rocksdb/db/c.cc
Zhongyi Xie 2f41ecfe75 Refactor trimming logic for immutable memtables (#5022)
Summary:
MyRocks currently sets `max_write_buffer_number_to_maintain` in order to maintain enough history for transaction conflict checking. The effectiveness of this approach depends on the size of memtables. When memtables are small, it may not keep enough history; when memtables are large, this may consume too much memory.
We are proposing a new way to configure memtable list history: by limiting the memory usage of immutable memtables. The new option is `max_write_buffer_size_to_maintain` and it will take precedence over the old `max_write_buffer_number_to_maintain` if they are both set to non-zero values. The new option accounts for the total memory usage of flushed immutable memtables and mutable memtable. When the total usage exceeds the limit, RocksDB may start dropping immutable memtables (which is also called trimming history), starting from the oldest one.
The semantics of the old option actually works both as an upper bound and lower bound. History trimming will start if number of immutable memtables exceeds the limit, but it will never go below (limit-1) due to history trimming.
In order the mimic the behavior with the new option, history trimming will stop if dropping the next immutable memtable causes the total memory usage go below the size limit. For example, assuming the size limit is set to 64MB, and there are 3 immutable memtables with sizes of 20, 30, 30. Although the total memory usage is 80MB > 64MB, dropping the oldest memtable will reduce the memory usage to 60MB < 64MB, so in this case no memtable will be dropped.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5022

Differential Revision: D14394062

Pulled By: miasantreble

fbshipit-source-id: 60457a509c6af89d0993f988c9b5c2aa9e45f5c5
2019-08-23 13:55:34 -07:00

4398 lines
140 KiB
C++

// 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.
#ifndef ROCKSDB_LITE
#include "rocksdb/c.h"
#include <stdlib.h>
#include "port/port.h"
#include "rocksdb/cache.h"
#include "rocksdb/compaction_filter.h"
#include "rocksdb/comparator.h"
#include "rocksdb/convenience.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/filter_policy.h"
#include "rocksdb/iterator.h"
#include "rocksdb/memtablerep.h"
#include "rocksdb/merge_operator.h"
#include "rocksdb/options.h"
#include "rocksdb/rate_limiter.h"
#include "rocksdb/slice_transform.h"
#include "rocksdb/statistics.h"
#include "rocksdb/status.h"
#include "rocksdb/table.h"
#include "rocksdb/universal_compaction.h"
#include "rocksdb/utilities/backupable_db.h"
#include "rocksdb/utilities/checkpoint.h"
#include "rocksdb/utilities/db_ttl.h"
#include "rocksdb/utilities/memory_util.h"
#include "rocksdb/utilities/optimistic_transaction_db.h"
#include "rocksdb/utilities/transaction.h"
#include "rocksdb/utilities/transaction_db.h"
#include "rocksdb/utilities/write_batch_with_index.h"
#include "rocksdb/write_batch.h"
#include "rocksdb/perf_context.h"
#include "utilities/merge_operators.h"
#include <vector>
#include <unordered_set>
#include <map>
using rocksdb::BytewiseComparator;
using rocksdb::Cache;
using rocksdb::ColumnFamilyDescriptor;
using rocksdb::ColumnFamilyHandle;
using rocksdb::ColumnFamilyOptions;
using rocksdb::CompactionFilter;
using rocksdb::CompactionFilterFactory;
using rocksdb::CompactionFilterContext;
using rocksdb::CompactionOptionsFIFO;
using rocksdb::Comparator;
using rocksdb::CompressionType;
using rocksdb::WALRecoveryMode;
using rocksdb::DB;
using rocksdb::DBOptions;
using rocksdb::DbPath;
using rocksdb::Env;
using rocksdb::EnvOptions;
using rocksdb::InfoLogLevel;
using rocksdb::FileLock;
using rocksdb::FilterPolicy;
using rocksdb::FlushOptions;
using rocksdb::IngestExternalFileOptions;
using rocksdb::Iterator;
using rocksdb::Logger;
using rocksdb::MergeOperator;
using rocksdb::MergeOperators;
using rocksdb::NewBloomFilterPolicy;
using rocksdb::NewLRUCache;
using rocksdb::Options;
using rocksdb::BlockBasedTableOptions;
using rocksdb::CuckooTableOptions;
using rocksdb::RandomAccessFile;
using rocksdb::Range;
using rocksdb::ReadOptions;
using rocksdb::SequentialFile;
using rocksdb::Slice;
using rocksdb::SliceParts;
using rocksdb::SliceTransform;
using rocksdb::Snapshot;
using rocksdb::SstFileWriter;
using rocksdb::Status;
using rocksdb::WritableFile;
using rocksdb::WriteBatch;
using rocksdb::WriteBatchWithIndex;
using rocksdb::WriteOptions;
using rocksdb::LiveFileMetaData;
using rocksdb::BackupEngine;
using rocksdb::BackupableDBOptions;
using rocksdb::BackupInfo;
using rocksdb::BackupID;
using rocksdb::RestoreOptions;
using rocksdb::CompactRangeOptions;
using rocksdb::BottommostLevelCompaction;
using rocksdb::RateLimiter;
using rocksdb::NewGenericRateLimiter;
using rocksdb::PinnableSlice;
using rocksdb::TransactionDBOptions;
using rocksdb::TransactionDB;
using rocksdb::TransactionOptions;
using rocksdb::OptimisticTransactionDB;
using rocksdb::OptimisticTransactionOptions;
using rocksdb::Transaction;
using rocksdb::Checkpoint;
using rocksdb::TransactionLogIterator;
using rocksdb::BatchResult;
using rocksdb::PerfLevel;
using rocksdb::PerfContext;
using rocksdb::MemoryUtil;
using std::shared_ptr;
using std::vector;
using std::unordered_set;
using std::map;
extern "C" {
struct rocksdb_t { DB* rep; };
struct rocksdb_backup_engine_t { BackupEngine* rep; };
struct rocksdb_backup_engine_info_t { std::vector<BackupInfo> rep; };
struct rocksdb_restore_options_t { RestoreOptions rep; };
struct rocksdb_iterator_t { Iterator* rep; };
struct rocksdb_writebatch_t { WriteBatch rep; };
struct rocksdb_writebatch_wi_t { WriteBatchWithIndex* rep; };
struct rocksdb_snapshot_t { const Snapshot* rep; };
struct rocksdb_flushoptions_t { FlushOptions rep; };
struct rocksdb_fifo_compaction_options_t { CompactionOptionsFIFO rep; };
struct rocksdb_readoptions_t {
ReadOptions rep;
// stack variables to set pointers to in ReadOptions
Slice upper_bound;
Slice lower_bound;
};
struct rocksdb_writeoptions_t { WriteOptions rep; };
struct rocksdb_options_t { Options rep; };
struct rocksdb_compactoptions_t {
CompactRangeOptions rep;
};
struct rocksdb_block_based_table_options_t { BlockBasedTableOptions rep; };
struct rocksdb_cuckoo_table_options_t { CuckooTableOptions rep; };
struct rocksdb_seqfile_t { SequentialFile* rep; };
struct rocksdb_randomfile_t { RandomAccessFile* rep; };
struct rocksdb_writablefile_t { WritableFile* rep; };
struct rocksdb_wal_iterator_t { TransactionLogIterator* rep; };
struct rocksdb_wal_readoptions_t { TransactionLogIterator::ReadOptions rep; };
struct rocksdb_filelock_t { FileLock* rep; };
struct rocksdb_logger_t {
std::shared_ptr<Logger> rep;
};
struct rocksdb_cache_t {
std::shared_ptr<Cache> rep;
};
struct rocksdb_livefiles_t { std::vector<LiveFileMetaData> rep; };
struct rocksdb_column_family_handle_t { ColumnFamilyHandle* rep; };
struct rocksdb_envoptions_t { EnvOptions rep; };
struct rocksdb_ingestexternalfileoptions_t { IngestExternalFileOptions rep; };
struct rocksdb_sstfilewriter_t { SstFileWriter* rep; };
struct rocksdb_ratelimiter_t {
std::shared_ptr<RateLimiter> rep;
};
struct rocksdb_perfcontext_t { PerfContext* rep; };
struct rocksdb_pinnableslice_t {
PinnableSlice rep;
};
struct rocksdb_transactiondb_options_t {
TransactionDBOptions rep;
};
struct rocksdb_transactiondb_t {
TransactionDB* rep;
};
struct rocksdb_transaction_options_t {
TransactionOptions rep;
};
struct rocksdb_transaction_t {
Transaction* rep;
};
struct rocksdb_checkpoint_t {
Checkpoint* rep;
};
struct rocksdb_optimistictransactiondb_t {
OptimisticTransactionDB* rep;
};
struct rocksdb_optimistictransaction_options_t {
OptimisticTransactionOptions rep;
};
struct rocksdb_compactionfiltercontext_t {
CompactionFilter::Context rep;
};
struct rocksdb_compactionfilter_t : public CompactionFilter {
void* state_;
void (*destructor_)(void*);
unsigned char (*filter_)(
void*,
int level,
const char* key, size_t key_length,
const char* existing_value, size_t value_length,
char** new_value, size_t *new_value_length,
unsigned char* value_changed);
const char* (*name_)(void*);
unsigned char ignore_snapshots_;
~rocksdb_compactionfilter_t() override { (*destructor_)(state_); }
bool Filter(int level, const Slice& key, const Slice& existing_value,
std::string* new_value, bool* value_changed) const override {
char* c_new_value = nullptr;
size_t new_value_length = 0;
unsigned char c_value_changed = 0;
unsigned char result = (*filter_)(
state_,
level,
key.data(), key.size(),
existing_value.data(), existing_value.size(),
&c_new_value, &new_value_length, &c_value_changed);
if (c_value_changed) {
new_value->assign(c_new_value, new_value_length);
*value_changed = true;
}
return result;
}
const char* Name() const override { return (*name_)(state_); }
bool IgnoreSnapshots() const override { return ignore_snapshots_; }
};
struct rocksdb_compactionfilterfactory_t : public CompactionFilterFactory {
void* state_;
void (*destructor_)(void*);
rocksdb_compactionfilter_t* (*create_compaction_filter_)(
void*, rocksdb_compactionfiltercontext_t* context);
const char* (*name_)(void*);
~rocksdb_compactionfilterfactory_t() override { (*destructor_)(state_); }
std::unique_ptr<CompactionFilter> CreateCompactionFilter(
const CompactionFilter::Context& context) override {
rocksdb_compactionfiltercontext_t ccontext;
ccontext.rep = context;
CompactionFilter* cf = (*create_compaction_filter_)(state_, &ccontext);
return std::unique_ptr<CompactionFilter>(cf);
}
const char* Name() const override { return (*name_)(state_); }
};
struct rocksdb_comparator_t : public Comparator {
void* state_;
void (*destructor_)(void*);
int (*compare_)(
void*,
const char* a, size_t alen,
const char* b, size_t blen);
const char* (*name_)(void*);
~rocksdb_comparator_t() override { (*destructor_)(state_); }
int Compare(const Slice& a, const Slice& b) const override {
return (*compare_)(state_, a.data(), a.size(), b.data(), b.size());
}
const char* Name() const override { return (*name_)(state_); }
// No-ops since the C binding does not support key shortening methods.
void FindShortestSeparator(std::string*, const Slice&) const override {}
void FindShortSuccessor(std::string* /*key*/) const override {}
};
struct rocksdb_filterpolicy_t : public FilterPolicy {
void* state_;
void (*destructor_)(void*);
const char* (*name_)(void*);
char* (*create_)(
void*,
const char* const* key_array, const size_t* key_length_array,
int num_keys,
size_t* filter_length);
unsigned char (*key_match_)(
void*,
const char* key, size_t length,
const char* filter, size_t filter_length);
void (*delete_filter_)(
void*,
const char* filter, size_t filter_length);
~rocksdb_filterpolicy_t() override { (*destructor_)(state_); }
const char* Name() const override { return (*name_)(state_); }
void CreateFilter(const Slice* keys, int n, std::string* dst) const override {
std::vector<const char*> key_pointers(n);
std::vector<size_t> key_sizes(n);
for (int i = 0; i < n; i++) {
key_pointers[i] = keys[i].data();
key_sizes[i] = keys[i].size();
}
size_t len;
char* filter = (*create_)(state_, &key_pointers[0], &key_sizes[0], n, &len);
dst->append(filter, len);
if (delete_filter_ != nullptr) {
(*delete_filter_)(state_, filter, len);
} else {
free(filter);
}
}
bool KeyMayMatch(const Slice& key, const Slice& filter) const override {
return (*key_match_)(state_, key.data(), key.size(),
filter.data(), filter.size());
}
};
struct rocksdb_mergeoperator_t : public MergeOperator {
void* state_;
void (*destructor_)(void*);
const char* (*name_)(void*);
char* (*full_merge_)(
void*,
const char* key, size_t key_length,
const char* existing_value, size_t existing_value_length,
const char* const* operands_list, const size_t* operands_list_length,
int num_operands,
unsigned char* success, size_t* new_value_length);
char* (*partial_merge_)(void*, const char* key, size_t key_length,
const char* const* operands_list,
const size_t* operands_list_length, int num_operands,
unsigned char* success, size_t* new_value_length);
void (*delete_value_)(
void*,
const char* value, size_t value_length);
~rocksdb_mergeoperator_t() override { (*destructor_)(state_); }
const char* Name() const override { return (*name_)(state_); }
bool FullMergeV2(const MergeOperationInput& merge_in,
MergeOperationOutput* merge_out) const override {
size_t n = merge_in.operand_list.size();
std::vector<const char*> operand_pointers(n);
std::vector<size_t> operand_sizes(n);
for (size_t i = 0; i < n; i++) {
Slice operand(merge_in.operand_list[i]);
operand_pointers[i] = operand.data();
operand_sizes[i] = operand.size();
}
const char* existing_value_data = nullptr;
size_t existing_value_len = 0;
if (merge_in.existing_value != nullptr) {
existing_value_data = merge_in.existing_value->data();
existing_value_len = merge_in.existing_value->size();
}
unsigned char success;
size_t new_value_len;
char* tmp_new_value = (*full_merge_)(
state_, merge_in.key.data(), merge_in.key.size(), existing_value_data,
existing_value_len, &operand_pointers[0], &operand_sizes[0],
static_cast<int>(n), &success, &new_value_len);
merge_out->new_value.assign(tmp_new_value, new_value_len);
if (delete_value_ != nullptr) {
(*delete_value_)(state_, tmp_new_value, new_value_len);
} else {
free(tmp_new_value);
}
return success;
}
bool PartialMergeMulti(const Slice& key,
const std::deque<Slice>& operand_list,
std::string* new_value,
Logger* /*logger*/) const override {
size_t operand_count = operand_list.size();
std::vector<const char*> operand_pointers(operand_count);
std::vector<size_t> operand_sizes(operand_count);
for (size_t i = 0; i < operand_count; ++i) {
Slice operand(operand_list[i]);
operand_pointers[i] = operand.data();
operand_sizes[i] = operand.size();
}
unsigned char success;
size_t new_value_len;
char* tmp_new_value = (*partial_merge_)(
state_, key.data(), key.size(), &operand_pointers[0], &operand_sizes[0],
static_cast<int>(operand_count), &success, &new_value_len);
new_value->assign(tmp_new_value, new_value_len);
if (delete_value_ != nullptr) {
(*delete_value_)(state_, tmp_new_value, new_value_len);
} else {
free(tmp_new_value);
}
return success;
}
};
struct rocksdb_dbpath_t {
DbPath rep;
};
struct rocksdb_env_t {
Env* rep;
bool is_default;
};
struct rocksdb_slicetransform_t : public SliceTransform {
void* state_;
void (*destructor_)(void*);
const char* (*name_)(void*);
char* (*transform_)(
void*,
const char* key, size_t length,
size_t* dst_length);
unsigned char (*in_domain_)(
void*,
const char* key, size_t length);
unsigned char (*in_range_)(
void*,
const char* key, size_t length);
~rocksdb_slicetransform_t() override { (*destructor_)(state_); }
const char* Name() const override { return (*name_)(state_); }
Slice Transform(const Slice& src) const override {
size_t len;
char* dst = (*transform_)(state_, src.data(), src.size(), &len);
return Slice(dst, len);
}
bool InDomain(const Slice& src) const override {
return (*in_domain_)(state_, src.data(), src.size());
}
bool InRange(const Slice& src) const override {
return (*in_range_)(state_, src.data(), src.size());
}
};
struct rocksdb_universal_compaction_options_t {
rocksdb::CompactionOptionsUniversal *rep;
};
static bool SaveError(char** errptr, const Status& s) {
assert(errptr != nullptr);
if (s.ok()) {
return false;
} else if (*errptr == nullptr) {
*errptr = strdup(s.ToString().c_str());
} else {
// TODO(sanjay): Merge with existing error?
