John Colvin
fc1ae2e5cb
WARNING: This is NOT an official release. As of 12/10/21 20:23, the latest release of the quickfix lib (1.15.1) does not support c++17 (the FIX::Application class has fns with dynamic exceptions). This commit upgrades to a more recent (unreleased) build which supports c++17.
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/* -*- C++ -*- */
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/****************************************************************************
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** Copyright (c) 2001-2014
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**
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** This file is part of the QuickFIX FIX Engine
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**
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** This file may be distributed under the terms of the quickfixengine.org
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** license as defined by quickfixengine.org and appearing in the file
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** LICENSE included in the packaging of this file.
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**
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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**
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** See http://www.quickfixengine.org/LICENSE for licensing information.
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**
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** Contact ask@quickfixengine.org if any conditions of this licensing are
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** not clear to you.
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**
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****************************************************************************/
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#ifndef FIX_FILESTORE_H
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#define FIX_FILESTORE_H
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#ifdef _MSC_VER
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#pragma warning( disable : 4503 4355 4786 4290 )
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#endif
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#include "MessageStore.h"
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#include "SessionSettings.h"
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#include <fstream>
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#include <string>
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namespace FIX
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{
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class Session;
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/// Creates a file based implementation of MessageStore.
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class FileStoreFactory : public MessageStoreFactory
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{
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public:
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FileStoreFactory( const SessionSettings& settings )
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: m_settings( settings ) {};
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FileStoreFactory( const std::string& path )
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: m_path( path ) {};
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MessageStore* create( const SessionID& );
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void destroy( MessageStore* );
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private:
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std::string m_path;
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SessionSettings m_settings;
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};
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/*! @} */
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/**
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* File based implementation of MessageStore.
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*
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* Four files are created by this implementation. One for storing outgoing
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* messages, one for indexing message locations, one for storing sequence numbers,
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* and one for storing the session creation time.
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*
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* The formats of the files are:<br>
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*
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* [path]+[BeginString]-[SenderCompID]-[TargetCompID].body<br>
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*
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* [path]+[BeginString]-[SenderCompID]-[TargetCompID].header<br>
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*
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* [path]+[BeginString]-[SenderCompID]-[TargetCompID].seqnums<br>
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*
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* [path]+[BeginString]-[SenderCompID]-[TargetCompID].session<br>
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*
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*
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* The messages file is a pure stream of %FIX messages.<br><br>
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* The sequence number file is in the format of<br>
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*
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* [SenderMsgSeqNum] : [TargetMsgSeqNum]<br><br>
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* The session file is a UTC timestamp in the format of<br>
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*
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* YYYYMMDD-HH:MM:SS
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*/
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class FileStore : public MessageStore
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{
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public:
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FileStore( std::string, const SessionID& s );
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virtual ~FileStore();
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bool set( int, const std::string& ) EXCEPT ( IOException );
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void get( int, int, std::vector < std::string > & ) const EXCEPT ( IOException );
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int getNextSenderMsgSeqNum() const EXCEPT ( IOException );
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int getNextTargetMsgSeqNum() const EXCEPT ( IOException );
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void setNextSenderMsgSeqNum( int value ) EXCEPT ( IOException );
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void setNextTargetMsgSeqNum( int value ) EXCEPT ( IOException );
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void incrNextSenderMsgSeqNum() EXCEPT ( IOException );
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void incrNextTargetMsgSeqNum() EXCEPT ( IOException );
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UtcTimeStamp getCreationTime() const EXCEPT ( IOException );
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void reset() EXCEPT ( IOException );
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void refresh() EXCEPT ( IOException );
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private:
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#ifdef _MSC_VER
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typedef std::pair < int, int > OffsetSize;
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#else
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typedef std::pair < long, std::size_t > OffsetSize;
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#endif
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typedef std::map < int, OffsetSize > NumToOffset;
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void open( bool deleteFile );
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void populateCache();
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bool readFromFile( int offset, int size, std::string& msg );
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void setSeqNum();
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void setSession();
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bool get( int, std::string& ) const EXCEPT ( IOException );
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MemoryStore m_cache;
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NumToOffset m_offsets;
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std::string m_msgFileName;
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std::string m_headerFileName;
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std::string m_seqNumsFileName;
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std::string m_sessionFileName;
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FILE* m_msgFile;
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FILE* m_headerFile;
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FILE* m_seqNumsFile;
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FILE* m_sessionFile;
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};
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}
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#endif //FIX_FILESTORE_H
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