b49e588c1c
This patch replaces the former 'Pd_session::bind_thread' function by a PD-capability argument of the 'Cpu_session::create_thread' function, and removes the ancient thread-start protocol via 'Rm_session::add_client' and 'Cpu_session::set_pager'. Threads are now bound to PDs at their creation time and implicitly paged according to the address space of the PD. Note the API change: This patch changes the signature of the 'Child' and 'Process' constructors. There is a new 'address_space' argument, which represents the region map representing the child's address space. It is supplied separately to the PD session capability (which principally can be invoked to obtain the PD's address space) to allow the population of the address space without relying on an 'Pd_session::address_space' RPC call. Furthermore, a new (optional) env_pd argument allows the explicit overriding of the PD capability handed out to the child as part of its environment. It can be used to intercept the interaction of the child with its PD session at core. This is used by Noux. Issue #1938
64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
/*
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* \brief Paging-server framework
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* \author Norman Feske
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* \author Christian Helmuth
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* \date 2006-04-28
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*
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* Linux dummies
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*/
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/*
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* Copyright (C) 2006-2013 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 _CORE__INCLUDE__PAGER_H_
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#define _CORE__INCLUDE__PAGER_H_
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/* Genode includes */
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#include <base/signal.h>
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#include <pager/capability.h>
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#include <cap_session/cap_session.h>
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#include <thread/capability.h>
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/* core-local includes */
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#include <rpc_cap_factory.h>
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namespace Genode {
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struct Pager_object
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{
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Thread_capability _thread_cap;
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Signal_context_capability _sigh;
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virtual ~Pager_object() { }
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void exception_handler(Signal_context_capability sigh) { _sigh = sigh; }
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/**
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* Remember thread cap so that rm_session can tell thread that
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* rm_client is gone.
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*/
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Thread_capability thread_cap() { return _thread_cap; } const
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void thread_cap(Thread_capability cap) { _thread_cap = cap; }
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};
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struct Pager_entrypoint
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{
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Pager_entrypoint(Rpc_cap_factory &) { }
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template <typename FUNC>
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auto apply(Pager_capability, FUNC f) -> decltype(f(nullptr)) {
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return f(nullptr); }
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Pager_capability manage(Pager_object *) { return Pager_capability(); }
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void dissolve(Pager_object *) { }
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};
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}
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#endif /* _CORE__INCLUDE__PAGER_H_ */
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