gem5/src/cpu/cpuevent.cc

/*
 * Copyright (c) 2006 The Regents of The University of Michigan
 * 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.
 *
 * Authors: Ali Saidi
 */

#include "cpu/cpuevent.hh"

/** Static list of all CpuEvent objects so we can modify their thread
 * contexts as needed. */
CpuEvent::CpuEventList CpuEvent::cpuEventList;

CpuEvent::~CpuEvent()
{
    CpuEventList::iterator i;

    // delete the event from the global list
    for (i = cpuEventList.begin(); i != cpuEventList.end(); ) {
        if (*i == this)
            i = cpuEventList.erase(i);
        else
            i++;
    }
}

void
CpuEvent::replaceThreadContext(ThreadContext *oldTc, ThreadContext *newTc)
{
    CpuEventList::iterator i;

    // Update any events that have the old thread context with the new thread
    // context
    for (i = cpuEventList.begin(); i != cpuEventList.end(); i++) {
        if ((*i)->tc == oldTc)
            (*i)->tc = newTc;
    }
}