From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/rocksdb/utilities/cache_dump_load.cc | 69 ++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 src/rocksdb/utilities/cache_dump_load.cc

(limited to 'src/rocksdb/utilities/cache_dump_load.cc')

diff --git a/src/rocksdb/utilities/cache_dump_load.cc b/src/rocksdb/utilities/cache_dump_load.cc
new file mode 100644
index 000000000..9a7c76798
--- /dev/null
+++ b/src/rocksdb/utilities/cache_dump_load.cc
@@ -0,0 +1,69 @@
+//  Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+
+#ifndef ROCKSDB_LITE
+
+#include "rocksdb/utilities/cache_dump_load.h"
+
+#include "file/writable_file_writer.h"
+#include "port/lang.h"
+#include "rocksdb/env.h"
+#include "rocksdb/file_system.h"
+#include "table/format.h"
+#include "util/crc32c.h"
+#include "utilities/cache_dump_load_impl.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+IOStatus NewToFileCacheDumpWriter(const std::shared_ptr<FileSystem>& fs,
+                                  const FileOptions& file_opts,
+                                  const std::string& file_name,
+                                  std::unique_ptr<CacheDumpWriter>* writer) {
+  std::unique_ptr<WritableFileWriter> file_writer;
+  IOStatus io_s = WritableFileWriter::Create(fs, file_name, file_opts,
+                                             &file_writer, nullptr);
+  if (!io_s.ok()) {
+    return io_s;
+  }
+  writer->reset(new ToFileCacheDumpWriter(std::move(file_writer)));
+  return io_s;
+}
+
+IOStatus NewFromFileCacheDumpReader(const std::shared_ptr<FileSystem>& fs,
+                                    const FileOptions& file_opts,
+                                    const std::string& file_name,
+                                    std::unique_ptr<CacheDumpReader>* reader) {
+  std::unique_ptr<RandomAccessFileReader> file_reader;
+  IOStatus io_s = RandomAccessFileReader::Create(fs, file_name, file_opts,
+                                                 &file_reader, nullptr);
+  if (!io_s.ok()) {
+    return io_s;
+  }
+  reader->reset(new FromFileCacheDumpReader(std::move(file_reader)));
+  return io_s;
+}
+
+Status NewDefaultCacheDumper(const CacheDumpOptions& dump_options,
+                             const std::shared_ptr<Cache>& cache,
+                             std::unique_ptr<CacheDumpWriter>&& writer,
+                             std::unique_ptr<CacheDumper>* cache_dumper) {
+  cache_dumper->reset(
+      new CacheDumperImpl(dump_options, cache, std::move(writer)));
+  return Status::OK();
+}
+
+Status NewDefaultCacheDumpedLoader(
+    const CacheDumpOptions& dump_options,
+    const BlockBasedTableOptions& toptions,
+    const std::shared_ptr<SecondaryCache>& secondary_cache,
+    std::unique_ptr<CacheDumpReader>&& reader,
+    std::unique_ptr<CacheDumpedLoader>* cache_dump_loader) {
+  cache_dump_loader->reset(new CacheDumpedLoaderImpl(
+      dump_options, toptions, secondary_cache, std::move(reader)));
+  return Status::OK();
+}
+
+}  // namespace ROCKSDB_NAMESPACE
+#endif  // ROCKSDB_LITE
-- 
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