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A client may register a signal handler to be notified whenever the RTC value was changed, i.e., a mis-configured clock was synchronized, by calling 'set_sigh()'. Issue #3450
90 lines
1.8 KiB
C++
90 lines
1.8 KiB
C++
/*
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* \brief Rtc session interface
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* \author Markus Partheymueller
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* \author Josef Soentgen
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* \date 2012-11-15
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*/
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/*
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* Copyright (C) 2012 Intel Corporation
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* Copyright (C) 2013-2019 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__RTC_SESSION__RTC_SESSION_H_
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#define _INCLUDE__RTC_SESSION__RTC_SESSION_H_
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#include <session/session.h>
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#include <base/rpc.h>
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#include <base/stdint.h>
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#include <base/signal.h>
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namespace Rtc {
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struct Timestamp;
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struct Session;
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}
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/*
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* RTC value
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*/
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struct Rtc::Timestamp
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{
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unsigned microsecond;
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unsigned second;
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unsigned minute;
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unsigned hour;
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unsigned day;
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unsigned month;
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unsigned year;
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void print(Genode::Output &out) const
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{
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Genode::print(out, year, "-", month, "-", day, " ",
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hour, ":", minute, ":", second);
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}
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};
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struct Rtc::Session : Genode::Session
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{
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/**
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* \noapi
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*/
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static const char *service_name() { return "Rtc"; }
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enum { CAP_QUOTA = 2 };
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/***********************
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** Session interface **
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***********************/
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/**
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* Register set signal handler
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*
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* \param sigh signal handler that is called when the RTC has
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* been set
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*/
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virtual void set_sigh(Genode::Signal_context_capability sigh) = 0;
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/**
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* Query current time
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*
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* \return RTC value as structed timestamp
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*/
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virtual Timestamp current_time() = 0;
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/*******************
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** RPC interface **
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*******************/
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GENODE_RPC(Rpc_set_sigh, void, set_sigh,
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Genode::Signal_context_capability);
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GENODE_RPC(Rpc_current_time, Timestamp, current_time);
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GENODE_RPC_INTERFACE(Rpc_set_sigh, Rpc_current_time);
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};
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#endif /* _INCLUDE__RTC_SESSION__RTC_SESSION_H_ */
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