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|
/* 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; version 2 of the License.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
/*****************************************************************************
Name: Ndb.cpp
******************************************************************************/
#include <ndb_global.h>
#include "NdbApiSignal.hpp"
#include "NdbImpl.hpp"
#include <NdbOperation.hpp>
#include <NdbTransaction.hpp>
#include <NdbEventOperation.hpp>
#include <NdbEventOperationImpl.hpp>
#include <NdbRecAttr.hpp>
#include <md5_hash.hpp>
#include <NdbSleep.h>
#include <NdbOut.hpp>
#include <ndb_limits.h>
#include "API.hpp"
#include <NdbEnv.h>
#include <BaseString.hpp>
#include <NdbSqlUtil.hpp>
/****************************************************************************
void connect();
Connect to any node which has no connection at the moment.
****************************************************************************/
NdbTransaction* Ndb::doConnect(Uint32 tConNode)
{
Uint32 tNode;
Uint32 tAnyAlive = 0;
int TretCode= 0;
DBUG_ENTER("Ndb::doConnect");
if (tConNode != 0) {
TretCode = NDB_connect(tConNode);
if ((TretCode == 1) || (TretCode == 2)) {
//****************************************************************************
// We have connections now to the desired node. Return
//****************************************************************************
DBUG_RETURN(getConnectedNdbTransaction(tConNode));
} else if (TretCode < 0) {
DBUG_RETURN(NULL);
} else if (TretCode != 0) {
tAnyAlive = 1;
}//if
}//if
//****************************************************************************
// We will connect to any node. Make sure that we have connections to all
// nodes.
//****************************************************************************
if (theImpl->m_optimized_node_selection)
{
Ndb_cluster_connection_node_iter &node_iter=
theImpl->m_node_iter;
theImpl->m_ndb_cluster_connection.init_get_next_node(node_iter);
while ((tNode= theImpl->m_ndb_cluster_connection.get_next_node(node_iter)))
{
TretCode= NDB_connect(tNode);
if ((TretCode == 1) ||
(TretCode == 2))
{
//****************************************************************************
// We have connections now to the desired node. Return
//****************************************************************************
DBUG_RETURN(getConnectedNdbTransaction(tNode));
} else if (TretCode < 0) {
DBUG_RETURN(NULL);
} else if (TretCode != 0) {
tAnyAlive= 1;
}//if
DBUG_PRINT("info",("tried node %d, TretCode %d, error code %d, %s",
tNode, TretCode, getNdbError().code,
getNdbError().message));
}
}
else // just do a regular round robin
{
Uint32 tNoOfDbNodes= theImpl->theNoOfDBnodes;
Uint32 &theCurrentConnectIndex= theImpl->theCurrentConnectIndex;
UintR Tcount = 0;
do {
theCurrentConnectIndex++;
if (theCurrentConnectIndex >= tNoOfDbNodes)
theCurrentConnectIndex = 0;
Tcount++;
tNode= theImpl->theDBnodes[theCurrentConnectIndex];
TretCode= NDB_connect(tNode);
if ((TretCode == 1) ||
(TretCode == 2))
{
//****************************************************************************
// We have connections now to the desired node. Return
//****************************************************************************
DBUG_RETURN(getConnectedNdbTransaction(tNode));
} else if (TretCode < 0) {
DBUG_RETURN(NULL);
} else if (TretCode != 0) {
tAnyAlive= 1;
}//if
DBUG_PRINT("info",("tried node %d TretCode %d", tNode, TretCode));
} while (Tcount < tNoOfDbNodes);
}
//****************************************************************************
// We were unable to find a free connection. If no node alive we will report
// error code for cluster failure otherwise connection failure.
//****************************************************************************
if (tAnyAlive == 1) {
#ifdef VM_TRACE
ndbout << "TretCode = " << TretCode << endl;
#endif
theError.code = 4006;
} else {
theError.code = 4009;
}//if
DBUG_RETURN(NULL);
}
int
Ndb::NDB_connect(Uint32 tNode)
{
//****************************************************************************
// We will perform seize of a transaction record in DBTC in the specified node.
