2391ef7214
Summary: Added the column family name to the properties block. This property is omitted only if the property is unavailable, such as when RepairDB() writes SST files. In a next diff, I will change RepairDB to use this new property for deciding to which column family an existing SST file belongs. If this property is missing, it will add it to the "unknown" column family (same as its existing behavior). Test Plan: New unit test: $ ./db_table_properties_test --gtest_filter=DBTablePropertiesTest.GetColumnFamilyNameProperty Reviewers: IslamAbdelRahman, yhchiang, sdong Reviewed By: sdong Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D55605
120 lines
4.4 KiB
C++
120 lines
4.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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#include <stdint.h>
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#include <string>
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#include <utility>
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#include <vector>
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#include "db/table_properties_collector.h"
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#include "rocksdb/options.h"
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#include "rocksdb/table_properties.h"
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#include "util/file_reader_writer.h"
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#include "util/mutable_cf_options.h"
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namespace rocksdb {
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class Slice;
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class Status;
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struct TableReaderOptions {
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// @param skip_filters Disables loading/accessing the filter block
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TableReaderOptions(const ImmutableCFOptions& _ioptions,
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const EnvOptions& _env_options,
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const InternalKeyComparator& _internal_comparator,
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bool _skip_filters = false, int _level = -1)
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: ioptions(_ioptions),
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env_options(_env_options),
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internal_comparator(_internal_comparator),
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skip_filters(_skip_filters),
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level(_level) {}
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const ImmutableCFOptions& ioptions;
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const EnvOptions& env_options;
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const InternalKeyComparator& internal_comparator;
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// This is only used for BlockBasedTable (reader)
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bool skip_filters;
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// what level this table/file is on, -1 for "not set, don't know"
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int level;
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};
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struct TableBuilderOptions {
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TableBuilderOptions(
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const ImmutableCFOptions& _ioptions,
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const InternalKeyComparator& _internal_comparator,
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const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
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_int_tbl_prop_collector_factories,
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CompressionType _compression_type,
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const CompressionOptions& _compression_opts, bool _skip_filters,
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const std::string& _column_family_name)
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: ioptions(_ioptions),
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internal_comparator(_internal_comparator),
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int_tbl_prop_collector_factories(_int_tbl_prop_collector_factories),
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compression_type(_compression_type),
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compression_opts(_compression_opts),
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skip_filters(_skip_filters),
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column_family_name(_column_family_name) {}
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const ImmutableCFOptions& ioptions;
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const InternalKeyComparator& internal_comparator;
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const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
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int_tbl_prop_collector_factories;
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CompressionType compression_type;
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const CompressionOptions& compression_opts;
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bool skip_filters; // only used by BlockBasedTableBuilder
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const std::string& column_family_name;
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};
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// TableBuilder provides the interface used to build a Table
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// (an immutable and sorted map from keys to values).
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//
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// Multiple threads can invoke const methods on a TableBuilder without
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// external synchronization, but if any of the threads may call a
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// non-const method, all threads accessing the same TableBuilder must use
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// external synchronization.
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class TableBuilder {
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public:
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// REQUIRES: Either Finish() or Abandon() has been called.
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virtual ~TableBuilder() {}
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// Add key,value to the table being constructed.
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// REQUIRES: key is after any previously added key according to comparator.
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// REQUIRES: Finish(), Abandon() have not been called
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virtual void Add(const Slice& key, const Slice& value) = 0;
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// Return non-ok iff some error has been detected.
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virtual Status status() const = 0;
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// Finish building the table.
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// REQUIRES: Finish(), Abandon() have not been called
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virtual Status Finish() = 0;
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// Indicate that the contents of this builder should be abandoned.
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// If the caller is not going to call Finish(), it must call Abandon()
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// before destroying this builder.
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// REQUIRES: Finish(), Abandon() have not been called
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virtual void Abandon() = 0;
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// Number of calls to Add() so far.
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virtual uint64_t NumEntries() const = 0;
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// Size of the file generated so far. If invoked after a successful
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// Finish() call, returns the size of the final generated file.
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virtual uint64_t FileSize() const = 0;
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// If the user defined table properties collector suggest the file to
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// be further compacted.
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virtual bool NeedCompact() const { return false; }
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// Returns table properties
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virtual TableProperties GetTableProperties() const = 0;
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};
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} // namespace rocksdb
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