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			272 lines
		
	
	
	
		
			8.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			272 lines
		
	
	
	
		
			8.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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    This file is part of TON Blockchain Library.
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    TON Blockchain Library is free software: you can redistribute it and/or modify
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    it under the terms of the GNU Lesser General Public License as published by
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    the Free Software Foundation, either version 2 of the License, or
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    (at your option) any later version.
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    TON Blockchain Library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public License
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    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
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    Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "td/utils/tests.h"
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#include "td/db/KeyValueAsync.h"
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#include "td/db/KeyValue.h"
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#include "td/db/RocksDb.h"
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#include "td/utils/benchmark.h"
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#include "td/utils/buffer.h"
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#include "td/utils/optional.h"
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#include "td/utils/UInt.h"
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TEST(KeyValue, simple) {
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  td::Slice db_name = "testdb";
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  td::RocksDb::destroy(db_name).ignore();
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  std::unique_ptr<td::KeyValue> kv = std::make_unique<td::RocksDb>(td::RocksDb::open(db_name.str()).move_as_ok());
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  auto set_value = [&](td::Slice key, td::Slice value) {
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    kv->begin_transaction();
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    kv->set(key, value);
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    kv->commit_transaction();
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  };
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  auto ensure_value = [&](td::Slice key, td::Slice value) {
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    std::string kv_value;
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    auto status = kv->get(key, kv_value).move_as_ok();
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    ASSERT_EQ(td::int32(status), td::int32(td::KeyValue::GetStatus::Ok));
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    ASSERT_EQ(kv_value, value);
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  };
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  auto ensure_no_value = [&](td::Slice key) {
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    std::string kv_value;
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    auto status = kv->get(key, kv_value).move_as_ok();
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    ASSERT_EQ(td::int32(status), td::int32(td::KeyValue::GetStatus::NotFound));
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  };
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  ensure_no_value("A");
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  set_value("A", "HELLO");
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  ensure_value("A", "HELLO");
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  td::UInt128 x;
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  std::fill(as_slice(x).begin(), as_slice(x).end(), '1');
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  x.raw[5] = 0;
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  set_value(as_slice(x), as_slice(x));
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  ensure_value(as_slice(x), as_slice(x));
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  kv.reset();
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  td::RocksDbOptions options;
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  options.snapshot_statistics = std::make_shared<td::RocksDbSnapshotStatistics>();
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  kv = std::make_unique<td::RocksDb>(td::RocksDb::open(db_name.str(), options).move_as_ok());
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  ensure_value("A", "HELLO");
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  ensure_value(as_slice(x), as_slice(x));
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  CHECK(!options.snapshot_statistics->oldest_snapshot_timestamp());
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  auto snapshot = kv->snapshot();
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  CHECK(options.snapshot_statistics->oldest_snapshot_timestamp());
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  auto snapshot2 = kv->snapshot();
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  snapshot.reset();
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  CHECK(options.snapshot_statistics->oldest_snapshot_timestamp());
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  snapshot2.reset();
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  CHECK(!options.snapshot_statistics->oldest_snapshot_timestamp());
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};
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TEST(KeyValue, async_simple) {
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  td::Slice db_name = "testdb";
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  td::RocksDb::destroy(db_name).ignore();
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  td::actor::Scheduler scheduler({6});
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  auto watcher = td::create_shared_destructor([] { td::actor::SchedulerContext::get()->stop(); });
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  class Worker : public td::actor::Actor {
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   public:
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    Worker(std::shared_ptr<td::Destructor> watcher, std::string db_name)
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        : watcher_(std::move(watcher)), db_name_(std::move(db_name)) {
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    }
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    void start_up() override {
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      loop();
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    }
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    void tear_down() override {
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    }
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    void loop() override {
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      if (!kv_) {
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        kv_ = td::KeyValueAsync<td::UInt128, td::BufferSlice>(
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            std::make_unique<td::RocksDb>(td::RocksDb::open(db_name_).move_as_ok()));
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        set_start_at_ = td::Timestamp::now();
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      }
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      if (next_set_ && next_set_.is_in_past()) {
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        for (size_t i = 0; i < 10 && left_cnt_ > 0; i++, left_cnt_--) {
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          do_set();
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        }
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        if (left_cnt_ > 0) {
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          next_set_ = td::Timestamp::in(0.001);
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          alarm_timestamp() = next_set_;
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        } else {
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          next_set_ = td::Timestamp::never();
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          set_finish_at_ = td::Timestamp::now();
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        }
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      }
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    }
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   private:
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    std::shared_ptr<td::Destructor> watcher_;
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    td::optional<td::KeyValueAsync<td::UInt128, td::BufferSlice>> kv_;
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    std::string db_name_;
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    int left_cnt_ = 10000;
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    int pending_cnt_ = left_cnt_;
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    td::Timestamp next_set_ = td::Timestamp::now();
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    td::Timestamp set_start_at_;
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    td::Timestamp set_finish_at_;
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    void do_set() {
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      td::UInt128 key;
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      td::Random::secure_bytes(as_slice(key));
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      td::BufferSlice data(1024);
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      td::Random::secure_bytes(as_slice(data));
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      kv_.value().set(key, std::move(data), [actor_id = actor_id(this)](td::Result<td::Unit> res) {
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        res.ensure();
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        send_closure(actor_id, &Worker::on_stored);
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      });
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    }