//***************************************************************************
int tReturnCode;
TransporterFacade *tp = theImpl->m_transporter_facade;
DBUG_ENTER("Ndb::NDB_connect");
bool nodeAvail = tp->get_node_alive(tNode);
if(nodeAvail == false){
DBUG_RETURN(0);
}
NdbTransaction * tConArray = theConnectionArray[tNode];
if (tConArray != NULL) {
DBUG_RETURN(2);
}
NdbTransaction * tNdbCon = getNdbCon(); // Get free connection object.
if (tNdbCon == NULL) {
DBUG_RETURN(4);
}//if
NdbApiSignal* tSignal = getSignal(); // Get signal object
if (tSignal == NULL) {
releaseNdbCon(tNdbCon);
DBUG_RETURN(4);
}//if
if (tSignal->setSignal(GSN_TCSEIZEREQ) == -1) {
releaseNdbCon(tNdbCon);
releaseSignal(tSignal);
DBUG_RETURN(4);
}//if
tSignal->setData(tNdbCon->ptr2int(), 1);
//************************************************
// Set connection pointer as NdbTransaction object
//************************************************
tSignal->setData(theMyRef, 2); // Set my block reference
tNdbCon->Status(NdbTransaction::Connecting); // Set status to connecting
Uint32 nodeSequence;
tReturnCode= sendRecSignal(tNode, WAIT_TC_SEIZE, tSignal,
0, &nodeSequence);
releaseSignal(tSignal);
if ((tReturnCode == 0) && (tNdbCon->Status() == NdbTransaction::Connected)) {
//************************************************
// Send and receive was successful
//************************************************
NdbTransaction* tPrevFirst = theConnectionArray[tNode];
tNdbCon->setConnectedNodeId(tNode, nodeSequence);
tNdbCon->setMyBlockReference(theMyRef);
theConnectionArray[tNode] = tNdbCon;
tNdbCon->theNext = tPrevFirst;
DBUG_RETURN(1);
} else {
releaseNdbCon(tNdbCon);
//****************************************************************************
// Unsuccessful connect is indicated by 3.
//****************************************************************************
DBUG_PRINT("info",
("unsuccessful connect tReturnCode %d, tNdbCon->Status() %d",
tReturnCode, tNdbCon->Status()));
if (theError.code == 299 || // single user mode
theError.code == 281 ) // cluster shutdown in progress
{
// no need to retry with other node
DBUG_RETURN(-1);
}
DBUG_RETURN(3);
}//if
}//Ndb::NDB_connect()
NdbTransaction *
Ndb::getConnectedNdbTransaction(Uint32 nodeId){
NdbTransaction* next = theConnectionArray[nodeId];
theConnectionArray[nodeId] = next->theNext;
next->theNext = NULL;
return next;
}//Ndb::getConnectedNdbTransaction()
/*****************************************************************************
disconnect();
Remark: Disconnect all connections to the database.
*****************************************************************************/
void
Ndb::doDisconnect()
{
DBUG_ENTER("Ndb::doDisconnect");
NdbTransaction* tNdbCon;
CHECK_STATUS_MACRO_VOID;
Uint32 tNoOfDbNodes = theImpl->theNoOfDBnodes;
Uint8 *theDBnodes= theImpl->theDBnodes;
DBUG_PRINT("info", ("theNoOfDBnodes=%d", tNoOfDbNodes));
UintR i;
for (i = 0; i < tNoOfDbNodes; i++) {
Uint32 tNode = theDBnodes[i];
tNdbCon = theConnectionArray[tNode];
while (tNdbCon != NULL) {
NdbTransaction* tmpNdbCon = tNdbCon;
tNdbCon = tNdbCon->theNext;
releaseConnectToNdb(tmpNdbCon);
}//while
}//for
tNdbCon = theTransactionList;
while (tNdbCon != NULL) {
NdbTransaction* tmpNdbCon = tNdbCon;
tNdbCon = tNdbCon->theNext;
releaseConnectToNdb(tmpNdbCon);
}//while
DBUG_VOID_RETURN;
}//Ndb::disconnect()
/*****************************************************************************
int waitUntilReady(int timeout);
Return Value: Returns 0 if the Ndb is ready within timeout seconds.
Returns -1 otherwise.
Remark: Waits until a node has status != 0
*****************************************************************************/
int
Ndb::waitUntilReady(int timeout)
{
DBUG_ENTER("Ndb::waitUntilReady");
int secondsCounter = 0;
int milliCounter = 0;
if (theInitState != Initialised) {
// Ndb::init is not called
theError.code = 4256;
DBUG_RETURN(-1);
}
while (theNode == 0) {
if (secondsCounter >= timeout)
{
theError.code = 4269;
DBUG_RETURN(-1);
}
NdbSleep_MilliSleep(100);
milliCounter += 100;
if (milliCounter >= 1000) {
secondsCounter++;
milliCounter = 0;
}//if
}
if (theImpl->m_ndb_cluster_connection.wait_until_ready
(timeout-secondsCounter,30) < 0)
{
theError.code = 4009;
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
}
/*****************************************************************************
NdbTransaction* startTransaction();
Return Value: Returns a pointer to a connection object.
