Method OpenAppendStream

cpp/src/arrow/filesystem/mockfs.cc:740–747

}

Result<std::shared_ptr<io::OutputStream>> MockFileSystem::OpenAppendStream(
    const std::string& path, const std::shared_ptr<const KeyValueMetadata>& metadata) {
  ARROW_RETURN_NOT_OK(internal::AssertNoTrailingSlash(path));
  RETURN_NOT_OK(ValidatePath(path));
  auto guard = impl_->lock_guard();

  return impl_->OpenOutputStream(path, /*append=*/true, metadata);
}

std::vector<MockDirInfo> MockFileSystem::AllDirs() {
  auto guard = impl_->lock_guard();