mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 16:30:56 +00:00
4e7a182d09
Summary: - removed a few unneeded variables - fused some variable declarations and their assignments - fixed right-trimming code in string_util.cc to not underflow - simplifed an assertion - move non-nullptr check assertion before dereferencing of that pointer - pass an std::string function parameter by const reference instead of by value (avoiding potential copy) Closes https://github.com/facebook/rocksdb/pull/3507 Differential Revision: D7004679 Pulled By: sagar0 fbshipit-source-id: 52944952d9b56dfcac3bea3cd7878e315bb563c4
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "db/table_properties_collector.h"
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#include "db/dbformat.h"
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#include "util/coding.h"
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#include "util/string_util.h"
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namespace rocksdb {
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Status InternalKeyPropertiesCollector::InternalAdd(const Slice& key,
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const Slice& value,
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uint64_t file_size) {
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ParsedInternalKey ikey;
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if (!ParseInternalKey(key, &ikey)) {
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return Status::InvalidArgument("Invalid internal key");
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}
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// Note: We count both, deletions and single deletions here.
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if (ikey.type == ValueType::kTypeDeletion ||
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ikey.type == ValueType::kTypeSingleDeletion) {
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++deleted_keys_;
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} else if (ikey.type == ValueType::kTypeMerge) {
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++merge_operands_;
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}
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return Status::OK();
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}
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Status InternalKeyPropertiesCollector::Finish(
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UserCollectedProperties* properties) {
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assert(properties);
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assert(properties->find(
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InternalKeyTablePropertiesNames::kDeletedKeys) == properties->end());
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assert(properties->find(InternalKeyTablePropertiesNames::kMergeOperands) ==
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properties->end());
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std::string val_deleted_keys;
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PutVarint64(&val_deleted_keys, deleted_keys_);
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properties->insert(
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{InternalKeyTablePropertiesNames::kDeletedKeys, val_deleted_keys});
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std::string val_merge_operands;
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PutVarint64(&val_merge_operands, merge_operands_);
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properties->insert(
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{InternalKeyTablePropertiesNames::kMergeOperands, val_merge_operands});
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return Status::OK();
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}
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UserCollectedProperties
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InternalKeyPropertiesCollector::GetReadableProperties() const {
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return {{"kDeletedKeys", ToString(deleted_keys_)},
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{"kMergeOperands", ToString(merge_operands_)}};
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}
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namespace {
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uint64_t GetUint64Property(const UserCollectedProperties& props,
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const std::string& property_name,
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bool* property_present) {
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auto pos = props.find(property_name);
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if (pos == props.end()) {
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*property_present = false;
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return 0;
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}
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Slice raw = pos->second;
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uint64_t val = 0;
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*property_present = true;
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return GetVarint64(&raw, &val) ? val : 0;
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}
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} // namespace
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Status UserKeyTablePropertiesCollector::InternalAdd(const Slice& key,
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const Slice& value,
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uint64_t file_size) {
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ParsedInternalKey ikey;
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if (!ParseInternalKey(key, &ikey)) {
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return Status::InvalidArgument("Invalid internal key");
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}
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return collector_->AddUserKey(ikey.user_key, value, GetEntryType(ikey.type),
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ikey.sequence, file_size);
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}
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Status UserKeyTablePropertiesCollector::Finish(
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UserCollectedProperties* properties) {
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return collector_->Finish(properties);
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}
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UserCollectedProperties
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UserKeyTablePropertiesCollector::GetReadableProperties() const {
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return collector_->GetReadableProperties();
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}
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const std::string InternalKeyTablePropertiesNames::kDeletedKeys
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= "rocksdb.deleted.keys";
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const std::string InternalKeyTablePropertiesNames::kMergeOperands =
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"rocksdb.merge.operands";
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uint64_t GetDeletedKeys(
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const UserCollectedProperties& props) {
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bool property_present_ignored;
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return GetUint64Property(props, InternalKeyTablePropertiesNames::kDeletedKeys,
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&property_present_ignored);
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}
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uint64_t GetMergeOperands(const UserCollectedProperties& props,
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bool* property_present) {
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return GetUint64Property(
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props, InternalKeyTablePropertiesNames::kMergeOperands, property_present);
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}
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} // namespace rocksdb
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