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From:jonas Date:June 28 2006 9:32am
Subject:bk commit into 5.1 tree (jonas:1.2230)
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Below is the list of changes that have just been committed into a local
5.1 repository of jonas. When jonas does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
For information on how to access the public repository
see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet
  1.2230 06/06/28 11:32:29 jonas@stripped +1 -0
  Merge perch.ndb.mysql.com:/home/jonas/src/50-work
  into  perch.ndb.mysql.com:/home/jonas/src/51-work

  storage/ndb/src/ndbapi/NdbScanOperation.cpp
    1.85 06/06/28 11:32:25 jonas@stripped +0 -0
    Auto merged

  storage/ndb/src/ndbapi/NdbScanOperation.cpp
    1.66.6.2 06/06/28 11:32:25 jonas@stripped +0 -0
    Merge rename: ndb/src/ndbapi/NdbScanOperation.cpp -> storage/ndb/src/ndbapi/NdbScanOperation.cpp

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	jonas
# Host:	perch.ndb.mysql.com
# Root:	/home/jonas/src/51-work/RESYNC

--- 1.66.6.1/ndb/src/ndbapi/NdbScanOperation.cpp	2006-06-28 11:27:35 +02:00
+++ 1.85/storage/ndb/src/ndbapi/NdbScanOperation.cpp	2006-06-28 11:32:25 +02:00
@@ -50,6 +50,7 @@ NdbScanOperation::NdbScanOperation(Ndb* 
   m_receivers = 0;
   m_array = new Uint32[1]; // skip if on delete in fix_receivers
   theSCAN_TABREQ = 0;
+  m_executed = false;
 }
 
 NdbScanOperation::~NdbScanOperation()
@@ -111,6 +112,7 @@ NdbScanOperation::init(const NdbTableImp
   theNdbCon->theMagicNumber = 0xFE11DF;
   theNoOfTupKeyLeft = tab->m_noOfDistributionKeys;
   m_read_range_no = 0;
+  m_executed = false;
   return 0;
 }
 
@@ -161,7 +163,17 @@ NdbScanOperation::readTuples(NdbScanOper
     return -1;
   }
 
-  m_keyInfo = lockExcl ? 1 : 0;
+  m_keyInfo = ((scan_flags & SF_KeyInfo) || lockExcl) ? 1 : 0;
+  bool tupScan = (scan_flags & SF_TupScan);
+
+#if 1 // XXX temp for testing
+  { char* p = getenv("NDB_USE_TUPSCAN");
+    if (p != 0) {
+      unsigned n = atoi(p); // 0-10
+      if ((unsigned int) (::time(0) % 10) < n) tupScan = true;
+    }
+  }
+#endif
 
   bool rangeScan = false;
   if (m_accessTable->m_indexType == NdbDictionary::Index::OrderedIndex)
@@ -177,12 +189,9 @@ NdbScanOperation::readTuples(NdbScanOper
     theStatus = GetValue;
     theOperationType  = OpenRangeScanRequest;
     rangeScan = true;
-  }
-
-  bool tupScan = (scan_flags & SF_TupScan);
-  if (tupScan && rangeScan)
     tupScan = false;
-
+  }
+  
   if (rangeScan && (scan_flags & SF_OrderBy))
     parallel = fragCount;
   
@@ -202,7 +211,7 @@ NdbScanOperation::readTuples(NdbScanOper
   theSCAN_TABREQ->setSignal(GSN_SCAN_TABREQ);
   ScanTabReq * req = CAST_PTR(ScanTabReq, theSCAN_TABREQ->getDataPtrSend());
   req->apiConnectPtr = theNdbCon->theTCConPtr;
-  req->tableId = m_accessTable->m_tableId;
+  req->tableId = m_accessTable->m_id;
   req->tableSchemaVersion = m_accessTable->m_version;
   req->storedProcId = 0xFFFF;
   req->buddyConPtr = theNdbCon->theBuddyConPtr;
@@ -363,7 +372,7 @@ NdbScanOperation::getFirstATTRINFOScan()
 int
 NdbScanOperation::executeCursor(int nodeId){
   NdbTransaction * tCon = theNdbCon;
-  TransporterFacade* tp = TransporterFacade::instance();
+  TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
   Guard guard(tp->theMutexPtr);
 
