stream_gen.cc

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 * Copyright (c) 2018 ARM Limited
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 *
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 * this software without specific prior written permission.
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * Authors: Giacomo Travaglini
 */

#include "stream_gen.hh"

#include "base/random.hh"

StreamGen*
StreamGen::create(const BaseTrafficGenParams *p)
{
    switch (p->stream_gen) {
      case Enums::fixed:
        return new FixedStreamGen(p);
      case Enums::random:
        return new RandomStreamGen(p);
      case Enums::none:
      default:
        return nullptr;
    }
}

uint32_t
RandomStreamGen::randomPick(const std::vector<uint32_t> &svec)
{
    // Pick a random entry in the vector of IDs
    return svec[random_mt.random<size_t>(0, svec.size()-1)];
}