// This is a bug if *errptr is not created by malloc()
free(*errptr);
*errptr = strdup(s.ToString().c_str());
}
return true;
}
static char* CopyString(const std::string& str) {
char* result = reinterpret_cast<char*>(malloc(sizeof(char) * str.size()));
memcpy(result, str.data(), sizeof(char) * str.size());
return result;
}
rocksdb_t* rocksdb_open(
const rocksdb_options_t* options,
const char* name,
char** errptr) {
DB* db;
if (SaveError(errptr, DB::Open(options->rep, std::string(name), &db))) {
return nullptr;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_t* rocksdb_open_with_ttl(
const rocksdb_options_t* options,
const char* name,
int ttl,
char** errptr) {
rocksdb::DBWithTTL* db;
if (SaveError(errptr, rocksdb::DBWithTTL::Open(options->rep, std::string(name), &db, ttl))) {
return nullptr;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_t* rocksdb_open_for_read_only(
const rocksdb_options_t* options,
const char* name,
unsigned char error_if_log_file_exist,
char** errptr) {
DB* db;
if (SaveError(errptr, DB::OpenForReadOnly(options->rep, std::string(name), &db, error_if_log_file_exist))) {
return nullptr;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_t* rocksdb_open_as_secondary(const rocksdb_options_t* options,
const char* name,
const char* secondary_path,
char** errptr) {
DB* db;
if (SaveError(errptr,
DB::OpenAsSecondary(options->rep, std::string(name),
std::string(secondary_path), &db))) {
return nullptr;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_backup_engine_t* rocksdb_backup_engine_open(
const rocksdb_options_t* options, const char* path, char** errptr) {
BackupEngine* be;
if (SaveError(errptr, BackupEngine::Open(options->rep.env,
BackupableDBOptions(path,
nullptr,
true,
options->rep.info_log.get()),
&be))) {
return nullptr;
}
rocksdb_backup_engine_t* result = new rocksdb_backup_engine_t;
result->rep = be;
return result;
}
void rocksdb_backup_engine_create_new_backup(rocksdb_backup_engine_t* be,
rocksdb_t* db,
char** errptr) {
SaveError(errptr, be->rep->CreateNewBackup(db->rep));
}
void rocksdb_backup_engine_create_new_backup_flush(rocksdb_backup_engine_t* be,
rocksdb_t* db,
unsigned char flush_before_backup,
char** errptr) {
SaveError(errptr, be->rep->CreateNewBackup(db->rep, flush_before_backup));
}
void rocksdb_backup_engine_purge_old_backups(rocksdb_backup_engine_t* be,
uint32_t num_backups_to_keep,
char** errptr) {
SaveError(errptr, be->rep->PurgeOldBackups(num_backups_to_keep));
}
rocksdb_restore_options_t* rocksdb_restore_options_create() {
return new rocksdb_restore_options_t;
}
void rocksdb_restore_options_destroy(rocksdb_restore_options_t* opt) {
delete opt;
}
void rocksdb_restore_options_set_keep_log_files(rocksdb_restore_options_t* opt,
int v) {
opt->rep.keep_log_files = v;
}
void rocksdb_backup_engine_verify_backup(rocksdb_backup_engine_t* be,
uint32_t backup_id, char** errptr) {
SaveError(errptr, be->rep->VerifyBackup(static_cast<BackupID>(backup_id)));
}
void rocksdb_backup_engine_restore_db_from_latest_backup(
rocksdb_backup_engine_t* be, const char* db_dir, const char* wal_dir,
const rocksdb_restore_options_t* restore_options, char** errptr) {
SaveError(errptr, be->rep->RestoreDBFromLatestBackup(std::string(db_dir),
std::string(wal_dir),
restore_options->rep));
}
const rocksdb_backup_engine_info_t* rocksdb_backup_engine_get_backup_info(
rocksdb_backup_engine_t* be) {
rocksdb_backup_engine_info_t* result = new rocksdb_backup_engine_info_t;
be->rep->GetBackupInfo(&result->rep);
return result;
}
int rocksdb_backup_engine_info_count(const rocksdb_backup_engine_info_t* info) {
return static_cast<int>(info->rep.size());
}
int64_t rocksdb_backup_engine_info_timestamp(
const rocksdb_backup_engine_info_t* info, int index) {
return info->rep[index].timestamp;
}
uint32_t rocksdb_backup_engine_info_backup_id(
const rocksdb_backup_engine_info_t* info, int index) {
return info->rep[index].backup_id;
}
uint64_t rocksdb_backup_engine_info_size(
const rocksdb_backup_engine_info_t* info, int index) {
return info->rep[index].size;
}
uint32_t rocksdb_backup_engine_info_number_files(
const rocksdb_backup_engine_info_t* info, int index) {
return info->rep[index].number_files;
}
void rocksdb_backup_engine_info_destroy(
const rocksdb_backup_engine_info_t* info) {
delete info;
}
void rocksdb_backup_engine_close(rocksdb_backup_engine_t* be) {
delete be->rep;
delete be;
}
rocksdb_checkpoint_t* rocksdb_checkpoint_object_create(rocksdb_t* db,
char** errptr) {
Checkpoint* checkpoint;
if (SaveError(errptr, Checkpoint::Create(db->rep, &checkpoint))) {
return nullptr;
}
rocksdb_checkpoint_t* result = new rocksdb_checkpoint_t;
result->rep = checkpoint;
return result;
}
void rocksdb_checkpoint_create(rocksdb_checkpoint_t* checkpoint,
const char* checkpoint_dir,
uint64_t log_size_for_flush, char** errptr) {
SaveError(errptr, checkpoint->rep->CreateCheckpoint(
std::string(checkpoint_dir), log_size_for_flush));
}
void rocksdb_checkpoint_object_destroy(rocksdb_checkpoint_t* checkpoint) {
delete checkpoint->rep;
delete checkpoint;
}
void rocksdb_close(rocksdb_t* db) {
delete db->rep;
delete db;
}
void rocksdb_options_set_uint64add_merge_operator(rocksdb_options_t* opt) {
opt->rep.merge_operator = rocksdb::MergeOperators::CreateUInt64AddOperator();
}
rocksdb_t* rocksdb_open_column_families(
const rocksdb_options_t* db_options,
const char* name,
int num_column_families,
const char** column_family_names,
const rocksdb_options_t** column_family_options,
rocksdb_column_family_handle_t** column_family_handles,
char** errptr) {
std::vector<ColumnFamilyDescriptor> column_families;
for (int i = 0; i < num_column_families; i++) {
column_families.push_back(ColumnFamilyDescriptor(
std::string(column_family_names[i]),
ColumnFamilyOptions(column_family_options[i]->rep)));
}
DB* db;
std::vector<ColumnFamilyHandle*> handles;
if (SaveError(errptr, DB::Open(DBOptions(db_options->rep),
std::string(name), column_families, &handles, &db))) {
return nullptr;
}
for (size_t i = 0; i < handles.size(); i++) {
rocksdb_column_family_handle_t* c_handle = new rocksdb_column_family_handle_t;
c_handle->rep = handles[i];
column_family_handles[i] = c_handle;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_t* rocksdb_open_for_read_only_column_families(
const rocksdb_options_t* db_options,
const char* name,
int num_column_families,
const char** column_family_names,
const rocksdb_options_t** column_family_options,
rocksdb_column_family_handle_t** column_family_handles,
unsigned char error_if_log_file_exist,
char** errptr) {
std::vector<ColumnFamilyDescriptor> column_families;
for (int i = 0; i < num_column_families; i++) {
column_families.push_back(ColumnFamilyDescriptor(
std::string(column_family_names[i]),
ColumnFamilyOptions(column_family_options[i]->rep)));
}
DB* db;
std::vector<ColumnFamilyHandle*> handles;
if (SaveError(errptr, DB::OpenForReadOnly(DBOptions(db_options->rep),
std::string(name), column_families, &handles, &db, error_if_log_file_exist))) {
return nullptr;
}
for (size_t i = 0; i < handles.size(); i++) {
rocksdb_column_family_handle_t* c_handle = new rocksdb_column_family_handle_t;
c_handle->rep = handles[i];
column_family_handles[i] = c_handle;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
rocksdb_t* rocksdb_open_as_secondary_column_families(
const rocksdb_options_t* db_options, const char* name,
const char* secondary_path, int num_column_families,
const char** column_family_names,
const rocksdb_options_t** column_family_options,
rocksdb_column_family_handle_t** column_family_handles, char** errptr) {
std::vector<ColumnFamilyDescriptor> column_families;
for (int i = 0; i != num_column_families; ++i) {
column_families.emplace_back(
std::string(column_family_names[i]),
ColumnFamilyOptions(column_family_options[i]->rep));
}
DB* db;
std::vector<ColumnFamilyHandle*> handles;
if (SaveError(errptr, DB::OpenAsSecondary(DBOptions(db_options->rep),
std::string(name),
std::string(secondary_path),
column_families, &handles, &db))) {
return nullptr;
}
for (size_t i = 0; i != handles.size(); ++i) {
rocksdb_column_family_handle_t* c_handle =
new rocksdb_column_family_handle_t;
c_handle->rep = handles[i];
column_family_handles[i] = c_handle;
}
rocksdb_t* result = new rocksdb_t;
result->rep = db;
return result;
}
char** rocksdb_list_column_families(
const rocksdb_options_t* options,
const char* name,
size_t* lencfs,
char** errptr) {
std::vector<std::string> fams;
SaveError(errptr,
DB::ListColumnFamilies(DBOptions(options->rep),
std::string(name), &fams));
*lencfs = fams.size();
char** column_families = static_cast<char**>(malloc(sizeof(char*) * fams.size()));
for (size_t i = 0; i < fams.size(); i++) {
column_families[i] = strdup(fams[i].c_str());
}
return column_families;
}
void rocksdb_list_column_families_destroy(char** list, size_t len) {
for (size_t i = 0; i < len; ++i) {
free(list[i]);
}
free(list);
}
rocksdb_column_family_handle_t* rocksdb_create_column_family(
rocksdb_t* db,
const rocksdb_options_t* column_family_options,
const char* column_family_name,
char** errptr) {
rocksdb_column_family_handle_t* handle = new rocksdb_column_family_handle_t;
SaveError(errptr,
db->rep->CreateColumnFamily(ColumnFamilyOptions(column_family_options->rep),
std::string(column_family_name), &(handle->rep)));
return handle;
}
void rocksdb_drop_column_family(
rocksdb_t* db,
rocksdb_column_family_handle_t* handle,
char** errptr) {
SaveError(errptr, db->rep->DropColumnFamily(handle->rep));
}
void rocksdb_column_family_handle_destroy(rocksdb_column_family_handle_t* handle) {
delete handle->rep;
delete handle;
}
void rocksdb_put(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr,
db->rep->Put(options->rep, Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_put_cf(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr,
db->rep->Put(options->rep, column_family->rep,
Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_delete(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
const char* key, size_t keylen,
char** errptr) {
SaveError(errptr, db->rep->Delete(options->rep, Slice(key, keylen)));
}
void rocksdb_delete_cf(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
char** errptr) {
SaveError(errptr, db->rep->Delete(options->rep, column_family->rep,
Slice(key, keylen)));
}
void rocksdb_merge(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr,
db->rep->Merge(options->rep, Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_merge_cf(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr,
db->rep->Merge(options->rep, column_family->rep,
Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_write(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_writebatch_t* batch,
char** errptr) {
SaveError(errptr, db->rep->Write(options->rep, &batch->rep));
}
char* rocksdb_get(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = db->rep->Get(options->rep, Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_get_cf(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = db->rep->Get(options->rep, column_family->rep,
Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
void rocksdb_multi_get(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
size_t num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
char** values_list, size_t* values_list_sizes,
char** errs) {
std::vector<Slice> keys(num_keys);
for (size_t i = 0; i < num_keys; i++) {
keys[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<std::string> values(num_keys);
std::vector<Status> statuses = db->rep->MultiGet(options->rep, keys, &values);
for (size_t i = 0; i < num_keys; i++) {
if (statuses[i].ok()) {
values_list[i] = CopyString(values[i]);
values_list_sizes[i] = values[i].size();
errs[i] = nullptr;
} else {
values_list[i] = nullptr;
values_list_sizes[i] = 0;
if (!statuses[i].IsNotFound()) {
errs[i] = strdup(statuses[i].ToString().c_str());
} else {
errs[i] = nullptr;
}
}
}
}
void rocksdb_multi_get_cf(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
const rocksdb_column_family_handle_t* const* column_families,
size_t num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
char** values_list, size_t* values_list_sizes,
char** errs) {
std::vector<Slice> keys(num_keys);
std::vector<ColumnFamilyHandle*> cfs(num_keys);
for (size_t i = 0; i < num_keys; i++) {
keys[i] = Slice(keys_list[i], keys_list_sizes[i]);
cfs[i] = column_families[i]->rep;
}
std::vector<std::string> values(num_keys);
std::vector<Status> statuses = db->rep->MultiGet(options->rep, cfs, keys, &values);
for (size_t i = 0; i < num_keys; i++) {
if (statuses[i].ok()) {
values_list[i] = CopyString(values[i]);
values_list_sizes[i] = values[i].size();
errs[i] = nullptr;
} else {
values_list[i] = nullptr;
values_list_sizes[i] = 0;
if (!statuses[i].IsNotFound()) {
errs[i] = strdup(statuses[i].ToString().c_str());
} else {
errs[i] = nullptr;
}
}
}
}
rocksdb_iterator_t* rocksdb_create_iterator(
rocksdb_t* db,
const rocksdb_readoptions_t* options) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = db->rep->NewIterator(options->rep);
return result;
}
rocksdb_wal_iterator_t* rocksdb_get_updates_since(
rocksdb_t* db, uint64_t seq_number,
const rocksdb_wal_readoptions_t* options,
char** errptr) {
std::unique_ptr<TransactionLogIterator> iter;
TransactionLogIterator::ReadOptions ro;
if (options!=nullptr) {
ro = options->rep;
}
if (SaveError(errptr, db->rep->GetUpdatesSince(seq_number, &iter, ro))) {
return nullptr;
}
rocksdb_wal_iterator_t* result = new rocksdb_wal_iterator_t;
result->rep = iter.release();
return result;
}
void rocksdb_wal_iter_next(rocksdb_wal_iterator_t* iter) {
iter->rep->Next();
}
unsigned char rocksdb_wal_iter_valid(const rocksdb_wal_iterator_t* iter) {
return iter->rep->Valid();
}
void rocksdb_wal_iter_status (const rocksdb_wal_iterator_t* iter, char** errptr) {
SaveError(errptr, iter->rep->status());
}
void rocksdb_wal_iter_destroy (const rocksdb_wal_iterator_t* iter) {
delete iter->rep;
delete iter;
}
rocksdb_writebatch_t* rocksdb_wal_iter_get_batch (const rocksdb_wal_iterator_t* iter, uint64_t* seq) {
rocksdb_writebatch_t* result = rocksdb_writebatch_create();
BatchResult wal_batch = iter->rep->GetBatch();
result->rep = std::move(*wal_batch.writeBatchPtr);
if (seq != nullptr) {
*seq = wal_batch.sequence;
}
return result;
}
uint64_t rocksdb_get_latest_sequence_number (rocksdb_t *db) {
return db->rep->GetLatestSequenceNumber();
}
rocksdb_iterator_t* rocksdb_create_iterator_cf(
rocksdb_t* db,
const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = db->rep->NewIterator(options->rep, column_family->rep);
return result;
}
void rocksdb_create_iterators(
rocksdb_t *db,
rocksdb_readoptions_t* opts,
rocksdb_column_family_handle_t** column_families,
rocksdb_iterator_t** iterators,
size_t size,
char** errptr) {
std::vector<ColumnFamilyHandle*> column_families_vec;
for (size_t i = 0; i < size; i++) {
column_families_vec.push_back(column_families[i]->rep);
}
std::vector<Iterator*> res;
Status status = db->rep->NewIterators(opts->rep, column_families_vec, &res);
assert(res.size() == size);
if (SaveError(errptr, status)) {
return;
}
for (size_t i = 0; i < size; i++) {
iterators[i] = new rocksdb_iterator_t;
iterators[i]->rep = res[i];
}
}
const rocksdb_snapshot_t* rocksdb_create_snapshot(
rocksdb_t* db) {
rocksdb_snapshot_t* result = new rocksdb_snapshot_t;
result->rep = db->rep->GetSnapshot();
return result;
}
void rocksdb_release_snapshot(
rocksdb_t* db,
const rocksdb_snapshot_t* snapshot) {
db->rep->ReleaseSnapshot(snapshot->rep);
delete snapshot;
}
char* rocksdb_property_value(
rocksdb_t* db,
const char* propname) {
std::string tmp;
if (db->rep->GetProperty(Slice(propname), &tmp)) {
// We use strdup() since we expect human readable output.
