probe.cc

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 * to a hardware implementation of the functionality of the software
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 * terms below provided that you ensure that this notice is replicated
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 *
 * Copyright (c) 2020 Inria
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 * met: redistributions of source code must retain the above copyright
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#include "sim/probe/probe.hh"
 
#include "debug/ProbeVerbose.hh"
#include "params/ProbeListenerObject.hh"
 
namespace gem5
{
 
ProbePoint::ProbePoint(ProbeManager *manager, const std::string& _name)
    : name(_name)
{
    if (manager) {
        manager->addPoint(*this);
    }
}
 
ProbeListenerObject::ProbeListenerObject(
        const ProbeListenerObjectParams &params)
    : SimObject(params),
      manager(params.manager->getProbeManager())
{
}
 
ProbeListenerObject::~ProbeListenerObject()
{
    for (auto l = listeners.begin(); l != listeners.end(); ++l) {
        delete (*l);
    }
    listeners.clear();
}
 
ProbeListener::ProbeListener(ProbeManager *_manager, const std::string &_name)
    : manager(_manager), name(_name)
{
    manager->addListener(name, *this);
}
 
ProbeListener::~ProbeListener()
{
    manager->removeListener(name, *this);
}
 
bool
ProbeManager::addListener(std::string point_name, ProbeListener &listener)
{
    DPRINTFR(ProbeVerbose, "Probes: Call to addListener to \"%s\" on %s.\n",
        point_name, object->name());
    bool added = false;
    for (auto p = points.begin(); p != points.end(); ++p) {
        if ((*p)->getName() == point_name) {
            (*p)->addListener(&listener);
            added = true;
        }
    }
    if (!added) {
        DPRINTFR(ProbeVerbose, "Probes: Call to addListener to \"%s\" on "
            "%s failed, no such point.\n", point_name, object->name());
    }
    return added;
}
 
bool
ProbeManager::removeListener(std::string point_name, ProbeListener &listener)
{
    DPRINTFR(ProbeVerbose, "Probes: Call to removeListener from \"%s\" on "
        "%s.\n", point_name, object->name());
    bool removed = false;
    for (auto p = points.begin(); p != points.end(); ++p) {
        if ((*p)->getName() == point_name) {
            (*p)->removeListener(&listener);
            removed = true;
        }
    }
    if (!removed) {
        DPRINTFR(ProbeVerbose, "Probes: Call to removeListener from \"%s\" "
            "on %s failed, no such point.\n", point_name, object->name());
    }
    return removed;
}
 
void
ProbeManager::addPoint(ProbePoint &point)
{
    DPRINTFR(ProbeVerbose, "Probes: Call to addPoint \"%s\" to %s.\n",
        point.getName(), object->name());
 
    for (auto p = points.begin(); p != points.end(); ++p) {
        if ((*p)->getName() == point.getName()) {
            DPRINTFR(ProbeVerbose, "Probes: Call to addPoint \"%s\" to %s "
                "failed, already added.\n", point.getName(), object->name());
            return;
        }
    }
    points.push_back(&point);
}
 
} // namespace gem5