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/*
* Copyright (c) 2013 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2002-2005 The Regents of The University of Michigan
* Copyright (c) 2013 Advanced Micro Devices, Inc.
* Copyright (c) 2013 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sim/sim_events.hh"
#include <string>
#include "base/callback.hh"
#include "sim/eventq.hh"
#include "sim/sim_exit.hh"
#include "sim/stats.hh"
namespace gem5
{
GlobalSimLoopExitEvent::GlobalSimLoopExitEvent(Tick when,
const std::string &_cause,
int c, Tick r)
: GlobalEvent(when, Sim_Exit_Pri, IsExitEvent),
cause(_cause), code(c), repeat(r)
{
}
GlobalSimLoopExitEvent::GlobalSimLoopExitEvent(const std::string &_cause,
int c, Tick r)
: GlobalEvent(curTick(), Minimum_Pri, IsExitEvent),
cause(_cause), code(c), repeat(r)
{
}
const char *
GlobalSimLoopExitEvent::description() const
{
return "global simulation loop exit";
}
//
// handle termination event
//
void
GlobalSimLoopExitEvent::process()
{
if (repeat) {
schedule(curTick() + repeat);
}
}
void
exitSimLoop(const std::string &message, int exit_code, Tick when, Tick repeat,
bool serialize)
{
warn_if(serialize && (when != curTick() || repeat),
"exitSimLoop called with a delay and auto serialization. This is "
"currently unsupported.");
new GlobalSimLoopExitEvent(when + simQuantum, message, exit_code, repeat);
}
void
exitSimLoopNow(const std::string &message, int exit_code, Tick repeat,
bool serialize)
{
new GlobalSimLoopExitEvent(message, exit_code, repeat);
}
LocalSimLoopExitEvent::LocalSimLoopExitEvent(const std::string &_cause, int c,
Tick r)
: Event(Sim_Exit_Pri, IsExitEvent),
cause(_cause), code(c), repeat(r)
{
}
//
// handle termination event
//
void
LocalSimLoopExitEvent::process()
{
exitSimLoop(cause, 0);
}
const char *
LocalSimLoopExitEvent::description() const
{
return "simulation loop exit";
}
void
LocalSimLoopExitEvent::serialize(CheckpointOut &cp) const
{
Event::serialize(cp);
SERIALIZE_SCALAR(cause);
SERIALIZE_SCALAR(code);
SERIALIZE_SCALAR(repeat);
}
void
LocalSimLoopExitEvent::unserialize(CheckpointIn &cp)
{
Event::unserialize(cp);
UNSERIALIZE_SCALAR(cause);
UNSERIALIZE_SCALAR(code);
UNSERIALIZE_SCALAR(repeat);
}
//
// constructor: automatically schedules at specified time
//
CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter)
: Event(Sim_Exit_Pri), cause(_cause), downCounter(counter)
{
// catch stupid mistakes
assert(downCounter > 0);
}
//
// handle termination event
//
void
CountedExitEvent::process()
{
if (--downCounter == 0) {
exitSimLoop(cause, 0);
}
}
const char *
CountedExitEvent::description() const
{
return "counted exit";
}
} // namespace gem5