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Commit bd5a1e4c authored by Steven Murray's avatar Steven Murray
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After lengthy discussions with tape operations it has been decided that the 

aggregator daemon be renamed to the tapebridge daemon.
parent 32b94701
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castor/tape/tapebridge/BoolFunctor.cpp 0 → 100644
View file @ bd5a1e4c
/******************************************************************************
* BoolFunctor.cpp
*
* This file is part of the Castor project.
* See http://castor.web.cern.ch/castor
*
* Copyright (C) 2003 CERN
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
*
*
* @author Nicola.Bessone@cern.ch Steven.Murray@cern.ch
*****************************************************************************/
#include "castor/tape/tapeserver/BoolFunctor.hpp"
//-----------------------------------------------------------------------------
// destructor
//-----------------------------------------------------------------------------
castor::tape::tapeserver::BoolFunctor::~BoolFunctor() throw() {
// Do nothing
}
castor/tape/tapebridge/BoolFunctor.hpp 0 → 100644
View file @ bd5a1e4c
/******************************************************************************
* castor/tape/tapeserver/BoolFunctor.hpp
*
* This file is part of the Castor project.
* See http://castor.web.cern.ch/castor
*
* Copyright (C) 2003 CERN
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
*
*
* @author Nicola.Bessone@cern.ch Steven.Murray@cern.ch
*****************************************************************************/
#ifndef _CASTOR_TAPE_TAPESERVER_BOOLFUNCTOR_HPP_
#define _CASTOR_TAPE_TAPESERVER_BOOLFUNCTOR_HPP_
namespace castor {
namespace tape {
namespace tapeserver {
/**
* Abstract class specifiying the interface to be followed by functors that
* take no parameters and return a boolean.
*/
class BoolFunctor {
public:
/**
* operator() which takes no parameters and returns a boolean.
*/
virtual bool operator()() = 0;
/**
* Virtual destructor.
*/
virtual ~BoolFunctor() throw();
}; // class BoolFunctor
} // namespace tapeserver
} // namespace tape
} // namespace castor
#endif // _CASTOR_TAPE_TAPESERVER_BOOLFUNCTOR_HPP_
castor/tape/tapebridge/BridgeProtocolEngine.cpp 0 → 100644
View file @ bd5a1e4c
This diff is collapsed.
castor/tape/tapebridge/BridgeProtocolEngine.hpp 0 → 100644
View file @ bd5a1e4c
/******************************************************************************
* castor/tape/tapeserver/BridgeProtocolEngine.hpp
*
* This file is part of the Castor project.
* See http://castor.web.cern.ch/castor
*
* Copyright (C) 2003 CERN
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
*
* @author Nicola.Bessone@cern.ch Steven.Murray@cern.ch
*****************************************************************************/
#ifndef CASTOR_TAPE_TAPESERVER_BRIDGEPROTOCOLENGINE
#define CASTOR_TAPE_TAPESERVER_BRIDGEPROTOCOLENGINE
#include "castor/exception/Exception.hpp"
#include "castor/tape/tapeserver/BoolFunctor.hpp"
#include "castor/tape/tapeserver/BridgeSocketCatalogue.hpp"
#include "castor/tape/tapeserver/Constants.hpp"
#include "castor/tape/tapeserver/Counter.hpp"
#include "castor/tape/legacymsg/CommonMarshal.hpp"
#include "castor/tape/legacymsg/RtcpMarshal.hpp"
#include "castor/tape/tapegateway/Volume.hpp"
#include "castor/tape/utils/IndexedContainer.hpp"
#include "castor/tape/utils/SmartFdList.hpp"
#include "h/Castor_limits.h"
#include "h/Cuuid.h"
#include <map>
namespace castor {
namespace tape {
namespace tapeserver {
/**
* Acts as a bridge between the tape gatway and rtcpd.
*/
class BridgeProtocolEngine {
public:
/**
* Constructor.
