Function get_potential_libhdfs_paths

cpp/src/arrow/io/hdfs_internal.cc:114–237

}

Result<std::vector<PlatformFilename>> get_potential_libhdfs_paths() {
  std::vector<PlatformFilename> potential_paths;
  std::string file_name;

// OS-specific file name
#ifdef _WIN32
  file_name = "hdfs.dll";
#elif __APPLE__
  file_name = "libhdfs.dylib";
#else
  file_name = "libhdfs.so";
#endif

  // Common paths
  ARROW_ASSIGN_OR_RAISE(auto search_paths, MakeFilenameVector({"", "."}));

  // Path from environment variable
  AppendEnvVarFilename("HADOOP_HOME", "lib/native", &search_paths);
  AppendEnvVarFilename("ARROW_LIBHDFS_DIR", &search_paths);

  // All paths with file name
  for (const auto& path : search_paths) {
    ARROW_ASSIGN_OR_RAISE(auto full_path, path.Join(file_name));
    potential_paths.push_back(std::move(full_path));
  }

  return potential_paths;
}

Result<std::vector<PlatformFilename>> get_potential_libjvm_paths() {
  std::vector<PlatformFilename> potential_paths;

  std::vector<PlatformFilename> search_prefixes;
  std::vector<PlatformFilename> search_suffixes;
  std::string file_name;

// From heuristics
#ifdef _WIN32
  ARROW_ASSIGN_OR_RAISE(search_prefixes, MakeFilenameVector({""}));
  ARROW_ASSIGN_OR_RAISE(search_suffixes,
                        MakeFilenameVector({"/jre/bin/server", "/bin/server"}));
  file_name = "jvm.dll";
#elif __APPLE__
  ARROW_ASSIGN_OR_RAISE(search_prefixes, MakeFilenameVector({""}));
  ARROW_ASSIGN_OR_RAISE(search_suffixes,
                        MakeFilenameVector({"/jre/lib/server", "/lib/server"}));
  file_name = "libjvm.dylib";

// SFrame uses /usr/libexec/java_home to find JAVA_HOME; for now we are
// expecting users to set an environment variable
#else
#  if defined(__aarch64__)
  const std::string prefix_arch{"arm64"};
  const std::string suffix_arch{"aarch64"};
#  else
  const std::string prefix_arch{"amd64"};
  const std::string suffix_arch{"amd64"};
#  endif