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    void on_stored() {
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      pending_cnt_--;
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      if (pending_cnt_ == 0) {
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        auto now = td::Timestamp::now();
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        LOG(ERROR) << (now.at() - set_finish_at_.at());
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        LOG(ERROR) << (set_finish_at_.at() - set_start_at_.at());
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        stop();
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      }
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    }
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  };
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  scheduler.run_in_context([watcher = std::move(watcher), &db_name]() mutable {
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    td::actor::create_actor<Worker>("Worker", watcher, db_name.str()).release();
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    watcher.reset();
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  });
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  scheduler.run();
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};
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class KeyValueBenchmark : public td::Benchmark {
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 public:
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  std::string get_description() const override {
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    return "kv transation benchmark";
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  }
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  void start_up() override {
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    td::RocksDb::destroy("ttt");
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    db_ = td::RocksDb::open("ttt").move_as_ok();
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  }
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  void tear_down() override {
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    db_ = {};
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  }
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  void run(int n) override {
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    for (int i = 0; i < n; i++) {
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      db_.value().begin_transaction();
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      db_.value().set(PSLICE() << i, PSLICE() << i);
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      db_.value().commit_transaction();
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    }
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  }
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 private:
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  td::optional<td::RocksDb> db_;
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};
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TEST(KeyValue, Bench) {
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  td::bench(KeyValueBenchmark());
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}
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TEST(KeyValue, Stress) {
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  return;
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  td::Slice db_name = "testdb";
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  size_t N = 20;
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  auto db_name_i = [&](size_t i) { return PSTRING() << db_name << i; };
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  for (size_t i = 0; i < N; i++) {
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    td::RocksDb::destroy(db_name_i(i)).ignore();
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  }
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  td::actor::Scheduler scheduler({6});
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  auto watcher = td::create_shared_destructor([] { td::actor::SchedulerContext::get()->stop(); });
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  class Worker : public td::actor::Actor {
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   public:
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    Worker(std::shared_ptr<td::Destructor> watcher, std::string db_name)
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        : watcher_(std::move(watcher)), db_name_(std::move(db_name)) {
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    }
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    void start_up() override {
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      loop();
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    }
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    void tear_down() override {
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    }
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    void loop() override {
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      if (stat_at_.is_in_past()) {
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        stat_at_ = td::Timestamp::in(10);
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        LOG(ERROR) << db_->stats();
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      }
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      if (!kv_) {
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        db_ = std::make_shared<td::RocksDb>(td::RocksDb::open(db_name_).move_as_ok());
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        kv_ = td::KeyValueAsync<td::UInt128, td::BufferSlice>(db_);
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        set_start_at_ = td::Timestamp::now();
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      }
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      if (next_set_ && next_set_.is_in_past()) {
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        for (size_t i = 0; i < 10 && left_cnt_ > 0; i++, left_cnt_--) {
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          do_set();
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        }
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        if (left_cnt_ > 0) {
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          next_set_ = td::Timestamp::in(0.01);
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          alarm_timestamp() = next_set_;
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        } else {
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          next_set_ = td::Timestamp::never();
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          set_finish_at_ = td::Timestamp::now();
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        }
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      }
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    }
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   private:
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    std::shared_ptr<td::Destructor> watcher_;
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    std::shared_ptr<td::RocksDb> db_;
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    td::optional<td::KeyValueAsync<td::UInt128, td::BufferSlice>> kv_;
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    std::string db_name_;
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    int left_cnt_ = 1000000000;
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    int pending_cnt_ = left_cnt_;
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    td::Timestamp next_set_ = td::Timestamp::now();
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    td::Timestamp set_start_at_;
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    td::Timestamp set_finish_at_;
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    td::Timestamp stat_at_ = td::Timestamp::in(10);
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    void do_set() {
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      td::UInt128 key = td::UInt128::zero();
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      td::Random::secure_bytes(as_slice(key).substr(0, 1));
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      td::BufferSlice data(1024);
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      td::Random::secure_bytes(as_slice(data));
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      kv_.value().set(key, std::move(data), [actor_id = actor_id(this)](td::Result<td::Unit> res) {
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        res.ensure();
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        send_closure(actor_id, &Worker::on_stored);
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      });
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    }
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    void on_stored() {
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      pending_cnt_--;
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      if (pending_cnt_ == 0) {
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        auto now = td::Timestamp::now();
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        LOG(ERROR) << (now.at() - set_finish_at_.at());
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        LOG(ERROR) << (set_finish_at_.at() - set_start_at_.at());
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        stop();
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      }
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    }
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  };
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  scheduler.run_in_context([watcher = std::move(watcher), &db_name_i, &N]() mutable {
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    for (size_t i = 0; i < N; i++) {
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      td::actor::create_actor<Worker>("Worker", watcher, db_name_i(i)).release();
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    }
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    watcher.reset();
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  });
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  scheduler.run();
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}
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