   Uint32 magic = tCon->theMagicNumber;
@@ -385,6 +394,7 @@ NdbScanOperation::executeCursor(int node
     if (doSendScan(nodeId) == -1)
       return -1;
 
+    m_executed= true; // Mark operation as executed
     return 0;
   } else {
     if (!(tp->get_node_stopping(nodeId) &&
@@ -464,14 +474,25 @@ int NdbScanOperation::nextResultImpl(boo
   }
   
   Uint32 nodeId = theNdbCon->theDBnode;
-  TransporterFacade* tp = TransporterFacade::instance();
-  Guard guard(tp->theMutexPtr);
-  if(theError.code)
-    return -1;
+  TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
+  /*
+    The PollGuard has an implicit call of unlock_and_signal through the
+    ~PollGuard method. This method is called implicitly by the compiler
+    in all places where the object is out of context due to a return,
+    break, continue or simply end of statement block
+  */
+  PollGuard poll_guard(tp, &theNdb->theImpl->theWaiter,
+                       theNdb->theNdbBlockNumber);
 
-  Uint32 seq = theNdbCon->theNodeSequence;
-  if(seq == tp->getNodeSequence(nodeId) && send_next_scan(idx, false,
-							  forceSend) == 0){
+  const Uint32 seq = theNdbCon->theNodeSequence;
+
+  if(theError.code)
+  {
+    goto err4;
+  }
+  
+  if(seq == tp->getNodeSequence(nodeId) && send_next_scan(idx, false) == 0)
+  {
       
     idx = m_current_api_receiver;
     last = m_api_receivers_count;
@@ -500,10 +521,9 @@ int NdbScanOperation::nextResultImpl(boo
 	/**
 	 * No completed...
 	 */
-	theNdb->theImpl->theWaiter.m_node = nodeId;
-	theNdb->theImpl->theWaiter.m_state = WAIT_SCAN;
-	int return_code = theNdb->receiveResponse(WAITFOR_SCAN_TIMEOUT);
-	if (return_code == 0 && seq == tp->getNodeSequence(nodeId)) {
+        int ret_code= poll_guard.wait_scan(WAITFOR_SCAN_TIMEOUT, nodeId,
+                                           forceSend);
+	if (ret_code == 0 && seq == tp->getNodeSequence(nodeId)) {
 	  continue;
 	} else {
 	  idx = last;
@@ -553,6 +573,10 @@ int NdbScanOperation::nextResultImpl(boo
     if(theError.code == 0)
       setErrorCode(4028); // seq changed = Node fail
     break;
+  case -4:
+err4:
+    setErrorCode(theError.code);
+    break;
   }
     
   theNdbCon->theTransactionIsStarted = false;
@@ -562,8 +586,8 @@ int NdbScanOperation::nextResultImpl(boo
 }
 
 int
-NdbScanOperation::send_next_scan(Uint32 cnt, bool stopScanFlag,
-				 bool forceSend){  
+NdbScanOperation::send_next_scan(Uint32 cnt, bool stopScanFlag)
+{
   if(cnt > 0){
     NdbApiSignal tSignal(theNdb->theMyRef);
     tSignal.setSignal(GSN_SCAN_NEXTREQ);
@@ -598,7 +622,7 @@ NdbScanOperation::send_next_scan(Uint32 
     if(sent)
     {
       Uint32 nodeId = theNdbCon->theDBnode;
-      TransporterFacade * tp = TransporterFacade::instance();
+      TransporterFacade * tp = theNdb->theImpl->m_transporter_facade;
       if(cnt > 21){
 	tSignal.setLength(4);
 	LinearSectionPtr ptr[3];
@@ -610,9 +634,6 @@ NdbScanOperation::send_next_scan(Uint32 
 	ret = tp->sendSignal(&tSignal, nodeId);
       }
     }
-    
-    if (!ret) checkForceSend(forceSend);
-
     m_sent_receivers_count = last + sent;
     m_api_receivers_count -= cnt;
     m_current_api_receiver = 0;
@@ -622,15 +643,6 @@ NdbScanOperation::send_next_scan(Uint32 
   return 0;
 }
 