return strdup(tmp.c_str());
} else {
return nullptr;
}
}
int rocksdb_property_int(
rocksdb_t* db,
const char* propname,
uint64_t *out_val) {
if (db->rep->GetIntProperty(Slice(propname), out_val)) {
return 0;
} else {
return -1;
}
}
int rocksdb_property_int_cf(
rocksdb_t* db,
rocksdb_column_family_handle_t* column_family,
const char* propname,
uint64_t *out_val) {
if (db->rep->GetIntProperty(column_family->rep, Slice(propname), out_val)) {
return 0;
} else {
return -1;
}
}
char* rocksdb_property_value_cf(
rocksdb_t* db,
rocksdb_column_family_handle_t* column_family,
const char* propname) {
std::string tmp;
if (db->rep->GetProperty(column_family->rep, Slice(propname), &tmp)) {
// We use strdup() since we expect human readable output.
return strdup(tmp.c_str());
} else {
return nullptr;
}
}
void rocksdb_approximate_sizes(
rocksdb_t* db,
int num_ranges,
const char* const* range_start_key, const size_t* range_start_key_len,
const char* const* range_limit_key, const size_t* range_limit_key_len,
uint64_t* sizes) {
Range* ranges = new Range[num_ranges];
for (int i = 0; i < num_ranges; i++) {
ranges[i].start = Slice(range_start_key[i], range_start_key_len[i]);
ranges[i].limit = Slice(range_limit_key[i], range_limit_key_len[i]);
}
db->rep->GetApproximateSizes(ranges, num_ranges, sizes);
delete[] ranges;
}
void rocksdb_approximate_sizes_cf(
rocksdb_t* db,
rocksdb_column_family_handle_t* column_family,
int num_ranges,
const char* const* range_start_key, const size_t* range_start_key_len,
const char* const* range_limit_key, const size_t* range_limit_key_len,
uint64_t* sizes) {
Range* ranges = new Range[num_ranges];
for (int i = 0; i < num_ranges; i++) {
ranges[i].start = Slice(range_start_key[i], range_start_key_len[i]);
ranges[i].limit = Slice(range_limit_key[i], range_limit_key_len[i]);
}
db->rep->GetApproximateSizes(column_family->rep, ranges, num_ranges, sizes);
delete[] ranges;
}
void rocksdb_delete_file(
rocksdb_t* db,
const char* name) {
db->rep->DeleteFile(name);
}
const rocksdb_livefiles_t* rocksdb_livefiles(
rocksdb_t* db) {
rocksdb_livefiles_t* result = new rocksdb_livefiles_t;
db->rep->GetLiveFilesMetaData(&result->rep);
return result;
}
void rocksdb_compact_range(
rocksdb_t* db,
const char* start_key, size_t start_key_len,
const char* limit_key, size_t limit_key_len) {
Slice a, b;
db->rep->CompactRange(
CompactRangeOptions(),
// Pass nullptr Slice if corresponding "const char*" is nullptr
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));
}
void rocksdb_compact_range_cf(
rocksdb_t* db,
rocksdb_column_family_handle_t* column_family,
const char* start_key, size_t start_key_len,
const char* limit_key, size_t limit_key_len) {
Slice a, b;
db->rep->CompactRange(
CompactRangeOptions(), column_family->rep,
// Pass nullptr Slice if corresponding "const char*" is nullptr
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));
}
void rocksdb_compact_range_opt(rocksdb_t* db, rocksdb_compactoptions_t* opt,
const char* start_key, size_t start_key_len,
const char* limit_key, size_t limit_key_len) {
Slice a, b;
db->rep->CompactRange(
opt->rep,
// Pass nullptr Slice if corresponding "const char*" is nullptr
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));
}
void rocksdb_compact_range_cf_opt(rocksdb_t* db,
rocksdb_column_family_handle_t* column_family,
rocksdb_compactoptions_t* opt,
const char* start_key, size_t start_key_len,
const char* limit_key, size_t limit_key_len) {
Slice a, b;
db->rep->CompactRange(
opt->rep, column_family->rep,
// Pass nullptr Slice if corresponding "const char*" is nullptr
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr));
}
void rocksdb_flush(
rocksdb_t* db,
const rocksdb_flushoptions_t* options,
char** errptr) {
SaveError(errptr, db->rep->Flush(options->rep));
}
void rocksdb_flush_cf(
rocksdb_t* db,
const rocksdb_flushoptions_t* options,
rocksdb_column_family_handle_t* column_family,
char** errptr) {
SaveError(errptr, db->rep->Flush(options->rep, column_family->rep));
}
void rocksdb_disable_file_deletions(
rocksdb_t* db,
char** errptr) {
SaveError(errptr, db->rep->DisableFileDeletions());
}
void rocksdb_enable_file_deletions(
rocksdb_t* db,
unsigned char force,
char** errptr) {
SaveError(errptr, db->rep->EnableFileDeletions(force));
}
void rocksdb_destroy_db(
const rocksdb_options_t* options,
const char* name,
char** errptr) {
SaveError(errptr, DestroyDB(name, options->rep));
}
void rocksdb_repair_db(
const rocksdb_options_t* options,
const char* name,
char** errptr) {
SaveError(errptr, RepairDB(name, options->rep));
}
void rocksdb_iter_destroy(rocksdb_iterator_t* iter) {
delete iter->rep;
delete iter;
}
unsigned char rocksdb_iter_valid(const rocksdb_iterator_t* iter) {
return iter->rep->Valid();
}
void rocksdb_iter_seek_to_first(rocksdb_iterator_t* iter) {
iter->rep->SeekToFirst();
}
void rocksdb_iter_seek_to_last(rocksdb_iterator_t* iter) {
iter->rep->SeekToLast();
}
void rocksdb_iter_seek(rocksdb_iterator_t* iter, const char* k, size_t klen) {
iter->rep->Seek(Slice(k, klen));
}
void rocksdb_iter_seek_for_prev(rocksdb_iterator_t* iter, const char* k,
size_t klen) {
iter->rep->SeekForPrev(Slice(k, klen));
}
void rocksdb_iter_next(rocksdb_iterator_t* iter) {
iter->rep->Next();
}
void rocksdb_iter_prev(rocksdb_iterator_t* iter) {
iter->rep->Prev();
}
const char* rocksdb_iter_key(const rocksdb_iterator_t* iter, size_t* klen) {
Slice s = iter->rep->key();
*klen = s.size();
return s.data();
}
const char* rocksdb_iter_value(const rocksdb_iterator_t* iter, size_t* vlen) {
Slice s = iter->rep->value();
*vlen = s.size();
return s.data();
}
void rocksdb_iter_get_error(const rocksdb_iterator_t* iter, char** errptr) {
SaveError(errptr, iter->rep->status());
}
rocksdb_writebatch_t* rocksdb_writebatch_create() {
return new rocksdb_writebatch_t;
}
rocksdb_writebatch_t* rocksdb_writebatch_create_from(const char* rep,
size_t size) {
rocksdb_writebatch_t* b = new rocksdb_writebatch_t;
b->rep = WriteBatch(std::string(rep, size));
return b;
}
void rocksdb_writebatch_destroy(rocksdb_writebatch_t* b) {
delete b;
}
void rocksdb_writebatch_clear(rocksdb_writebatch_t* b) {
b->rep.Clear();
}
int rocksdb_writebatch_count(rocksdb_writebatch_t* b) {
return b->rep.Count();
}
void rocksdb_writebatch_put(
rocksdb_writebatch_t* b,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep.Put(Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_put_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep.Put(column_family->rep, Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_putv(
rocksdb_writebatch_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep.Put(SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_putv_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep.Put(column_family->rep, SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_merge(
rocksdb_writebatch_t* b,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep.Merge(Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_merge_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep.Merge(column_family->rep, Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_mergev(
rocksdb_writebatch_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep.Merge(SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_mergev_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep.Merge(column_family->rep, SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_delete(
rocksdb_writebatch_t* b,
const char* key, size_t klen) {
b->rep.Delete(Slice(key, klen));
}
void rocksdb_writebatch_delete_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen) {
b->rep.Delete(column_family->rep, Slice(key, klen));
}
void rocksdb_writebatch_deletev(
rocksdb_writebatch_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
b->rep.Delete(SliceParts(key_slices.data(), num_keys));
}
void rocksdb_writebatch_deletev_cf(
rocksdb_writebatch_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
b->rep.Delete(column_family->rep, SliceParts(key_slices.data(), num_keys));
}
void rocksdb_writebatch_delete_range(rocksdb_writebatch_t* b,
const char* start_key,
size_t start_key_len, const char* end_key,
size_t end_key_len) {
b->rep.DeleteRange(Slice(start_key, start_key_len),
Slice(end_key, end_key_len));
}
void rocksdb_writebatch_delete_range_cf(
rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family,
const char* start_key, size_t start_key_len, const char* end_key,
size_t end_key_len) {
b->rep.DeleteRange(column_family->rep, Slice(start_key, start_key_len),
Slice(end_key, end_key_len));
}
void rocksdb_writebatch_delete_rangev(rocksdb_writebatch_t* b, int num_keys,
const char* const* start_keys_list,
const size_t* start_keys_list_sizes,
const char* const* end_keys_list,
const size_t* end_keys_list_sizes) {
std::vector<Slice> start_key_slices(num_keys);
std::vector<Slice> end_key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
start_key_slices[i] = Slice(start_keys_list[i], start_keys_list_sizes[i]);
end_key_slices[i] = Slice(end_keys_list[i], end_keys_list_sizes[i]);
}
b->rep.DeleteRange(SliceParts(start_key_slices.data(), num_keys),
SliceParts(end_key_slices.data(), num_keys));
}
void rocksdb_writebatch_delete_rangev_cf(
rocksdb_writebatch_t* b, rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* start_keys_list,
const size_t* start_keys_list_sizes, const char* const* end_keys_list,
const size_t* end_keys_list_sizes) {
std::vector<Slice> start_key_slices(num_keys);
std::vector<Slice> end_key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
start_key_slices[i] = Slice(start_keys_list[i], start_keys_list_sizes[i]);
end_key_slices[i] = Slice(end_keys_list[i], end_keys_list_sizes[i]);
}
b->rep.DeleteRange(column_family->rep,
SliceParts(start_key_slices.data(), num_keys),
SliceParts(end_key_slices.data(), num_keys));
}
void rocksdb_writebatch_put_log_data(
rocksdb_writebatch_t* b,
const char* blob, size_t len) {
b->rep.PutLogData(Slice(blob, len));
}
class H : public WriteBatch::Handler {
public:
void* state_;
void (*put_)(void*, const char* k, size_t klen, const char* v, size_t vlen);
void (*deleted_)(void*, const char* k, size_t klen);
void Put(const Slice& key, const Slice& value) override {
(*put_)(state_, key.data(), key.size(), value.data(), value.size());
}
void Delete(const Slice& key) override {
(*deleted_)(state_, key.data(), key.size());
}
};
void rocksdb_writebatch_iterate(
rocksdb_writebatch_t* b,
void* state,
void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
void (*deleted)(void*, const char* k, size_t klen)) {
H handler;
handler.state_ = state;
handler.put_ = put;
handler.deleted_ = deleted;
b->rep.Iterate(&handler);
}
const char* rocksdb_writebatch_data(rocksdb_writebatch_t* b, size_t* size) {
*size = b->rep.GetDataSize();
return b->rep.Data().c_str();
}
void rocksdb_writebatch_set_save_point(rocksdb_writebatch_t* b) {
b->rep.SetSavePoint();
}
void rocksdb_writebatch_rollback_to_save_point(rocksdb_writebatch_t* b,
char** errptr) {
SaveError(errptr, b->rep.RollbackToSavePoint());
}
void rocksdb_writebatch_pop_save_point(rocksdb_writebatch_t* b, char** errptr) {
SaveError(errptr, b->rep.PopSavePoint());
}
rocksdb_writebatch_wi_t* rocksdb_writebatch_wi_create(size_t reserved_bytes, unsigned char overwrite_key) {
rocksdb_writebatch_wi_t* b = new rocksdb_writebatch_wi_t;
b->rep = new WriteBatchWithIndex(BytewiseComparator(), reserved_bytes, overwrite_key);
return b;
}
void rocksdb_writebatch_wi_destroy(rocksdb_writebatch_wi_t* b) {
if (b->rep) {
delete b->rep;
}
delete b;
}
void rocksdb_writebatch_wi_clear(rocksdb_writebatch_wi_t* b) {
b->rep->Clear();
}
int rocksdb_writebatch_wi_count(rocksdb_writebatch_wi_t* b) {
return b->rep->GetWriteBatch()->Count();
}
void rocksdb_writebatch_wi_put(
rocksdb_writebatch_wi_t* b,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep->Put(Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_wi_put_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep->Put(column_family->rep, Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_wi_putv(
rocksdb_writebatch_wi_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep->Put(SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_wi_putv_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep->Put(column_family->rep, SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_wi_merge(
rocksdb_writebatch_wi_t* b,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep->Merge(Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_wi_merge_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen,
const char* val, size_t vlen) {
b->rep->Merge(column_family->rep, Slice(key, klen), Slice(val, vlen));
}
void rocksdb_writebatch_wi_mergev(
rocksdb_writebatch_wi_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep->Merge(SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_wi_mergev_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes,
int num_values, const char* const* values_list,
const size_t* values_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
std::vector<Slice> value_slices(num_values);
for (int i = 0; i < num_values; i++) {
value_slices[i] = Slice(values_list[i], values_list_sizes[i]);
}
b->rep->Merge(column_family->rep, SliceParts(key_slices.data(), num_keys),
SliceParts(value_slices.data(), num_values));
}
void rocksdb_writebatch_wi_delete(
rocksdb_writebatch_wi_t* b,
const char* key, size_t klen) {
b->rep->Delete(Slice(key, klen));
}
void rocksdb_writebatch_wi_delete_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen) {
b->rep->Delete(column_family->rep, Slice(key, klen));
}
void rocksdb_writebatch_wi_deletev(
rocksdb_writebatch_wi_t* b,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
b->rep->Delete(SliceParts(key_slices.data(), num_keys));
}
void rocksdb_writebatch_wi_deletev_cf(
rocksdb_writebatch_wi_t* b,
rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* keys_list,
const size_t* keys_list_sizes) {
std::vector<Slice> key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
key_slices[i] = Slice(keys_list[i], keys_list_sizes[i]);
}
b->rep->Delete(column_family->rep, SliceParts(key_slices.data(), num_keys));
}
void rocksdb_writebatch_wi_delete_range(rocksdb_writebatch_wi_t* b,
const char* start_key,
size_t start_key_len, const char* end_key,
size_t end_key_len) {
b->rep->DeleteRange(Slice(start_key, start_key_len),
Slice(end_key, end_key_len));
}
void rocksdb_writebatch_wi_delete_range_cf(
rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family,
const char* start_key, size_t start_key_len, const char* end_key,
size_t end_key_len) {
b->rep->DeleteRange(column_family->rep, Slice(start_key, start_key_len),
Slice(end_key, end_key_len));
}
void rocksdb_writebatch_wi_delete_rangev(rocksdb_writebatch_wi_t* b, int num_keys,
const char* const* start_keys_list,
const size_t* start_keys_list_sizes,
const char* const* end_keys_list,
const size_t* end_keys_list_sizes) {
std::vector<Slice> start_key_slices(num_keys);
std::vector<Slice> end_key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
