134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
/*
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* ResolverInterface.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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#ifndef FDBSERVER_RESOLVERINTERFACE_H
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#define FDBSERVER_RESOLVERINTERFACE_H
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#pragma once
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#include "fdbclient/FDBTypes.h"
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struct ResolverInterface {
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enum { LocationAwareLoadBalance = 1 };
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enum { AlwaysFresh = 1 };
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LocalityData locality;
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UID uniqueID;
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RequestStream< struct ResolveTransactionBatchRequest > resolve;
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RequestStream< struct ResolutionMetricsRequest > metrics;
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RequestStream< struct ResolutionSplitRequest > split;
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RequestStream<ReplyPromise<Void>> waitFailure;
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ResolverInterface() : uniqueID( g_random->randomUniqueID() ) {}
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UID id() const { return uniqueID; }
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std::string toString() const { return id().shortString(); }
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bool operator == ( ResolverInterface const& r ) const { return id() == r.id(); }
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bool operator != ( ResolverInterface const& r ) const { return id() != r.id(); }
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NetworkAddress address() const { return resolve.getEndpoint().address; }
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void initEndpoints() {
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metrics.getEndpoint( TaskResolutionMetrics );
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split.getEndpoint( TaskResolutionMetrics );
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}
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template <class Ar>
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void serialize( Ar& ar ) {
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ar & uniqueID & locality & resolve & metrics & split & waitFailure;
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}
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};
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struct StateTransactionRef {
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StateTransactionRef() {}
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StateTransactionRef(const bool committed, VectorRef<MutationRef> const& mutations) : committed(committed), mutations(mutations) {}
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StateTransactionRef(Arena &p, const StateTransactionRef &toCopy) : committed(toCopy.committed), mutations(p, toCopy.mutations) {}
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bool committed;
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VectorRef<MutationRef> mutations;
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size_t expectedSize() const {
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return mutations.expectedSize();
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}
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template <class Archive>
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void serialize(Archive& ar) {
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ar & committed & mutations;
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}
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};
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struct ResolveTransactionBatchReply {
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Arena arena;
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VectorRef<uint8_t> committed;
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Optional<UID> debugID;
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VectorRef<VectorRef<StateTransactionRef>> stateMutations; // [version][transaction#] -> (committed, [mutation#])
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template <class Archive>
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void serialize(Archive& ar) {
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ar & committed & stateMutations & arena & debugID;
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}
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};
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struct ResolveTransactionBatchRequest {
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Arena arena;
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Version prevVersion;
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Version version; // FIXME: ?
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Version lastReceivedVersion;
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VectorRef<CommitTransactionRef> transactions;
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VectorRef<int> txnStateTransactions; // Offsets of elements of transactions that have (transaction subsystem state) mutations
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ReplyPromise<ResolveTransactionBatchReply> reply;
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Optional<UID> debugID;
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template <class Archive>
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void serialize(Archive& ar) {
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ar & prevVersion & version & lastReceivedVersion & transactions & txnStateTransactions & reply & arena & debugID;
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}
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};
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struct ResolutionMetricsRequest {
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ReplyPromise<int64_t> reply;
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template <class Archive>
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void serialize(Archive& ar) {
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ar & reply;
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}
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};
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struct ResolutionSplitReply {
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Key key;
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int64_t used;
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template <class Archive>
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void serialize(Archive& ar) {
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ar & key & used;
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}
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};
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struct ResolutionSplitRequest {
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KeyRange range;
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int64_t offset;
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bool front;
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ReplyPromise<ResolutionSplitReply> reply;
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template <class Archive>
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void serialize(Archive& ar) {
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ar & range & offset & front & reply;
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}
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};
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#endif
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