*
* @param cuuid The ccuid to be used for logging.
* @param listenSock The socket-descriptor of the listen socket
* to be used to accept callback connections
* from rtcpd.
* @param initialRtcpdSock The socket-descriptor of the initial rtcpd
* connection.
* @param jobRequest The RTCOPY job request from the VDQM.
* @param volume The volume message received from the
* client.
* @param nbFilesOnDestinationTape If migrating and the client is the tape
* gateway then this must be set to the
* current number of files on the tape, else
* this parameter is ignored.
* @param stoppingGracefully Functor that returns true if the daemon is
* stopping gracefully.
* @param tapeserverTransactionCounter The counter used to generate
* tapeserver transaction IDs. These are the
* IDS used in requests to the clients.
*/
BridgeProtocolEngine(
const Cuuid_t &cuuid,
const int rtcpdListenSock,
const int initialRtcpdSock,
const legacymsg::RtcpJobRqstMsgBody &jobRequest,
tapegateway::Volume &volume,
const uint32_t nbFilesOnDestinationTape,
BoolFunctor &stoppingGracefully,
Counter<uint64_t> &tapeserverTransactionCounter) throw();
/**
* Run a recall/migration session.
*/
void run() throw(castor::exception::Exception);
private:
/**
* The cuuid to be used for logging.
*/
const Cuuid_t &m_cuuid;
/**
* The catalogue of all the rtcpd and tapegateway connections used by the
* bridge protocol engine.
*
* The catalogue behaves like a smart pointer for the rtcpd disk/tape IO
* control-connections and the client connections in that its destructor will
* close them if they are still open.
*
* The catalogue will not close the listen socket used to accept rtcpd
* connections. This is the responsibility of the VdqmRequestHandler.
*
* The catalogue will not close the initial rtcpd connection. This is the
* responsibility of the VdqmRequestHandler.
*/
BridgeSocketCatalogue m_sockCatalogue;
/**
* The RTCOPY job request from the VDQM.
*/
const legacymsg::RtcpJobRqstMsgBody &m_jobRequest;
/**
* The volume message received from the client.
*/
tapegateway::Volume &m_volume;
/**
* If migrating and the client is the tape-gateway, then this is the next
* expected tape file sequence, else this member is ignored.
*/
uint32_t m_nextDestinationFseq;
/**
* Functor that returns true if the daemon is stopping gracefully.
*/
BoolFunctor &m_stoppingGracefully;
/**
* The counter used to generate the next tapeserver transaction ID to be used
* in a request to the client.
*/
Counter<uint64_t> &m_tapeserverTransactionCounter;
/**
* The number of received RTCP_ENDOF_REQ messages.
*/
uint32_t m_nbReceivedENDOF_REQs;
/**
* Pointer to an rtcpd message body handler function, where the handler
* function is a member of this class.
*
* @param header The header of the rtcpd request.
* @param socketFd The file descriptor of the socket from which the message
* should be read from.
* @param endOfSession Out parameter: Will be set to true by this function
* if the end of the recall/migration session has been reached.
*/
typedef void (BridgeProtocolEngine::*RtcpdMsgBodyCallback)(
const legacymsg::MessageHeader &header, const int socketFd,
bool &endOfSession);
/**
* Datatype for the map of magic+reqType to rtcpd message-body handler.
*/
typedef std::map<uint64_t, RtcpdMsgBodyCallback> RtcpdCallbackMap;
/**
* Map of magic+reqType to rtcpd message-body handler.
*/
RtcpdCallbackMap m_rtcpdHandlers;
/**
* Indexed container of the file transaction IDs of all the files currently
* being transfered either for recall or migration.
*/
utils::IndexedContainer<uint64_t> m_pendingTransferIds;
/**
* In-line helper function that returns a 64-bit rtcpd message body handler
* key to be used in the m_rtcpdHandler map.
