909ab8dcd0
Enable routing of thread events to signal contexts via Kernel::route_thread_event. Replace Kernel::set_pager by Kernel::route_thread_event. In base-hw a pager object is a signal context and a pager activation is a signal receiver. If a thread wants to start communicating its page faults via a pager object, the thread calls Kernel::route_thread_event with its thread ID, event ID "FAULT", and the signal context ID of the pager object. If a pager activation wants to start handling page faults of a pager object, the pager activation assigns the corresponding signal context to its signal receiver. If a pager activation wants to stop handling page faults of a pager object, the pager activation dissolves the corresponding signal context from its signal receiver. If a thread wants to start communicating its page faults via a pager object, the thread calls Kernel::route_thread_event with its thread ID, event ID "FAULT", and the invalid signal context ID. Remove Kernel::resume_faulter. Move all page fault related code from generic kernel sources to CPU specific cpu_support.h and cpu_support.cc. fix #935
64 lines
1.2 KiB
C++
64 lines
1.2 KiB
C++
/*
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* \brief Event that is provided by akernel thread-object for user handling
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* \author Martin Stein
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* \date 2013-11-13
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*/
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/*
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* Copyright (C) 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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namespace Kernel
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{
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class Thread;
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/**
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* Event that is provided by kernel thread-objects for user handling
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*/
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class Thread_event;
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}
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class Kernel::Thread_event : public Signal_ack_handler
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{
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private:
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Thread * const _thread;
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Signal_context * _signal_context;
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/************************
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** Signal_ack_handler **
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************************/
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void _signal_acknowledged();
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public:
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/**
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* Constructor
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*
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* \param t thread that blocks on the event
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*/
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Thread_event(Thread * const t);
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/**
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* Submit to listening handlers just like a signal context
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*/
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void submit();
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/**
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* Kernel name of assigned signal context or 0 if not assigned
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*/
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unsigned signal_context_id() const;
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/**
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* Override signal context of the event
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*
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* \param c new signal context or 0 to dissolve current signal context
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*/
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void signal_context(Signal_context * const c);
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};
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