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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
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
/*
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* \brief Noux-session client interface
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* \author Norman Feske
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* \date 2011-02-15
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*/
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/*
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* Copyright (C) 2011-2013 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__NOUX_SESSION__CLIENT_H_
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#define _INCLUDE__NOUX_SESSION__CLIENT_H_
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#include <noux_session/noux_session.h>
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#include <noux_session/capability.h>
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#include <base/rpc_client.h>
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#include <base/printf.h>
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namespace Noux {
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struct Session_client : Rpc_client<Session>
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{
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explicit Session_client(Session_capability session)
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: Rpc_client<Session>(session) { }
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Dataspace_capability sysio_dataspace()
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{
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return call<Rpc_sysio_dataspace>();
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}
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bool syscall(Syscall sc)
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{
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static bool verbose = false;
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bool result = call<Rpc_syscall>(sc);
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if ((result == false) && verbose)
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PERR("syscall %s failed", syscall_name(sc));
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return result;
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}
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int next_open_fd(int start_fd)
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{
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return call<Rpc_next_open_fd>(start_fd);
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}
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Capability<Region_map> lookup_region_map(addr_t const addr)
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{
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return call<Rpc_lookup_region_map>(addr);
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}
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};
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}
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#endif /* _INCLUDE__NOUX_SESSION__CLIENT_H_ */
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