2d6470936c
This patch adds a _curTick variable to an eventq. This variable is updated whenever an event is serviced in function serviceOne(), or all events upto a particular time are processed in function serviceEvents(). This change helps when there are eventqs that do not make use of curTick for scheduling events.
101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/*
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* Copyright (c) 2006 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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* Steve Reinhardt
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*/
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#ifndef __SIM_CORE_HH__
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#define __SIM_CORE_HH__
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/** @file This header provides some core simulator functionality such as time
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* information, output directory and exit events
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*/
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#include <string>
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#include "base/types.hh"
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#include "sim/eventq.hh"
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/// The universal simulation clock.
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inline Tick curTick() { return mainEventQueue.getCurTick(); }
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const Tick retryTime = 1000;
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/// These are variables that are set based on the simulator frequency
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///@{
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namespace SimClock {
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extern Tick Frequency; ///< The number of ticks that equal one second
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namespace Float {
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/** These variables equal the number of ticks in the unit of time they're
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* named after in a double.
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* @{
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*/
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extern double s; ///< second
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extern double ms; ///< millisecond
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extern double us; ///< microsecond
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extern double ns; ///< nanosecond
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extern double ps; ///< picosecond
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/** @} */
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/** These variables the inverse of above. They're all < 1.
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* @{
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*/
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extern double Hz; ///< Hz
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extern double kHz; ///< kHz
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extern double MHz; ///< MHz
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extern double GHZ; ///< GHz
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/** @}*/
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} // namespace Float
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/** These variables equal the number of ticks in the unit of time they're
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* named after in a 64 bit integer.
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*
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* @{
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*/
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namespace Int {
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extern Tick s; ///< second
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extern Tick ms; ///< millisecond
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extern Tick us; ///< microsecond
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extern Tick ns; ///< nanosecond
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extern Tick ps; ///< picosecond
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/** @} */
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} // namespace Int
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} // namespace SimClock
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/** @} */
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void setClockFrequency(Tick ticksPerSecond);
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void setOutputDir(const std::string &dir);
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class Callback;
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void registerExitCallback(Callback *callback);
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void doExitCleanup();
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#endif /* __SIM_CORE_HH__ */
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