wgtmac commented on code in PR #519:
URL: https://github.com/apache/iceberg-cpp/pull/519#discussion_r2708138306
##########
src/iceberg/test/CMakeLists.txt:
##########
@@ -109,6 +109,7 @@ add_iceberg_test(util_test
SOURCES
bucket_util_test.cc
config_test.cc
+ data_file_set_test.cc
Review Comment:
Add it to the meson test.
##########
src/iceberg/update/snapshot_update.h:
##########
@@ -103,25 +107,75 @@ class ICEBERG_EXPORT SnapshotUpdate : public
PendingUpdate {
/// \brief Write data manifests for the given data files
///
- /// \param data_files The data files to write
+ /// \tparam Iterator Iterator type that dereferences to
std::shared_ptr<DataFile>
+ /// \param begin Iterator to the beginning of the data files range
+ /// \param end Iterator to the end of the data files range
/// \param spec The partition spec to use
/// \param data_sequence_number Optional data sequence number for the files
/// \return A vector of manifest files
- /// TODO(xxx): Change signature to accept iterator begin/end instead of
vector to avoid
- /// intermediate vector allocations (e.g., from DataFileSet)
+ // TODO(xxx): write manifests in parallel
+ template <typename Iterator>
Result<std::vector<ManifestFile>> WriteDataManifests(
- const std::vector<std::shared_ptr<DataFile>>& data_files,
Review Comment:
Originally I suggested to use iterator because we need an extra conversion
to call this function. Now I found that `DataFileSet` also uses std::vector
internally, do you think it is better to use `std::span<const
std::shared_ptr<DataFile>> ` as the input here and add a `std:span<const
std::shared_ptr<DataFile>> DataFileSet::as_span() const` or something similar?
In this approach, we can still hide the implementation in the source file.
##########
src/iceberg/util/data_file_set.h:
##########
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#pragma once
+
+/// \file iceberg/util/data_file_set.h
Review Comment:
Please install it in the meson.build
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