start_key_slices[i] = Slice(start_keys_list[i], start_keys_list_sizes[i]);
end_key_slices[i] = Slice(end_keys_list[i], end_keys_list_sizes[i]);
}
b->rep->DeleteRange(SliceParts(start_key_slices.data(), num_keys),
SliceParts(end_key_slices.data(), num_keys));
}
void rocksdb_writebatch_wi_delete_rangev_cf(
rocksdb_writebatch_wi_t* b, rocksdb_column_family_handle_t* column_family,
int num_keys, const char* const* start_keys_list,
const size_t* start_keys_list_sizes, const char* const* end_keys_list,
const size_t* end_keys_list_sizes) {
std::vector<Slice> start_key_slices(num_keys);
std::vector<Slice> end_key_slices(num_keys);
for (int i = 0; i < num_keys; i++) {
start_key_slices[i] = Slice(start_keys_list[i], start_keys_list_sizes[i]);
end_key_slices[i] = Slice(end_keys_list[i], end_keys_list_sizes[i]);
}
b->rep->DeleteRange(column_family->rep,
SliceParts(start_key_slices.data(), num_keys),
SliceParts(end_key_slices.data(), num_keys));
}
void rocksdb_writebatch_wi_put_log_data(
rocksdb_writebatch_wi_t* b,
const char* blob, size_t len) {
b->rep->PutLogData(Slice(blob, len));
}
void rocksdb_writebatch_wi_iterate(
rocksdb_writebatch_wi_t* b,
void* state,
void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
void (*deleted)(void*, const char* k, size_t klen)) {
H handler;
handler.state_ = state;
handler.put_ = put;
handler.deleted_ = deleted;
b->rep->GetWriteBatch()->Iterate(&handler);
}
const char* rocksdb_writebatch_wi_data(rocksdb_writebatch_wi_t* b, size_t* size) {
WriteBatch* wb = b->rep->GetWriteBatch();
*size = wb->GetDataSize();
return wb->Data().c_str();
}
void rocksdb_writebatch_wi_set_save_point(rocksdb_writebatch_wi_t* b) {
b->rep->SetSavePoint();
}
void rocksdb_writebatch_wi_rollback_to_save_point(rocksdb_writebatch_wi_t* b,
char** errptr) {
SaveError(errptr, b->rep->RollbackToSavePoint());
}
rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base(
rocksdb_writebatch_wi_t* wbwi,
rocksdb_iterator_t* base_iterator) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = wbwi->rep->NewIteratorWithBase(base_iterator->rep);
delete base_iterator;
return result;
}
rocksdb_iterator_t* rocksdb_writebatch_wi_create_iterator_with_base_cf(
rocksdb_writebatch_wi_t* wbwi, rocksdb_iterator_t* base_iterator,
rocksdb_column_family_handle_t* column_family) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep =
wbwi->rep->NewIteratorWithBase(column_family->rep, base_iterator->rep);
delete base_iterator;
return result;
}
char* rocksdb_writebatch_wi_get_from_batch(
rocksdb_writebatch_wi_t* wbwi,
const rocksdb_options_t* options,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = wbwi->rep->GetFromBatch(options->rep, Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_writebatch_wi_get_from_batch_cf(
rocksdb_writebatch_wi_t* wbwi,
const rocksdb_options_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = wbwi->rep->GetFromBatch(column_family->rep, options->rep,
Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_writebatch_wi_get_from_batch_and_db(
rocksdb_writebatch_wi_t* wbwi,
rocksdb_t* db,
const rocksdb_readoptions_t* options,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = wbwi->rep->GetFromBatchAndDB(db->rep, options->rep, Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_writebatch_wi_get_from_batch_and_db_cf(
rocksdb_writebatch_wi_t* wbwi,
rocksdb_t* db,
const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
size_t* vallen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = wbwi->rep->GetFromBatchAndDB(db->rep, options->rep, column_family->rep,
Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
void rocksdb_write_writebatch_wi(
rocksdb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_writebatch_wi_t* wbwi,
char** errptr) {
WriteBatch* wb = wbwi->rep->GetWriteBatch();
SaveError(errptr, db->rep->Write(options->rep, wb));
}
rocksdb_block_based_table_options_t*
rocksdb_block_based_options_create() {
return new rocksdb_block_based_table_options_t;
}
void rocksdb_block_based_options_destroy(
rocksdb_block_based_table_options_t* options) {
delete options;
}
void rocksdb_block_based_options_set_block_size(
rocksdb_block_based_table_options_t* options, size_t block_size) {
options->rep.block_size = block_size;
}
void rocksdb_block_based_options_set_block_size_deviation(
rocksdb_block_based_table_options_t* options, int block_size_deviation) {
options->rep.block_size_deviation = block_size_deviation;
}
void rocksdb_block_based_options_set_block_restart_interval(
rocksdb_block_based_table_options_t* options, int block_restart_interval) {
options->rep.block_restart_interval = block_restart_interval;
}
void rocksdb_block_based_options_set_index_block_restart_interval(
rocksdb_block_based_table_options_t* options, int index_block_restart_interval) {
options->rep.index_block_restart_interval = index_block_restart_interval;
}
void rocksdb_block_based_options_set_metadata_block_size(
rocksdb_block_based_table_options_t* options, uint64_t metadata_block_size) {
options->rep.metadata_block_size = metadata_block_size;
}
void rocksdb_block_based_options_set_partition_filters(
rocksdb_block_based_table_options_t* options, unsigned char partition_filters) {
options->rep.partition_filters = partition_filters;
}
void rocksdb_block_based_options_set_use_delta_encoding(
rocksdb_block_based_table_options_t* options, unsigned char use_delta_encoding) {
options->rep.use_delta_encoding = use_delta_encoding;
}
void rocksdb_block_based_options_set_filter_policy(
rocksdb_block_based_table_options_t* options,
rocksdb_filterpolicy_t* filter_policy) {
options->rep.filter_policy.reset(filter_policy);
}
void rocksdb_block_based_options_set_no_block_cache(
rocksdb_block_based_table_options_t* options,
unsigned char no_block_cache) {
options->rep.no_block_cache = no_block_cache;
}
void rocksdb_block_based_options_set_block_cache(
rocksdb_block_based_table_options_t* options,
rocksdb_cache_t* block_cache) {
if (block_cache) {
options->rep.block_cache = block_cache->rep;
}
}
void rocksdb_block_based_options_set_block_cache_compressed(
rocksdb_block_based_table_options_t* options,
rocksdb_cache_t* block_cache_compressed) {
if (block_cache_compressed) {
options->rep.block_cache_compressed = block_cache_compressed->rep;
}
}
void rocksdb_block_based_options_set_whole_key_filtering(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.whole_key_filtering = v;
}
void rocksdb_block_based_options_set_format_version(
rocksdb_block_based_table_options_t* options, int v) {
options->rep.format_version = v;
}
void rocksdb_block_based_options_set_index_type(
rocksdb_block_based_table_options_t* options, int v) {
options->rep.index_type = static_cast<BlockBasedTableOptions::IndexType>(v);
}
void rocksdb_block_based_options_set_hash_index_allow_collision(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.hash_index_allow_collision = v;
}
void rocksdb_block_based_options_set_cache_index_and_filter_blocks(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.cache_index_and_filter_blocks = v;
}
void rocksdb_block_based_options_set_cache_index_and_filter_blocks_with_high_priority(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.cache_index_and_filter_blocks_with_high_priority = v;
}
void rocksdb_block_based_options_set_pin_l0_filter_and_index_blocks_in_cache(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.pin_l0_filter_and_index_blocks_in_cache = v;
}
void rocksdb_block_based_options_set_pin_top_level_index_and_filter(
rocksdb_block_based_table_options_t* options, unsigned char v) {
options->rep.pin_top_level_index_and_filter = v;
}
void rocksdb_options_set_block_based_table_factory(
rocksdb_options_t *opt,
rocksdb_block_based_table_options_t* table_options) {
if (table_options) {
opt->rep.table_factory.reset(
rocksdb::NewBlockBasedTableFactory(table_options->rep));
}
}
rocksdb_cuckoo_table_options_t*
rocksdb_cuckoo_options_create() {
return new rocksdb_cuckoo_table_options_t;
}
void rocksdb_cuckoo_options_destroy(
rocksdb_cuckoo_table_options_t* options) {
delete options;
}
void rocksdb_cuckoo_options_set_hash_ratio(
rocksdb_cuckoo_table_options_t* options, double v) {
options->rep.hash_table_ratio = v;
}
void rocksdb_cuckoo_options_set_max_search_depth(
rocksdb_cuckoo_table_options_t* options, uint32_t v) {
options->rep.max_search_depth = v;
}
void rocksdb_cuckoo_options_set_cuckoo_block_size(
rocksdb_cuckoo_table_options_t* options, uint32_t v) {
options->rep.cuckoo_block_size = v;
}
void rocksdb_cuckoo_options_set_identity_as_first_hash(
rocksdb_cuckoo_table_options_t* options, unsigned char v) {
options->rep.identity_as_first_hash = v;
}
void rocksdb_cuckoo_options_set_use_module_hash(
rocksdb_cuckoo_table_options_t* options, unsigned char v) {
options->rep.use_module_hash = v;
}
void rocksdb_options_set_cuckoo_table_factory(
rocksdb_options_t *opt,
rocksdb_cuckoo_table_options_t* table_options) {
if (table_options) {
opt->rep.table_factory.reset(
rocksdb::NewCuckooTableFactory(table_options->rep));
}
}
void rocksdb_set_options(
rocksdb_t* db, int count, const char* const keys[], const char* const values[], char** errptr) {
std::unordered_map<std::string, std::string> options_map;
for (int i=0; i<count; i++)
options_map[keys[i]] = values[i];
SaveError(errptr,
db->rep->SetOptions(options_map));
}
void rocksdb_set_options_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* handle, int count, const char* const keys[], const char* const values[], char** errptr) {
std::unordered_map<std::string, std::string> options_map;
for (int i=0; i<count; i++)
options_map[keys[i]] = values[i];
SaveError(errptr,
db->rep->SetOptions(handle->rep, options_map));
}
rocksdb_options_t* rocksdb_options_create() {
return new rocksdb_options_t;
}
void rocksdb_options_destroy(rocksdb_options_t* options) {
delete options;
}
void rocksdb_options_increase_parallelism(
rocksdb_options_t* opt, int total_threads) {
opt->rep.IncreaseParallelism(total_threads);
}
void rocksdb_options_optimize_for_point_lookup(
rocksdb_options_t* opt, uint64_t block_cache_size_mb) {
opt->rep.OptimizeForPointLookup(block_cache_size_mb);
}
void rocksdb_options_optimize_level_style_compaction(
rocksdb_options_t* opt, uint64_t memtable_memory_budget) {
opt->rep.OptimizeLevelStyleCompaction(memtable_memory_budget);
}
void rocksdb_options_optimize_universal_style_compaction(
rocksdb_options_t* opt, uint64_t memtable_memory_budget) {
opt->rep.OptimizeUniversalStyleCompaction(memtable_memory_budget);
}
void rocksdb_options_set_allow_ingest_behind(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.allow_ingest_behind = v;
}
void rocksdb_options_set_compaction_filter(
rocksdb_options_t* opt,
rocksdb_compactionfilter_t* filter) {
opt->rep.compaction_filter = filter;
}
void rocksdb_options_set_compaction_filter_factory(
rocksdb_options_t* opt, rocksdb_compactionfilterfactory_t* factory) {
opt->rep.compaction_filter_factory =
std::shared_ptr<CompactionFilterFactory>(factory);
}
void rocksdb_options_compaction_readahead_size(
rocksdb_options_t* opt, size_t s) {
opt->rep.compaction_readahead_size = s;
}
void rocksdb_options_set_comparator(
rocksdb_options_t* opt,
rocksdb_comparator_t* cmp) {
opt->rep.comparator = cmp;
}
void rocksdb_options_set_merge_operator(
rocksdb_options_t* opt,
rocksdb_mergeoperator_t* merge_operator) {
opt->rep.merge_operator = std::shared_ptr<MergeOperator>(merge_operator);
}
void rocksdb_options_set_create_if_missing(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.create_if_missing = v;
}
void rocksdb_options_set_create_missing_column_families(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.create_missing_column_families = v;
}
void rocksdb_options_set_error_if_exists(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.error_if_exists = v;
}
void rocksdb_options_set_paranoid_checks(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.paranoid_checks = v;
}
void rocksdb_options_set_db_paths(rocksdb_options_t* opt,
const rocksdb_dbpath_t** dbpath_values,
size_t num_paths) {
std::vector<DbPath> db_paths(num_paths);
for (size_t i = 0; i < num_paths; ++i) {
db_paths[i] = dbpath_values[i]->rep;
}
opt->rep.db_paths = db_paths;
}
void rocksdb_options_set_env(rocksdb_options_t* opt, rocksdb_env_t* env) {
opt->rep.env = (env ? env->rep : nullptr);
}
void rocksdb_options_set_info_log(rocksdb_options_t* opt, rocksdb_logger_t* l) {
if (l) {
opt->rep.info_log = l->rep;
}
}
void rocksdb_options_set_info_log_level(
rocksdb_options_t* opt, int v) {
opt->rep.info_log_level = static_cast<InfoLogLevel>(v);
}
void rocksdb_options_set_db_write_buffer_size(rocksdb_options_t* opt,
size_t s) {
opt->rep.db_write_buffer_size = s;
}
void rocksdb_options_set_write_buffer_size(rocksdb_options_t* opt, size_t s) {
opt->rep.write_buffer_size = s;
}
void rocksdb_options_set_max_open_files(rocksdb_options_t* opt, int n) {
opt->rep.max_open_files = n;
}
void rocksdb_options_set_max_file_opening_threads(rocksdb_options_t* opt, int n) {
opt->rep.max_file_opening_threads = n;
}
void rocksdb_options_set_max_total_wal_size(rocksdb_options_t* opt, uint64_t n) {
opt->rep.max_total_wal_size = n;
}
void rocksdb_options_set_target_file_size_base(
rocksdb_options_t* opt, uint64_t n) {
opt->rep.target_file_size_base = n;
}
void rocksdb_options_set_target_file_size_multiplier(
rocksdb_options_t* opt, int n) {
opt->rep.target_file_size_multiplier = n;
}
void rocksdb_options_set_max_bytes_for_level_base(
rocksdb_options_t* opt, uint64_t n) {
opt->rep.max_bytes_for_level_base = n;
}
void rocksdb_options_set_snap_refresh_nanos(rocksdb_options_t* opt,
uint64_t n) {
opt->rep.snap_refresh_nanos = n;
}
void rocksdb_options_set_level_compaction_dynamic_level_bytes(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.level_compaction_dynamic_level_bytes = v;
}
void rocksdb_options_set_max_bytes_for_level_multiplier(rocksdb_options_t* opt,
double n) {
opt->rep.max_bytes_for_level_multiplier = n;
}
void rocksdb_options_set_max_compaction_bytes(rocksdb_options_t* opt,
uint64_t n) {
opt->rep.max_compaction_bytes = n;
}
void rocksdb_options_set_max_bytes_for_level_multiplier_additional(
rocksdb_options_t* opt, int* level_values, size_t num_levels) {
opt->rep.max_bytes_for_level_multiplier_additional.resize(num_levels);
for (size_t i = 0; i < num_levels; ++i) {
opt->rep.max_bytes_for_level_multiplier_additional[i] = level_values[i];
}
}
void rocksdb_options_enable_statistics(rocksdb_options_t* opt) {
opt->rep.statistics = rocksdb::CreateDBStatistics();
}
void rocksdb_options_set_skip_stats_update_on_db_open(rocksdb_options_t* opt,
unsigned char val) {
opt->rep.skip_stats_update_on_db_open = val;
}
void rocksdb_options_set_num_levels(rocksdb_options_t* opt, int n) {
opt->rep.num_levels = n;
}
void rocksdb_options_set_level0_file_num_compaction_trigger(
rocksdb_options_t* opt, int n) {
opt->rep.level0_file_num_compaction_trigger = n;
}
void rocksdb_options_set_level0_slowdown_writes_trigger(
rocksdb_options_t* opt, int n) {
opt->rep.level0_slowdown_writes_trigger = n;
