140 lines
5.6 KiB
C++
140 lines
5.6 KiB
C++
/*
|
|
* ThreadSafeTransaction.h
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef FDBCLIENT_THREADSAFETRANSACTION_H
|
|
#define FDBCLIENT_THREADSAFETRANSACTION_H
|
|
#pragma once
|
|
|
|
#include "fdbclient/ReadYourWrites.h"
|
|
#include "flow/ThreadHelper.actor.h"
|
|
#include "fdbclient/ClusterInterface.h"
|
|
#include "fdbclient/IClientApi.h"
|
|
|
|
class ThreadSafeDatabase : public IDatabase, public ThreadSafeReferenceCounted<ThreadSafeDatabase> {
|
|
public:
|
|
~ThreadSafeDatabase();
|
|
static ThreadFuture<Reference<IDatabase>> createFromExistingDatabase(Database cx);
|
|
|
|
Reference<ITransaction> createTransaction();
|
|
|
|
void setOption( FDBDatabaseOptions::Option option, Optional<StringRef> value = Optional<StringRef>() );
|
|
|
|
ThreadFuture<Void> onConnected(); // Returns after a majority of coordination servers are available and have reported a leader. The cluster file therefore is valid, but the database might be unavailable.
|
|
|
|
void addref() { ThreadSafeReferenceCounted<ThreadSafeDatabase>::addref(); }
|
|
void delref() { ThreadSafeReferenceCounted<ThreadSafeDatabase>::delref(); }
|
|
|
|
private:
|
|
friend class ThreadSafeTransaction;
|
|
DatabaseContext* db;
|
|
public: // Internal use only
|
|
ThreadSafeDatabase( std::string connFilename, int apiVersion );
|
|
ThreadSafeDatabase( DatabaseContext* db ) : db(db) {}
|
|
DatabaseContext* unsafeGetPtr() const { return db; }
|
|
};
|
|
|
|
class ThreadSafeTransaction : public ITransaction, ThreadSafeReferenceCounted<ThreadSafeTransaction>, NonCopyable {
|
|
public:
|
|
explicit ThreadSafeTransaction(DatabaseContext* cx);
|
|
~ThreadSafeTransaction();
|
|
|
|
void cancel() override;
|
|
void setVersion( Version v ) override;
|
|
ThreadFuture<Version> getReadVersion() override;
|
|
|
|
ThreadFuture< Optional<Value> > get( const KeyRef& key, bool snapshot = false ) override;
|
|
ThreadFuture< Key > getKey( const KeySelectorRef& key, bool snapshot = false ) override;
|
|
ThreadFuture< Standalone<RangeResultRef> > getRange( const KeySelectorRef& begin, const KeySelectorRef& end, int limit, bool snapshot = false, bool reverse = false ) override;
|
|
ThreadFuture< Standalone<RangeResultRef> > getRange( const KeySelectorRef& begin, const KeySelectorRef& end, GetRangeLimits limits, bool snapshot = false, bool reverse = false ) override;
|
|
ThreadFuture< Standalone<RangeResultRef> > getRange( const KeyRangeRef& keys, int limit, bool snapshot = false, bool reverse = false ) override {
|
|
return getRange( firstGreaterOrEqual(keys.begin), firstGreaterOrEqual(keys.end), limit, snapshot, reverse );
|
|
}
|
|
ThreadFuture< Standalone<RangeResultRef> > getRange( const KeyRangeRef& keys, GetRangeLimits limits, bool snapshot = false, bool reverse = false ) override {
|
|
return getRange( firstGreaterOrEqual(keys.begin), firstGreaterOrEqual(keys.end), limits, snapshot, reverse );
|
|
}
|
|
ThreadFuture<Standalone<VectorRef<const char*>>> getAddressesForKey(const KeyRef& key) override;
|
|
ThreadFuture<Standalone<StringRef>> getVersionstamp() override;
|
|
ThreadFuture<int64_t> getEstimatedRangeSizeBytes(const KeyRangeRef& keys) override;
|
|
|
|
void addReadConflictRange( const KeyRangeRef& keys ) override;
|
|
void makeSelfConflicting();
|
|
|
|
void atomicOp( const KeyRef& key, const ValueRef& value, uint32_t operationType ) override;
|
|
void set( const KeyRef& key, const ValueRef& value ) override;
|
|
void clear( const KeyRef& begin, const KeyRef& end) override;
|
|
void clear( const KeyRangeRef& range ) override;
|
|
void clear( const KeyRef& key ) override;
|
|
|
|
ThreadFuture< Void > watch( const KeyRef& key ) override;
|
|
|
|
void addWriteConflictRange( const KeyRangeRef& keys ) override;
|
|
|
|
ThreadFuture<Void> commit() override;
|
|
Version getCommittedVersion() override;
|
|
ThreadFuture<int64_t> getApproximateSize() override;
|
|
|
|
void setOption( FDBTransactionOptions::Option option, Optional<StringRef> value = Optional<StringRef>() ) override;
|
|
|
|
ThreadFuture<Void> checkDeferredError();
|
|
ThreadFuture<Void> onError( Error const& e ) override;
|
|
|
|
// These are to permit use as state variables in actors:
|
|
ThreadSafeTransaction() : tr(NULL) {}
|
|
void operator=(ThreadSafeTransaction&& r) BOOST_NOEXCEPT;
|
|
ThreadSafeTransaction(ThreadSafeTransaction&& r) BOOST_NOEXCEPT;
|
|
|
|
void reset() override;
|
|
|
|
void addref() override { ThreadSafeReferenceCounted<ThreadSafeTransaction>::addref(); }
|
|
void delref() override { ThreadSafeReferenceCounted<ThreadSafeTransaction>::delref(); }
|
|
|
|
private:
|
|
ReadYourWritesTransaction *tr;
|
|
};
|
|
|
|
class ThreadSafeApi : public IClientApi, ThreadSafeReferenceCounted<ThreadSafeApi> {
|
|
public:
|
|
void selectApiVersion(int apiVersion);
|
|
const char* getClientVersion();
|
|
|
|
void setNetworkOption(FDBNetworkOptions::Option option, Optional<StringRef> value = Optional<StringRef>());
|
|
void setupNetwork();
|
|
void runNetwork();
|
|
void stopNetwork();
|
|
|
|
Reference<IDatabase> createDatabase(const char *clusterFilePath);
|
|
|
|
void addNetworkThreadCompletionHook(void (*hook)(void*), void *hookParameter);
|
|
|
|
static IClientApi* api;
|
|
|
|
private:
|
|
ThreadSafeApi();
|
|
|
|
int apiVersion;
|
|
const std::string clientVersion;
|
|
uint64_t transportId;
|
|
|
|
Mutex lock;
|
|
std::vector<std::pair<void (*)(void*), void*>> threadCompletionHooks;
|
|
};
|
|
|
|
#endif
|