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fe19103546
The 'pause' call on base-nova assumes that a thread can solely block in its associated semaphore. Main reason is that so core can unblock a thread in order that the recall exception gets delivered and the register state can be obtained. Unfortunately the signal session implementation creates a semaphore, which is unknown by the pager code. Instead create the semaphore via the pager of the thread, so that the pager can unblock the signal thread when a pause is issued. Issue #478
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
/*
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* \brief Signal-source server interface
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* \author Norman Feske
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* \date 2010-02-03
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*
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* This file is only included by 'signal_session/server.h' and relies on the
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* headers included there. No include guards are needed. It is a separate
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* header file to make it easily replaceable by a platform-specific
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* implementation.
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*/
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/*
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* Copyright (C) 2010-2013 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__SIGNAL_SESSION__SOURCE_SERVER_H_
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#define _INCLUDE__SIGNAL_SESSION__SOURCE_SERVER_H_
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#include <base/rpc_server.h>
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#include <signal_session/nova_source.h>
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namespace Genode {
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struct Signal_source_rpc_object : Rpc_object<Nova_signal_source, Signal_source_rpc_object>
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{
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protected:
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Native_capability _blocking_semaphore;
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public:
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void _register_semaphore(Native_capability const &cap)
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{
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if (_blocking_semaphore.valid())
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PWRN("overwritting blocking signal semaphore !!!");
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_blocking_semaphore = cap;
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}
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};
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}
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#endif /* _INCLUDE__SIGNAL_SESSION__SOURCE_SERVER_H_ */
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