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construct/include/ircd/db/sst.h

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// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_DB_DATABASE_SST_H
struct ircd::db::database::sst
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{
struct info;
struct dump;
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static void tool(const vector_view<const string_view> &args);
};
/// Get info about an SST file.
///
struct ircd::db::database::sst::info
{
struct vector;
std::string name;
std::string path;
std::string column;
std::string filter;
std::string comparator;
std::string merge_operator;
std::string prefix_extractor;
std::string compression;
std::string checksum;
std::string checksum_func;
uint64_t id {0};
uint64_t format {0};
uint64_t cfid {0};
uint64_t size {0};
uint64_t head_size {0}; // index_size + filter_size
uint64_t data_size {0};
uint64_t file_size {0}; // head_size + data_size
uint64_t meta_size {0}; // size - data_size (???)
uint64_t index_root_size {0};
uint64_t index_data_size {0};
uint64_t index_size {0}; // index_root_size + index_data_size
uint64_t filter_size {0};
uint64_t keys_size {0};
uint64_t values_size {0};
uint64_t blocks_size {0}; // keys_size + values_size
uint64_t index_parts {0};
uint64_t data_blocks {0};
uint64_t entries {0};
uint64_t range_deletes {0};
uint64_t fixed_key_len {0};
uint64_t min_seq {0};
uint64_t max_seq {0};
std::string min_key;
std::string max_key;
uint64_t num_reads {0};
int level {-1};
bool compacting {false};
int32_t version {-1};
time_t created {0};
time_t oldest_key {0};
bool delta_encoding {false};
float compression_pct {0.0};
float index_compression_pct {0.0};
float blocks_compression_pct {0.0};
info(const database &, const string_view &filename);
info() = default;
info &operator=(rocksdb::SstFileMetaData &&);
info &operator=(rocksdb::LiveFileMetaData &&);
info &operator=(rocksdb::TableProperties &&);
};
struct ircd::db::database::sst::info::vector
:std::vector<info>
{
vector() = default;
explicit vector(const database &);
explicit vector(const db::column &);
};
struct ircd::db::database::sst::dump
{
using key_range = std::pair<string_view, string_view>;
sst::info info;
dump(db::column, const key_range & = {}, const string_view &path = {});
dump(dump &&) = delete;
dump(const dump &) = delete;
};