-void NdbScanOperation::checkForceSend(bool forceSend)
-{
-  if (forceSend) {
-    TransporterFacade::instance()->forceSend(theNdb->theNdbBlockNumber);
-  } else {
-    TransporterFacade::instance()->checkForceSend(theNdb->theNdbBlockNumber);
-  }//if
-}
-
 int 
 NdbScanOperation::prepareSend(Uint32  TC_ConnectPtr, Uint64  TransactionId)
 {
@@ -665,10 +677,16 @@ void NdbScanOperation::close(bool forceS
 	       m_conf_receivers_count,
 	       m_sent_receivers_count);
     
-    TransporterFacade* tp = TransporterFacade::instance();
-    Guard guard(tp->theMutexPtr);
-    close_impl(tp, forceSend);
-    
+    TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
+    /*
+      The PollGuard has an implicit call of unlock_and_signal through the
+      ~PollGuard method. This method is called implicitly by the compiler
+      in all places where the object is out of context due to a return,
+      break, continue or simply end of statement block
+    */
+    PollGuard poll_guard(tp, &theNdb->theImpl->theWaiter,
+                         theNdb->theNdbBlockNumber);
+    close_impl(tp, forceSend, &poll_guard);
   }
 
   NdbConnection* tCon = theNdbCon;
@@ -678,7 +696,7 @@ void NdbScanOperation::close(bool forceS
 
   if (releaseOp && tTransCon) {
     NdbIndexScanOperation* tOp = (NdbIndexScanOperation*)this;
-    tTransCon->releaseExecutedScanOperation(tOp);
+    tTransCon->releaseScanOperation(tOp);
   }
   
   tCon->theScanningOp = 0;
@@ -773,6 +791,7 @@ int NdbScanOperation::prepareSendScan(Ui
    */
   Uint32 reqInfo = req->requestInfo;
   ScanTabReq::setKeyinfoFlag(reqInfo, keyInfo);
+  ScanTabReq::setNoDiskFlag(reqInfo, m_no_disk_flag);
   req->requestInfo = reqInfo;
   
   for(Uint32 i = 0; i<theParallelism; i++){
@@ -823,7 +842,7 @@ NdbScanOperation::doSendScan(int aProces
   req->requestInfo = tmp;
   tSignal->setLength(ScanTabReq::StaticLength + theDistrKeyIndicator_);
 
-  TransporterFacade *tp = TransporterFacade::instance();
+  TransporterFacade *tp = theNdb->theImpl->m_transporter_facade;
   LinearSectionPtr ptr[3];
   ptr[0].p = m_prepared_receivers;
   ptr[0].sz = theParallelism;
@@ -907,13 +926,20 @@ NdbScanOperation::doSendScan(int aProces
  *     the scan process. 
  ****************************************************************************/
 int
-NdbScanOperation::getKeyFromKEYINFO20(Uint32* data, unsigned size)
+NdbScanOperation::getKeyFromKEYINFO20(Uint32* data, Uint32 & size)
 {
   NdbRecAttr * tRecAttr = m_curr_row;
   if(tRecAttr)
   {
     const Uint32 * src = (Uint32*)tRecAttr->aRef();
-    memcpy(data, src, 4*size);
+
+    assert(tRecAttr->get_size_in_bytes() > 0);
+    assert(tRecAttr->get_size_in_bytes() < 65536);
+    const Uint32 len = (tRecAttr->get_size_in_bytes() + 3)/4-1;
+
+    assert(size >= len);
+    memcpy(data, src, 4*len);
+    size = len;
     return 0;
   }
   return -1;
@@ -930,18 +956,30 @@ NdbScanOperation::takeOverScanOp(Operati
     if (newOp == NULL){
       return NULL;
     }
+    if (!m_keyInfo)
+    {
+      // Cannot take over lock if no keyinfo was requested
+      setErrorCodeAbort(4604);
+      return NULL;
+    }
     pTrans->theSimpleState = 0;
     
