Method ToString

src/leveldb/persistent_cache/persistent_cache_impl.cc:28–44

using PersistentCacheMetricNames::kMetaDataSize;

std::string PersistentCacheConfig::ToString() const {
  std::string ret;
  ret.reserve(20000);
  const int kBufferSize = 200;
  char buffer[kBufferSize];

  snprintf(buffer, kBufferSize, "  path: %s\n", path.c_str());
  ret.append(buffer);
  snprintf(buffer, kBufferSize, "  use_direct_reads: %d\n", env_opt.use_direct_io_read);
  ret.append(buffer);
  snprintf(buffer, kBufferSize, "  use_direct_writes: %d\n", env_opt.use_direct_io_write);
  ret.append(buffer);
  snprintf(buffer, kBufferSize, "  cache_size: %lu\n", cache_size);
  ret.append(buffer);

  return ret;
}

bool PersistentCacheImpl::IsCacheFile(const std::string& file) {
  // check if the file has .rc suffix