56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
/*
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* \brief Time source that uses the timeout syscalls of the HW kernel
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* \author Martin Stein
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* \date 2012-05-03
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*/
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/*
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* Copyright (C) 2012-2017 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 _TIME_SOURCE_H_
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#define _TIME_SOURCE_H_
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/* Genode includes */
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#include <os/duration.h>
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/* local includes */
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#include <signalled_time_source.h>
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namespace Timer {
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using Microseconds = Genode::Microseconds;
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using Duration = Genode::Duration;
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class Time_source;
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}
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class Timer::Time_source : public Genode::Signalled_time_source
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{
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private:
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Duration mutable _curr_time { Microseconds(0) };
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unsigned long mutable _last_timeout_age_us = 0;
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unsigned long const _max_timeout_us;
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public:
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Time_source(Genode::Env &env);
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/*************************
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** Genode::Time_source **
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*************************/
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Duration curr_time() override;
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void schedule_timeout(Microseconds duration, Timeout_handler &handler) override;
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Microseconds max_timeout() const override {
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return Microseconds(_max_timeout_us); };
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};
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#endif /* _TIME_SOURCE_H_ */
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