140 lines
5.6 KiB
C++
140 lines
5.6 KiB
C++
// 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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#include "leveldb/options.h"
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#include "leveldb/comparator.h"
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#include "leveldb/env.h"
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#include "leveldb/filter_policy.h"
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#include "leveldb/cache.h"
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namespace leveldb {
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Options::Options()
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: comparator(BytewiseComparator()),
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create_if_missing(false),
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error_if_exists(false),
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paranoid_checks(false),
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env(Env::Default()),
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info_log(NULL),
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write_buffer_size(4<<20),
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max_write_buffer_number(2),
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max_open_files(1000),
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block_cache(NULL),
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block_size(4096),
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block_restart_interval(16),
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compression(kSnappyCompression),
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compression_per_level(NULL),
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filter_policy(NULL),
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num_levels(7),
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level0_file_num_compaction_trigger(4),
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level0_slowdown_writes_trigger(8),
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level0_stop_writes_trigger(12),
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max_mem_compaction_level(2),
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target_file_size_base(2 * 1048576),
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target_file_size_multiplier(1),
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max_bytes_for_level_base(10 * 1048576),
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max_bytes_for_level_multiplier(10),
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expanded_compaction_factor(25),
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max_grandparent_overlap_factor(10),
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statistics(NULL),
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disableDataSync(false),
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use_fsync(false),
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db_stats_log_interval(1800),
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db_log_dir(""),
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disable_seek_compaction(false),
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delete_obsolete_files_period_micros(0),
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max_background_compactions(1),
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max_log_file_size(0),
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rate_limit(0.0),
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no_block_cache(false),
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table_cache_numshardbits(4),
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compaction_filter_args(NULL),
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CompactionFilter(NULL) {
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}
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void
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Options::Dump(
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Logger * log) const
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{
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Log(log," Options.comparator: %s", comparator->Name());
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Log(log," Options.create_if_missing: %d", create_if_missing);
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Log(log," Options.error_if_exists: %d", error_if_exists);
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Log(log," Options.paranoid_checks: %d", paranoid_checks);
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Log(log," Options.env: %p", env);
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Log(log," Options.info_log: %p", info_log);
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Log(log," Options.write_buffer_size: %zd", write_buffer_size);
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Log(log," Options.max_write_buffer_number: %d", max_write_buffer_number);
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Log(log," Options.max_open_files: %d", max_open_files);
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Log(log," Options.block_cache: %p", block_cache);
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if (block_cache) {
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Log(log," Options.block_cache_size: %zd",
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block_cache->GetCapacity());
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}
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Log(log," Options.block_size: %zd", block_size);
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Log(log," Options.block_restart_interval: %d", block_restart_interval);
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if (compression_per_level != NULL) {
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for (int i = 0; i < num_levels; i++){
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Log(log," Options.compression[%d]: %d",
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i, compression_per_level[i]);
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}
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} else {
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Log(log," Options.compression: %d", compression);
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}
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Log(log," Options.filter_policy: %s",
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filter_policy == NULL ? "NULL" : filter_policy->Name());
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Log(log," Options.num_levels: %d", num_levels);
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Log(log," Options.disableDataSync: %d", disableDataSync);
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Log(log," Options.use_fsync: %d", use_fsync);
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Log(log," Options.max_log_file_size: %ld", max_log_file_size);
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Log(log," Options.db_stats_log_interval: %d",
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db_stats_log_interval);
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Log(log," Options.compression_opts.window_bits: %d",
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compression_opts.window_bits);
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Log(log," Options.compression_opts.level: %d",
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compression_opts.level);
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Log(log," Options.compression_opts.strategy: %d",
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compression_opts.strategy);
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Log(log," Options.level0_file_num_compaction_trigger: %d",
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level0_file_num_compaction_trigger);
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Log(log," Options.level0_slowdown_writes_trigger: %d",
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level0_slowdown_writes_trigger);
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Log(log," Options.level0_stop_writes_trigger: %d",
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level0_stop_writes_trigger);
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Log(log," Options.max_mem_compaction_level: %d",
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max_mem_compaction_level);
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Log(log," Options.target_file_size_base: %d",
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target_file_size_base);
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Log(log," Options.target_file_size_multiplier: %d",
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target_file_size_multiplier);
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Log(log," Options.max_bytes_for_level_base: %ld",
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max_bytes_for_level_base);
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Log(log," Options.max_bytes_for_level_multiplier: %d",
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max_bytes_for_level_multiplier);
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Log(log," Options.expanded_compaction_factor: %d",
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expanded_compaction_factor);
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Log(log," Options.max_grandparent_overlap_factor: %d",
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max_grandparent_overlap_factor);
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Log(log," Options.db_log_dir: %s",
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db_log_dir.c_str());
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Log(log," Options.disable_seek_compaction: %d",
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disable_seek_compaction);
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Log(log," Options.no_block_cache: %d",
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no_block_cache);
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Log(log," Options.table_cache_numshardbits: %d",
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table_cache_numshardbits);
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Log(log," Options.delete_obsolete_files_period_micros: %ld",
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delete_obsolete_files_period_micros);
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Log(log," Options.max_background_compactions: %d",
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max_background_compactions);
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Log(log," Options.rate_limit: %.2f",
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rate_limit);
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Log(log," Options.compaction_filter_args: %p",
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compaction_filter_args);
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Log(log," Options.CompactionFilter: %p",
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CompactionFilter);
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} // Options::Dump
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} // namespace leveldb
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