/* Copyright (C) 2003 MySQL AB 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 */ #include <ndb_global.h> #include <NdbOut.hpp> #include <NdbTransaction.hpp> #include <NdbOperation.hpp> #include <NdbScanOperation.hpp> #include <NdbIndexScanOperation.hpp> #include <NdbIndexOperation.hpp> #include "NdbApiSignal.hpp" #include "TransporterFacade.hpp" #include "API.hpp" #include "NdbBlob.hpp" #include <signaldata/TcKeyConf.hpp> #include <signaldata/TcIndx.hpp> #include <signaldata/TcCommit.hpp> #include <signaldata/TcKeyFailConf.hpp> #include <signaldata/TcHbRep.hpp> /***************************************************************************** NdbTransaction( Ndb* aNdb ); Return Value: None Parameters: aNdb: Pointers to the Ndb object Remark: Creates a connection object. *****************************************************************************/ NdbTransaction::NdbTransaction( Ndb* aNdb ) : theSendStatus(NotInit), theCallbackFunction(NULL), theCallbackObject(NULL), theTransArrayIndex(0), theStartTransTime(0), theErrorLine(0), theErrorOperation(NULL), theNdb(aNdb), theNext(NULL), theFirstOpInList(NULL), theLastOpInList(NULL), theFirstExecOpInList(NULL), theLastExecOpInList(NULL), theCompletedFirstOp(NULL), theCompletedLastOp(NULL), theNoOfOpSent(0), theNoOfOpCompleted(0), theNoOfOpFetched(0), theMyRef(0), theTCConPtr(0), theTransactionId(0), theGlobalCheckpointId(0), p_latest_trans_gci(0), theStatus(NotConnected), theCompletionStatus(NotCompleted), theCommitStatus(NotStarted), theMagicNumber(0xFE11DC), theTransactionIsStarted(false), theDBnode(0), theReleaseOnClose(false), // Scan operations m_waitForReply(true), m_theFirstScanOperation(NULL), m_theLastScanOperation(NULL), m_firstExecutedScanOp(NULL), // Scan operations theScanningOp(NULL), theBuddyConPtr(0xFFFFFFFF), theBlobFlag(false), thePendingBlobOps(0) { theListState = NotInList; theError.code = 0; theId = theNdb->theImpl->theNdbObjectIdMap.map(this); #define CHECK_SZ(mask, sz) assert((sizeof(mask)/sizeof(mask[0])) == sz) CHECK_SZ(m_db_nodes, NdbNodeBitmask::Size); CHECK_SZ(m_failed_db_nodes, NdbNodeBitmask::Size); }//NdbTransaction::NdbTransaction() /***************************************************************************** ~NdbTransaction(); Remark: Deletes the connection object. *****************************************************************************/ NdbTransaction::~NdbTransaction() { DBUG_ENTER("NdbTransaction::~NdbTransaction"); theNdb->theImpl->theNdbObjectIdMap.unmap(theId, this); DBUG_VOID_RETURN; }//NdbTransaction::~NdbTransaction() /***************************************************************************** void init(); Remark: Initialise connection object for new transaction. *****************************************************************************/ void NdbTransaction::init() { theListState = NotInList; theInUseState = true; theTransactionIsStarted = false; theNext = NULL; theFirstOpInList = NULL; theLastOpInList = NULL; theScanningOp = NULL; theFirstExecOpInList = NULL; theLastExecOpInList = NULL; theCompletedFirstOp = NULL; theCompletedLastOp = NULL; theGlobalCheckpointId = 0; p_latest_trans_gci = theNdb->theImpl->m_ndb_cluster_connection.get_latest_trans_gci(); theCommitStatus = Started; theCompletionStatus = NotCompleted; m_abortOption = AbortOnError; theError.code = 0; theErrorLine = 0; theErrorOperation = NULL; theReleaseOnClose = false; theSimpleState = true; theSendStatus = InitState; theMagicNumber = 0x37412619; // Scan operations m_waitForReply = true; m_theFirstScanOperation = NULL; m_theLastScanOperation = NULL; m_firstExecutedScanOp = 0; theBuddyConPtr = 0xFFFFFFFF; // theBlobFlag = false; thePendingBlobOps = 0; }//NdbTransaction::init() /***************************************************************************** setOperationErrorCode(int error); Remark: Sets an error code on the connection object from an operation object. *****************************************************************************/ void NdbTransaction::setOperationErrorCode(int error) { DBUG_ENTER("NdbTransaction::setOperationErrorCode"); setErrorCode(error); DBUG_VOID_RETURN; } /***************************************************************************** setOperationErrorCodeAbort(int error); Remark: Sets an error code on the connection object from an operation object. *****************************************************************************/ void NdbTransaction::setOperationErrorCodeAbort(int error, int abortOption) { DBUG_ENTER("NdbTransaction::setOperationErrorCodeAbort"); if (abortOption == -1) abortOption = m_abortOption; if (theTransactionIsStarted == false) { theCommitStatus = Aborted; } else if ((abortOption == AbortOnError) && (theCommitStatus != Committed) && (theCommitStatus != Aborted)) { theCommitStatus = NeedAbort; }//if setErrorCode(error); DBUG_VOID_RETURN; } /***************************************************************************** setErrorCode(int anErrorCode); Remark: Sets an error indication on the connection object. *****************************************************************************/ void NdbTransaction::setErrorCode(int error) { DBUG_ENTER("NdbTransaction::setErrorCode"); DBUG_PRINT("enter", ("error: %d, theError.code: %d", error, theError.code)); if (theError.code == 0) theError.code = error; DBUG_VOID_RETURN; }//NdbTransaction::setErrorCode() int NdbTransaction::restart(){ DBUG_ENTER("NdbTransaction::restart"); if(theCompletionStatus == CompletedSuccess){ releaseCompletedOperations(); Uint64 tTransid = theNdb->theFirstTransId; theTransactionId = tTransid; if ((tTransid & 0xFFFFFFFF) == 0xFFFFFFFF) { theNdb->theFirstTransId = (tTransid >> 32) << 32; } else { theNdb->theFirstTransId = tTransid + 1; } theCommitStatus = Started; theCompletionStatus = NotCompleted; theTransactionIsStarted = false; DBUG_RETURN(0); } DBUG_PRINT("error",("theCompletionStatus != CompletedSuccess")); DBUG_RETURN(-1); } /***************************************************************************** void handleExecuteCompletion(void); Remark: Handle time-out on a transaction object. *****************************************************************************/ void NdbTransaction::handleExecuteCompletion() { /*************************************************************************** * Move the NdbOperation objects from the list of executing * operations to list of completed **************************************************************************/ NdbOperation* tFirstExecOp = theFirstExecOpInList; NdbOperation* tLastExecOp = theLastExecOpInList; if (tLastExecOp != NULL) { tLastExecOp->next(theCompletedFirstOp); theCompletedFirstOp = tFirstExecOp; if (theCompletedLastOp == NULL) theCompletedLastOp = tLastExecOp; theFirstExecOpInList = NULL; theLastExecOpInList = NULL; }//if theSendStatus = InitState; return; }//NdbTransaction::handleExecuteCompletion() /***************************************************************************** int execute(ExecType aTypeOfExec, CommitType aTypeOfCommit, int forceSend); Return Value: Return 0 : execute was successful. Return -1: In all other case. Parameters : aTypeOfExec: Type of execute. Remark: Initialise connection object for new transaction. *****************************************************************************/ int NdbTransaction::execute(ExecType aTypeOfExec, AbortOption abortOption, int forceSend) { NdbError savedError= theError; DBUG_ENTER("NdbTransaction::execute"); DBUG_PRINT("enter", ("aTypeOfExec: %d, abortOption: %d", aTypeOfExec, abortOption)); if (! theBlobFlag) DBUG_RETURN(executeNoBlobs(aTypeOfExec, abortOption, forceSend)); /* * execute prepared ops in batches, as requested by blobs * - blob error does not terminate execution * - blob error sets error on operation * - if error on operation skip blob calls */ ExecType tExecType; NdbOperation* tPrepOp; NdbOperation* tCompletedFirstOp = NULL; NdbOperation* tCompletedLastOp = NULL; int ret = 0; do { tExecType = aTypeOfExec; tPrepOp = theFirstOpInList; while (tPrepOp != NULL) { if (tPrepOp->theError.code == 0) { bool batch = false; NdbBlob* tBlob = tPrepOp->theBlobList; while (tBlob != NULL) { if (tBlob->preExecute(tExecType, batch) == -1) { ret = -1; if(savedError.code==0) savedError= theError; } tBlob = tBlob->theNext; } if (batch) { // blob asked to execute all up to here now tExecType = NoCommit; break; } } tPrepOp = tPrepOp->next(); } // save rest of prepared ops if batch NdbOperation* tRestOp= 0; NdbOperation* tLastOp= 0; if (tPrepOp != NULL) { tRestOp = tPrepOp->next(); tPrepOp->next(NULL); tLastOp = theLastOpInList; theLastOpInList = tPrepOp; } if (tExecType == Commit) { NdbOperation* tOp = theCompletedFirstOp; while (tOp != NULL) { if (tOp->theError.code == 0) { NdbBlob* tBlob = tOp->theBlobList; while (tBlob != NULL) { if (tBlob->preCommit() == -1) { ret = -1; if(savedError.code==0) savedError= theError; } tBlob = tBlob->theNext; } } tOp = tOp->next(); } } // completed ops are in unspecified order if (theCompletedFirstOp != NULL) { if (tCompletedFirstOp == NULL) { tCompletedFirstOp = theCompletedFirstOp; tCompletedLastOp = theCompletedLastOp; } else { tCompletedLastOp->next(theCompletedFirstOp); tCompletedLastOp = theCompletedLastOp; } theCompletedFirstOp = NULL; theCompletedLastOp = NULL; } if (executeNoBlobs(tExecType, abortOption, forceSend) == -1) { ret = -1; if(savedError.code==0) savedError= theError; /** * If AO_IgnoreError, error codes arent always set on individual * operations, making postExecute impossible */ if (abortOption == AO_IgnoreError) { if (theCompletedFirstOp != NULL) { if (tCompletedFirstOp != NULL) { tCompletedLastOp->next(theCompletedFirstOp); theCompletedFirstOp = tCompletedFirstOp; } } else { theCompletedFirstOp = tCompletedFirstOp; theCompletedLastOp = tCompletedLastOp; } if (tPrepOp != NULL && tRestOp != NULL) { if (theFirstOpInList == NULL) theFirstOpInList = tRestOp; else theLastOpInList->next(tRestOp); theLastOpInList = tLastOp; } DBUG_RETURN(-1); } } #ifdef ndb_api_crash_on_complex_blob_abort assert(theFirstOpInList == NULL && theLastOpInList == NULL); #else theFirstOpInList = theLastOpInList = NULL; #endif { NdbOperation* tOp = theCompletedFirstOp; while (tOp != NULL) { if (tOp->theError.code == 0) { NdbBlob* tBlob = tOp->theBlobList; while (tBlob != NULL) { // may add new operations if batch if (tBlob->postExecute(tExecType) == -1) { ret = -1; if(savedError.code==0) savedError= theError; } tBlob = tBlob->theNext; } } tOp = tOp->next(); } } // add saved prepared ops if batch if (tPrepOp != NULL && tRestOp != NULL) { if (theFirstOpInList == NULL) theFirstOpInList = tRestOp; else theLastOpInList->next(tRestOp); theLastOpInList = tLastOp; } assert(theFirstOpInList == NULL || tExecType == NoCommit); } while (theFirstOpInList != NULL || tExecType != aTypeOfExec); if (tCompletedFirstOp != NULL) { tCompletedLastOp->next(theCompletedFirstOp); theCompletedFirstOp = tCompletedFirstOp; if (theCompletedLastOp == NULL) theCompletedLastOp = tCompletedLastOp; } #if ndb_api_count_completed_ops_after_blob_execute { NdbOperation* tOp; unsigned n = 0; for (tOp = theCompletedFirstOp; tOp != NULL; tOp = tOp->next()) n++; ndbout << "completed ops: " << n << endl; } #endif if(savedError.code!=0 && theError.code==4350) // Trans already aborted theError= savedError; DBUG_RETURN(ret); } int NdbTransaction::executeNoBlobs(ExecType aTypeOfExec, AbortOption abortOption, int forceSend) { DBUG_ENTER("NdbTransaction::executeNoBlobs"); DBUG_PRINT("enter", ("aTypeOfExec: %d, abortOption: %d", aTypeOfExec, abortOption)); //------------------------------------------------------------------------ // We will start by preparing all operations in the transaction defined // since last execute or since beginning. If this works ok we will continue // by calling the poll with wait method. This method will return when // the NDB kernel has completed its task or when 10 seconds have passed. // The NdbTransactionCallBack-method will receive the return code of the // transaction. The normal methods of reading error codes still apply. //------------------------------------------------------------------------ Ndb* tNdb = theNdb; Uint32 timeout = theNdb->theImpl->m_transporter_facade->m_waitfor_timeout; m_waitForReply = false; executeAsynchPrepare(aTypeOfExec, NULL, NULL, abortOption); if (m_waitForReply){ while (1) { int noOfComp = tNdb->sendPollNdb(3 * timeout, 1, forceSend); if (noOfComp == 0) { /** * This timeout situation can occur if NDB crashes. */ ndbout << "This timeout should never occur, execute(..)" << endl; setOperationErrorCodeAbort(4012); // Error code for "Cluster Failure" DBUG_RETURN(-1); }//if /* * Check that the completed transactions include this one. There * could be another thread running asynchronously. Even in pure * async case rollback is done synchronously. */ if (theListState != NotInList) continue; #ifdef VM_TRACE unsigned anyway = 0; for (unsigned i = 0; i < theNdb->theNoOfPreparedTransactions; i++) anyway += theNdb->thePreparedTransactionsArray[i] == this; for (unsigned i = 0; i < theNdb->theNoOfSentTransactions; i++) anyway += theNdb->theSentTransactionsArray[i] == this; for (unsigned i = 0; i < theNdb->theNoOfCompletedTransactions; i++) anyway += theNdb->theCompletedTransactionsArray[i] == this; if (anyway) { theNdb->printState("execute %x", this); abort(); } #endif if (theReturnStatus == ReturnFailure) { DBUG_RETURN(-1); }//if break; } } thePendingBlobOps = 0; DBUG_RETURN(0); }//NdbTransaction::execute() /***************************************************************************** void executeAsynchPrepare(ExecType aTypeOfExec, NdbAsynchCallback callBack, void* anyObject, CommitType aTypeOfCommit); Return Value: No return value Parameters : aTypeOfExec: Type of execute. anyObject: An object provided in the callback method callBack: The callback method aTypeOfCommit: What to do when read/updated/deleted records are missing or inserted records already exist. Remark: Prepare a part of a transaction in an asynchronous manner. *****************************************************************************/ void NdbTransaction::executeAsynchPrepare( ExecType aTypeOfExec, NdbAsynchCallback aCallback, void* anyObject, AbortOption abortOption) { DBUG_ENTER("NdbTransaction::executeAsynchPrepare"); DBUG_PRINT("enter", ("aTypeOfExec: %d, aCallback: %x, anyObject: %x", aTypeOfExec, aCallback, anyObject)); /** * Reset error.code on execute */ if (theError.code != 0) DBUG_PRINT("enter", ("Resetting error %d on execute", theError.code)); theError.code = 0; NdbScanOperation* tcOp = m_theFirstScanOperation; if (tcOp != 0){ // Execute any cursor operations while (tcOp != NULL) { int tReturnCode; tReturnCode = tcOp->executeCursor(theDBnode); if (tReturnCode == -1) { DBUG_VOID_RETURN; }//if tcOp = (NdbScanOperation*)tcOp->next(); } // while m_theLastScanOperation->next(m_firstExecutedScanOp); m_firstExecutedScanOp = m_theFirstScanOperation; // Discard cursor operations, since these are also // in the complete operations list we do not need // to release them. m_theFirstScanOperation = m_theLastScanOperation = NULL; } bool tTransactionIsStarted = theTransactionIsStarted; NdbOperation* tLastOp = theLastOpInList; Ndb* tNdb = theNdb; CommitStatusType tCommitStatus = theCommitStatus; Uint32 tnoOfPreparedTransactions = tNdb->theNoOfPreparedTransactions; theReturnStatus = ReturnSuccess; theCallbackFunction = aCallback; theCallbackObject = anyObject; m_abortOption = abortOption; m_waitForReply = true; tNdb->thePreparedTransactionsArray[tnoOfPreparedTransactions] = this; theTransArrayIndex = tnoOfPreparedTransactions; theListState = InPreparedList; tNdb->theNoOfPreparedTransactions = tnoOfPreparedTransactions + 1; if ((tCommitStatus != Started) || (aTypeOfExec == Rollback)) { /***************************************************************************** * Rollback have been ordered on a started transaction. Call rollback. * Could