3049c1004c
The 'Timer::Session::msleep' function is one of the last occurrences of long-blocking RPC calls. Synchronous blocking RPC interfaces turned out to be constant source of trouble and code complexity. I.e., a timer client that also wants to respond to non-timer events was forced to be a multi-threaded process. This patch replaces the blocking 'msleep' call by a mechanism for programming timeouts and receiving wakeup signals in an asynchronous fashion. Thereby signals originating from the timer can be handled along with signals from other signal sources by a single thread. The changed interface has been tested on Linux, L4/Fiasco, OKL4, NOVA, L4ka::Pistachio, Codezero, Fiasco.OC, and hw_pbxa9. Furthermore, this patch adds the timer test to autopilot. Fixes #1
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
/*
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* \brief Client-side timer session interface
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* \author Norman Feske
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* \author Markus Partheymueller
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* \date 2006-05-31
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*/
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/*
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* Copyright (C) 2006-2013 Genode Labs GmbH
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* Copyright (C) 2012 Intel Corporation
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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__TIMER_SESSION__CLIENT_H_
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#define _INCLUDE__TIMER_SESSION__CLIENT_H_
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#include <timer_session/capability.h>
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#include <base/rpc_client.h>
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namespace Timer {
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struct Session_client : Genode::Rpc_client<Session>
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{
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explicit Session_client(Session_capability session)
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: Genode::Rpc_client<Session>(session) { }
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void trigger_once(unsigned us) { call<Rpc_trigger_once>(us); }
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void trigger_periodic(unsigned us) { call<Rpc_trigger_periodic>(us); }
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void sigh(Signal_context_capability sigh) { call<Rpc_sigh>(sigh); }
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unsigned long elapsed_ms() const { return call<Rpc_elapsed_ms>(); }
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};
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}
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#endif /* _INCLUDE__TIMER_SESSION__CLIENT_H_ */
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