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c2d3543e62
Add functionality to lookup an object and lock it. Additional the case is handled that a object may be already in-destruction and the lookup will deny returning the object. The object_pool generalize the lookup and lock functionality of the rpc_server and serve as base for following up patches to fix dangling pointer issues.
59 lines
1.4 KiB
C++
59 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) 2006-2012 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__BASE__PAGER_H_
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#define _INCLUDE__BASE__PAGER_H_
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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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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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/* required by lookup_and_lock, provided by Object_pool::Entry normally */
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void release() { }
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};
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class Pager_activation_base { };
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struct Pager_entrypoint
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{
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Pager_entrypoint(Cap_session *, Pager_activation_base *) { }
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Pager_object *lookup_and_lock(Pager_capability) { return 0; }
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};
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template <int FOO> class Pager_activation : public Pager_activation_base { };
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}
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#endif /* _INCLUDE__BASE__PAGER_H_ */
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