-    const Uint32 len = (tRecAttr->attrSize() * tRecAttr->arraySize() + 3)/4-1;
-
+    assert(tRecAttr->get_size_in_bytes() > 0);
+    assert(tRecAttr->get_size_in_bytes() < 65536);
+    const Uint32 len = (tRecAttr->get_size_in_bytes() + 3)/4-1;
+    
     newOp->theTupKeyLen = len;
     newOp->theOperationType = opType;
-    if (opType == DeleteRequest) {
-      newOp->theStatus = GetValue;  
-    } else {
-      newOp->theStatus = SetValue;  
+    switch (opType) {
+    case (ReadRequest):
+      newOp->theLockMode = theLockMode;
+      // Fall through
+    case (DeleteRequest):
+      newOp->theStatus = GetValue;
+      break;
+    default:
+      newOp->theStatus = SetValue;
     }
-    
     const Uint32 * src = (Uint32*)tRecAttr->aRef();
     const Uint32 tScanInfo = src[len] & 0x3FFFF;
     const Uint32 tTakeOverFragment = src[len] >> 20;
@@ -1027,23 +1065,23 @@ NdbIndexScanOperation::~NdbIndexScanOper
 
 int
 NdbIndexScanOperation::setBound(const char* anAttrName, int type, 
-				const void* aValue, Uint32 len)
+				const void* aValue)
 {
-  return setBound(m_accessTable->getColumn(anAttrName), type, aValue, len);
+  return setBound(m_accessTable->getColumn(anAttrName), type, aValue);
 }
 
 int
 NdbIndexScanOperation::setBound(Uint32 anAttrId, int type, 
-				const void* aValue, Uint32 len)
+				const void* aValue)
 {
-  return setBound(m_accessTable->getColumn(anAttrId), type, aValue, len);
+  return setBound(m_accessTable->getColumn(anAttrId), type, aValue);
 }
 
 int
 NdbIndexScanOperation::equal_impl(const NdbColumnImpl* anAttrObject, 
-				  const char* aValue, 
-				  Uint32 len){
-  return setBound(anAttrObject, BoundEQ, aValue, len);
+				  const char* aValue)
+{
+  return setBound(anAttrObject, BoundEQ, aValue);
 }
 
 NdbRecAttr*
@@ -1053,7 +1091,7 @@ NdbIndexScanOperation::getValue_impl(con
     return NdbScanOperation::getValue_impl(attrInfo, aValue);
   }
   
-  int id = attrInfo->m_attrId;                // In "real" table
+  int id = attrInfo->getColumnNo();                // In "real" table
   assert(m_accessTable->m_index);
   int sz = (int)m_accessTable->m_index->m_key_ids.size();
   if(id >= sz || (id = m_accessTable->m_index->m_key_ids[id]) == -1){
@@ -1090,7 +1128,7 @@ NdbIndexScanOperation::getValue_impl(con
  */
 int
 NdbIndexScanOperation::setBound(const NdbColumnImpl* tAttrInfo, 
-				int type, const void* aValue, Uint32 len)
+				int type, const void* aValue)
 {
   if (!tAttrInfo)
   {
@@ -1098,24 +1136,23 @@ NdbIndexScanOperation::setBound(const Nd
     return -1;
   }
   if (theOperationType == OpenRangeScanRequest &&
-      (0 <= type && type <= 4) &&
-      len <= 8000) {
+      (0 <= type && type <= 4)) {
     // insert bound type
     Uint32 currLen = theTotalNrOfKeyWordInSignal;
     Uint32 remaining = KeyInfo::DataLength - currLen;
-    Uint32 sizeInBytes = tAttrInfo->m_attrSize * tAttrInfo->m_arraySize;
     bool tDistrKey = tAttrInfo->m_distributionKey;
 
-    len = aValue != NULL ? sizeInBytes : 0;
-    if (len != sizeInBytes && (len != 0)) {
-      setErrorCodeAbort(4209);
-      return -1;
-    }
+    Uint32 len = 0;
+    if (aValue != NULL)
+      if (! tAttrInfo->get_var_length(aValue, len)) {
+        setErrorCodeAbort(4209);
+        return -1;
+      }
 
     // insert attribute header
     Uint32 tIndexAttrId = tAttrInfo->m_attrId;
     Uint32 sizeInWords = (len + 3) / 4;
-    AttributeHeader ah(tIndexAttrId, sizeInWords);
+    AttributeHeader ah(tIndexAttrId, sizeInWords << 2);
     const Uint32 ahValue = ah.m_value;
 
     const Uint32 align = (UintPtr(aValue) & 7);
@@ -1209,6 +1246,31 @@ error:
   return -1;
 }
 
