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56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*
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* \brief Connection to RM service
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* \author Norman Feske
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* \date 2008-08-22
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*/
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/*
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* Copyright (C) 2008-2023 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__RM_SESSION__CONNECTION_H_
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#define _INCLUDE__RM_SESSION__CONNECTION_H_
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#include <rm_session/client.h>
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#include <base/connection.h>
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#include <util/retry.h>
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namespace Genode { struct Rm_connection; }
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struct Genode::Rm_connection : Connection<Rm_session>
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{
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Rm_session_client _client { cap() };
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Rm_connection(Env &env)
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:
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Connection<Rm_session>(env, {}, Ram_quota { 64*1024 }, Args())
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{ }
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/**
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* Wrapper of 'create' that handles session-quota upgrades on demand
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*/
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Capability<Region_map> create(size_t size)
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{
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Capability<Region_map> result { };
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using Error = Rm_session::Create_error;
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while (!result.valid())
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_client.create(size).with_result(
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[&] (Capability<Region_map> cap) { result = cap; },
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[&] (Error e) {
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switch (e) {
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case Error::OUT_OF_RAM: upgrade_ram(8*1024); break;
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case Error::OUT_OF_CAPS: upgrade_caps(2); break;
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}
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});
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return result;
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}
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void destroy(Capability<Region_map> cap) { _client.destroy(cap); }
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};
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#endif /* _INCLUDE__RM_SESSION__CONNECTION_H_ */
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