}
void rocksdb_options_set_level0_stop_writes_trigger(
rocksdb_options_t* opt, int n) {
opt->rep.level0_stop_writes_trigger = n;
}
void rocksdb_options_set_max_mem_compaction_level(rocksdb_options_t* /*opt*/,
int /*n*/) {}
void rocksdb_options_set_wal_recovery_mode(rocksdb_options_t* opt,int mode) {
opt->rep.wal_recovery_mode = static_cast<WALRecoveryMode>(mode);
}
void rocksdb_options_set_compression(rocksdb_options_t* opt, int t) {
opt->rep.compression = static_cast<CompressionType>(t);
}
void rocksdb_options_set_compression_per_level(rocksdb_options_t* opt,
int* level_values,
size_t num_levels) {
opt->rep.compression_per_level.resize(num_levels);
for (size_t i = 0; i < num_levels; ++i) {
opt->rep.compression_per_level[i] =
static_cast<CompressionType>(level_values[i]);
}
}
void rocksdb_options_set_bottommost_compression_options(rocksdb_options_t* opt,
int w_bits, int level,
int strategy,
int max_dict_bytes,
bool enabled) {
opt->rep.bottommost_compression_opts.window_bits = w_bits;
opt->rep.bottommost_compression_opts.level = level;
opt->rep.bottommost_compression_opts.strategy = strategy;
opt->rep.bottommost_compression_opts.max_dict_bytes = max_dict_bytes;
opt->rep.bottommost_compression_opts.enabled = enabled;
}
void rocksdb_options_set_compression_options(rocksdb_options_t* opt, int w_bits,
int level, int strategy,
int max_dict_bytes) {
opt->rep.compression_opts.window_bits = w_bits;
opt->rep.compression_opts.level = level;
opt->rep.compression_opts.strategy = strategy;
opt->rep.compression_opts.max_dict_bytes = max_dict_bytes;
}
void rocksdb_options_set_prefix_extractor(
rocksdb_options_t* opt, rocksdb_slicetransform_t* prefix_extractor) {
opt->rep.prefix_extractor.reset(prefix_extractor);
}
void rocksdb_options_set_use_fsync(
rocksdb_options_t* opt, int use_fsync) {
opt->rep.use_fsync = use_fsync;
}
void rocksdb_options_set_db_log_dir(
rocksdb_options_t* opt, const char* db_log_dir) {
opt->rep.db_log_dir = db_log_dir;
}
void rocksdb_options_set_wal_dir(
rocksdb_options_t* opt, const char* v) {
opt->rep.wal_dir = v;
}
void rocksdb_options_set_WAL_ttl_seconds(rocksdb_options_t* opt, uint64_t ttl) {
opt->rep.WAL_ttl_seconds = ttl;
}
void rocksdb_options_set_WAL_size_limit_MB(
rocksdb_options_t* opt, uint64_t limit) {
opt->rep.WAL_size_limit_MB = limit;
}
void rocksdb_options_set_manifest_preallocation_size(
rocksdb_options_t* opt, size_t v) {
opt->rep.manifest_preallocation_size = v;
}
// noop
void rocksdb_options_set_purge_redundant_kvs_while_flush(
rocksdb_options_t* /*opt*/, unsigned char /*v*/) {}
void rocksdb_options_set_use_direct_reads(rocksdb_options_t* opt,
unsigned char v) {
opt->rep.use_direct_reads = v;
}
void rocksdb_options_set_use_direct_io_for_flush_and_compaction(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.use_direct_io_for_flush_and_compaction = v;
}
void rocksdb_options_set_allow_mmap_reads(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.allow_mmap_reads = v;
}
void rocksdb_options_set_allow_mmap_writes(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.allow_mmap_writes = v;
}
void rocksdb_options_set_is_fd_close_on_exec(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.is_fd_close_on_exec = v;
}
void rocksdb_options_set_skip_log_error_on_recovery(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.skip_log_error_on_recovery = v;
}
void rocksdb_options_set_stats_dump_period_sec(
rocksdb_options_t* opt, unsigned int v) {
opt->rep.stats_dump_period_sec = v;
}
void rocksdb_options_set_advise_random_on_open(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.advise_random_on_open = v;
}
void rocksdb_options_set_access_hint_on_compaction_start(
rocksdb_options_t* opt, int v) {
switch(v) {
case 0:
opt->rep.access_hint_on_compaction_start = rocksdb::Options::NONE;
break;
case 1:
opt->rep.access_hint_on_compaction_start = rocksdb::Options::NORMAL;
break;
case 2:
opt->rep.access_hint_on_compaction_start = rocksdb::Options::SEQUENTIAL;
break;
case 3:
opt->rep.access_hint_on_compaction_start = rocksdb::Options::WILLNEED;
break;
}
}
void rocksdb_options_set_use_adaptive_mutex(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.use_adaptive_mutex = v;
}
void rocksdb_options_set_wal_bytes_per_sync(
rocksdb_options_t* opt, uint64_t v) {
opt->rep.wal_bytes_per_sync = v;
}
void rocksdb_options_set_bytes_per_sync(
rocksdb_options_t* opt, uint64_t v) {
opt->rep.bytes_per_sync = v;
}
void rocksdb_options_set_writable_file_max_buffer_size(rocksdb_options_t* opt,
uint64_t v) {
opt->rep.writable_file_max_buffer_size = static_cast<size_t>(v);
}
void rocksdb_options_set_allow_concurrent_memtable_write(rocksdb_options_t* opt,
unsigned char v) {
opt->rep.allow_concurrent_memtable_write = v;
}
void rocksdb_options_set_enable_write_thread_adaptive_yield(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.enable_write_thread_adaptive_yield = v;
}
void rocksdb_options_set_max_sequential_skip_in_iterations(
rocksdb_options_t* opt, uint64_t v) {
opt->rep.max_sequential_skip_in_iterations = v;
}
void rocksdb_options_set_max_write_buffer_number(rocksdb_options_t* opt, int n) {
opt->rep.max_write_buffer_number = n;
}
void rocksdb_options_set_min_write_buffer_number_to_merge(rocksdb_options_t* opt, int n) {
opt->rep.min_write_buffer_number_to_merge = n;
}
void rocksdb_options_set_max_write_buffer_number_to_maintain(
rocksdb_options_t* opt, int n) {
opt->rep.max_write_buffer_number_to_maintain = n;
}
void rocksdb_options_set_max_write_buffer_size_to_maintain(
rocksdb_options_t* opt, int64_t n) {
opt->rep.max_write_buffer_size_to_maintain = n;
}
void rocksdb_options_set_enable_pipelined_write(rocksdb_options_t* opt,
unsigned char v) {
opt->rep.enable_pipelined_write = v;
}
void rocksdb_options_set_unordered_write(rocksdb_options_t* opt,
unsigned char v) {
opt->rep.unordered_write = v;
}
void rocksdb_options_set_max_subcompactions(rocksdb_options_t* opt,
uint32_t n) {
opt->rep.max_subcompactions = n;
}
void rocksdb_options_set_max_background_jobs(rocksdb_options_t* opt, int n) {
opt->rep.max_background_jobs = n;
}
void rocksdb_options_set_max_background_compactions(rocksdb_options_t* opt, int n) {
opt->rep.max_background_compactions = n;
}
void rocksdb_options_set_base_background_compactions(rocksdb_options_t* opt,
int n) {
opt->rep.base_background_compactions = n;
}
void rocksdb_options_set_max_background_flushes(rocksdb_options_t* opt, int n) {
opt->rep.max_background_flushes = n;
}
void rocksdb_options_set_max_log_file_size(rocksdb_options_t* opt, size_t v) {
opt->rep.max_log_file_size = v;
}
void rocksdb_options_set_log_file_time_to_roll(rocksdb_options_t* opt, size_t v) {
opt->rep.log_file_time_to_roll = v;
}
void rocksdb_options_set_keep_log_file_num(rocksdb_options_t* opt, size_t v) {
opt->rep.keep_log_file_num = v;
}
void rocksdb_options_set_recycle_log_file_num(rocksdb_options_t* opt,
size_t v) {
opt->rep.recycle_log_file_num = v;
}
void rocksdb_options_set_soft_rate_limit(rocksdb_options_t* opt, double v) {
opt->rep.soft_rate_limit = v;
}
void rocksdb_options_set_hard_rate_limit(rocksdb_options_t* opt, double v) {
opt->rep.hard_rate_limit = v;
}
void rocksdb_options_set_soft_pending_compaction_bytes_limit(rocksdb_options_t* opt, size_t v) {
opt->rep.soft_pending_compaction_bytes_limit = v;
}
void rocksdb_options_set_hard_pending_compaction_bytes_limit(rocksdb_options_t* opt, size_t v) {
opt->rep.hard_pending_compaction_bytes_limit = v;
}
void rocksdb_options_set_rate_limit_delay_max_milliseconds(
rocksdb_options_t* opt, unsigned int v) {
opt->rep.rate_limit_delay_max_milliseconds = v;
}
void rocksdb_options_set_max_manifest_file_size(
rocksdb_options_t* opt, size_t v) {
opt->rep.max_manifest_file_size = v;
}
void rocksdb_options_set_table_cache_numshardbits(
rocksdb_options_t* opt, int v) {
opt->rep.table_cache_numshardbits = v;
}
void rocksdb_options_set_table_cache_remove_scan_count_limit(
rocksdb_options_t* /*opt*/, int /*v*/) {
// this option is deprecated
}
void rocksdb_options_set_arena_block_size(
rocksdb_options_t* opt, size_t v) {
opt->rep.arena_block_size = v;
}
void rocksdb_options_set_disable_auto_compactions(rocksdb_options_t* opt, int disable) {
opt->rep.disable_auto_compactions = disable;
}
void rocksdb_options_set_optimize_filters_for_hits(rocksdb_options_t* opt, int v) {
opt->rep.optimize_filters_for_hits = v;
}
void rocksdb_options_set_delete_obsolete_files_period_micros(
rocksdb_options_t* opt, uint64_t v) {
opt->rep.delete_obsolete_files_period_micros = v;
}
void rocksdb_options_prepare_for_bulk_load(rocksdb_options_t* opt) {
opt->rep.PrepareForBulkLoad();
}
void rocksdb_options_set_memtable_vector_rep(rocksdb_options_t *opt) {
opt->rep.memtable_factory.reset(new rocksdb::VectorRepFactory);
}
void rocksdb_options_set_memtable_prefix_bloom_size_ratio(
rocksdb_options_t* opt, double v) {
opt->rep.memtable_prefix_bloom_size_ratio = v;
}
void rocksdb_options_set_memtable_huge_page_size(rocksdb_options_t* opt,
size_t v) {
opt->rep.memtable_huge_page_size = v;
}
void rocksdb_options_set_hash_skip_list_rep(
rocksdb_options_t *opt, size_t bucket_count,
int32_t skiplist_height, int32_t skiplist_branching_factor) {
rocksdb::MemTableRepFactory* factory = rocksdb::NewHashSkipListRepFactory(
bucket_count, skiplist_height, skiplist_branching_factor);
opt->rep.memtable_factory.reset(factory);
}
void rocksdb_options_set_hash_link_list_rep(
rocksdb_options_t *opt, size_t bucket_count) {
opt->rep.memtable_factory.reset(rocksdb::NewHashLinkListRepFactory(bucket_count));
}
void rocksdb_options_set_plain_table_factory(
rocksdb_options_t *opt, uint32_t user_key_len, int bloom_bits_per_key,
double hash_table_ratio, size_t index_sparseness) {
rocksdb::PlainTableOptions options;
options.user_key_len = user_key_len;
options.bloom_bits_per_key = bloom_bits_per_key;
options.hash_table_ratio = hash_table_ratio;
options.index_sparseness = index_sparseness;
rocksdb::TableFactory* factory = rocksdb::NewPlainTableFactory(options);
opt->rep.table_factory.reset(factory);
}
void rocksdb_options_set_max_successive_merges(
rocksdb_options_t* opt, size_t v) {
opt->rep.max_successive_merges = v;
}
void rocksdb_options_set_bloom_locality(
rocksdb_options_t* opt, uint32_t v) {
opt->rep.bloom_locality = v;
}
void rocksdb_options_set_inplace_update_support(
rocksdb_options_t* opt, unsigned char v) {
opt->rep.inplace_update_support = v;
}
void rocksdb_options_set_inplace_update_num_locks(
rocksdb_options_t* opt, size_t v) {
opt->rep.inplace_update_num_locks = v;
}
void rocksdb_options_set_report_bg_io_stats(
rocksdb_options_t* opt, int v) {
opt->rep.report_bg_io_stats = v;
}
void rocksdb_options_set_compaction_style(rocksdb_options_t *opt, int style) {
opt->rep.compaction_style = static_cast<rocksdb::CompactionStyle>(style);
}
void rocksdb_options_set_universal_compaction_options(rocksdb_options_t *opt, rocksdb_universal_compaction_options_t *uco) {
opt->rep.compaction_options_universal = *(uco->rep);
}
void rocksdb_options_set_fifo_compaction_options(
rocksdb_options_t* opt,
rocksdb_fifo_compaction_options_t* fifo) {
opt->rep.compaction_options_fifo = fifo->rep;
}
char *rocksdb_options_statistics_get_string(rocksdb_options_t *opt) {
rocksdb::Statistics *statistics = opt->rep.statistics.get();
if (statistics) {
return strdup(statistics->ToString().c_str());
}
return nullptr;
}
void rocksdb_options_set_ratelimiter(rocksdb_options_t *opt, rocksdb_ratelimiter_t *limiter) {
if (limiter) {
opt->rep.rate_limiter = limiter->rep;
}
}
rocksdb_ratelimiter_t* rocksdb_ratelimiter_create(
int64_t rate_bytes_per_sec,
int64_t refill_period_us,
int32_t fairness) {
rocksdb_ratelimiter_t* rate_limiter = new rocksdb_ratelimiter_t;
rate_limiter->rep.reset(
NewGenericRateLimiter(rate_bytes_per_sec,
refill_period_us, fairness));
return rate_limiter;
}
void rocksdb_ratelimiter_destroy(rocksdb_ratelimiter_t *limiter) {
delete limiter;
}
void rocksdb_set_perf_level(int v) {
PerfLevel level = static_cast<PerfLevel>(v);
SetPerfLevel(level);
}
rocksdb_perfcontext_t* rocksdb_perfcontext_create() {
rocksdb_perfcontext_t* context = new rocksdb_perfcontext_t;
context->rep = rocksdb::get_perf_context();
return context;
}
void rocksdb_perfcontext_reset(rocksdb_perfcontext_t* context) {
context->rep->Reset();
}
char* rocksdb_perfcontext_report(rocksdb_perfcontext_t* context,
unsigned char exclude_zero_counters) {
return strdup(context->rep->ToString(exclude_zero_counters).c_str());
}
uint64_t rocksdb_perfcontext_metric(rocksdb_perfcontext_t* context,
int metric) {
PerfContext* rep = context->rep;
switch (metric) {
case rocksdb_user_key_comparison_count:
return rep->user_key_comparison_count;
case rocksdb_block_cache_hit_count:
return rep->block_cache_hit_count;
case rocksdb_block_read_count:
return rep->block_read_count;
case rocksdb_block_read_byte:
return rep->block_read_byte;
case rocksdb_block_read_time:
return rep->block_read_time;
case rocksdb_block_checksum_time:
return rep->block_checksum_time;
case rocksdb_block_decompress_time:
return rep->block_decompress_time;
case rocksdb_get_read_bytes:
return rep->get_read_bytes;
case rocksdb_multiget_read_bytes:
return rep->multiget_read_bytes;
case rocksdb_iter_read_bytes:
return rep->iter_read_bytes;
case rocksdb_internal_key_skipped_count:
return rep->internal_key_skipped_count;
case rocksdb_internal_delete_skipped_count:
return rep->internal_delete_skipped_count;
case rocksdb_internal_recent_skipped_count:
return rep->internal_recent_skipped_count;
case rocksdb_internal_merge_count:
return rep->internal_merge_count;
case rocksdb_get_snapshot_time:
return rep->get_snapshot_time;
case rocksdb_get_from_memtable_time:
return rep->get_from_memtable_time;
case rocksdb_get_from_memtable_count:
return rep->get_from_memtable_count;
case rocksdb_get_post_process_time:
return rep->get_post_process_time;
case rocksdb_get_from_output_files_time:
return rep->get_from_output_files_time;
case rocksdb_seek_on_memtable_time:
return rep->seek_on_memtable_time;
case rocksdb_seek_on_memtable_count:
return rep->seek_on_memtable_count;
case rocksdb_next_on_memtable_count:
return rep->next_on_memtable_count;
case rocksdb_prev_on_memtable_count:
return rep->prev_on_memtable_count;
case rocksdb_seek_child_seek_time:
return rep->seek_child_seek_time;
case rocksdb_seek_child_seek_count:
return rep->seek_child_seek_count;
case rocksdb_seek_min_heap_time:
return rep->seek_min_heap_time;
case rocksdb_seek_max_heap_time:
return rep->seek_max_heap_time;
case rocksdb_seek_internal_seek_time:
return rep->seek_internal_seek_time;
case rocksdb_find_next_user_entry_time:
return rep->find_next_user_entry_time;
case rocksdb_write_wal_time:
return rep->write_wal_time;
case rocksdb_write_memtable_time:
return rep->write_memtable_time;
case rocksdb_write_delay_time:
return rep->write_delay_time;
case rocksdb_write_pre_and_post_process_time:
return rep->write_pre_and_post_process_time;
case rocksdb_db_mutex_lock_nanos:
return rep->db_mutex_lock_nanos;
case rocksdb_db_condition_wait_nanos:
