69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
/*
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* \brief Signal service on the HW-core
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* \author Martin stein
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* \date 2012-05-05
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*/
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/*
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* Copyright (C) 2012 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 _CORE__INCLUDE__SIGNAL_SESSION_COMPONENT_H_
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#define _CORE__INCLUDE__SIGNAL_SESSION_COMPONENT_H_
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/* Genode includes */
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#include <signal_session/signal_session.h>
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#include <base/rpc_server.h>
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#include <base/slab.h>
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#include <base/allocator_guard.h>
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namespace Genode
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{
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/**
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* Provides the signal service
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*/
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class Signal_session_component : public Rpc_object<Signal_session>
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{
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Allocator_guard _md_alloc; /* Metadata allocator */
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Slab _receivers_slab; /* SLAB to allocate receiver kernel-objects */
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Slab _contexts_slab; /* SLAB to allocate context kernel-objects */
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public:
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/**
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* Constructor
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*
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* \param md Metadata allocator
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* \param ram_quota Amount of RAM quota donated to this session
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*/
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Signal_session_component(Allocator * const md,
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size_t const ram_quota);
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/**
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* Destructor
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*/
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~Signal_session_component();
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/**
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* Raise the quota of this session by 'q'
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*/
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void upgrade_ram_quota(size_t const q) { _md_alloc.upgrade(q); }
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/******************************
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** Signal_session interface **
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******************************/
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Signal_receiver_capability alloc_receiver();
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Signal_context_capability
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alloc_context(Signal_receiver_capability const r,
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unsigned const imprint);
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};
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}
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#endif /* _CORE__INCLUDE__CAP_SESSION_COMPONENT_H_ */
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