mirror of https://github.com/facebook/rocksdb.git
84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
// Copyright (c) 2013, 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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namespace rocksdb {
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Status InternalKeyPropertiesCollector::Add(
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const Slice& key, const Slice& value) {
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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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if (ikey.type == ValueType::kTypeDeletion) {
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++deleted_keys_;
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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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std::string val;
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PutVarint64(&val, deleted_keys_);
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properties->insert({ InternalKeyTablePropertiesNames::kDeletedKeys, val });
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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 {
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{ "kDeletedKeys", std::to_string(deleted_keys_) }
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};
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}
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Status UserKeyTablePropertiesCollector::Add(
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const Slice& key, const Slice& value) {
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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_->Add(ikey.user_key, value);
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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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uint64_t GetDeletedKeys(
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const UserCollectedProperties& props) {
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auto pos = props.find(InternalKeyTablePropertiesNames::kDeletedKeys);
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if (pos == props.end()) {
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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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return GetVarint64(&raw, &val) ? val : 0;
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}
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} // namespace rocksdb
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