return rep->db_condition_wait_nanos;
case rocksdb_merge_operator_time_nanos:
return rep->merge_operator_time_nanos;
case rocksdb_read_index_block_nanos:
return rep->read_index_block_nanos;
case rocksdb_read_filter_block_nanos:
return rep->read_filter_block_nanos;
case rocksdb_new_table_block_iter_nanos:
return rep->new_table_block_iter_nanos;
case rocksdb_new_table_iterator_nanos:
return rep->new_table_iterator_nanos;
case rocksdb_block_seek_nanos:
return rep->block_seek_nanos;
case rocksdb_find_table_nanos:
return rep->find_table_nanos;
case rocksdb_bloom_memtable_hit_count:
return rep->bloom_memtable_hit_count;
case rocksdb_bloom_memtable_miss_count:
return rep->bloom_memtable_miss_count;
case rocksdb_bloom_sst_hit_count:
return rep->bloom_sst_hit_count;
case rocksdb_bloom_sst_miss_count:
return rep->bloom_sst_miss_count;
case rocksdb_key_lock_wait_time:
return rep->key_lock_wait_time;
case rocksdb_key_lock_wait_count:
return rep->key_lock_wait_count;
case rocksdb_env_new_sequential_file_nanos:
return rep->env_new_sequential_file_nanos;
case rocksdb_env_new_random_access_file_nanos:
return rep->env_new_random_access_file_nanos;
case rocksdb_env_new_writable_file_nanos:
return rep->env_new_writable_file_nanos;
case rocksdb_env_reuse_writable_file_nanos:
return rep->env_reuse_writable_file_nanos;
case rocksdb_env_new_random_rw_file_nanos:
return rep->env_new_random_rw_file_nanos;
case rocksdb_env_new_directory_nanos:
return rep->env_new_directory_nanos;
case rocksdb_env_file_exists_nanos:
return rep->env_file_exists_nanos;
case rocksdb_env_get_children_nanos:
return rep->env_get_children_nanos;
case rocksdb_env_get_children_file_attributes_nanos:
return rep->env_get_children_file_attributes_nanos;
case rocksdb_env_delete_file_nanos:
return rep->env_delete_file_nanos;
case rocksdb_env_create_dir_nanos:
return rep->env_create_dir_nanos;
case rocksdb_env_create_dir_if_missing_nanos:
return rep->env_create_dir_if_missing_nanos;
case rocksdb_env_delete_dir_nanos:
return rep->env_delete_dir_nanos;
case rocksdb_env_get_file_size_nanos:
return rep->env_get_file_size_nanos;
case rocksdb_env_get_file_modification_time_nanos:
return rep->env_get_file_modification_time_nanos;
case rocksdb_env_rename_file_nanos:
return rep->env_rename_file_nanos;
case rocksdb_env_link_file_nanos:
return rep->env_link_file_nanos;
case rocksdb_env_lock_file_nanos:
return rep->env_lock_file_nanos;
case rocksdb_env_unlock_file_nanos:
return rep->env_unlock_file_nanos;
case rocksdb_env_new_logger_nanos:
return rep->env_new_logger_nanos;
default:
break;
}
return 0;
}
void rocksdb_perfcontext_destroy(rocksdb_perfcontext_t* context) {
delete context;
}
/*
TODO:
DB::OpenForReadOnly
DB::KeyMayExist
DB::GetOptions
DB::GetSortedWalFiles
DB::GetLatestSequenceNumber
DB::GetUpdatesSince
DB::GetDbIdentity
DB::RunManualCompaction
custom cache
table_properties_collectors
*/
rocksdb_compactionfilter_t* rocksdb_compactionfilter_create(
void* state,
void (*destructor)(void*),
unsigned char (*filter)(
void*,
int level,
const char* key, size_t key_length,
const char* existing_value, size_t value_length,
char** new_value, size_t *new_value_length,
unsigned char* value_changed),
const char* (*name)(void*)) {
rocksdb_compactionfilter_t* result = new rocksdb_compactionfilter_t;
result->state_ = state;
result->destructor_ = destructor;
result->filter_ = filter;
result->ignore_snapshots_ = true;
result->name_ = name;
return result;
}
void rocksdb_compactionfilter_set_ignore_snapshots(
rocksdb_compactionfilter_t* filter,
unsigned char whether_ignore) {
filter->ignore_snapshots_ = whether_ignore;
}
void rocksdb_compactionfilter_destroy(rocksdb_compactionfilter_t* filter) {
delete filter;
}
unsigned char rocksdb_compactionfiltercontext_is_full_compaction(
rocksdb_compactionfiltercontext_t* context) {
return context->rep.is_full_compaction;
}
unsigned char rocksdb_compactionfiltercontext_is_manual_compaction(
rocksdb_compactionfiltercontext_t* context) {
return context->rep.is_manual_compaction;
}
rocksdb_compactionfilterfactory_t* rocksdb_compactionfilterfactory_create(
void* state, void (*destructor)(void*),
rocksdb_compactionfilter_t* (*create_compaction_filter)(
void*, rocksdb_compactionfiltercontext_t* context),
const char* (*name)(void*)) {
rocksdb_compactionfilterfactory_t* result =
new rocksdb_compactionfilterfactory_t;
result->state_ = state;
result->destructor_ = destructor;
result->create_compaction_filter_ = create_compaction_filter;
result->name_ = name;
return result;
}
void rocksdb_compactionfilterfactory_destroy(
rocksdb_compactionfilterfactory_t* factory) {
delete factory;
}
rocksdb_comparator_t* rocksdb_comparator_create(
void* state,
void (*destructor)(void*),
int (*compare)(
void*,
const char* a, size_t alen,
const char* b, size_t blen),
const char* (*name)(void*)) {
rocksdb_comparator_t* result = new rocksdb_comparator_t;
result->state_ = state;
result->destructor_ = destructor;
result->compare_ = compare;
result->name_ = name;
return result;
}
void rocksdb_comparator_destroy(rocksdb_comparator_t* cmp) {
delete cmp;
}
rocksdb_filterpolicy_t* rocksdb_filterpolicy_create(
void* state,
void (*destructor)(void*),
char* (*create_filter)(
void*,
const char* const* key_array, const size_t* key_length_array,
int num_keys,
size_t* filter_length),
unsigned char (*key_may_match)(
void*,
const char* key, size_t length,
const char* filter, size_t filter_length),
void (*delete_filter)(
void*,
const char* filter, size_t filter_length),
const char* (*name)(void*)) {
rocksdb_filterpolicy_t* result = new rocksdb_filterpolicy_t;
result->state_ = state;
result->destructor_ = destructor;
result->create_ = create_filter;
result->key_match_ = key_may_match;
result->delete_filter_ = delete_filter;
result->name_ = name;
return result;
}
void rocksdb_filterpolicy_destroy(rocksdb_filterpolicy_t* filter) {
delete filter;
}
rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom_format(int bits_per_key, bool original_format) {
// Make a rocksdb_filterpolicy_t, but override all of its methods so
// they delegate to a NewBloomFilterPolicy() instead of user
// supplied C functions.
struct Wrapper : public rocksdb_filterpolicy_t {
const FilterPolicy* rep_;
~Wrapper() override { delete rep_; }
const char* Name() const override { return rep_->Name(); }
void CreateFilter(const Slice* keys, int n,
std::string* dst) const override {
return rep_->CreateFilter(keys, n, dst);
}
bool KeyMayMatch(const Slice& key, const Slice& filter) const override {
return rep_->KeyMayMatch(key, filter);
}
static void DoNothing(void*) { }
};
Wrapper* wrapper = new Wrapper;
wrapper->rep_ = NewBloomFilterPolicy(bits_per_key, original_format);
wrapper->state_ = nullptr;
wrapper->delete_filter_ = nullptr;
wrapper->destructor_ = &Wrapper::DoNothing;
return wrapper;
}
rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom_full(int bits_per_key) {
return rocksdb_filterpolicy_create_bloom_format(bits_per_key, false);
}
rocksdb_filterpolicy_t* rocksdb_filterpolicy_create_bloom(int bits_per_key) {
return rocksdb_filterpolicy_create_bloom_format(bits_per_key, true);
}
rocksdb_mergeoperator_t* rocksdb_mergeoperator_create(
void* state, void (*destructor)(void*),
char* (*full_merge)(void*, const char* key, size_t key_length,
const char* existing_value,
size_t existing_value_length,
const char* const* operands_list,
const size_t* operands_list_length, int num_operands,
unsigned char* success, size_t* new_value_length),
char* (*partial_merge)(void*, const char* key, size_t key_length,
const char* const* operands_list,
const size_t* operands_list_length, int num_operands,
unsigned char* success, size_t* new_value_length),
void (*delete_value)(void*, const char* value, size_t value_length),
const char* (*name)(void*)) {
rocksdb_mergeoperator_t* result = new rocksdb_mergeoperator_t;
result->state_ = state;
result->destructor_ = destructor;
result->full_merge_ = full_merge;
result->partial_merge_ = partial_merge;
result->delete_value_ = delete_value;
result->name_ = name;
return result;
}
void rocksdb_mergeoperator_destroy(rocksdb_mergeoperator_t* merge_operator) {
delete merge_operator;
}
rocksdb_readoptions_t* rocksdb_readoptions_create() {
return new rocksdb_readoptions_t;
}
void rocksdb_readoptions_destroy(rocksdb_readoptions_t* opt) {
delete opt;
}
void rocksdb_readoptions_set_verify_checksums(
rocksdb_readoptions_t* opt,
unsigned char v) {
opt->rep.verify_checksums = v;
}
void rocksdb_readoptions_set_fill_cache(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.fill_cache = v;
}
void rocksdb_readoptions_set_snapshot(
rocksdb_readoptions_t* opt,
const rocksdb_snapshot_t* snap) {
opt->rep.snapshot = (snap ? snap->rep : nullptr);
}
void rocksdb_readoptions_set_iterate_upper_bound(
rocksdb_readoptions_t* opt,
const char* key, size_t keylen) {
if (key == nullptr) {
opt->upper_bound = Slice();
opt->rep.iterate_upper_bound = nullptr;
} else {
opt->upper_bound = Slice(key, keylen);
opt->rep.iterate_upper_bound = &opt->upper_bound;
}
}
void rocksdb_readoptions_set_iterate_lower_bound(
rocksdb_readoptions_t *opt,
const char* key, size_t keylen) {
if (key == nullptr) {
opt->lower_bound = Slice();
opt->rep.iterate_lower_bound = nullptr;
} else {
opt->lower_bound = Slice(key, keylen);
opt->rep.iterate_lower_bound = &opt->lower_bound;
}
}
void rocksdb_readoptions_set_read_tier(
rocksdb_readoptions_t* opt, int v) {
opt->rep.read_tier = static_cast<rocksdb::ReadTier>(v);
}
void rocksdb_readoptions_set_tailing(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.tailing = v;
}
void rocksdb_readoptions_set_managed(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.managed = v;
}
void rocksdb_readoptions_set_readahead_size(
rocksdb_readoptions_t* opt, size_t v) {
opt->rep.readahead_size = v;
}
void rocksdb_readoptions_set_prefix_same_as_start(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.prefix_same_as_start = v;
}
void rocksdb_readoptions_set_pin_data(rocksdb_readoptions_t* opt,
unsigned char v) {
opt->rep.pin_data = v;
}
void rocksdb_readoptions_set_total_order_seek(rocksdb_readoptions_t* opt,
unsigned char v) {
opt->rep.total_order_seek = v;
}
void rocksdb_readoptions_set_max_skippable_internal_keys(
rocksdb_readoptions_t* opt,
uint64_t v) {
opt->rep.max_skippable_internal_keys = v;
}
void rocksdb_readoptions_set_background_purge_on_iterator_cleanup(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.background_purge_on_iterator_cleanup = v;
}
void rocksdb_readoptions_set_ignore_range_deletions(
rocksdb_readoptions_t* opt, unsigned char v) {
opt->rep.ignore_range_deletions = v;
}
rocksdb_writeoptions_t* rocksdb_writeoptions_create() {
return new rocksdb_writeoptions_t;
}
void rocksdb_writeoptions_destroy(rocksdb_writeoptions_t* opt) {
delete opt;
}
void rocksdb_writeoptions_set_sync(
rocksdb_writeoptions_t* opt, unsigned char v) {
opt->rep.sync = v;
}
void rocksdb_writeoptions_disable_WAL(rocksdb_writeoptions_t* opt, int disable) {
opt->rep.disableWAL = disable;
}
void rocksdb_writeoptions_set_ignore_missing_column_families(
rocksdb_writeoptions_t* opt,
unsigned char v) {
opt->rep.ignore_missing_column_families = v;
}
void rocksdb_writeoptions_set_no_slowdown(
rocksdb_writeoptions_t* opt,
unsigned char v) {
opt->rep.no_slowdown = v;
}
void rocksdb_writeoptions_set_low_pri(
rocksdb_writeoptions_t* opt,
unsigned char v) {
opt->rep.low_pri = v;
}
rocksdb_compactoptions_t* rocksdb_compactoptions_create() {
return new rocksdb_compactoptions_t;
}
void rocksdb_compactoptions_destroy(rocksdb_compactoptions_t* opt) {
delete opt;
}
void rocksdb_compactoptions_set_bottommost_level_compaction(
rocksdb_compactoptions_t* opt, unsigned char v) {
opt->rep.bottommost_level_compaction = static_cast<BottommostLevelCompaction>(v);
}
void rocksdb_compactoptions_set_exclusive_manual_compaction(
rocksdb_compactoptions_t* opt, unsigned char v) {
opt->rep.exclusive_manual_compaction = v;
}
void rocksdb_compactoptions_set_change_level(rocksdb_compactoptions_t* opt,
unsigned char v) {
opt->rep.change_level = v;
}
void rocksdb_compactoptions_set_target_level(rocksdb_compactoptions_t* opt,
int n) {
opt->rep.target_level = n;
}
rocksdb_flushoptions_t* rocksdb_flushoptions_create() {
return new rocksdb_flushoptions_t;
}
void rocksdb_flushoptions_destroy(rocksdb_flushoptions_t* opt) {
delete opt;
}
void rocksdb_flushoptions_set_wait(
rocksdb_flushoptions_t* opt, unsigned char v) {
opt->rep.wait = v;
}
rocksdb_cache_t* rocksdb_cache_create_lru(size_t capacity) {
rocksdb_cache_t* c = new rocksdb_cache_t;
c->rep = NewLRUCache(capacity);
return c;
}
void rocksdb_cache_destroy(rocksdb_cache_t* cache) {
delete cache;
}
void rocksdb_cache_set_capacity(rocksdb_cache_t* cache, size_t capacity) {
cache->rep->SetCapacity(capacity);
}
size_t rocksdb_cache_get_usage(rocksdb_cache_t* cache) {
return cache->rep->GetUsage();
}
size_t rocksdb_cache_get_pinned_usage(rocksdb_cache_t* cache) {
return cache->rep->GetPinnedUsage();
}
rocksdb_dbpath_t* rocksdb_dbpath_create(const char* path, uint64_t target_size) {
rocksdb_dbpath_t* result = new rocksdb_dbpath_t;
result->rep.path = std::string(path);
result->rep.target_size = target_size;
return result;
}
void rocksdb_dbpath_destroy(rocksdb_dbpath_t* dbpath) {
delete dbpath;
}
rocksdb_env_t* rocksdb_create_default_env() {
rocksdb_env_t* result = new rocksdb_env_t;
result->rep = Env::Default();
result->is_default = true;
return result;
}
rocksdb_env_t* rocksdb_create_mem_env() {
rocksdb_env_t* result = new rocksdb_env_t;
result->rep = rocksdb::NewMemEnv(Env::Default());
result->is_default = false;
return result;
}
void rocksdb_env_set_background_threads(rocksdb_env_t* env, int n) {
env->rep->SetBackgroundThreads(n);
}
void rocksdb_env_set_high_priority_background_threads(rocksdb_env_t* env, int n) {
env->rep->SetBackgroundThreads(n, Env::HIGH);
}
void rocksdb_env_join_all_threads(rocksdb_env_t* env) {
env->rep->WaitForJoin();
}
void rocksdb_env_lower_thread_pool_io_priority(rocksdb_env_t* env) {
env->rep->LowerThreadPoolIOPriority();
}
void rocksdb_env_lower_high_priority_thread_pool_io_priority(rocksdb_env_t* env) {
env->rep->LowerThreadPoolIOPriority(Env::HIGH);
}
void rocksdb_env_lower_thread_pool_cpu_priority(rocksdb_env_t* env) {
env->rep->LowerThreadPoolCPUPriority();
}
void rocksdb_env_lower_high_priority_thread_pool_cpu_priority(rocksdb_env_t* env) {
env->rep->LowerThreadPoolCPUPriority(Env::HIGH);
}
void rocksdb_env_destroy(rocksdb_env_t* env) {
if (!env->is_default) delete env->rep;
delete env;
}
rocksdb_envoptions_t* rocksdb_envoptions_create() {
rocksdb_envoptions_t* opt = new rocksdb_envoptions_t;
return opt;
}
void rocksdb_envoptions_destroy(rocksdb_envoptions_t* opt) { delete opt; }
rocksdb_sstfilewriter_t* rocksdb_sstfilewriter_create(
const rocksdb_envoptions_t* env, const rocksdb_options_t* io_options) {
rocksdb_sstfilewriter_t* writer = new rocksdb_sstfilewriter_t;
writer->rep = new SstFileWriter(env->rep, io_options->rep);
return writer;
}