Return NULL otherwise.
Remark: Start transaction. Synchronous.
*****************************************************************************/
int
Ndb::computeHash(Uint32 *retval,
const NdbDictionary::Table *table,
const struct Key_part_ptr * keyData,
void* buf, Uint32 bufLen)
{
Uint32 j = 0;
Uint32 sumlen = 0; // Needed len
const NdbTableImpl* impl = &NdbTableImpl::getImpl(*table);
const NdbColumnImpl* const * cols = impl->m_columns.getBase();
Uint32 len;
char* pos;
Uint32 colcnt = impl->m_columns.size();
Uint32 parts = impl->m_noOfDistributionKeys;
if (parts == 0)
{
parts = impl->m_noOfKeys;
}
for (Uint32 i = 0; i<parts; i++)
{
if (unlikely(keyData[i].ptr == 0))
goto enullptr;
}
if (unlikely(keyData[parts].ptr != 0))
goto emissingnullptr;
const NdbColumnImpl* partcols[NDB_MAX_NO_OF_ATTRIBUTES_IN_KEY];
for (Uint32 i = 0; i<colcnt && j < parts; i++)
{
if (cols[i]->m_distributionKey)
{
// wl3717_todo
// char allowed now as dist key so this case should be tested
partcols[j++] = cols[i];
}
}
for (Uint32 i = 0; i<parts; i++)
{
Uint32 lb, len;
if (unlikely(!NdbSqlUtil::get_var_length(partcols[i]->m_type,
keyData[i].ptr,
keyData[i].len,
lb, len)))
goto emalformedkey;
if (unlikely(keyData[i].len < (lb + len)))
goto elentosmall;
Uint32 maxlen = (partcols[i]->m_attrSize * partcols[i]->m_arraySize);
if (unlikely(lb == 0 && keyData[i].len != maxlen))
goto emalformedkey;
if (partcols[i]->m_cs)
{
Uint32 xmul = partcols[i]->m_cs->strxfrm_multiply;
xmul = xmul ? xmul : 1;
len = xmul * (maxlen - lb);
}
len = (lb + len + 3) & ~(Uint32)3;
sumlen += len;
}
if (buf)
{
UintPtr org = UintPtr(buf);
UintPtr use = (org + 7) & ~(UintPtr)7;
buf = (void*)use;
bufLen -= (use - org);
if (unlikely(sumlen > bufLen))
goto ebuftosmall;
}
else
{
buf = malloc(sumlen);
if (unlikely(buf == 0))
goto enomem;
bufLen = 0;
assert((UintPtr(buf) & 7) == 0);
}
pos = (char*)buf;
for (Uint32 i = 0; i<parts; i++)
{
Uint32 lb, len;
NdbSqlUtil::get_var_length(partcols[i]->m_type,
keyData[i].ptr, keyData[i].len, lb, len);
CHARSET_INFO* cs;
if ((cs = partcols[i]->m_cs))
{
Uint32 xmul = cs->strxfrm_multiply;
if (xmul == 0)
xmul = 1;
/*
* Varchar end-spaces are ignored in comparisons. To get same hash
* we blank-pad to maximum length via strnxfrm.