also be state problem or previous problem which leads to the * same action. ****************************************************************************/ if (aTypeOfExec == Rollback) { if (theTransactionIsStarted == false || theSimpleState) { theCommitStatus = Aborted; theSendStatus = sendCompleted; } else { theSendStatus = sendABORT; } } else { theSendStatus = sendABORTfail; }//if if (theCommitStatus == Aborted){ DBUG_PRINT("exit", ("theCommitStatus: Aborted")); setErrorCode(4350); } DBUG_VOID_RETURN; }//if if (tTransactionIsStarted == true) { if (tLastOp != NULL) { if (aTypeOfExec == Commit) { /***************************************************************************** * Set commit indicator on last operation when commit has been ordered * and also a number of operations. ******************************************************************************/ tLastOp->theCommitIndicator = 1; }//if } else { if (aTypeOfExec == Commit && !theSimpleState) { /********************************************************************** * A Transaction have been started and no more operations exist. * We will use the commit method. *********************************************************************/ theSendStatus = sendCOMMITstate; DBUG_VOID_RETURN; } else { /********************************************************************** * We need to put it into the array of completed transactions to * ensure that we report the completion in a proper way. * We cannot do this here since that would endanger the completed * transaction array since that is also updated from the receiver * thread and thus we need to do it under mutex lock and thus we * set the sendStatus to ensure that the send method will * put it into the completed array. **********************************************************************/ theSendStatus = sendCompleted; DBUG_VOID_RETURN; // No Commit with no operations is OK }//if }//if } else if (tTransactionIsStarted == false) { NdbOperation* tFirstOp = theFirstOpInList; if (tLastOp != NULL) { tFirstOp->setStartIndicator(); if (aTypeOfExec == Commit) { tLastOp->theCommitIndicator = 1; }//if } else { /*********************************************************************** * No operations are defined and we have not started yet. * Simply return OK. Set commit status if Commit. ***********************************************************************/ if (aTypeOfExec == Commit) { theCommitStatus = Committed; }//if /*********************************************************************** * We need to put it into the array of completed transactions to * ensure that we report the completion in a proper way. We * cannot do this here since that would endanger the completed * transaction array since that is also updated from the * receiver thread and thus we need to do it under mutex lock * and thus we set the sendStatus to ensure that the send method * will put it into the completed array. ***********************************************************************/ theSendStatus = sendCompleted; DBUG_VOID_RETURN; }//if } NdbOperation* tOp = theFirstOpInList; theCompletionStatus = NotCompleted; while (tOp) { int tReturnCode; NdbOperation* tNextOp = tOp->next(); tReturnCode = tOp->prepareSend(theTCConPtr, theTransactionId); if (tReturnCode == -1) { theSendStatus = sendABORTfail; DBUG_VOID_RETURN; }//if /************************************************************************* * Now that we have successfully prepared the send of this operation we * move it to the list of executing operations and remove it from the * list of defined operations. ************************************************************************/ tOp = tNextOp; } NdbOperation* tLastOpInList = theLastOpInList; NdbOperation* tFirstOpInList = theFirstOpInList; theFirstOpInList = NULL; theLastOpInList = NULL; theFirstExecOpInList = tFirstOpInList; theLastExecOpInList = tLastOpInList; theCompletionStatus = CompletedSuccess; theNoOfOpSent = 0; theNoOfOpCompleted = 0; theSendStatus = sendOperations; NdbNodeBitmask::clear(m_db_nodes); NdbNodeBitmask::clear(m_failed_db_nodes); DBUG_VOID_RETURN; }//NdbTransaction::executeAsynchPrepare() void NdbTransaction::close() { theNdb->closeTransaction(this); } int NdbTransaction::refresh(){ return sendTC_HBREP(); } /***************************************************************************** int sendTC_HBREP(); Return Value: No return value. Parameters : None. Remark: Order NDB to refresh the timeout counter of the transaction. ******************************************************************************/ int NdbTransaction::sendTC_HBREP() // Send a TC_HBREP signal; { NdbApiSignal* tSignal; Ndb* tNdb = theNdb; Uint32 tTransId1, tTransId2; tSignal = tNdb->getSignal(); if (tSignal == NULL) { return -1; } if (tSignal->setSignal(GSN_TC_HBREP) == -1) { return -1; } TcHbRep * const tcHbRep = CAST_PTR(TcHbRep, tSignal->getDataPtrSend()); tcHbRep->apiConnectPtr = theTCConPtr; tTransId1 = (Uint32) theTransactionId; tTransId2 = (Uint32) (theTransactionId >> 32); tcHbRep->transId1 = tTransId1; tcHbRep->transId2 = tTransId2; TransporterFacade *tp = theNdb->theImpl->m_transporter_facade; tp->lock_mutex(); const int res = tp->sendSignal(tSignal,theDBnode); tp->unlock_mutex(); tNdb->releaseSignal(tSignal); if (res == -1){ return -1; } return 0; }//NdbTransaction::sendTC_HBREP() /***************************************************************************** int doSend(); Return Value: Return 0 : send was successful. Return -1: In all other case. Remark: Send all operations belonging to this connection. The caller of this method has the responsibility to remove the object from the prepared transactions array on the Ndb-object. *****************************************************************************/ int NdbTransaction::doSend() { DBUG_ENTER("NdbTransaction::doSend"); /* This method assumes that at least one operation have been defined. This is ensured by the caller of this routine (=execute). */ switch(theSendStatus){ case sendOperations: { NdbOperation * tOp = theFirstExecOpInList; do { NdbOperation* tNextOp = tOp->next(); const Uint32 lastFlag = ((tNextOp == NULL) ? 1 : 0); const int tReturnCode = tOp->doSend(theDBnode, lastFlag); if (tReturnCode == -1) { theReturnStatus = ReturnFailure; break; }//if tOp = tNextOp; } while (tOp != NULL); Ndb* tNdb = theNdb; theSendStatus = sendTC_OP; theTransactionIsStarted = true; tNdb->insert_sent_list(this); DBUG_RETURN(0); }//case case sendABORT: case sendABORTfail:{ /*********************************************************************** * Rollback have been ordered on a not started transaction. * Simply return OK and set abort status. ***********************************************************************/ if (theSendStatus == sendABORTfail) { theReturnStatus = ReturnFailure; }//if if (sendROLLBACK() == 0) { DBUG_RETURN(0); }//if break; }//case case sendCOMMITstate: if (sendCOMMIT() == 0) { DBUG_RETURN(0); }//if break; case sendCompleted: theNdb->insert_completed_list(this); DBUG_RETURN(0); default: ndbout << "Inconsistent theSendStatus = " << (Uint32) theSendStatus << endl; abort(); break; }//switch setOperationErrorCodeAbort(4002); theReleaseOnClose = true; theTransactionIsStarted = false; theCommitStatus = Aborted; DBUG_RETURN(-1); }//NdbTransaction::doSend() /************************************************************************** int sendROLLBACK(); Return Value: Return -1 if send unsuccessful. Parameters : None. Remark: Order NDB to rollback the transaction. **************************************************************************/ int NdbTransaction::sendROLLBACK() // Send a TCROLLBACKREQ signal; { Ndb* tNdb = theNdb; if ((theTransactionIsStarted == true) && (theCommitStatus != Committed) && (theCommitStatus != Aborted)) { /************************************************************************** * The user did not perform any rollback but simply closed the * transaction. We must rollback