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This patch integrates three region maps into each PD session to reduce the session overhead and to simplify the PD creation procedure. Please refer to the issue cited below for an elaborative discussion. Note the API change: With this patch, the semantics of core's RM service have changed. Now, the service is merely a tool for creating and destroying managed dataspaces, which are rarely needed. Regular components no longer need a RM session. For this reason, the corresponding argument for the 'Process' and 'Child' constructors has been removed. The former interface of the 'Rm_session' is not named 'Region_map'. As a minor refinement, the 'Fault_type' enum values are now part of the 'Region_map::State' struct. Issue #1938
32 lines
748 B
C++
32 lines
748 B
C++
/*
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* \brief Client-side region manager session interface
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* \author Norman Feske
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* \date 2016-04-15
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*/
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/*
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* Copyright (C) 2016 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__RM_SESSION__CLIENT_H_
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#define _INCLUDE__RM_SESSION__CLIENT_H_
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#include <rm_session/capability.h>
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#include <base/rpc_client.h>
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namespace Genode { struct Rm_session_client; }
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struct Genode::Rm_session_client : Rpc_client<Rm_session>
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{
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explicit Rm_session_client(Rm_session_capability);
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Capability<Region_map> create(size_t) override;
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void destroy(Capability<Region_map>) override;
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};
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#endif /* _INCLUDE__RM_SESSION__CLIENT_H_ */
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