67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
/*
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* \brief Fiasco.OC-specific signal-source client interface
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* \author Norman Feske
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* \author Stefan Kalkowski
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* \date 2010-02-03
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*
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* On Fiasco.OC, the signal source server does not provide a blocking
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* 'wait_for_signal' function because this kernel does not support out-of-order
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* IPC replies. Instead, we use an IRQ kernel-object to let the client block
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* until a signal is present at the server.
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*
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* We request the IRQ object capability and attach to the IRQ on construction
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* of the 'Signal_source_client' object.
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*/
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/*
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* Copyright (C) 2010-2017 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__SIGNAL_SOURCE__CLIENT_H_
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#define _INCLUDE__SIGNAL_SOURCE__CLIENT_H_
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#include <base/rpc_client.h>
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#include <base/thread.h>
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#include <signal_source/foc_signal_source.h>
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namespace Genode { class Signal_source_client; }
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class Genode::Signal_source_client : public Rpc_client<Foc_signal_source>
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{
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private:
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/**
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* Capability with 'dst' referring to a Fiasco.OC IRQ object
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*/
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Native_capability _sem;
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public:
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/**
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* Constructor
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*/
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Signal_source_client(Capability<Signal_source> cap);
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/**
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* Destructor
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*/
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~Signal_source_client();
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/*****************************
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** Signal source interface **
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*****************************/
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/*
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* Build with frame pointer to make GDB backtraces work. See issue #1061.
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*/
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__attribute__((optimize("-fno-omit-frame-pointer")))
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Signal wait_for_signal() override;
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};
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#endif /* _INCLUDE__SIGNAL_SOURCE__CLIENT_H_ */
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