rocksdb_sstfilewriter_t* rocksdb_sstfilewriter_create_with_comparator(
const rocksdb_envoptions_t* env, const rocksdb_options_t* io_options,
const rocksdb_comparator_t* /*comparator*/) {
rocksdb_sstfilewriter_t* writer = new rocksdb_sstfilewriter_t;
writer->rep = new SstFileWriter(env->rep, io_options->rep);
return writer;
}
void rocksdb_sstfilewriter_open(rocksdb_sstfilewriter_t* writer,
const char* name, char** errptr) {
SaveError(errptr, writer->rep->Open(std::string(name)));
}
void rocksdb_sstfilewriter_add(rocksdb_sstfilewriter_t* writer, const char* key,
size_t keylen, const char* val, size_t vallen,
char** errptr) {
SaveError(errptr, writer->rep->Put(Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_sstfilewriter_put(rocksdb_sstfilewriter_t* writer, const char* key,
size_t keylen, const char* val, size_t vallen,
char** errptr) {
SaveError(errptr, writer->rep->Put(Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_sstfilewriter_merge(rocksdb_sstfilewriter_t* writer,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr, writer->rep->Merge(Slice(key, keylen), Slice(val, vallen)));
}
void rocksdb_sstfilewriter_delete(rocksdb_sstfilewriter_t* writer,
const char* key, size_t keylen,
char** errptr) {
SaveError(errptr, writer->rep->Delete(Slice(key, keylen)));
}
void rocksdb_sstfilewriter_finish(rocksdb_sstfilewriter_t* writer,
char** errptr) {
SaveError(errptr, writer->rep->Finish(nullptr));
}
void rocksdb_sstfilewriter_file_size(rocksdb_sstfilewriter_t* writer,
uint64_t* file_size) {
*file_size = writer->rep->FileSize();
}
void rocksdb_sstfilewriter_destroy(rocksdb_sstfilewriter_t* writer) {
delete writer->rep;
delete writer;
}
rocksdb_ingestexternalfileoptions_t*
rocksdb_ingestexternalfileoptions_create() {
rocksdb_ingestexternalfileoptions_t* opt =
new rocksdb_ingestexternalfileoptions_t;
return opt;
}
void rocksdb_ingestexternalfileoptions_set_move_files(
rocksdb_ingestexternalfileoptions_t* opt, unsigned char move_files) {
opt->rep.move_files = move_files;
}
void rocksdb_ingestexternalfileoptions_set_snapshot_consistency(
rocksdb_ingestexternalfileoptions_t* opt,
unsigned char snapshot_consistency) {
opt->rep.snapshot_consistency = snapshot_consistency;
}
void rocksdb_ingestexternalfileoptions_set_allow_global_seqno(
rocksdb_ingestexternalfileoptions_t* opt,
unsigned char allow_global_seqno) {
opt->rep.allow_global_seqno = allow_global_seqno;
}
void rocksdb_ingestexternalfileoptions_set_allow_blocking_flush(
rocksdb_ingestexternalfileoptions_t* opt,
unsigned char allow_blocking_flush) {
opt->rep.allow_blocking_flush = allow_blocking_flush;
}
void rocksdb_ingestexternalfileoptions_set_ingest_behind(
rocksdb_ingestexternalfileoptions_t* opt,
unsigned char ingest_behind) {
opt->rep.ingest_behind = ingest_behind;
}
void rocksdb_ingestexternalfileoptions_destroy(
rocksdb_ingestexternalfileoptions_t* opt) {
delete opt;
}
void rocksdb_ingest_external_file(
rocksdb_t* db, const char* const* file_list, const size_t list_len,
const rocksdb_ingestexternalfileoptions_t* opt, char** errptr) {
std::vector<std::string> files(list_len);
for (size_t i = 0; i < list_len; ++i) {
files[i] = std::string(file_list[i]);
}
SaveError(errptr, db->rep->IngestExternalFile(files, opt->rep));
}
void rocksdb_ingest_external_file_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* handle,
const char* const* file_list, const size_t list_len,
const rocksdb_ingestexternalfileoptions_t* opt, char** errptr) {
std::vector<std::string> files(list_len);
for (size_t i = 0; i < list_len; ++i) {
files[i] = std::string(file_list[i]);
}
SaveError(errptr, db->rep->IngestExternalFile(handle->rep, files, opt->rep));
}
void rocksdb_try_catch_up_with_primary(rocksdb_t* db, char** errptr) {
SaveError(errptr, db->rep->TryCatchUpWithPrimary());
}
rocksdb_slicetransform_t* rocksdb_slicetransform_create(
void* state,
void (*destructor)(void*),
char* (*transform)(
void*,
const char* key, size_t length,
size_t* dst_length),
unsigned char (*in_domain)(
void*,
const char* key, size_t length),
unsigned char (*in_range)(
void*,
const char* key, size_t length),
const char* (*name)(void*)) {
rocksdb_slicetransform_t* result = new rocksdb_slicetransform_t;
result->state_ = state;
result->destructor_ = destructor;
result->transform_ = transform;
result->in_domain_ = in_domain;
result->in_range_ = in_range;
result->name_ = name;
return result;
}
void rocksdb_slicetransform_destroy(rocksdb_slicetransform_t* st) {
delete st;
}
struct Wrapper : public rocksdb_slicetransform_t {
const SliceTransform* rep_;
~Wrapper() override { delete rep_; }
const char* Name() const override { return rep_->Name(); }
Slice Transform(const Slice& src) const override {
return rep_->Transform(src);
}
bool InDomain(const Slice& src) const override {
return rep_->InDomain(src);
}
bool InRange(const Slice& src) const override { return rep_->InRange(src); }
static void DoNothing(void*) { }
};
rocksdb_slicetransform_t* rocksdb_slicetransform_create_fixed_prefix(size_t prefixLen) {
Wrapper* wrapper = new Wrapper;
wrapper->rep_ = rocksdb::NewFixedPrefixTransform(prefixLen);
wrapper->state_ = nullptr;
wrapper->destructor_ = &Wrapper::DoNothing;
return wrapper;
}
rocksdb_slicetransform_t* rocksdb_slicetransform_create_noop() {
Wrapper* wrapper = new Wrapper;
wrapper->rep_ = rocksdb::NewNoopTransform();
wrapper->state_ = nullptr;
wrapper->destructor_ = &Wrapper::DoNothing;
return wrapper;
}
rocksdb_universal_compaction_options_t* rocksdb_universal_compaction_options_create() {
rocksdb_universal_compaction_options_t* result = new rocksdb_universal_compaction_options_t;
result->rep = new rocksdb::CompactionOptionsUniversal;
return result;
}
void rocksdb_universal_compaction_options_set_size_ratio(
rocksdb_universal_compaction_options_t* uco, int ratio) {
uco->rep->size_ratio = ratio;
}
void rocksdb_universal_compaction_options_set_min_merge_width(
rocksdb_universal_compaction_options_t* uco, int w) {
uco->rep->min_merge_width = w;
}
void rocksdb_universal_compaction_options_set_max_merge_width(
rocksdb_universal_compaction_options_t* uco, int w) {
uco->rep->max_merge_width = w;
}
void rocksdb_universal_compaction_options_set_max_size_amplification_percent(
rocksdb_universal_compaction_options_t* uco, int p) {
uco->rep->max_size_amplification_percent = p;
}
void rocksdb_universal_compaction_options_set_compression_size_percent(
rocksdb_universal_compaction_options_t* uco, int p) {
uco->rep->compression_size_percent = p;
}
void rocksdb_universal_compaction_options_set_stop_style(
rocksdb_universal_compaction_options_t* uco, int style) {
uco->rep->stop_style = static_cast<rocksdb::CompactionStopStyle>(style);
}
void rocksdb_universal_compaction_options_destroy(
rocksdb_universal_compaction_options_t* uco) {
delete uco->rep;
delete uco;
}
rocksdb_fifo_compaction_options_t* rocksdb_fifo_compaction_options_create() {
rocksdb_fifo_compaction_options_t* result = new rocksdb_fifo_compaction_options_t;
result->rep = CompactionOptionsFIFO();
return result;
}
void rocksdb_fifo_compaction_options_set_max_table_files_size(
rocksdb_fifo_compaction_options_t* fifo_opts, uint64_t size) {
fifo_opts->rep.max_table_files_size = size;
}
void rocksdb_fifo_compaction_options_destroy(
rocksdb_fifo_compaction_options_t* fifo_opts) {
delete fifo_opts;
}
void rocksdb_options_set_min_level_to_compress(rocksdb_options_t* opt, int level) {
if (level >= 0) {
assert(level <= opt->rep.num_levels);
opt->rep.compression_per_level.resize(opt->rep.num_levels);
for (int i = 0; i < level; i++) {
opt->rep.compression_per_level[i] = rocksdb::kNoCompression;
}
for (int i = level; i < opt->rep.num_levels; i++) {
opt->rep.compression_per_level[i] = opt->rep.compression;
}
}
}
int rocksdb_livefiles_count(
const rocksdb_livefiles_t* lf) {
return static_cast<int>(lf->rep.size());
}
const char* rocksdb_livefiles_name(
const rocksdb_livefiles_t* lf,
int index) {
return lf->rep[index].name.c_str();
}
int rocksdb_livefiles_level(
const rocksdb_livefiles_t* lf,
int index) {
return lf->rep[index].level;
}
size_t rocksdb_livefiles_size(
const rocksdb_livefiles_t* lf,
int index) {
return lf->rep[index].size;
}
const char* rocksdb_livefiles_smallestkey(
const rocksdb_livefiles_t* lf,
int index,
size_t* size) {
*size = lf->rep[index].smallestkey.size();
return lf->rep[index].smallestkey.data();
}
const char* rocksdb_livefiles_largestkey(
const rocksdb_livefiles_t* lf,
int index,
size_t* size) {
*size = lf->rep[index].largestkey.size();
return lf->rep[index].largestkey.data();
}
uint64_t rocksdb_livefiles_entries(
const rocksdb_livefiles_t* lf,
int index) {
return lf->rep[index].num_entries;
}
uint64_t rocksdb_livefiles_deletions(
const rocksdb_livefiles_t* lf,
int index) {
return lf->rep[index].num_deletions;
}
extern void rocksdb_livefiles_destroy(
const rocksdb_livefiles_t* lf) {
delete lf;
}
void rocksdb_get_options_from_string(const rocksdb_options_t* base_options,
const char* opts_str,
rocksdb_options_t* new_options,
char** errptr) {
SaveError(errptr,
GetOptionsFromString(base_options->rep, std::string(opts_str),
&new_options->rep));
}
void rocksdb_delete_file_in_range(rocksdb_t* db, const char* start_key,
size_t start_key_len, const char* limit_key,
size_t limit_key_len, char** errptr) {
Slice a, b;
SaveError(
errptr,
DeleteFilesInRange(
db->rep, db->rep->DefaultColumnFamily(),
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr)));
}
void rocksdb_delete_file_in_range_cf(
rocksdb_t* db, rocksdb_column_family_handle_t* column_family,
const char* start_key, size_t start_key_len, const char* limit_key,
size_t limit_key_len, char** errptr) {
Slice a, b;
SaveError(
errptr,
DeleteFilesInRange(
db->rep, column_family->rep,
(start_key ? (a = Slice(start_key, start_key_len), &a) : nullptr),
(limit_key ? (b = Slice(limit_key, limit_key_len), &b) : nullptr)));
}
rocksdb_transactiondb_options_t* rocksdb_transactiondb_options_create() {
return new rocksdb_transactiondb_options_t;
}
void rocksdb_transactiondb_options_destroy(rocksdb_transactiondb_options_t* opt){
delete opt;
}
void rocksdb_transactiondb_options_set_max_num_locks(
rocksdb_transactiondb_options_t* opt, int64_t max_num_locks) {
opt->rep.max_num_locks = max_num_locks;
}
void rocksdb_transactiondb_options_set_num_stripes(
rocksdb_transactiondb_options_t* opt, size_t num_stripes) {
opt->rep.num_stripes = num_stripes;
}
void rocksdb_transactiondb_options_set_transaction_lock_timeout(
rocksdb_transactiondb_options_t* opt, int64_t txn_lock_timeout) {
opt->rep.transaction_lock_timeout = txn_lock_timeout;
}
void rocksdb_transactiondb_options_set_default_lock_timeout(
rocksdb_transactiondb_options_t* opt, int64_t default_lock_timeout) {
opt->rep.default_lock_timeout = default_lock_timeout;
}
rocksdb_transaction_options_t* rocksdb_transaction_options_create() {
return new rocksdb_transaction_options_t;
}
void rocksdb_transaction_options_destroy(rocksdb_transaction_options_t* opt) {
delete opt;
}
void rocksdb_transaction_options_set_set_snapshot(
rocksdb_transaction_options_t* opt, unsigned char v) {
opt->rep.set_snapshot = v;
}
void rocksdb_transaction_options_set_deadlock_detect(
rocksdb_transaction_options_t* opt, unsigned char v) {
opt->rep.deadlock_detect = v;
}
void rocksdb_transaction_options_set_lock_timeout(
rocksdb_transaction_options_t* opt, int64_t lock_timeout) {
opt->rep.lock_timeout = lock_timeout;
}
void rocksdb_transaction_options_set_expiration(
rocksdb_transaction_options_t* opt, int64_t expiration) {
opt->rep.expiration = expiration;
}
void rocksdb_transaction_options_set_deadlock_detect_depth(
rocksdb_transaction_options_t* opt, int64_t depth) {
opt->rep.deadlock_detect_depth = depth;
}
void rocksdb_transaction_options_set_max_write_batch_size(
rocksdb_transaction_options_t* opt, size_t size) {
opt->rep.max_write_batch_size = size;
}
rocksdb_optimistictransaction_options_t*
rocksdb_optimistictransaction_options_create() {
return new rocksdb_optimistictransaction_options_t;
}
void rocksdb_optimistictransaction_options_destroy(
rocksdb_optimistictransaction_options_t* opt) {
delete opt;
}
void rocksdb_optimistictransaction_options_set_set_snapshot(
rocksdb_optimistictransaction_options_t* opt, unsigned char v) {
opt->rep.set_snapshot = v;
}
rocksdb_column_family_handle_t* rocksdb_transactiondb_create_column_family(
rocksdb_transactiondb_t* txn_db,
const rocksdb_options_t* column_family_options,
const char* column_family_name, char** errptr) {
rocksdb_column_family_handle_t* handle = new rocksdb_column_family_handle_t;
SaveError(errptr, txn_db->rep->CreateColumnFamily(
ColumnFamilyOptions(column_family_options->rep),
std::string(column_family_name), &(handle->rep)));
return handle;
}
rocksdb_transactiondb_t* rocksdb_transactiondb_open(
const rocksdb_options_t* options,
const rocksdb_transactiondb_options_t* txn_db_options, const char* name,
char** errptr) {
TransactionDB* txn_db;
if (SaveError(errptr, TransactionDB::Open(options->rep, txn_db_options->rep,
std::string(name), &txn_db))) {
return nullptr;
}
rocksdb_transactiondb_t* result = new rocksdb_transactiondb_t;
result->rep = txn_db;
return result;
}
rocksdb_transactiondb_t* rocksdb_transactiondb_open_column_families(
const rocksdb_options_t* options,
const rocksdb_transactiondb_options_t* txn_db_options, const char* name,
int num_column_families, const char** column_family_names,
const rocksdb_options_t** column_family_options,
rocksdb_column_family_handle_t** column_family_handles, char** errptr) {
std::vector<ColumnFamilyDescriptor> column_families;
for (int i = 0; i < num_column_families; i++) {
column_families.push_back(ColumnFamilyDescriptor(
std::string(column_family_names[i]),
ColumnFamilyOptions(column_family_options[i]->rep)));
}
TransactionDB* txn_db;
std::vector<ColumnFamilyHandle*> handles;
if (SaveError(errptr, TransactionDB::Open(options->rep, txn_db_options->rep,
std::string(name), column_families,
&handles, &txn_db))) {
return nullptr;
}
for (size_t i = 0; i < handles.size(); i++) {
rocksdb_column_family_handle_t* c_handle =
new rocksdb_column_family_handle_t;
c_handle->rep = handles[i];
column_family_handles[i] = c_handle;
}
rocksdb_transactiondb_t* result = new rocksdb_transactiondb_t;
result->rep = txn_db;
return result;
}
const rocksdb_snapshot_t* rocksdb_transactiondb_create_snapshot(
rocksdb_transactiondb_t* txn_db) {
rocksdb_snapshot_t* result = new rocksdb_snapshot_t;
result->rep = txn_db->rep->GetSnapshot();
return result;
}
void rocksdb_transactiondb_release_snapshot(
rocksdb_transactiondb_t* txn_db, const rocksdb_snapshot_t* snapshot) {
txn_db->rep->ReleaseSnapshot(snapshot->rep);
delete snapshot;
}
rocksdb_transaction_t* rocksdb_transaction_begin(
rocksdb_transactiondb_t* txn_db,
const rocksdb_writeoptions_t* write_options,
const rocksdb_transaction_options_t* txn_options,
rocksdb_transaction_t* old_txn) {
if (old_txn == nullptr) {
rocksdb_transaction_t* result = new rocksdb_transaction_t;
result->rep = txn_db->rep->BeginTransaction(write_options->rep,