+Uint32
+NdbIndexScanOperation::getKeyFromSCANTABREQ(Uint32* data, Uint32 size)
+{
+  DBUG_ENTER("NdbIndexScanOperation::getKeyFromSCANTABREQ");
+  assert(size >= theTotalNrOfKeyWordInSignal);
+  size = theTotalNrOfKeyWordInSignal;
+  NdbApiSignal* tSignal = theSCAN_TABREQ->next();
+  Uint32 pos = 0;
+  while (pos < size) {
+    assert(tSignal != NULL);
+    Uint32* tData = tSignal->getDataPtrSend();
+    Uint32 rem = size - pos;
+    if (rem > KeyInfo::DataLength)
+      rem = KeyInfo::DataLength;
+    Uint32 i = 0;
+    while (i < rem) {
+      data[pos + i] = tData[KeyInfo::HeaderLength + i];
+      i++;
+    }
+    pos += rem;
+  }
+  DBUG_DUMP("key", (char*)data, size << 2);
+  DBUG_RETURN(size);
+}
+
 int
 NdbIndexScanOperation::readTuples(LockMode lm,
 				  Uint32 scan_flags,
@@ -1308,10 +1370,11 @@ NdbIndexScanOperation::compare(Uint32 sk
       return (r1_null ? -1 : 1) * jdir;
     }
     const NdbColumnImpl & col = NdbColumnImpl::getImpl(* r1->m_column);
-    Uint32 len = r1->theAttrSize * r1->theArraySize;
+    Uint32 len1 = r1->get_size_in_bytes();
+    Uint32 len2 = r2->get_size_in_bytes();
     if(!r1_null){
       const NdbSqlUtil::Type& sqlType = NdbSqlUtil::getType(col.m_type);
-      int r = (*sqlType.m_cmp)(col.m_cs, d1, len, d2, len, true);
+      int r = (*sqlType.m_cmp)(col.m_cs, d1, len1, d2, len2, true);
       if(r){
 	assert(r != NdbSqlUtil::CmpUnknown);
 	return r * jdir;
@@ -1349,21 +1412,27 @@ NdbIndexScanOperation::next_result_order
   if(fetchNeeded){
     if(fetchAllowed){
       if(DEBUG_NEXT_RESULT) ndbout_c("performing fetch...");
-      TransporterFacade* tp = TransporterFacade::instance();
-      Guard guard(tp->theMutexPtr);
+      TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
+      /*
+        The PollGuard has an implicit call of unlock_and_signal through the
+        ~PollGuard method. This method is called implicitly by the compiler
+        in all places where the object is out of context due to a return,
+        break, continue or simply end of statement block
+      */
+      PollGuard poll_guard(tp, &theNdb->theImpl->theWaiter,
+                           theNdb->theNdbBlockNumber);
       if(theError.code)
 	return -1;
       Uint32 seq = theNdbCon->theNodeSequence;
       Uint32 nodeId = theNdbCon->theDBnode;
       if(seq == tp->getNodeSequence(nodeId) &&
-	 !send_next_scan_ordered(s_idx, forceSend)){
+	 !send_next_scan_ordered(s_idx)){
 	Uint32 tmp = m_sent_receivers_count;
 	s_idx = m_current_api_receiver; 
 	while(m_sent_receivers_count > 0 && !theError.code){
-	  theNdb->theImpl->theWaiter.m_node = nodeId;
-	  theNdb->theImpl->theWaiter.m_state = WAIT_SCAN;
-	  int return_code = theNdb->receiveResponse(WAITFOR_SCAN_TIMEOUT);
-	  if (return_code == 0 && seq == tp->getNodeSequence(nodeId)) {
+          int ret_code= poll_guard.wait_scan(WAITFOR_SCAN_TIMEOUT, nodeId,
+                                             forceSend);
+	  if (ret_code == 0 && seq == tp->getNodeSequence(nodeId)) {
 	    continue;
 	  }
 	  if(DEBUG_NEXT_RESULT) ndbout_c("return -1");
@@ -1450,7 +1519,8 @@ NdbIndexScanOperation::next_result_order
 }
 
 int
-NdbIndexScanOperation::send_next_scan_ordered(Uint32 idx, bool forceSend){  
+NdbIndexScanOperation::send_next_scan_ordered(Uint32 idx)
+{
   if(idx == theParallelism)
     return 0;
   
@@ -1485,15 +1555,16 @@ NdbIndexScanOperation::send_next_scan_or
   m_sent_receivers_count = last + 1;
   
