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/*
* Copyright (c) 2015 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.
*
* 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: Andreas Sandberg
*/
#ifndef __MEM_PROBES_BASE_HH__
#define __MEM_PROBES_BASE_HH__
#include <memory>
#include <vector>
#include "sim/probe/mem.hh"
#include "sim/sim_object.hh"
struct BaseMemProbeParams;
/**
* Base class for memory system probes accepting Packet instances.
*
* This is a helper base class for memory system probes that
* instrument Packet handling. Unlike the ProbeListenerObject base
* class, this class supports instrumentation of multiple ProbeManager
* instances. However, it's limited to one probe point name. This
* enables features like tracing or stack distance analysis of packets
* from multiple components using the same probe. For example, a stack
* distance probe could be hooked up to multiple memories in a
* multi-channel configuration.
*/
class BaseMemProbe : public SimObject
{
public:
BaseMemProbe(BaseMemProbeParams *params);
void regProbeListeners() override;
protected:
/**
* Callback to analyse intercepted Packets.
*/
virtual void handleRequest(const ProbePoints::PacketInfo &pkt_info) = 0;
private:
class PacketListener : public ProbeListenerArgBase<ProbePoints::PacketInfo>
{
public:
PacketListener(BaseMemProbe &_parent,
ProbeManager *pm, const std::string &name)
: ProbeListenerArgBase(pm, name),
parent(_parent) {}
void notify(const ProbePoints::PacketInfo &pkt_info) override {
parent.handleRequest(pkt_info);
}
protected:
BaseMemProbe &parent;
};
std::vector<std::unique_ptr<PacketListener>> listeners;
};
#endif // __MEM_PROBES_BASE_HH__
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