*/
Uint32 maxlen = (partcols[i]->m_attrSize * partcols[i]->m_arraySize);
Uint32 dstLen = xmul * (maxlen - lb);
int n = NdbSqlUtil::strnxfrm_bug7284(cs,
(unsigned char*)pos,
dstLen,
((unsigned char*)keyData[i].ptr)+lb,
len);
if (unlikely(n == -1))
goto emalformedstring;
while ((n & 3) != 0)
{
pos[n++] = 0;
}
pos += n;
}
else
{
len += lb;
memcpy(pos, keyData[i].ptr, len);
while (len & 3)
{
* (pos + len++) = 0;
}
pos += len;
}
}
len = UintPtr(pos) - UintPtr(buf);
assert((len & 3) == 0);
Uint32 values[4];
md5_hash(values, (const Uint64*)buf, len >> 2);
if (retval)
{
* retval = values[1];
}
if (bufLen == 0)
free(buf);
return 0;
enullptr:
return 4316;
emissingnullptr:
return 4276;
elentosmall:
return 4277;
ebuftosmall:
return 4278;
emalformedstring:
if (bufLen == 0)
free(buf);
return 4279;
emalformedkey:
return 4280;
enomem:
return 4000;
}
NdbTransaction*
Ndb::startTransaction(const NdbDictionary::Table *table,
const char * keyData, Uint32 keyLen)
{
DBUG_ENTER("Ndb::startTransaction");
if (theInitState == Initialised) {
theError.code = 0;
checkFailedNode();
/**
* If the user supplied key data
* We will make a qualified quess to which node is the primary for the
* the fragment and contact that node
*/
Uint32 nodeId;
NdbTableImpl* impl;
if(table != 0 && keyData != 0 && (impl= &NdbTableImpl::getImpl(*table)))
{
Uint32 hashValue;
{
Uint32 buf[4];
if((UintPtr(keyData) & 7) == 0 && (keyLen & 3) == 0)
{
md5_hash(buf, (const Uint64*)keyData, keyLen >> 2);
}
else
{
Uint64 tmp[1000];
tmp[keyLen/8] = 0;
memcpy(tmp, keyData, keyLen);
md5_hash(buf, tmp, (keyLen+3) >> 2);
}
hashValue= buf[1];
}
const Uint16 *nodes;
Uint32 cnt= impl->get_nodes(hashValue, &nodes);
if(cnt)
nodeId= nodes[0];
else
nodeId= 0;
} else {
nodeId = 0;
}//if
{
NdbTransaction *trans= startTransactionLocal(0, nodeId);
DBUG_PRINT("exit",("start trans: 0x%lx transid: 0x%lx",
(long) trans,
(long) (trans ? trans->getTransactionId() : 0)));
DBUG_RETURN(trans);
}
} else {
DBUG_RETURN(NULL);
}//if
}//Ndb::startTransaction()
/*****************************************************************************
NdbTransaction* hupp(NdbTransaction* pBuddyTrans);
Return Value: Returns a pointer to a connection object.
Connected to the same node as pBuddyTrans
and also using the same transction id
Remark: Start transaction. Synchronous.
*****************************************************************************/
NdbTransaction*
Ndb::hupp(NdbTransaction* pBuddyTrans)
{
DBUG_ENTER("Ndb::hupp");
DBUG_PRINT("enter", ("trans: 0x%lx", (long) pBuddyTrans));
Uint32 aPriority = 0;
if (pBuddyTrans == NULL){
DBUG_RETURN(startTransaction());
}
if (theInitState == Initialised) {
theError.code = 0;
checkFailedNode();
Uint32 nodeId = pBuddyTrans->getConnectedNodeId();
NdbTransaction* pCon = startTransactionLocal(aPriority, nodeId);
if(pCon == NULL)
DBUG_RETURN(NULL);
if (pCon->getConnectedNodeId() != nodeId){
// We could not get a connection to the desired node
// release the connection and return NULL
closeTransaction(pCon);
theError.code = 4006;
DBUG_RETURN(NULL);
}
pCon->setTransactionId(pBuddyTrans->getTransactionId());
pCon->setBuddyConPtr((Uint32)pBuddyTrans->getTC_ConnectPtr());
DBUG_PRINT("exit", ("hupp trans: 0x%lx transid: 0x%lx",
(long) pCon,
(long) (pCon ? pCon->getTransactionId() : 0)));
DBUG_RETURN(pCon);
} else {
DBUG_RETURN(NULL);
}//if
}//Ndb::hupp()
NdbTransaction*
Ndb::startTransactionLocal(Uint32 aPriority, Uint32 nodeId)
{
#ifdef VM_TRACE
char buf[255];
const char* val = NdbEnv_GetEnv("NDB_TRANSACTION_NODE_ID", buf, 255);
if(val != 0){
nodeId = atoi(val);
}
#endif
DBUG_ENTER("Ndb::startTransactionLocal");
DBUG_PRINT("enter", ("nodeid: %d", nodeId));
if(unlikely(theRemainingStartTransactions == 0))
{
theError.code = 4006;
DBUG_RETURN(0);
}
NdbTransaction* tConnection;
Uint64 tFirstTransId = theFirstTransId;
tConnection = doConnect(nodeId);
if (tConnection == NULL) {
DBUG_RETURN(NULL);
}//if
theRemainingStartTransactions--;
NdbTransaction* tConNext = theTransactionList;
if (tConnection->init())
{
theError.code = tConnection->theError.code;
DBUG_RETURN(NULL);
}
theTransactionList = tConnection; // into a transaction list.
tConnection->next(tConNext); // Add the active connection object
tConnection->setTransactionId(tFirstTransId);
tConnection->thePriority = aPriority;
if ((tFirstTransId & 0xFFFFFFFF) == 0xFFFFFFFF) {
//---------------------------------------------------
// Transaction id rolling round. We will start from
// consecutive identity 0 again.