*
* The 64-bit key is generated by combining the specified 32-bit magic
* number with the specified 32-bit request type.
*
* @param magic The magic number.
* @param reqType The request type.
* @return The 64-bit key.
*/
uint64_t createRtcpdHandlerKey(uint32_t magic, uint32_t reqType) throw() {
struct TwoUint32 {
uint32_t a;
uint32_t b;
};
uint64_t key;
TwoUint32 *twoUint32 = (TwoUint32*)&key;
twoUint32->a = reqType;
twoUint32->b = magic;
return key;
}
/**
* Pointer to a client message handler function, where the handler function
* is a member of this class.
*
* @param clientSock The socket-descriptor of the client-connection
* which has already been released from the socket
* catalogue and has already been closed. The
* value of this parameter is only used for logging
* and the creation of error messages.
* @param obj The message object received from the client.
* @param rtcpdSock The file descriptor of the rtcpd socket which is
* awaiting a reply.
* @param rtcpdMagic The magic number of the initiating rtcpd request.
* This magic number will be used in any acknowledge
* message to be sent to rtcpd.
* @param rtcpdReqType The request type of the initiating rtcpd
* request. This request type will be used in any
* acknowledge message to be sent to rtcpd.
* @param rtcpdTapePath The tape path associated with the initiating
* rtcpd request. If there is no such tape path,
* then the value of this parameter should be set
* to NULL.
* @param aggregatorTransactionId The tapeserver transaction ID associated
* with the request sent to the client. If no
* request was sent then this parameter should be
* set to 0.
* @param clientReqTimeStamp The time at which the client request was sent.
*/
typedef void (BridgeProtocolEngine::*ClientMsgCallback)(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
const struct timeval clientReqTimeStamp);
/**
* Datatype for the map of IObject types to client message handler.
*/
typedef std::map<int, ClientMsgCallback> ClientCallbackMap;
/**
* Map of client message handlers.
*/
ClientCallbackMap m_clientHandlers;
/**
* Processes the rtcpd and client sockets.
*/
void processSocks() throw(castor::exception::Exception);
/**
* Accepts an rtcpd connection using the specified listener socket.
*/
int acceptRtcpdConnection() throw(castor::exception::Exception);
/**
* Processes a pending socket the result of calling select().
*
* Please note that this method will modify the catalogue of
* socket-descriptors as necessary. For example closed connections will be
* released from the catalogue and newly accepted connections added.
*
* @param readFdSet The read file-descriptor set from calling select().
* @return True if the RTCOPY session should continue else false.
*/
bool processAPendingSocket(fd_set &readFdSet)
throw (castor::exception::Exception);
/**
* Processes the specified rtcpd request.
*
* @param header The header of the rtcpd request.
* @param socketFd The file descriptor of the socket from which the message
* should be read from.
* @param receivedENDOF_REQ Out parameter: Will be set to true by this
* function of an RTCP_ENDOF_REQ was received.
*/
void processRtcpdRequest(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* RTCP_FILE_REQ rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void rtcpFileReqRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* RTCP_FILEERR_REQ rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void rtcpFileErrReqRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* Processes the specified RTCP file request.
*
* This function implements the common logic of the rtcpFileReqRtcpdCallback
* and rtcpFileErrReqRtcpdCallback functions.
*
* @param header The header of the request.
* @param body The body of the request which maybe either of type
* RtcpFileRqstMsgBody or RtcpFileRqstErrMsgBody, as
* RtcpFileRqstErrMsgBody inherits from
* RtcpFileRqstMsgBody.
* @param rtcpdSock The file descriptor of the socket from which both
* the header and the body of the message have
* already been read from.
* @param receivedENDOF_REQ Out parameter: Will be set to true by this
* function of an RTCP_ENDOF_REQ was received.
