src/storage/lru_storage_main.cc

// Copyright 2010-2015, Google Inc.
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#include "storage/lru_storage.h"

#include <string>

#include "base/logging.h"
#include "base/port.h"
#include "base/util.h"

DEFINE_bool(create_db, false, "initialize database");
DEFINE_string(file, "test.db", "");
DEFINE_int32(size, 10, "size");

using mozc::storage::LRUStorage;

int main(int argc, char **argv) {
  InitGoogle(argv[0], &argc, &argv, false);

  if (FLAGS_create_db) {
    CHECK(LRUStorage::CreateStorageFile(
        FLAGS_file.c_str(), static_cast<uint32>(4), FLAGS_size, 0xff02));
  }

  LRUStorage s;
  CHECK(s.Open(FLAGS_file.c_str()));

  LOG(INFO) << "size=" << s.size();
  LOG(INFO) << "used_size=" << s.used_size();
  LOG(INFO) << "usage=" << 100.0 * s.used_size() / s.size() << "%";
  LOG(INFO) << "value_size=" << s.value_size();

  string line;
  vector<string> fields;
  while (getline(cin, line)) {
    fields.clear();
    mozc::Util::SplitStringUsing(line, "\t ", &fields);
    if (fields.size() >=2 && fields[0] == "g") {
      uint32 lat;
      const char *v = s.Lookup(fields[1], &lat);
      if (v != NULL) {
        cout << "found " << fields[1] << "\t"
             << lat << "\t" << *reinterpret_cast<const uint32 *>(v) << endl;
      } else {
        cout << "not found " << fields[1] << endl;
      }
    } else if (fields.size() >= 3 && fields[0] == "i") {
      uint32 value = atoi32(fields[2].c_str());
      s.Insert(fields[1], reinterpret_cast<const char*>(&value));
    } else {
      LOG(INFO) << "unknown command: " << line;
    }
  }

  return 0;
}