mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-27 01:11:06 +00:00
76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
/*
|
|
* \brief Signal-source interface
|
|
* \author Norman Feske
|
|
* \date 2010-02-03
|
|
*
|
|
* This file is only included by 'signal_session/signal_session.h' and relies
|
|
* on the headers included there. No include guards are needed. It is a
|
|
* separate header file to make it easily replaceable by a platform-specific
|
|
* implementation.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2010-2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__SIGNAL_SESSION__SOURCE_H_
|
|
#define _INCLUDE__SIGNAL_SESSION__SOURCE_H_
|
|
|
|
#include <base/rpc.h>
|
|
|
|
namespace Genode {
|
|
|
|
/**
|
|
* Blocking part of the signal-session interface
|
|
*
|
|
* The blocking 'wait_for_signal()' function cannot be part of the
|
|
* signal-session interface because otherwise, context allocations or
|
|
* signal submissions would not be possible while blocking for signals.
|
|
* Therefore, the blocking part is implemented a separate interface,
|
|
* which can be used by an independent thread.
|
|
*/
|
|
struct Signal_source
|
|
{
|
|
class Signal
|
|
{
|
|
private:
|
|
|
|
long _imprint;
|
|
int _num;
|
|
|
|
public:
|
|
|
|
Signal(long imprint, int num) :
|
|
_imprint(imprint),
|
|
_num(num)
|
|
{ }
|
|
|
|
Signal() : _imprint(0), _num(0) { }
|
|
|
|
long imprint() { return _imprint; }
|
|
|
|
int num() { return _num; }
|
|
};
|
|
|
|
virtual ~Signal_source() { }
|
|
|
|
/**
|
|
* Wait for signal
|
|
*/
|
|
virtual Signal wait_for_signal() = 0;
|
|
|
|
|
|
/*********************
|
|
** RPC declaration **
|
|
*********************/
|
|
|
|
GENODE_RPC(Rpc_wait_for_signal, Signal, wait_for_signal);
|
|
GENODE_RPC_INTERFACE(Rpc_wait_for_signal);
|
|
};
|
|
}
|
|
|
|
#endif /* _INCLUDE__SIGNAL_SESSION__SOURCE_H_ */
|