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RocksDB for Erlang

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rocksdb deps snappy third_party benchmark test memory_manager_test.cc
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deps/snappy/third_party/benchmark/test/memory_manager_test.cc 

#include <memory>



#include "../src/check.h"

#include "benchmark/benchmark.h"

#include "output_test.h"



class TestMemoryManager : public benchmark::MemoryManager {

  void Start() override {}

  void Stop(Result& result) override {

    result.num_allocs = 42;

    result.max_bytes_used = 42000;

  }

};



void BM_empty(benchmark::State& state) {

  for (auto _ : state) {

    auto iterations = state.iterations();

    benchmark::DoNotOptimize(iterations);

  }

}

BENCHMARK(BM_empty);



ADD_CASES(TC_ConsoleOut, {{"^BM_empty %console_report$"}});

ADD_CASES(TC_JSONOut, {{"\"name\": \"BM_empty\",$"},

                       {"\"family_index\": 0,$", MR_Next},

                       {"\"per_family_instance_index\": 0,$", MR_Next},

                       {"\"run_name\": \"BM_empty\",$", MR_Next},

                       {"\"run_type\": \"iteration\",$", MR_Next},

                       {"\"repetitions\": 1,$", MR_Next},

                       {"\"repetition_index\": 0,$", MR_Next},

                       {"\"threads\": 1,$", MR_Next},

                       {"\"iterations\": %int,$", MR_Next},

                       {"\"real_time\": %float,$", MR_Next},

                       {"\"cpu_time\": %float,$", MR_Next},

                       {"\"time_unit\": \"ns\",$", MR_Next},

                       {"\"allocs_per_iter\": %float,$", MR_Next},

                       {"\"max_bytes_used\": 42000$", MR_Next},

                       {"}", MR_Next}});

ADD_CASES(TC_CSVOut, {{"^\"BM_empty\",%csv_report$"}});



int main(int argc, char* argv[]) {

  std::unique_ptr<benchmark::MemoryManager> mm(new TestMemoryManager());



  benchmark::RegisterMemoryManager(mm.get());

  RunOutputTests(argc, argv);

  benchmark::RegisterMemoryManager(nullptr);

}