIO_IN_SESSION__RPC_OBJECT_H_
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#define _INCLUDE__AUDIO_IN_SESSION__RPC_OBJECT_H_
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/* Genode includes */
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#include <base/env.h>
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#include <base/rpc_server.h>
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#include <audio_in_session/audio_in_session.h>
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namespace Audio_in { class Session_rpc_object; }
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class Audio_in::Session_rpc_object : public Genode::Rpc_object<Audio_in::Session,
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Session_rpc_object>
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{
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protected:
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bool _stopped; /* state */
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Genode::Ram_dataspace_capability _ds; /* contains Audio_in stream */
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Genode::Signal_context_capability _data_cap;
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Genode::Signal_context_capability _progress_cap;
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Genode::Signal_context_capability _overrun_cap;
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public:
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Session_rpc_object(Genode::Signal_context_capability data_cap)
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:
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_stopped(true), _data_cap(data_cap)
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{
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using namespace Genode;
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_ds = env()->ram_session()->alloc(sizeof(Stream));
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_stream = static_cast<Stream *>(env()->rm_session()->attach(_ds));
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}
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virtual ~Session_rpc_object()
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{
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if (_ds.valid()) {
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Genode::env()->rm_session()->detach(_stream);
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Genode::env()->ram_session()->free(_ds);
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}
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}
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/**************
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** Signals **
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**************/
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void progress_sigh(Genode::Signal_context_capability sigh) {
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_progress_cap = sigh; }
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void overrun_sigh(Genode::Signal_context_capability sigh) {
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_overrun_cap = sigh; }
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Genode::Signal_context_capability data_avail_sigh() {
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return _data_cap; }
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/***********************
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** Session interface **
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***********************/
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void start() { _stopped = false; }
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void stop() { _stopped = true; }
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Genode::Dataspace_capability dataspace() { return _ds; }
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/**********************************
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** Session interface extensions **
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**********************************/
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/**
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* Send 'progress' signal
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*/
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void progress_submit()
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{
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if (_progress_cap.valid())
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Genode::Signal_transmitter(_progress_cap).submit();
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}
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/**
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* Send 'overrun' signal
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*/
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void overrun_submit()
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{
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if (_overrun_cap.valid())
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Genode::Signal_transmitter(_overrun_cap).submit();
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}
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/**
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* Return true if client state is stopped
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*/
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bool stopped() const { return _stopped; }
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/**
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* Return true if client session is active
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*/
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bool active() const { return !_stopped; }
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};
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#endif /* _INCLUDE__AUDIO_IN_SESSION__RPC_OBJECT_H_ */
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