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73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/*
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* \brief Connection to audio service
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* \author Sebastian Sumpf
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* \date 2012-12-20
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*/
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/*
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* Copyright (C) 2012-2013 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_OUT_SESSION__CONNECTION_H_
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#define _INCLUDE__AUDIO_OUT_SESSION__CONNECTION_H_
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#include <audio_out_session/client.h>
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#include <base/connection.h>
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#include <base/allocator.h>
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namespace Audio_out { struct Connection; }
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struct Audio_out::Connection : Genode::Connection<Session>, Audio_out::Session_client
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{
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/**
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* Issue session request
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*
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* \noapi
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*/
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Capability<Audio_out::Session> _session(Genode::Parent &parent, char const *channel)
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{
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return session(parent, "ram_quota=%ld, channel=\"%s\"",
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2*4096 + sizeof(Stream), channel);
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}
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/**
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* Constructor
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*
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* \param channel channel identifier (e.g., "front left")
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* \param alloc_signal install 'alloc_signal', the client may then use
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* 'wait_for_alloc' when the stream is full
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* \param progress_signal install progress signal, the client may then
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* call 'wait_for_progress', which is sent when the
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* server processed one or more packets
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*/
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Connection(Genode::Env &env,
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char const *channel,
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bool alloc_signal = true,
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bool progress_signal = false)
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:
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Genode::Connection<Session>(env, _session(env.parent(), channel)),
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Session_client(cap(), alloc_signal, progress_signal)
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{ }
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/**
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* Constructor
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*
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* \noapi
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* \deprecated Use the constructor with 'Env &' as first
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* argument instead
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*/
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Connection(const char *channel,
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bool alloc_signal = true,
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bool progress_signal = false)
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:
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Genode::Connection<Session>(_session(*Genode::env()->parent(), channel)),
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Session_client(cap(), alloc_signal, progress_signal)
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{ }
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};
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#endif /* _INCLUDE__AUDIO_OUT_SESSION__CONNECTION_H_ */
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