Ndb since Ndb have been contacted. *************************************************************************/ NdbApiSignal tSignal(tNdb->theMyRef); Uint32 tTransId1, tTransId2; TransporterFacade *tp = theNdb->theImpl->m_transporter_facade; int tReturnCode; tTransId1 = (Uint32) theTransactionId; tTransId2 = (Uint32) (theTransactionId >> 32); tSignal.setSignal(GSN_TCROLLBACKREQ); tSignal.setData(theTCConPtr, 1); tSignal.setData(tTransId1, 2); tSignal.setData(tTransId2, 3); tReturnCode = tp->sendSignal(&tSignal,theDBnode); if (tReturnCode != -1) { theSendStatus = sendTC_ROLLBACK; tNdb->insert_sent_list(this); return 0; }//if /********************************************************************* * It was not possible to abort the transaction towards the NDB kernel * and thus we put it into the array of completed transactions that * are ready for reporting to the application. *********************************************************************/ return -1; } else { /* It is not necessary to abort the transaction towards the NDB kernel and thus we put it into the array of completed transactions that are ready for reporting to the application. */ theSendStatus = sendCompleted; tNdb->insert_completed_list(this); return 0; ; }//if }//NdbTransaction::sendROLLBACK() /*************************************************************************** int sendCOMMIT(); Return Value: Return 0 : send was successful. Return -1: In all other case. Parameters : None. Remark: Order NDB to commit the transaction. ***************************************************************************/ int NdbTransaction::sendCOMMIT() // Send a TC_COMMITREQ signal; { NdbApiSignal tSignal(theNdb->theMyRef); Uint32 tTransId1, tTransId2; TransporterFacade *tp = theNdb->theImpl->m_transporter_facade; int tReturnCode; tTransId1 = (Uint32) theTransactionId; tTransId2 = (Uint32) (theTransactionId >> 32); tSignal.setSignal(GSN_TC_COMMITREQ); tSignal.setData(theTCConPtr, 1); tSignal.setData(tTransId1, 2); tSignal.setData(tTransId2, 3); tReturnCode = tp->sendSignal(&tSignal,theDBnode); if (tReturnCode != -1) { theSendStatus = sendTC_COMMIT; theNdb->insert_sent_list(this); return 0; } else { return -1; }//if }//NdbTransaction::sendCOMMIT() /****************************************************************************** void release(); Remark: Release all operations. ******************************************************************************/ void NdbTransaction::release(){ releaseOperations(); if ( (theTransactionIsStarted == true) && ((theCommitStatus != Committed) && (theCommitStatus != Aborted))) { /************************************************************************ * The user did not perform any rollback but simply closed the * transaction. We must rollback Ndb since Ndb have been contacted. ************************************************************************/ execute(Rollback); }//if theMagicNumber = 0xFE11DC; theInUseState = false; #ifdef VM_TRACE if (theListState != NotInList) { theNdb->printState("release %x", this); abort(); } #endif }//NdbTransaction::release() void NdbTransaction::releaseOps(NdbOperation* tOp){ while (tOp != NULL) { NdbOperation* tmp = tOp; tOp->release(); tOp = tOp->next(); theNdb->releaseOperation(tmp); }//while } /****************************************************************************** void releaseOperations(); Remark: Release all operations. ******************************************************************************/ void NdbTransaction::releaseOperations() { // Release any open scans releaseScanOperations(m_theFirstScanOperation); releaseScanOperations(m_firstExecutedScanOp); releaseOps(theCompletedFirstOp); releaseOps(theFirstOpInList); releaseOps(theFirstExecOpInList); theCompletedFirstOp = NULL; theCompletedLastOp = NULL; theFirstOpInList = NULL; theFirstExecOpInList = NULL; theLastOpInList = NULL; theLastExecOpInList = NULL; theScanningOp = NULL; m_theFirstScanOperation = NULL; m_theLastScanOperation = NULL; m_firstExecutedScanOp = NULL; }//NdbTransaction::releaseOperations() void NdbTransaction::releaseCompletedOperations() { releaseOps(theCompletedFirstOp); theCompletedFirstOp = NULL; theCompletedLastOp = NULL; }//NdbTransaction::releaseOperations() /****************************************************************************** void releaseScanOperations(); Remark: Release all cursor operations. (NdbScanOperation and NdbIndexOperation) ******************************************************************************/ void NdbTransaction::releaseScanOperations(NdbIndexScanOperation* cursorOp) { while(cursorOp != 0){ NdbIndexScanOperation* next = (NdbIndexScanOperation*)cursorOp->next(); cursorOp->release(); theNdb->releaseScanOperation(cursorOp); cursorOp = next; } }//NdbTransaction::releaseScanOperations() /***************************************************************************** void releaseScanOperation(); Remark: Release scan op when hupp'ed trans closed (save memory) ******************************************************************************/ void NdbTransaction::releaseExecutedScanOperation(NdbIndexScanOperation* cursorOp) { DBUG_ENTER("NdbTransaction::releaseExecutedScanOperation"); DBUG_PRINT("enter", ("this=0x%x op=0x%x", (UintPtr)this, (UintPtr)cursorOp)); releaseScanOperation(&m_firstExecutedScanOp, 0, cursorOp); DBUG_VOID_RETURN; }//NdbTransaction::releaseExecutedScanOperation() bool NdbTransaction::releaseScanOperation(NdbIndexScanOperation** listhead, NdbIndexScanOperation** listtail, NdbIndexScanOperation* op) { if (* listhead == op) { * listhead = (NdbIndexScanOperation*)op->theNext; if (listtail && *listtail == op) { assert(* listhead == 0); * listtail = 0; } } else { NdbIndexScanOperation* tmp = * listhead; while (tmp != NULL) { if (tmp->theNext == op) { tmp->theNext = (NdbIndexScanOperation*)op->theNext; if (listtail && *listtail == op) { assert(op->theNext == 0); *listtail = tmp; } break; } tmp = (NdbIndexScanOperation*)tmp->theNext; } if (tmp == NULL) op = NULL; } if (op != NULL) { op->release(); theNdb->releaseScanOperation(op); return true; } return false; } /***************************************************************************** NdbOperation* getNdbOperation(const char* aTableName); Return Value Return a pointer to a NdbOperation object if getNdbOperation was succesful. Return NULL : In all other case. Parameters: aTableName : Name of the database table. Remark: Get an operation from NdbOperation idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbOperation object. synchronous ******************************************************************************/ NdbOperation* NdbTransaction::getNdbOperation(const char* aTableName) { if (theCommitStatus == Started){ NdbTableImpl* table = theNdb->theDictionary->getTable(aTableName); if (table != 0){ return getNdbOperation(table); } else { setErrorCode(theNdb->theDictionary->getNdbError().code); return NULL; }//if } setOperationErrorCodeAbort(4114); return NULL; }//NdbTransaction::getNdbOperation() /***************************************************************************** NdbOperation* getNdbOperation(int aTableId); Return Value Return a pointer to a NdbOperation object if getNdbOperation was succesful. Return NULL: In all other case. Parameters: tableId : Id of the database table beeing deleted. Remark: Get an operation from NdbOperation object idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbOperation object, synchronous. *****************************************************************************/ NdbOperation* NdbTransaction::getNdbOperation(const NdbTableImpl * tab, NdbOperation* aNextOp) { NdbOperation* tOp; if (theScanningOp != NULL){ setErrorCode(4607); return NULL; } tOp = theNdb->getOperation(); if (tOp == NULL) goto getNdbOp_error1; if (aNextOp == NULL) { if (theLastOpInList != NULL) { theLastOpInList->next(tOp); theLastOpInList = tOp; } else { theLastOpInList = tOp; theFirstOpInList = tOp; }//if