//---------------------------------------------------
theFirstTransId = ((tFirstTransId >> 32) << 32);
} else {
theFirstTransId = tFirstTransId + 1;
}//if
#ifdef VM_TRACE
if (tConnection->theListState != NdbTransaction::NotInList) {
printState("startTransactionLocal %x", tConnection);
abort();
}
#endif
DBUG_RETURN(tConnection);
}//Ndb::startTransactionLocal()
/*****************************************************************************
void closeTransaction(NdbTransaction* aConnection);
Parameters: aConnection: the connection used in the transaction.
Remark: Close transaction by releasing the connection and all operations.
*****************************************************************************/
void
Ndb::closeTransaction(NdbTransaction* aConnection)
{
DBUG_ENTER("Ndb::closeTransaction");
NdbTransaction* tCon;
NdbTransaction* tPreviousCon;
if (aConnection == NULL) {
//-----------------------------------------------------
// closeTransaction called on NULL pointer, destructive
// application behaviour.
//-----------------------------------------------------
#ifdef VM_TRACE
printf("NULL into closeTransaction\n");
#endif
DBUG_VOID_RETURN;
}//if
CHECK_STATUS_MACRO_VOID;
tCon = theTransactionList;
theRemainingStartTransactions++;
DBUG_PRINT("info",("close trans: 0x%lx transid: 0x%lx",
(long) aConnection,
(long) aConnection->getTransactionId()));
DBUG_PRINT("info",("magic number: 0x%x TCConPtr: 0x%x theMyRef: 0x%x 0x%x",
aConnection->theMagicNumber, aConnection->theTCConPtr,
aConnection->theMyRef, getReference()));
if (aConnection == tCon) { // Remove the active connection object
theTransactionList = tCon->next(); // from the transaction list.
} else {
while (aConnection != tCon) {
if (tCon == NULL) {
//-----------------------------------------------------
// closeTransaction called on non-existing transaction
//-----------------------------------------------------
if(aConnection->theError.code == 4008){
/**
* When a SCAN timed-out, returning the NdbTransaction leads
* to reuse. And TC crashes when the API tries to reuse it to
* something else...
*/
#ifdef VM_TRACE
printf("Scan timeout:ed NdbTransaction-> "
"not returning it-> memory leak\n");
#endif
DBUG_VOID_RETURN;
}
#ifdef VM_TRACE
printf("Non-existing transaction into closeTransaction\n");
abort();
#endif
DBUG_VOID_RETURN;
}//if
tPreviousCon = tCon;
tCon = tCon->next();
}//while
tPreviousCon->next(tCon->next());
}//if
aConnection->release();
if(aConnection->theError.code == 4008){
/**
* Something timed-out, returning the NdbTransaction leads
* to reuse. And TC crashes when the API tries to reuse it to
* something else...
*/
#ifdef VM_TRACE
printf("Con timeout:ed NdbTransaction-> not returning it-> memory leak\n");
#endif
DBUG_VOID_RETURN;
}
if (aConnection->theReleaseOnClose == false) {
/**
* Put it back in idle list for that node
*/
Uint32 nodeId = aConnection->getConnectedNodeId();
aConnection->theNext = theConnectionArray[nodeId];
theConnectionArray[nodeId] = aConnection;
DBUG_VOID_RETURN;
} else {
aConnection->theReleaseOnClose = false;
releaseNdbCon(aConnection);
}//if
DBUG_VOID_RETURN;
}//Ndb::closeTransaction()
/*****************************************************************************
int* NdbTamper(int aAction, int aNode);
Parameters: aAction Specifies what action to be taken
1: Lock global checkpointing Can only be sent to master DIH, Parameter aNode ignored.
2: UnLock global checkpointing Can only be sent to master DIH, Parameter aNode ignored.
3: Crash node
aNode Specifies which node the action will be taken
-1: Master DIH
0-16: Nodnumber
Return Value: -1 Error .
Remark: Sends a signal to DIH.
