83 lines
2.8 KiB
C++
83 lines
2.8 KiB
C++
/*
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* BlobGranuleServerCommon.h
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if defined(NO_INTELLISENSE) && !defined(FDBSERVER_BLOBGRANULESERVERCOMMON_ACTOR_G_H)
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#define FDBSERVER_BLOBGRANULESERVERCOMMON_ACTOR_G_H
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#include "fdbserver/BlobGranuleServerCommon.actor.g.h"
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#elif !defined(FDBSERVER_BLOBGRANULESERVERCOMMON_ACTOR_H)
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#define FDBSERVER_BLOBGRANULESERVERCOMMON_ACTOR_H
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#pragma once
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#include "flow/flow.h"
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#include "fdbclient/CommitTransaction.h"
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#include "fdbclient/FDBTypes.h"
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#include "fdbclient/BlobGranuleCommon.h"
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#include "flow/actorcompiler.h" // has to be last include
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struct GranuleHistory {
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KeyRange range;
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Version version;
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Standalone<BlobGranuleHistoryValue> value;
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GranuleHistory() {}
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GranuleHistory(KeyRange range, Version version, Standalone<BlobGranuleHistoryValue> value)
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: range(range), version(version), value(value) {}
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};
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// Stores info about a file in blob storage
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struct BlobFileIndex {
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Version version;
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std::string filename;
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int64_t offset;
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int64_t length;
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int64_t fullFileLength;
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BlobFileIndex() {}
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BlobFileIndex(Version version, std::string filename, int64_t offset, int64_t length, int64_t fullFileLength)
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: version(version), filename(filename), offset(offset), length(length), fullFileLength(fullFileLength) {}
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// compare on version
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bool operator<(const BlobFileIndex& r) const { return version < r.version; }
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};
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// FIXME: initialize these to smaller default sizes to save a bit of memory, particularly snapshotFiles
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// Stores the files that comprise a blob granule
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struct GranuleFiles {
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std::vector<BlobFileIndex> snapshotFiles;
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std::vector<BlobFileIndex> deltaFiles;
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void getFiles(Version beginVersion,
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Version readVersion,
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bool canCollapse,
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BlobGranuleChunkRef& chunk,
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Arena& replyArena,
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int64_t& deltaBytesCounter) const;
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};
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class Transaction;
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ACTOR Future<Optional<GranuleHistory>> getLatestGranuleHistory(Transaction* tr, KeyRange range);
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ACTOR Future<Void> readGranuleFiles(Transaction* tr, Key* startKey, Key endKey, GranuleFiles* files, UID granuleID);
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ACTOR Future<GranuleFiles> loadHistoryFiles(Database cx, UID granuleID);
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#endif
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