tOp->next(NULL); } else { // add before the given op if (theFirstOpInList == aNextOp) { theFirstOpInList = tOp; } else { NdbOperation* aLoopOp = theFirstOpInList; while (aLoopOp != NULL && aLoopOp->next() != aNextOp) aLoopOp = aLoopOp->next(); assert(aLoopOp != NULL); aLoopOp->next(tOp); } tOp->next(aNextOp); } if (tOp->init(tab, this) != -1) { return tOp; } else { theNdb->releaseOperation(tOp); }//if return NULL; getNdbOp_error1: setOperationErrorCodeAbort(4000); return NULL; }//NdbTransaction::getNdbOperation() NdbOperation* NdbTransaction::getNdbOperation(const NdbDictionary::Table * table) { if (table) return getNdbOperation(& NdbTableImpl::getImpl(*table)); else return NULL; }//NdbTransaction::getNdbOperation() // NdbScanOperation /***************************************************************************** NdbScanOperation* getNdbScanOperation(const char* aTableName); Return Value Return a pointer to a NdbScanOperation object if getNdbScanOperation was succesful. Return NULL : In all other case. Parameters: aTableName : Name of the database table. Remark: Get an operation from NdbScanOperation idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbOperation object.synchronous ******************************************************************************/ NdbScanOperation* NdbTransaction::getNdbScanOperation(const char* aTableName) { if (theCommitStatus == Started){ NdbTableImpl* tab = theNdb->theDictionary->getTable(aTableName); if (tab != 0){ return getNdbScanOperation(tab); } else { setOperationErrorCodeAbort(theNdb->theDictionary->m_error.code); return NULL; }//if } setOperationErrorCodeAbort(4114); return NULL; }//NdbTransaction::getNdbScanOperation() /***************************************************************************** NdbScanOperation* getNdbIndexScanOperation(const char* anIndexName, const char* aTableName); Return Value Return a pointer to a NdbIndexScanOperation object if getNdbIndexScanOperation was succesful. Return NULL : In all other case. Parameters: anIndexName : Name of the index to use. aTableName : Name of the database table. Remark: Get an operation from NdbIndexScanOperation idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbIndexScanOperation object.synchronous ******************************************************************************/ NdbIndexScanOperation* NdbTransaction::getNdbIndexScanOperation(const char* anIndexName, const char* aTableName) { NdbIndexImpl* index = theNdb->theDictionary->getIndex(anIndexName, aTableName); if (index == 0) { setOperationErrorCodeAbort(theNdb->theDictionary->getNdbError().code); return 0; } NdbTableImpl* table = theNdb->theDictionary->getTable(aTableName); if (table == 0) { setOperationErrorCodeAbort(theNdb->theDictionary->getNdbError().code); return 0; } return getNdbIndexScanOperation(index, table); } NdbIndexScanOperation* NdbTransaction::getNdbIndexScanOperation(const NdbIndexImpl* index, const NdbTableImpl* table) { if (theCommitStatus == Started){ const NdbTableImpl * indexTable = index->getIndexTable(); if (indexTable != 0){ NdbIndexScanOperation* tOp = getNdbScanOperation(indexTable); if(tOp) { tOp->m_currentTable = table; // Mark that this really an NdbIndexScanOperation tOp->m_type = NdbOperation::OrderedIndexScan; } return tOp; } else { setOperationErrorCodeAbort(4271); return NULL; }//if } setOperationErrorCodeAbort(4114); return NULL; }//NdbTransaction::getNdbIndexScanOperation() NdbIndexScanOperation* NdbTransaction::getNdbIndexScanOperation(const NdbDictionary::Index * index) { if (index) { const NdbDictionary::Table *table= theNdb->theDictionary->getTable(index->getTable()); if (table) return getNdbIndexScanOperation(index, table); setOperationErrorCodeAbort(theNdb->theDictionary->getNdbError().code); return NULL; } setOperationErrorCodeAbort(4271); return NULL; } NdbIndexScanOperation* NdbTransaction::getNdbIndexScanOperation(const NdbDictionary::Index * index, const NdbDictionary::Table * table) { if (index && table) return getNdbIndexScanOperation(& NdbIndexImpl::getImpl(*index), & NdbTableImpl::getImpl(*table)); setOperationErrorCodeAbort(4271); return NULL; }//NdbTransaction::getNdbIndexScanOperation() /***************************************************************************** NdbScanOperation* getNdbScanOperation(int aTableId); Return Value Return a pointer to a NdbScanOperation object if getNdbScanOperation was succesful. Return NULL: In all other case. Parameters: tableId : Id of the database table beeing deleted. Remark: Get an operation from NdbScanOperation object idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbScanOperation object, synchronous. *****************************************************************************/ NdbIndexScanOperation* NdbTransaction::getNdbScanOperation(const NdbTableImpl * tab) { NdbIndexScanOperation* tOp; tOp = theNdb->getScanOperation(); if (tOp == NULL) goto getNdbOp_error1; if (tOp->init(tab, this) != -1) { define_scan_op(tOp); // Mark that this NdbIndexScanOperation is used as NdbScanOperation tOp->m_type = NdbOperation::TableScan; return tOp; } else { theNdb->releaseScanOperation(tOp); }//if return NULL; getNdbOp_error1: setOperationErrorCodeAbort(4000); return NULL; }//NdbTransaction::getNdbScanOperation() void NdbTransaction::remove_list(NdbOperation*& list, NdbOperation* op){ NdbOperation* tmp= list; if(tmp == op) list = op->next(); else { while(tmp && tmp->next() != op) tmp = tmp->next(); if(tmp) tmp->next(op->next()); } op->next(NULL); } void NdbTransaction::define_scan_op(NdbIndexScanOperation * tOp){ // Link scan operation into list of cursor operations if (m_theLastScanOperation == NULL) m_theFirstScanOperation = m_theLastScanOperation = tOp; else { m_theLastScanOperation->next(tOp); m_theLastScanOperation = tOp; } tOp->next(NULL); } NdbScanOperation* NdbTransaction::getNdbScanOperation(const NdbDictionary::Table * table) { if (table) return getNdbScanOperation(& NdbTableImpl::getImpl(*table)); else return NULL; }//NdbTransaction::getNdbScanOperation() // IndexOperation /***************************************************************************** NdbIndexOperation* getNdbIndexOperation(const char* anIndexName, const char* aTableName); Return Value Return a pointer to a NdbOperation object if getNdbIndexOperation was succesful. Return NULL : In all other case. Parameters: aTableName : Name of the database table. Remark: Get an operation from NdbIndexOperation idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbIndexOperation object.synchronous ******************************************************************************/ NdbIndexOperation* NdbTransaction::getNdbIndexOperation(const char* anIndexName, const char* aTableName) { if (theCommitStatus == Started) { NdbTableImpl * table = theNdb->theDictionary->getTable(aTableName); NdbIndexImpl * index; if (table == 0) { setOperationErrorCodeAbort(theNdb->theDictionary->getNdbError().code); return NULL; } if (table->m_frm.get_data()) { // This unique index is defined from SQL level static const char* uniqueSuffix= "$unique"; BaseString uniqueIndexName(anIndexName); uniqueIndexName.append(uniqueSuffix); index = theNdb->theDictionary->getIndex(uniqueIndexName.c_str(), aTableName); } else index = theNdb->theDictionary->getIndex(anIndexName, aTableName); if(table != 0 && index != 0){ return getNdbIndexOperation(index, table); } if(index == 0){ setOperationErrorCodeAbort(4243); return NULL; } setOperationErrorCodeAbort(4243); return NULL; } setOperationErrorCodeAbort(4114); return 0; }//NdbTransaction::getNdbIndexOperation() /***************************************************************************** NdbIndexOperation* getNdbIndexOperation(int anIndexId, int aTableId); Return Value Return a pointer to a NdbIndexOperation object if getNdbIndexOperation was succesful. Return NULL: In all other case. Parameters: tableId : Id of the database table beeing deleted. Remark: Get an operation from NdbIndexOperation object idlelist and get the NdbTransaction object who was fetch by startTransaction pointing to this operation getOperation will set the theTableId in the NdbIndexOperation object, synchronous. *****************************************************************************/ NdbIndexOperation* NdbTransaction::getNdbIndexOperation(const NdbIndexImpl * anIndex, const NdbTableImpl * aTable, NdbOperation* aNextOp) { NdbIndexOperation* tOp; tOp = theNdb->getIndexOperation(); if (tOp == NULL) goto getNdbOp_error1; if (aNextOp == NULL) { if (theLastOpInList != NULL) { theLastOpInList->next(tOp); theLastOpInList = tOp; } else { theLastOpInList = tOp; theFirstOpInList = tOp; }//if tOp->next(NULL); } else { // add before the given op if (theFirstOpInList == aNextOp) { theFirstOpInList = tOp; } else { NdbOperation* aLoopOp = theFirstOpInList; while (aLoopOp != NULL && aLoopOp->next() != aNextOp) aLoopOp = aLoopOp->next(); assert(aLoopOp != NULL); aLoopOp->next(tOp); } tOp->next(aNextOp); } if (tOp->indxInit(anIndex, aTable, this)!