*/
void processRtcpFileReq(const legacymsg::MessageHeader &header,
legacymsg::RtcpFileRqstMsgBody &body, const int rtcpdSock,
bool &receivedENDOF_REQ) throw(castor::exception::Exception);
/**
* RTCP_TAPEREQ rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void rtcpTapeReqRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* RTCP_TAPEERR rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void rtcpTapeErrReqRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* Processes the specified RTCP tape request.
*
* This function implements the common logic of the rtcpTapeReqRtcpdCallback
* and rtcpTapeErrReqRtcpdCallback functions.
*
* @param header The header of the request.
* @param body The body of the request which maybe either of type
* RtcpTapeRqstMsgBody or RtcpTapeRqstErrMsgBody, as RtcpTapeRqstErrMsgBody
* inherits from RtcpTapeRqstMsgBody.
* @param socketFd The file descriptor of the socket from which both the
* header and the body of the message have already been read from.
* @param receivedENDOF_REQ Out parameter: Will be set to true by this
* function of an RTCP_ENDOF_REQ was received.
*/
void processRtcpTape(const legacymsg::MessageHeader &header,
legacymsg::RtcpTapeRqstMsgBody &body, const int socketFd,
bool &receivedENDOF_REQ) throw(castor::exception::Exception);
/**
* RTCP_ENDOF_REQ rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void rtcpEndOfReqRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* GIVE_OUTP rtcpd message-body handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::MsgBodyCallback.
*/
void giveOutpRtcpdCallback(const legacymsg::MessageHeader &header,
const int socketFd, bool &receivedENDOF_REQ)
throw(castor::exception::Exception);
/**
* Runs a migration session.
*/
void runMigrationSession() throw(castor::exception::Exception);
/**
* Runs a recall or dump session.
*/
void runRecallSession() throw(castor::exception::Exception);
/**
* Runs a dump session.
*/
void runDumpSession() throw(castor::exception::Exception);
/**
* Throws an exception if the peer host associated with the specified
* socket is not localhost.
*
* @param socketFd The socket file descriptor.
*/
void checkPeerIsLocalhost(const int socketFd)
throw(castor::exception::Exception);
/**
* FileToMigrate client message handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::ClientMsgCallback.
*/
void fileToMigrateClientCallback(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
struct timeval clientReqTimeStamp)
throw(castor::exception::Exception);
/**
* FileToRecall client message handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::ClientMsgCallback.
*/
void fileToRecallClientCallback(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
struct timeval clientReqTimeStamp)
throw(castor::exception::Exception);
/**
* NoMoreFiles client message handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::ClientMsgCallback.
*/
void noMoreFilesClientCallback(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
struct timeval clientReqTimeStamp)
throw(castor::exception::Exception);
/**
* EndNotificationErrorReport client message handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::ClientMsgCallback.
*/
void endNotificationErrorReportClientCallback(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
struct timeval clientReqTimeStamp)
throw(castor::exception::Exception);
/**
* NotificationAcknowledge client message handler.
*
* For full documenation please see the documentation of the type
* RtcpdBridgeProtocolEngine::ClientMsgCallback.
*/
void notificationAcknowledge(
const int clientSock,
const IObject *obj,
const int rtcpdSock,
const uint32_t rtcpdMagic,
const uint32_t rtcpdReqType,
const char *rtcpdTapePath,
const uint64_t aggregatorTransactionId,
struct timeval clientReqTimeStamp)
throw(castor::exception::Exception);
}; // class BridgeProtocolEngine
} // namespace tapeserver
} // namespace tape
} // namespace castor
#endif // CASTOR_TAPE_TAPESERVER_BRIDGEPROTOCOLENGINE
castor/tape/tapebridge/BridgeSocketCatalogue.cpp 0 → 100644
View file @ bd5a1e4c
/******************************************************************************
* castor/tape/tapeserver/BridgeSocketCatalogue.hpp
*
* This file is part of the Castor project.
* See http://castor.web.cern.ch/castor
*
* Copyright (C) 2003 CERN
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,