txn_options->rep, nullptr);
return result;
}
old_txn->rep = txn_db->rep->BeginTransaction(write_options->rep,
txn_options->rep, old_txn->rep);
return old_txn;
}
void rocksdb_transaction_commit(rocksdb_transaction_t* txn, char** errptr) {
SaveError(errptr, txn->rep->Commit());
}
void rocksdb_transaction_rollback(rocksdb_transaction_t* txn, char** errptr) {
SaveError(errptr, txn->rep->Rollback());
}
void rocksdb_transaction_set_savepoint(rocksdb_transaction_t* txn) {
txn->rep->SetSavePoint();
}
void rocksdb_transaction_rollback_to_savepoint(rocksdb_transaction_t* txn, char** errptr) {
SaveError(errptr, txn->rep->RollbackToSavePoint());
}
void rocksdb_transaction_destroy(rocksdb_transaction_t* txn) {
delete txn->rep;
delete txn;
}
const rocksdb_snapshot_t* rocksdb_transaction_get_snapshot(
rocksdb_transaction_t* txn) {
rocksdb_snapshot_t* result = new rocksdb_snapshot_t;
result->rep = txn->rep->GetSnapshot();
return result;
}
// Read a key inside a transaction
char* rocksdb_transaction_get(rocksdb_transaction_t* txn,
const rocksdb_readoptions_t* options,
const char* key, size_t klen, size_t* vlen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = txn->rep->Get(options->rep, Slice(key, klen), &tmp);
if (s.ok()) {
*vlen = tmp.size();
result = CopyString(tmp);
} else {
*vlen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_transaction_get_cf(rocksdb_transaction_t* txn,
const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, size_t* vlen,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s =
txn->rep->Get(options->rep, column_family->rep, Slice(key, klen), &tmp);
if (s.ok()) {
*vlen = tmp.size();
result = CopyString(tmp);
} else {
*vlen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
// Read a key inside a transaction
char* rocksdb_transaction_get_for_update(rocksdb_transaction_t* txn,
const rocksdb_readoptions_t* options,
const char* key, size_t klen,
size_t* vlen, unsigned char exclusive,
char** errptr) {
char* result = nullptr;
std::string tmp;
Status s =
txn->rep->GetForUpdate(options->rep, Slice(key, klen), &tmp, exclusive);
if (s.ok()) {
*vlen = tmp.size();
result = CopyString(tmp);
} else {
*vlen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_transaction_get_for_update_cf(
rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key, size_t klen,
size_t* vlen, unsigned char exclusive, char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = txn->rep->GetForUpdate(options->rep, column_family->rep,
Slice(key, klen), &tmp, exclusive);
if (s.ok()) {
*vlen = tmp.size();
result = CopyString(tmp);
} else {
*vlen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
// Read a key outside a transaction
char* rocksdb_transactiondb_get(
rocksdb_transactiondb_t* txn_db,
const rocksdb_readoptions_t* options,
const char* key, size_t klen,
size_t* vlen,
char** errptr){
char* result = nullptr;
std::string tmp;
Status s = txn_db->rep->Get(options->rep, Slice(key, klen), &tmp);
if (s.ok()) {
*vlen = tmp.size();
result = CopyString(tmp);
} else {
*vlen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
char* rocksdb_transactiondb_get_cf(
rocksdb_transactiondb_t* txn_db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, size_t* vallen, char** errptr) {
char* result = nullptr;
std::string tmp;
Status s = txn_db->rep->Get(options->rep, column_family->rep,
Slice(key, keylen), &tmp);
if (s.ok()) {
*vallen = tmp.size();
result = CopyString(tmp);
} else {
*vallen = 0;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
}
return result;
}
// Put a key inside a transaction
void rocksdb_transaction_put(rocksdb_transaction_t* txn, const char* key,
size_t klen, const char* val, size_t vlen,
char** errptr) {
SaveError(errptr, txn->rep->Put(Slice(key, klen), Slice(val, vlen)));
}
void rocksdb_transaction_put_cf(rocksdb_transaction_t* txn,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, const char* val,
size_t vlen, char** errptr) {
SaveError(errptr, txn->rep->Put(column_family->rep, Slice(key, klen),
Slice(val, vlen)));
}
// Put a key outside a transaction
void rocksdb_transactiondb_put(rocksdb_transactiondb_t* txn_db,
const rocksdb_writeoptions_t* options,
const char* key, size_t klen, const char* val,
size_t vlen, char** errptr) {
SaveError(errptr,
txn_db->rep->Put(options->rep, Slice(key, klen), Slice(val, vlen)));
}
void rocksdb_transactiondb_put_cf(rocksdb_transactiondb_t* txn_db,
const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t keylen,
const char* val, size_t vallen,
char** errptr) {
SaveError(errptr, txn_db->rep->Put(options->rep, column_family->rep,
Slice(key, keylen), Slice(val, vallen)));
}
// Write batch into transaction db
void rocksdb_transactiondb_write(
rocksdb_transactiondb_t* db,
const rocksdb_writeoptions_t* options,
rocksdb_writebatch_t* batch,
char** errptr) {
SaveError(errptr, db->rep->Write(options->rep, &batch->rep));
}
// Merge a key inside a transaction
void rocksdb_transaction_merge(rocksdb_transaction_t* txn, const char* key,
size_t klen, const char* val, size_t vlen,
char** errptr) {
SaveError(errptr, txn->rep->Merge(Slice(key, klen), Slice(val, vlen)));
}
void rocksdb_transaction_merge_cf(rocksdb_transaction_t* txn,
rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, const char* val,
size_t vlen, char** errptr) {
SaveError(errptr, txn->rep->Merge(column_family->rep, Slice(key, klen),
Slice(val, vlen)));
}
// Merge a key outside a transaction
void rocksdb_transactiondb_merge(rocksdb_transactiondb_t* txn_db,
const rocksdb_writeoptions_t* options,
const char* key, size_t klen, const char* val,
size_t vlen, char** errptr) {
SaveError(errptr, txn_db->rep->Merge(options->rep, Slice(key, klen),
Slice(val, vlen)));
}
void rocksdb_transactiondb_merge_cf(
rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key, size_t klen,
const char* val, size_t vlen, char** errptr) {
SaveError(errptr, txn_db->rep->Merge(options->rep, column_family->rep,
Slice(key, klen), Slice(val, vlen)));
}
// Delete a key inside a transaction
void rocksdb_transaction_delete(rocksdb_transaction_t* txn, const char* key,
size_t klen, char** errptr) {
SaveError(errptr, txn->rep->Delete(Slice(key, klen)));
}
void rocksdb_transaction_delete_cf(
rocksdb_transaction_t* txn, rocksdb_column_family_handle_t* column_family,
const char* key, size_t klen, char** errptr) {
SaveError(errptr, txn->rep->Delete(column_family->rep, Slice(key, klen)));
}
// Delete a key outside a transaction
void rocksdb_transactiondb_delete(rocksdb_transactiondb_t* txn_db,
const rocksdb_writeoptions_t* options,
const char* key, size_t klen, char** errptr) {
SaveError(errptr, txn_db->rep->Delete(options->rep, Slice(key, klen)));
}
void rocksdb_transactiondb_delete_cf(
rocksdb_transactiondb_t* txn_db, const rocksdb_writeoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, char** errptr) {
SaveError(errptr, txn_db->rep->Delete(options->rep, column_family->rep,
Slice(key, keylen)));
}
// Create an iterator inside a transaction
rocksdb_iterator_t* rocksdb_transaction_create_iterator(
rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = txn->rep->GetIterator(options->rep);
return result;
}
// Create an iterator inside a transaction with column family
rocksdb_iterator_t* rocksdb_transaction_create_iterator_cf(
rocksdb_transaction_t* txn, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = txn->rep->GetIterator(options->rep, column_family->rep);
return result;
}
// Create an iterator outside a transaction
rocksdb_iterator_t* rocksdb_transactiondb_create_iterator(
rocksdb_transactiondb_t* txn_db, const rocksdb_readoptions_t* options) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = txn_db->rep->NewIterator(options->rep);
return result;
}
rocksdb_iterator_t* rocksdb_transactiondb_create_iterator_cf(
rocksdb_transactiondb_t* txn_db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family) {
rocksdb_iterator_t* result = new rocksdb_iterator_t;
result->rep = txn_db->rep->NewIterator(options->rep, column_family->rep);
return result;
}
void rocksdb_transactiondb_close(rocksdb_transactiondb_t* txn_db) {
delete txn_db->rep;
delete txn_db;
}
rocksdb_checkpoint_t* rocksdb_transactiondb_checkpoint_object_create(
rocksdb_transactiondb_t* txn_db, char** errptr) {
Checkpoint* checkpoint;
if (SaveError(errptr, Checkpoint::Create(txn_db->rep, &checkpoint))) {
return nullptr;
}
rocksdb_checkpoint_t* result = new rocksdb_checkpoint_t;
result->rep = checkpoint;
return result;
}
rocksdb_optimistictransactiondb_t* rocksdb_optimistictransactiondb_open(
const rocksdb_options_t* options, const char* name, char** errptr) {
OptimisticTransactionDB* otxn_db;
if (SaveError(errptr, OptimisticTransactionDB::Open(
options->rep, std::string(name), &otxn_db))) {
return nullptr;
}
rocksdb_optimistictransactiondb_t* result =
new rocksdb_optimistictransactiondb_t;
result->rep = otxn_db;
return result;
}
rocksdb_optimistictransactiondb_t*
rocksdb_optimistictransactiondb_open_column_families(
const rocksdb_options_t* db_options, const char* name,
int num_column_families, const char** column_family_names,
const rocksdb_options_t** column_family_options,
rocksdb_column_family_handle_t** column_family_handles, char** errptr) {
std::vector<ColumnFamilyDescriptor> column_families;
for (int i = 0; i < num_column_families; i++) {
column_families.push_back(ColumnFamilyDescriptor(
std::string(column_family_names[i]),
ColumnFamilyOptions(column_family_options[i]->rep)));
}
OptimisticTransactionDB* otxn_db;
std::vector<ColumnFamilyHandle*> handles;
if (SaveError(errptr, OptimisticTransactionDB::Open(
DBOptions(db_options->rep), std::string(name),
column_families, &handles, &otxn_db))) {
return nullptr;
}
for (size_t i = 0; i < handles.size(); i++) {
rocksdb_column_family_handle_t* c_handle =
new rocksdb_column_family_handle_t;
c_handle->rep = handles[i];
column_family_handles[i] = c_handle;
}
rocksdb_optimistictransactiondb_t* result =
new rocksdb_optimistictransactiondb_t;
result->rep = otxn_db;
return result;
}
rocksdb_t* rocksdb_optimistictransactiondb_get_base_db(
rocksdb_optimistictransactiondb_t* otxn_db) {
DB* base_db = otxn_db->rep->GetBaseDB();
if (base_db != nullptr) {
rocksdb_t* result = new rocksdb_t;
result->rep = base_db;
return result;
}
return nullptr;
}
void rocksdb_optimistictransactiondb_close_base_db(rocksdb_t* base_db) {
delete base_db;
}
rocksdb_transaction_t* rocksdb_optimistictransaction_begin(
rocksdb_optimistictransactiondb_t* otxn_db,
const rocksdb_writeoptions_t* write_options,
const rocksdb_optimistictransaction_options_t* otxn_options,
rocksdb_transaction_t* old_txn) {
if (old_txn == nullptr) {
rocksdb_transaction_t* result = new rocksdb_transaction_t;
result->rep = otxn_db->rep->BeginTransaction(write_options->rep,
otxn_options->rep, nullptr);
return result;
}
old_txn->rep = otxn_db->rep->BeginTransaction(
write_options->rep, otxn_options->rep, old_txn->rep);
return old_txn;
}
void rocksdb_optimistictransactiondb_close(
rocksdb_optimistictransactiondb_t* otxn_db) {
delete otxn_db->rep;
delete otxn_db;
}
void rocksdb_free(void* ptr) { free(ptr); }
rocksdb_pinnableslice_t* rocksdb_get_pinned(
rocksdb_t* db, const rocksdb_readoptions_t* options, const char* key,
size_t keylen, char** errptr) {
rocksdb_pinnableslice_t* v = new (rocksdb_pinnableslice_t);
Status s = db->rep->Get(options->rep, db->rep->DefaultColumnFamily(),
Slice(key, keylen), &v->rep);
if (!s.ok()) {
delete (v);
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
return nullptr;
}
return v;
}
rocksdb_pinnableslice_t* rocksdb_get_pinned_cf(
rocksdb_t* db, const rocksdb_readoptions_t* options,
rocksdb_column_family_handle_t* column_family, const char* key,
size_t keylen, char** errptr) {
rocksdb_pinnableslice_t* v = new (rocksdb_pinnableslice_t);
Status s = db->rep->Get(options->rep, column_family->rep, Slice(key, keylen),
&v->rep);
if (!s.ok()) {
delete v;
if (!s.IsNotFound()) {
SaveError(errptr, s);
}
return nullptr;
}
return v;
}
void rocksdb_pinnableslice_destroy(rocksdb_pinnableslice_t* v) { delete v; }
const char* rocksdb_pinnableslice_value(const rocksdb_pinnableslice_t* v,
size_t* vlen) {
if (!v) {
*vlen = 0;
return nullptr;
}
*vlen = v->rep.size();
return v->rep.data();
}
// container to keep databases and caches in order to use rocksdb::MemoryUtil
struct rocksdb_memory_consumers_t {
std::vector<rocksdb_t*> dbs;
std::unordered_set<rocksdb_cache_t*> caches;
};
// initializes new container of memory consumers
rocksdb_memory_consumers_t* rocksdb_memory_consumers_create() {
return new rocksdb_memory_consumers_t;
}
// adds datatabase to the container of memory consumers
void rocksdb_memory_consumers_add_db(rocksdb_memory_consumers_t* consumers,
rocksdb_t* db) {
consumers->dbs.push_back(db);
}
// adds cache to the container of memory consumers
void rocksdb_memory_consumers_add_cache(rocksdb_memory_consumers_t* consumers,
rocksdb_cache_t* cache) {
consumers->caches.insert(cache);
}
// deletes container with memory consumers
void rocksdb_memory_consumers_destroy(rocksdb_memory_consumers_t* consumers) {
delete consumers;
}
// contains memory usage statistics provided by rocksdb::MemoryUtil
struct rocksdb_memory_usage_t {
uint64_t mem_table_total;
uint64_t mem_table_unflushed;
uint64_t mem_table_readers_total;
uint64_t cache_total;
};
// estimates amount of memory occupied by consumers (dbs and caches)
rocksdb_memory_usage_t* rocksdb_approximate_memory_usage_create(
rocksdb_memory_consumers_t* consumers, char** errptr) {
vector<DB*> dbs;
for (auto db : consumers->dbs) {
dbs.push_back(db->rep);
}
unordered_set<const Cache*> cache_set;
for (auto cache : consumers->caches) {
cache_set.insert(const_cast<const Cache*>(cache->rep.get()));
}
std::map<rocksdb::MemoryUtil::UsageType, uint64_t> usage_by_type;
auto status = MemoryUtil::GetApproximateMemoryUsageByType(dbs, cache_set,
&usage_by_type);
if (SaveError(errptr, status)) {
return nullptr;
}
auto result = new rocksdb_memory_usage_t;
result->mem_table_total = usage_by_type[MemoryUtil::kMemTableTotal];
result->mem_table_unflushed = usage_by_type[MemoryUtil::kMemTableUnFlushed];
result->mem_table_readers_total = usage_by_type[MemoryUtil::kTableReadersTotal];
result->cache_total = usage_by_type[MemoryUtil::kCacheTotal];
return result;
}
uint64_t rocksdb_approximate_memory_usage_get_mem_table_total(
rocksdb_memory_usage_t* memory_usage) {
return memory_usage->mem_table_total;
}
uint64_t rocksdb_approximate_memory_usage_get_mem_table_unflushed(
rocksdb_memory_usage_t* memory_usage) {
return memory_usage->mem_table_unflushed;
}
uint64_t rocksdb_approximate_memory_usage_get_mem_table_readers_total(
rocksdb_memory_usage_t* memory_usage) {
return memory_usage->mem_table_readers_total;
}
uint64_t rocksdb_approximate_memory_usage_get_cache_total(
rocksdb_memory_usage_t* memory_usage) {
return memory_usage->cache_total;
}
// deletes container with memory usage estimates
void rocksdb_approximate_memory_usage_destroy(rocksdb_memory_usage_t* usage) {
delete usage;
}
} // end extern "C"
#endif // !ROCKSDB_LITE