= -1) { return tOp; } else { theNdb->releaseOperation(tOp); }//if return NULL; getNdbOp_error1: setOperationErrorCodeAbort(4000); return NULL; }//NdbTransaction::getNdbIndexOperation() NdbIndexOperation* NdbTransaction::getNdbIndexOperation(const NdbDictionary::Index * index) { if (index) { const NdbDictionary::Table *table= theNdb->theDictionary->getTable(index->getTable()); if (table) return getNdbIndexOperation(index, table); setOperationErrorCodeAbort(theNdb->theDictionary->getNdbError().code); return NULL; } setOperationErrorCodeAbort(4271); return NULL; } NdbIndexOperation* NdbTransaction::getNdbIndexOperation(const NdbDictionary::Index * index, const NdbDictionary::Table * table) { if (index && table) return getNdbIndexOperation(& NdbIndexImpl::getImpl(*index), & NdbTableImpl::getImpl(*table)); setOperationErrorCodeAbort(4271); return NULL; }//NdbTransaction::getNdbIndexOperation() /******************************************************************************* int receiveDIHNDBTAMPER(NdbApiSignal* aSignal) Return Value: Return 0 : receiveDIHNDBTAMPER was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: Sets theRestartGCI in the NDB object. *******************************************************************************/ int NdbTransaction::receiveDIHNDBTAMPER(NdbApiSignal* aSignal) { if (theStatus != Connecting) { return -1; } else { theNdb->RestartGCI((Uint32)aSignal->readData(2)); theStatus = Connected; }//if return 0; }//NdbTransaction::receiveDIHNDBTAMPER() /******************************************************************************* int receiveTCSEIZECONF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCSEIZECONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: Sets TC Connect pointer at reception of TCSEIZECONF. *******************************************************************************/ int NdbTransaction::receiveTCSEIZECONF(NdbApiSignal* aSignal) { if (theStatus != Connecting) { return -1; } else { theTCConPtr = (Uint32)aSignal->readData(2); theStatus = Connected; } return 0; }//NdbTransaction::receiveTCSEIZECONF() /******************************************************************************* int receiveTCSEIZEREF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCSEIZEREF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: Sets TC Connect pointer. *******************************************************************************/ int NdbTransaction::receiveTCSEIZEREF(NdbApiSignal* aSignal) { DBUG_ENTER("NdbTransaction::receiveTCSEIZEREF"); if (theStatus != Connecting) { DBUG_RETURN(-1); } else { theStatus = ConnectFailure; theNdb->theError.code = aSignal->readData(2); DBUG_PRINT("info",("error code %d, %s", theNdb->getNdbError().code, theNdb->getNdbError().message)); DBUG_RETURN(0); } }//NdbTransaction::receiveTCSEIZEREF() /******************************************************************************* int receiveTCRELEASECONF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCRELEASECONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: DisConnect TC Connect pointer to NDBAPI. *******************************************************************************/ int NdbTransaction::receiveTCRELEASECONF(NdbApiSignal* aSignal) { if (theStatus != DisConnecting) { return -1; } else { theStatus = NotConnected; } return 0; }//NdbTransaction::receiveTCRELEASECONF() /******************************************************************************* int receiveTCRELEASEREF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCRELEASEREF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: DisConnect TC Connect pointer to NDBAPI Failure. *******************************************************************************/ int NdbTransaction::receiveTCRELEASEREF(NdbApiSignal* aSignal) { if (theStatus != DisConnecting) { return -1; } else { theStatus = ConnectFailure; theNdb->theError.code = aSignal->readData(2); return 0; }//if }//NdbTransaction::receiveTCRELEASEREF() /****************************************************************************** int receiveTC_COMMITCONF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTC_COMMITCONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: ******************************************************************************/ int NdbTransaction::receiveTC_COMMITCONF(const TcCommitConf * commitConf) { if(checkState_TransId(&commitConf->transId1)){ theCommitStatus = Committed; theCompletionStatus = CompletedSuccess; theGlobalCheckpointId = commitConf->gci; // theGlobalCheckpointId == 0 if NoOp transaction if (theGlobalCheckpointId) *p_latest_trans_gci = theGlobalCheckpointId; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTC_COMMITCONF() /****************************************************************************** int receiveTC_COMMITREF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTC_COMMITREF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: ******************************************************************************/ int NdbTransaction::receiveTC_COMMITREF(NdbApiSignal* aSignal) { const TcCommitRef * ref = CAST_CONSTPTR(TcCommitRef, aSignal->getDataPtr()); if(checkState_TransId(&ref->transId1)){ setOperationErrorCodeAbort(ref->errorCode); theCommitStatus = Aborted; theCompletionStatus = CompletedFailure; theReturnStatus = ReturnFailure; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTC_COMMITREF() /****************************************************************************** int receiveTCROLLBACKCONF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCROLLBACKCONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: ******************************************************************************/ int NdbTransaction::receiveTCROLLBACKCONF(NdbApiSignal* aSignal) { if(checkState_TransId(aSignal->getDataPtr() + 1)){ theCommitStatus = Aborted; theCompletionStatus = CompletedSuccess; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCROLLBACKCONF() /******************************************************************************* int receiveTCROLLBACKREF(NdbApiSignal* aSignal); Return Value: Return 0 : receiveTCROLLBACKREF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: *******************************************************************************/ int NdbTransaction::receiveTCROLLBACKREF(NdbApiSignal* aSignal) { if(checkState_TransId(aSignal->getDataPtr() + 1)){ setOperationErrorCodeAbort(aSignal->readData(4)); theCommitStatus = Aborted; theCompletionStatus = CompletedFailure; theReturnStatus = ReturnFailure; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCROLLBACKREF() /***************************************************************************** int receiveTCROLLBACKREP( NdbApiSignal* aSignal) Return Value: Return 0 : send was succesful. Return -1: In all other case. Parameters: aSignal: the signal object that contains the TCROLLBACKREP signal from TC. Remark: Handles the reception of the ROLLBACKREP