   Uint32 nodeId = theNdbCon->theDBnode;
-  TransporterFacade * tp = TransporterFacade::instance();
+  TransporterFacade * tp = theNdb->theImpl->m_transporter_facade;
   tSignal.setLength(4+1);
   int ret= tp->sendSignal(&tSignal, nodeId);
-  if (!ret) checkForceSend(forceSend);
   return ret;
 }
 
 int
-NdbScanOperation::close_impl(TransporterFacade* tp, bool forceSend){
+NdbScanOperation::close_impl(TransporterFacade* tp, bool forceSend,
+                             PollGuard *poll_guard)
+{
   Uint32 seq = theNdbCon->theNodeSequence;
   Uint32 nodeId = theNdbCon->theDBnode;
   
@@ -1568,9 +1639,8 @@ NdbScanOperation::close_impl(Transporter
    */
   while(theError.code == 0 && m_sent_receivers_count)
   {
-    theNdb->theImpl->theWaiter.m_node = nodeId;
-    theNdb->theImpl->theWaiter.m_state = WAIT_SCAN;
-    int return_code = theNdb->receiveResponse(WAITFOR_SCAN_TIMEOUT);
+    int return_code= poll_guard->wait_scan(WAITFOR_SCAN_TIMEOUT, nodeId,
+                                           false);
     switch(return_code){
     case 0:
       break;
@@ -1627,7 +1697,7 @@ NdbScanOperation::close_impl(Transporter
   }
   
   // Send close scan
-  if(send_next_scan(api+conf, true, forceSend) == -1)
+  if(send_next_scan(api+conf, true) == -1)
   {
     theNdbCon->theReleaseOnClose = true;
     return -1;
@@ -1638,9 +1708,8 @@ NdbScanOperation::close_impl(Transporter
    */
   while(m_sent_receivers_count+m_api_receivers_count+m_conf_receivers_count)
   {
-    theNdb->theImpl->theWaiter.m_node = nodeId;
-    theNdb->theImpl->theWaiter.m_state = WAIT_SCAN;
-    int return_code = theNdb->receiveResponse(WAITFOR_SCAN_TIMEOUT);
+    int return_code= poll_guard->wait_scan(WAITFOR_SCAN_TIMEOUT, nodeId,
+                                           forceSend);
     switch(return_code){
     case 0:
       break;
@@ -1679,13 +1748,20 @@ int
 NdbScanOperation::restart(bool forceSend)
 {
   
-  TransporterFacade* tp = TransporterFacade::instance();
-  Guard guard(tp->theMutexPtr);
+  TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
+  /*
+    The PollGuard has an implicit call of unlock_and_signal through the
+    ~PollGuard method. This method is called implicitly by the compiler
+    in all places where the object is out of context due to a return,
+    break, continue or simply end of statement block
+  */
+  PollGuard poll_guard(tp, &theNdb->theImpl->theWaiter,
+                       theNdb->theNdbBlockNumber);
   Uint32 nodeId = theNdbCon->theDBnode;
   
   {
     int res;
-    if((res= close_impl(tp, forceSend)))
+    if((res= close_impl(tp, forceSend, &poll_guard)))
     {
       return res;
     }
@@ -1699,7 +1775,6 @@ NdbScanOperation::restart(bool forceSend
   theError.code = 0;
   if (doSendScan(nodeId) == -1)
     return -1;
-  
   return 0;
 }
 
@@ -1708,9 +1783,16 @@ NdbIndexScanOperation::reset_bounds(bool
   int res;
   
   {
-    TransporterFacade* tp = TransporterFacade::instance();
-    Guard guard(tp->theMutexPtr);
-    res= close_impl(tp, forceSend);
+    TransporterFacade* tp = theNdb->theImpl->m_transporter_facade;
+    /*
+      The PollGuard has an implicit call of unlock_and_signal through the
+      ~PollGuard method. This method is called implicitly by the compiler
+      in all places where the object is out of context due to a return,
+      break, continue or simply end of statement block
+    */
+    PollGuard poll_guard(tp, &theNdb->theImpl->theWaiter,
+                         theNdb->theNdbBlockNumber);
+    res= close_impl(tp, forceSend, &poll_guard);
   }
 
   if(!res)
Thread
bk commit into 5.1 tree (jonas:1.2230)jonas28 Jun