mirror of
https://github.com/facebook/rocksdb.git
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f6e404c20a
Summary: A couple of notes from the diff: - The namespace block I added at the top of table_properties_collector.cc was in reaction to an issue i was having with PutVarint64 and reusing the "val" string. I'm not sure this is the cleanest way of doing this, but abstracting this out at least results in the correct behavior. - I chose "rocksdb.merge.operands" as the property name. I am open to suggestions for better names. - The change to sst_dump_tool.cc seems a bit inelegant to me. Is there a better way to do the if-else block? Test Plan: I added a test case in table_properties_collector_test.cc. It adds two merge operands and checks to make sure that both of them are reflected by GetMergeOperands. It also checks to make sure the wasPropertyPresent bool is properly set in the method. Running both of these tests should pass: ./table_properties_collector_test ./sst_dump_test Reviewers: IslamAbdelRahman Reviewed By: IslamAbdelRahman Subscribers: andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D58119
135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#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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EntryType GetEntryType(ValueType value_type) {
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switch (value_type) {
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case kTypeValue:
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return kEntryPut;
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case kTypeDeletion:
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return kEntryDelete;
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case kTypeSingleDeletion:
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return kEntrySingleDelete;
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case kTypeMerge:
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return kEntryMerge;
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default:
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return kEntryOther;
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}
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}
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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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