signal. *****************************************************************************/ int NdbTransaction::receiveTCROLLBACKREP( NdbApiSignal* aSignal) { /**************************************************************************** Check that we are expecting signals from this transaction and that it doesn't belong to a transaction already completed. Simply ignore messages from other transactions. ****************************************************************************/ if(checkState_TransId(aSignal->getDataPtr() + 1)){ theError.code = aSignal->readData(4);// Override any previous errors /**********************************************************************/ /* A serious error has occured. This could be due to deadlock or */ /* lack of resources or simply a programming error in NDB. This */ /* transaction will be aborted. Actually it has already been */ /* and we only need to report completion and return with the */ /* error code to the application. */ /**********************************************************************/ theCompletionStatus = CompletedFailure; theCommitStatus = Aborted; theReturnStatus = ReturnFailure; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCROLLBACKREP() /******************************************************************************* int receiveTCKEYCONF(NdbApiSignal* aSignal, Uint32 long_short_ind); Return Value: Return 0 : receiveTCKEYCONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: *******************************************************************************/ int NdbTransaction::receiveTCKEYCONF(const TcKeyConf * keyConf, Uint32 aDataLength) { NdbReceiver* tOp; const Uint32 tTemp = keyConf->confInfo; /*************************************************************************** Check that we are expecting signals from this transaction and that it doesn't belong to a transaction already completed. Simply ignore messages from other transactions. ***************************************************************************/ if(checkState_TransId(&keyConf->transId1)){ const Uint32 tNoOfOperations = TcKeyConf::getNoOfOperations(tTemp); const Uint32 tCommitFlag = TcKeyConf::getCommitFlag(tTemp); const Uint32* tPtr = (Uint32 *)&keyConf->operations[0]; Uint32 tNoComp = theNoOfOpCompleted; for (Uint32 i = 0; i < tNoOfOperations ; i++) { tOp = theNdb->void2rec(theNdb->int2void(*tPtr++)); const Uint32 tAttrInfoLen = *tPtr++; if (tOp && tOp->checkMagicNumber()) { Uint32 done = tOp->execTCOPCONF(tAttrInfoLen); if(tAttrInfoLen > TcKeyConf::SimpleReadBit){ Uint32 node = tAttrInfoLen & (~TcKeyConf::SimpleReadBit); NdbNodeBitmask::set(m_db_nodes, node); if(NdbNodeBitmask::get(m_failed_db_nodes, node) && !done) { done = 1; tOp->setErrorCode(4119); theCompletionStatus = CompletedFailure; theReturnStatus = NdbTransaction::ReturnFailure; } } tNoComp += done; } else { return -1; }//if }//for Uint32 tNoSent = theNoOfOpSent; theNoOfOpCompleted = tNoComp; Uint32 tGCI = keyConf->gci; if (tCommitFlag == 1) { theCommitStatus = Committed; theGlobalCheckpointId = tGCI; if (tGCI) // Read(dirty) only transaction doesnt get GCI { *p_latest_trans_gci = tGCI; } } else if ((tNoComp >= tNoSent) && (theLastExecOpInList->theCommitIndicator == 1)){ if (m_abortOption == AO_IgnoreError && theError.code != 0){ /** * There's always a TCKEYCONF when using IgnoreError */ return -1; } /**********************************************************************/ // We sent the transaction with Commit flag set and received a CONF with // no Commit flag set. This is clearly an anomaly. /**********************************************************************/ theError.code = 4011; theCompletionStatus = CompletedFailure; theReturnStatus = NdbTransaction::ReturnFailure; theCommitStatus = Aborted; return 0; }//if if (tNoComp >= tNoSent) { return 0; // No more operations to wait for }//if // Not completed the reception yet. } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCKEYCONF() /***************************************************************************** int receiveTCKEY_FAILCONF( NdbApiSignal* aSignal) Return Value: Return 0 : receive was completed. Return -1: In all other case. Parameters: aSignal: the signal object that contains the TCKEY_FAILCONF signal from TC. Remark: Handles the reception of the TCKEY_FAILCONF signal. *****************************************************************************/ int NdbTransaction::receiveTCKEY_FAILCONF(const TcKeyFailConf * failConf) { NdbOperation* tOp; /* Check that we are expecting signals from this transaction and that it doesn't belong to a transaction already completed. Simply ignore messages from other transactions. */ if(checkState_TransId(&failConf->transId1)){ /* A node failure of the TC node occured. The transaction has been committed. */ theCommitStatus = Committed; tOp = theFirstExecOpInList; while (tOp != NULL) { /* * Check if the transaction expected read values... * If it did some of them might have gotten lost even if we succeeded * in committing the transaction. */ switch(tOp->theOperationType){ case NdbOperation::UpdateRequest: case NdbOperation::InsertRequest: case NdbOperation::DeleteRequest: case NdbOperation::WriteRequest: tOp = tOp->next(); break; case NdbOperation::ReadRequest: case NdbOperation::ReadExclusive: case NdbOperation::OpenScanRequest: case NdbOperation::OpenRangeScanRequest: theCompletionStatus = CompletedFailure; theReturnStatus = NdbTransaction::ReturnFailure; setOperationErrorCodeAbort(4115); tOp = NULL; break; case NdbOperation::NotDefined: case NdbOperation::NotDefined2: assert(false); break; }//if }//while theReleaseOnClose = true; return 0; } else { #ifdef VM_TRACE ndbout_c("Recevied TCKEY_FAILCONF wo/ operation"); #endif } return -1; }//NdbTransaction::receiveTCKEY_FAILCONF() /************************************************************************* int receiveTCKEY_FAILREF( NdbApiSignal* aSignal) Return Value: Return 0 : receive was completed. Return -1: In all other case. Parameters: aSignal: the signal object that contains the TCKEY_FAILREF signal from TC. Remark: Handles the reception of the TCKEY_FAILREF signal. **************************************************************************/ int NdbTransaction::receiveTCKEY_FAILREF(NdbApiSignal* aSignal) { /* Check that we are expecting signals from this transaction and that it doesn't belong to a transaction already completed. Simply ignore messages from other transactions. */ if(checkState_TransId(aSignal->getDataPtr()+1)){ /* We received an indication of that this transaction was aborted due to a node failure. */ if (theSendStatus == NdbTransaction::sendTC_ROLLBACK) { /* We were in the process of sending a rollback anyways. We will report it as a success. */ theCompletionStatus = NdbTransaction::CompletedSuccess; } else { theReturnStatus = NdbTransaction::ReturnFailure; theCompletionStatus = NdbTransaction::CompletedFailure; theError.code = 4031; }//if theReleaseOnClose = true; theCommitStatus = NdbTransaction::Aborted; return 0; } else { #ifdef VM_TRACE ndbout_c("Recevied TCKEY_FAILREF wo/ operation"); #endif } return -1; }//NdbTransaction::receiveTCKEY_FAILREF() /****************************************************************************** int receiveTCINDXCONF(NdbApiSignal* aSignal, Uint32 long_short_ind); Return Value: Return 0 : receiveTCINDXCONF was successful. Return -1: In all other case. Parameters: aSignal: The signal object pointer. Remark: ******************************************************************************/ int NdbTransaction::receiveTCINDXCONF(const TcIndxConf * indxConf, Uint32 aDataLength) { if(checkState_TransId(&indxConf->transId1)){ const Uint32 tTemp = indxConf->confInfo; const Uint32 tNoOfOperations = TcIndxConf::getNoOfOperations(tTemp); const Uint32 tCommitFlag = TcKeyConf::getCommitFlag(tTemp); const Uint32* tPtr = (Uint32 *)&indxConf->operations[0]; Uint32 tNoComp = theNoOfOpCompleted; for (Uint32 i = 0; i < tNoOfOperations ; i++) { NdbReceiver* tOp = theNdb->void2rec(theNdb->int2void(*tPtr)); tPtr++; const Uint32 tAttrInfoLen = *tPtr; tPtr++; if (tOp && tOp->checkMagicNumber()) { tNoComp += tOp->execTCOPCONF(tAttrInfoLen); } else { return -1; }//if }//for Uint32 tNoSent = theNoOfOpSent; Uint32 tGCI = indxConf->gci; theNoOfOpCompleted = tNoComp; if (tCommitFlag == 1) { theCommitStatus = Committed; theGlobalCheckpointId = tGCI; if (tGCI) // Read(dirty) only transaction doesnt get GCI { *p_latest_trans_gci = tGCI; } } else if ((tNoComp >= tNoSent) && (theLastExecOpInList->theCommitIndicator == 1)){ /**********************************************************************/ // We sent the transaction with Commit flag set and received a CONF with // no Commit flag set. This is clearly an anomaly. /**********************************************************************/ theError.code = 4011; theCompletionStatus = NdbTransaction::CompletedFailure; theCommitStatus = NdbTransaction::Aborted; theReturnStatus = NdbTransaction::ReturnFailure; return 0; }//if if (tNoComp >= tNoSent) { return 0; // No more operations to wait for }//if // Not completed the reception yet. } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCINDXCONF() /***************************************************************************** int receiveTCINDXREF( NdbApiSignal* aSignal) Return Value: Return 0 : send was succesful. Return -1: In all other case. Parameters: aSignal: the signal object that contains the TCINDXREF signal from TC. Remark: Handles the reception of the TCINDXREF signal. *****************************************************************************/ int NdbTransaction::receiveTCINDXREF( NdbApiSignal* aSignal) { if(checkState_TransId(aSignal->getDataPtr()+1)){ theError.code = aSignal->readData(4); // Override any previous errors /**********************************************************************/ /* A serious error has occured. This could be due to deadlock or */ /* lack of resources or simply a programming error in NDB. This */ /* transaction will be aborted. Actually it has already been */ /* and we only need to report completion and return with the */ /* error code to the application. */ /**********************************************************************/ theCompletionStatus = NdbTransaction::CompletedFailure; theCommitStatus = NdbTransaction::Aborted; theReturnStatus = NdbTransaction::ReturnFailure; return 0; } else { #ifdef NDB_NO_DROPPED_SIGNAL abort(); #endif } return -1; }//NdbTransaction::receiveTCINDXREF() /******************************************************************************* int OpCompletedFailure(); Return Value: Return 0 : OpCompleteSuccess was successful. Return -1: In all other case. Parameters: aErrorCode: The error code. Remark: An operation was completed with failure. *******************************************************************************/ int NdbTransaction::OpCompleteFailure(Uint8 abortOption, bool setFailure) { Uint32 tNoComp = theNoOfOpCompleted; Uint32 tNoSent = theNoOfOpSent; if (setFailure) theCompletionStatus = NdbTransaction::CompletedFailure; tNoComp++; theNoOfOpCompleted = tNoComp; if (tNoComp == tNoSent) { //------------------------------------------------------------------------ //If the transaction consists of only simple reads we can set //Commit state Aborted. Otherwise this simple operation cannot //decide the success of the whole transaction since a simple //operation is not really part of that transaction. //------------------------------------------------------------------------ if (abortOption == AO_IgnoreError){ /** * There's always a TCKEYCONF when using IgnoreError */ return -1; } return 0; // Last operation received } else if (tNoComp > tNoSent) { setOperationErrorCodeAbort(4113); // Too many operations, // stop waiting for more return 0; } else { return -1; // Continue waiting for more signals }//if }//NdbTransaction::OpCompleteFailure() /****************************************************************************** int OpCompleteSuccess(); Return Value: Return 0 : OpCompleteSuccess was successful. Return -1: In all other case. Remark: An operation was completed with success. *******************************************************************************/ int NdbTransaction::OpCompleteSuccess() { Uint32 tNoComp = theNoOfOpCompleted; Uint32 tNoSent = theNoOfOpSent; tNoComp++; theNoOfOpCompleted = tNoComp; if (tNoComp == tNoSent) { // Last operation completed return 0; } else if (tNoComp < tNoSent) { return -1; // Continue waiting for more signals } else { setOperationErrorCodeAbort(4113); // Too many operations, // stop waiting for more theCompletionStatus = NdbTransaction::CompletedFailure; theReturnStatus = NdbTransaction::ReturnFailure; return 0; }//if }//NdbTransaction::OpCompleteSuccess() /****************************************************************************** int getGCI(); Remark: Get global checkpoint identity of the transaction *******************************************************************************/ int NdbTransaction::getGCI() { if (theCommitStatus == NdbTransaction::Committed) { return theGlobalCheckpointId; }//if return 0; }//NdbTransaction::getGCI() /******************************************************************************* Uint64 getTransactionId(void); Remark: Get the transaction identity. *******************************************************************************/ Uint64 NdbTransaction::getTransactionId() { return theTransactionId; }//NdbTransaction::getTransactionId() NdbTransaction::CommitStatusType NdbTransaction::commitStatus() { return theCommitStatus; }//NdbTransaction::commitStatus() int NdbTransaction::getNdbErrorLine() { return theErrorLine; } NdbOperation* NdbTransaction::getNdbErrorOperation() { return theErrorOperation; }//NdbTransaction::getNdbErrorOperation() const NdbOperation * NdbTransaction::getNextCompletedOperation(const NdbOperation * current) const { if(current == 0) return theCompletedFirstOp; return current->theNext; } #ifdef VM_TRACE #define CASE(x) case x: ndbout << " " << #x; break void NdbTransaction::printState() { ndbout << "con=" << hex << this << dec; ndbout << " node=" << getConnectedNodeId(); switch (theStatus) { CASE(NotConnected); CASE(Connecting); CASE(Connected); CASE(DisConnecting); CASE(ConnectFailure); default: ndbout << (Uint32) theStatus; } switch (theListState) { CASE(NotInList); CASE(InPreparedList); CASE(InSendList); CASE(InCompletedList); default: ndbout << (Uint32) theListState; } switch (theSendStatus) { CASE(NotInit); CASE(InitState); CASE(sendOperations); CASE(sendCompleted); CASE(sendCOMMITstate); CASE(sendABORT); CASE(sendABORTfail); CASE(sendTC_ROLLBACK); CASE(sendTC_COMMIT); CASE(sendTC_OP); default: ndbout << (Uint32) theSendStatus; } switch (theCommitStatus) { CASE(NotStarted); CASE(Started); CASE(Committed); CASE(Aborted); CASE(NeedAbort); default: ndbout << (Uint32) theCommitStatus; } switch (theCompletionStatus) { CASE(NotCompleted); CASE(CompletedSuccess); CASE(CompletedFailure); CASE(DefinitionFailure); default: ndbout << (Uint32) theCompletionStatus; } ndbout << endl; } #undef CASE #endif int NdbTransaction::report_node_failure(Uint32 id){ NdbNodeBitmask::set(m_failed_db_nodes, id); if(!NdbNodeBitmask::get(m_db_nodes, id)) { return 0; } /** * Arrived * TCKEYCONF TRANSIDAI * 1) - - * 2) - X * 3) X - * 4) X X */ NdbOperation* tmp = theFirstExecOpInList; const Uint32 len = TcKeyConf::SimpleReadBit | id; Uint32 tNoComp = theNoOfOpCompleted; Uint32 tNoSent = theNoOfOpSent; Uint32 count = 0; while(tmp != 0) { if(tmp->theReceiver.m_expected_result_length == len && tmp->theReceiver.m_received_result_length == 0) { count++; tmp->theError.code = 4119; } tmp = tmp->next(); } tNoComp += count; theNoOfOpCompleted = tNoComp; if(count) { theReturnStatus = NdbTransaction::ReturnFailure; if(tNoComp == tNoSent) { theError.code = 4119; theCompletionStatus = NdbTransaction::CompletedFailure; return 1; } } return 0; }