Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 155 insertions, 0 deletions

diff --git a/src/rocksdb/table/table_builder.h b/src/rocksdb/table/table_builder.h
new file mode 100644
index 00000000..20d9a55f
--- /dev/null
+++ b/src/rocksdb/table/table_builder.h
@@ -0,0 +1,155 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  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).
+//
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+#pragma once
+
+#include <stdint.h>
+#include <string>
+#include <utility>
+#include <vector>
+#include "db/dbformat.h"
+#include "db/table_properties_collector.h"
+#include "options/cf_options.h"
+#include "rocksdb/options.h"
+#include "rocksdb/table_properties.h"
+#include "util/file_reader_writer.h"
+
+namespace rocksdb {
+
+class Slice;
+class Status;
+
+struct TableReaderOptions {
+  // @param skip_filters Disables loading/accessing the filter block
+  TableReaderOptions(const ImmutableCFOptions& _ioptions,
+                     const SliceTransform* _prefix_extractor,
+                     const EnvOptions& _env_options,
+                     const InternalKeyComparator& _internal_comparator,
+                     bool _skip_filters = false, bool _immortal = false,
+                     int _level = -1)
+      : TableReaderOptions(_ioptions, _prefix_extractor, _env_options,
+                           _internal_comparator, _skip_filters, _immortal,
+                           _level, 0 /* _largest_seqno */) {}
+
+  // @param skip_filters Disables loading/accessing the filter block
+  TableReaderOptions(const ImmutableCFOptions& _ioptions,
+                     const SliceTransform* _prefix_extractor,
+                     const EnvOptions& _env_options,
+                     const InternalKeyComparator& _internal_comparator,
+                     bool _skip_filters, bool _immortal, int _level,
+                     SequenceNumber _largest_seqno)
+      : ioptions(_ioptions),
+        prefix_extractor(_prefix_extractor),
+        env_options(_env_options),
+        internal_comparator(_internal_comparator),
+        skip_filters(_skip_filters),
+        immortal(_immortal),
+        level(_level),
+        largest_seqno(_largest_seqno) {}
+
+  const ImmutableCFOptions& ioptions;
+  const SliceTransform* prefix_extractor;
+  const EnvOptions& env_options;
+  const InternalKeyComparator& internal_comparator;
+  // This is only used for BlockBasedTable (reader)
+  bool skip_filters;
+  // Whether the table will be valid as long as the DB is open
+  bool immortal;
+  // what level this table/file is on, -1 for "not set, don't know"
+  int level;
+  // largest seqno in the table
+  SequenceNumber largest_seqno;
+};
+
+struct TableBuilderOptions {
+  TableBuilderOptions(
+      const ImmutableCFOptions& _ioptions, const MutableCFOptions& _moptions,
+      const InternalKeyComparator& _internal_comparator,
+      const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
+          _int_tbl_prop_collector_factories,
+      CompressionType _compression_type, uint64_t _sample_for_compression,
+      const CompressionOptions& _compression_opts, bool _skip_filters,
+      const std::string& _column_family_name, int _level,
+      const uint64_t _creation_time = 0, const int64_t _oldest_key_time = 0,
+      const uint64_t _target_file_size = 0)
+      : ioptions(_ioptions),
+        moptions(_moptions),
+        internal_comparator(_internal_comparator),
+        int_tbl_prop_collector_factories(_int_tbl_prop_collector_factories),
+        compression_type(_compression_type),
+        sample_for_compression(_sample_for_compression),
+        compression_opts(_compression_opts),
+        skip_filters(_skip_filters),
+        column_family_name(_column_family_name),
+        level(_level),
+        creation_time(_creation_time),
+        oldest_key_time(_oldest_key_time),
+        target_file_size(_target_file_size) {}
+  const ImmutableCFOptions& ioptions;
+  const MutableCFOptions& moptions;
+  const InternalKeyComparator& internal_comparator;
+  const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
+      int_tbl_prop_collector_factories;
+  CompressionType compression_type;
+  uint64_t sample_for_compression;
+  const CompressionOptions& compression_opts;
+  bool skip_filters;  // only used by BlockBasedTableBuilder
+  const std::string& column_family_name;
+  int level; // what level this table/file is on, -1 for "not set, don't know"
+  const uint64_t creation_time;
+  const int64_t oldest_key_time;
+  const uint64_t target_file_size;
+};
+
+// TableBuilder provides the interface used to build a Table
+// (an immutable and sorted map from keys to values).
+//
+// Multiple threads can invoke const methods on a TableBuilder without
+// external synchronization, but if any of the threads may call a
+// non-const method, all threads accessing the same TableBuilder must use
+// external synchronization.
+class TableBuilder {
+ public:
+  // REQUIRES: Either Finish() or Abandon() has been called.
+  virtual ~TableBuilder() {}
+
+  // Add key,value to the table being constructed.
+  // REQUIRES: key is after any previously added key according to comparator.
+  // REQUIRES: Finish(), Abandon() have not been called
+  virtual void Add(const Slice& key, const Slice& value) = 0;
+
+  // Return non-ok iff some error has been detected.
+  virtual Status status() const = 0;
+
+  // Finish building the table.
+  // REQUIRES: Finish(), Abandon() have not been called
+  virtual Status Finish() = 0;
+
+  // Indicate that the contents of this builder should be abandoned.
+  // If the caller is not going to call Finish(), it must call Abandon()
+  // before destroying this builder.
+  // REQUIRES: Finish(), Abandon() have not been called
+  virtual void Abandon() = 0;
+
+  // Number of calls to Add() so far.
+  virtual uint64_t NumEntries() const = 0;
+
+  // Size of the file generated so far.  If invoked after a successful
+  // Finish() call, returns the size of the final generated file.
+  virtual uint64_t FileSize() const = 0;
+
+  // If the user defined table properties collector suggest the file to
+  // be further compacted.
+  virtual bool NeedCompact() const { return false; }
+
+  // Returns table properties
+  virtual TableProperties GetTableProperties() const = 0;
+};
+
+}  // namespace rocksdb