• Kenton Varda's avatar
    Change license to MIT. · 889204fe
    Kenton Varda authored
    For portions currently copyright by Kenton (most of it), transfer copyright to Sandstorm Development Group, Inc. (Kenton's company).
    
    The license change is practically meaningless, as MIT and BSD 2-clause are legally equivalent. However, the BSD 2-clause license is sometimes confused for its ugly siblings, BSD 3-clause and BSD 4-clause. The MIT license is more immediately recognizeable for what it is.
    
    Rémy Blank and Jason Choy (the two non-trivial contributors) are on record as approving this change:
    
    https://groups.google.com/d/msg/capnproto/xXDd2HUOCcc/gbe_COIuXKYJ
    889204fe
capnproto-catrank.c++ 4.35 KB
// Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
// Licensed under the MIT License:
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include "catrank.capnp.h"
#include "capnproto-common.h"

namespace capnp {
namespace benchmark {
namespace capnp {

struct ScoredResult {
  double score;
  SearchResult::Reader result;

  ScoredResult() = default;
  ScoredResult(double score, SearchResult::Reader result): score(score), result(result) {}

  inline bool operator<(const ScoredResult& other) const { return score > other.score; }
};

class CatRankTestCase {
public:
  typedef SearchResultList Request;
  typedef SearchResultList Response;
  typedef int Expectation;

  static int setupRequest(SearchResultList::Builder request) {
    int count = fastRand(1000);
    int goodCount = 0;

    auto list = request.initResults(count);

    for (int i = 0; i < count; i++) {
      SearchResult::Builder result = list[i];
      result.setScore(1000 - i);
      int urlSize = fastRand(100);

      static const char URL_PREFIX[] = "http://example.com/";
      size_t urlPrefixLength = strlen(URL_PREFIX);
      auto url = result.initUrl(urlSize + urlPrefixLength);

      strcpy(url.begin(), URL_PREFIX);
      char* pos = url.begin() + urlPrefixLength;
      for (int j = 0; j < urlSize; j++) {
        *pos++ = 'a' + fastRand(26);
      }

      bool isCat = fastRand(8) == 0;
      bool isDog = fastRand(8) == 0;
      goodCount += isCat && !isDog;

      static std::string snippet;
      snippet.clear();
      snippet.push_back(' ');

      int prefix = fastRand(20);
      for (int j = 0; j < prefix; j++) {
        snippet.append(WORDS[fastRand(WORDS_COUNT)]);
      }

      if (isCat) snippet.append("cat ");
      if (isDog) snippet.append("dog ");

      int suffix = fastRand(20);
      for (int j = 0; j < suffix; j++) {
        snippet.append(WORDS[fastRand(WORDS_COUNT)]);
      }

      result.setSnippet(Text::Reader(snippet.c_str(), snippet.size()));
    }

    return goodCount;
  }

  static void handleRequest(SearchResultList::Reader request, SearchResultList::Builder response) {
    std::vector<ScoredResult> scoredResults;

    for (auto result: request.getResults()) {
      double score = result.getScore();
      if (strstr(result.getSnippet().cStr(), " cat ") != nullptr) {
        score *= 10000;
      }
      if (strstr(result.getSnippet().cStr(), " dog ") != nullptr) {
        score /= 10000;
      }
      scoredResults.emplace_back(score, result);
    }

    std::sort(scoredResults.begin(), scoredResults.end());

    auto list = response.initResults(scoredResults.size());
    auto iter = list.begin();
    for (auto result: scoredResults) {
      iter->setScore(result.score);
      iter->setUrl(result.result.getUrl());
      iter->setSnippet(result.result.getSnippet());
      ++iter;
    }
  }

  static bool checkResponse(SearchResultList::Reader response, int expectedGoodCount) {
    int goodCount = 0;
    for (auto result: response.getResults()) {
      if (result.getScore() > 1001) {
        ++goodCount;
      } else {
        break;
      }
    }

    return goodCount == expectedGoodCount;
  }
};

}  // namespace capnp
}  // namespace benchmark
}  // namespace capnp

int main(int argc, char* argv[]) {
  return capnp::benchmark::benchmarkMain<
      capnp::benchmark::capnp::BenchmarkTypes,
      capnp::benchmark::capnp::CatRankTestCase>(argc, argv);
}