66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/*
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* \brief Utility for implementing a local service with a single session
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* \author Norman Feske
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* \date 2014-02-14
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*/
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/*
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* Copyright (C) 2014-2017 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__OS__SINGLE_SESSION_SERVICE_H_
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#define _INCLUDE__OS__SINGLE_SESSION_SERVICE_H_
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/* Genode includes */
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#include <base/service.h>
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namespace Genode { template <typename> class Single_session_service; }
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template <typename SESSION>
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class Genode::Single_session_service
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{
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public:
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typedef Capability<SESSION> Session_capability;
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private:
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/*
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* Wrap client object to be compatible with 'Rpc_object::cap' calls
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*
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* We hand out the capability via 'cap' method to be compatible with
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* the interface normally provided by server-side component objects.
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* The 'Single_session_factory' requests the capability via this
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* method.
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*/
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struct Client : SESSION::Client
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{
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Client(Session_capability cap) : SESSION::Client(cap) { }
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Client(Region_map &rm, Session_capability cap) : SESSION::Client(rm, cap) { }
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Session_capability cap() const { return this->rpc_cap(); }
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};
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typedef Local_service<Client> Service;
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typedef typename Service::Single_session_factory Factory;
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Client _client;
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Factory _factory { _client };
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Service _service { _factory };
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public:
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Single_session_service(Session_capability cap) : _client(cap) { }
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Single_session_service(Region_map &rm, Session_capability cap)
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: _client(rm, cap) { }
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Service &service() { return _service; }
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};
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#endif /* _INCLUDE__OS__SINGLE_SESSION_SERVICE_H_ */
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