pygen.cc

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/*
 * Copyright (c) 2018 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
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 * this software without specific prior written permission.
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#include "cpu/testers/traffic_gen/pygen.hh"
 
#include "base/trace.hh"
#include "config/have_protobuf.hh"
#include "debug/TrafficGen.hh"
#include "params/PyTrafficGen.hh"
#include "sim/init.hh"
 
namespace py = pybind11;
 
namespace gem5
{
 
PyTrafficGen::PyTrafficGen(const PyTrafficGenParams &p)
    : BaseTrafficGen(p)
{
}
 
void
PyTrafficGen::start(pybind11::object meta_generator)
{
    metaGenerator = meta_generator.begin();
    BaseTrafficGen::start();
}
 
std::shared_ptr<BaseGen>
PyTrafficGen::nextGenerator()
{
    if (!metaGenerator)
        return std::shared_ptr<BaseGen>();
 
    if (metaGenerator == py::iterator::sentinel()) {
        DPRINTF(TrafficGen, "No more generators available.\n");
        return std::shared_ptr<BaseGen>();
    }
 
    try {
        DPRINTF(TrafficGen, "Casting to C++ base class.\n");
        std::shared_ptr<BaseGen> gen =
            metaGenerator->cast<std::shared_ptr<BaseGen>>();
        metaGenerator++;
        return gen;
    } catch (py::cast_error&) {
        fatal("Meta generator didn't return a valid trace generator\n");
    }
}
 
void
pybind_init_tracers(py::module_ &m_native)
{
    using namespace pybind11::literals;
 
    py::module_ m = m_native.def_submodule("trace");
 
    py::class_<BaseGen, std::shared_ptr<BaseGen>> c_base(m, "BaseGen");
}
 
static EmbeddedPyBind _py_tracers("trace", pybind_init_tracers);
 
} // namespace gem5