*****************************************************************************/
int
Ndb::NdbTamper(TamperType aAction, int aNode)
{
NdbTransaction* tNdbConn;
NdbApiSignal tSignal(theMyRef);
int tNode;
int tAction;
int ret_code;
#ifdef CUSTOMER_RELEASE
return -1;
#else
DBUG_ENTER("Ndb::NdbTamper");
CHECK_STATUS_MACRO;
checkFailedNode();
theRestartGCI = 0;
switch (aAction) {
// Translate enum to integer. This is done because the SCI layer
// expects integers.
case LockGlbChp:
tAction = 1;
break;
case UnlockGlbChp:
tAction = 2;
break;
case CrashNode:
tAction = 3;
break;
case ReadRestartGCI:
tAction = 4;
break;
default:
theError.code = 4102;
DBUG_RETURN(-1);
}
tNdbConn = getNdbCon(); // Get free connection object
if (tNdbConn == NULL) {
theError.code = 4000;
DBUG_RETURN(-1);
}
tSignal.setSignal(GSN_DIHNDBTAMPER);
tSignal.setData (tAction, 1);
tSignal.setData(tNdbConn->ptr2int(),2);
tSignal.setData(theMyRef,3); // Set return block reference
tNdbConn->Status(NdbTransaction::Connecting); // Set status to connecting
TransporterFacade *tp = theImpl->m_transporter_facade;
if (tAction == 3) {
tp->lock_mutex();
tp->sendSignal(&tSignal, aNode);
tp->unlock_mutex();
releaseNdbCon(tNdbConn);
} else if ( (tAction == 2) || (tAction == 1) ) {
tp->lock_mutex();
tNode = tp->get_an_alive_node();
if (tNode == 0) {
theError.code = 4002;
releaseNdbCon(tNdbConn);
DBUG_RETURN(-1);
}//if
ret_code = tp->sendSignal(&tSignal,aNode);
tp->unlock_mutex();
releaseNdbCon(tNdbConn);
DBUG_RETURN(ret_code);
} else {
do {
tp->lock_mutex();
// Start protected area
tNode = tp->get_an_alive_node();
tp->unlock_mutex();
// End protected area
if (tNode == 0) {
theError.code = 4009;
releaseNdbCon(tNdbConn);
DBUG_RETURN(-1);
}//if
ret_code = sendRecSignal(tNode, WAIT_NDB_TAMPER, &tSignal, 0);
if (ret_code == 0) {
if (tNdbConn->Status() != NdbTransaction::Connected) {
theRestartGCI = 0;
}//if
releaseNdbCon(tNdbConn);
DBUG_RETURN(theRestartGCI);
} else if ((ret_code == -5) || (ret_code == -2)) {
TRACE_DEBUG("Continue DIHNDBTAMPER when node failed/stopping");
} else {
DBUG_RETURN(-1);
}//if
} while (1);
}
DBUG_RETURN(0);
#endif
}
#if 0
/****************************************************************************
NdbSchemaCon* startSchemaTransaction();
Return Value: Returns a pointer to a schema connection object.
Return NULL otherwise.
Remark: Start schema transaction. Synchronous.
****************************************************************************/
NdbSchemaCon*
Ndb::startSchemaTransaction()
{
NdbSchemaCon* tSchemaCon;
if (theSchemaConToNdbList != NULL) {
theError.code = 4321;
return NULL;
}//if
tSchemaCon = new NdbSchemaCon(this);
if (tSchemaCon == NULL) {
theError.code = 4000;
return NULL;
}//if
theSchemaConToNdbList = tSchemaCon;
return tSchemaCon;
}
/*****************************************************************************
void closeSchemaTransaction(NdbSchemaCon* aSchemaCon);
Parameters: aSchemaCon: the schemacon used in the transaction.
Remark: Close transaction by releasing the schemacon and all schemaop.
*****************************************************************************/
void
Ndb::closeSchemaTransaction(NdbSchemaCon* aSchemaCon)
{
if (theSchemaConToNdbList != aSchemaCon) {
abort();
return;
}//if
aSchemaCon->release();
delete aSchemaCon;
theSchemaConToNdbList = NULL;
return;
}//Ndb::closeSchemaTransaction()
#endif
/*****************************************************************************
void RestartGCI(int aRestartGCI);
Remark: Set theRestartGCI on the NDB object
*****************************************************************************/
void
Ndb::RestartGCI(int aRestartGCI)
{
theRestartGCI = aRestartGCI;
}
/****************************************************************************
int getBlockNumber(void);
Remark:
****************************************************************************/
int
Ndb::getBlockNumber()
{
return theNdbBlockNumber;
}
NdbDictionary::Dictionary *
Ndb::getDictionary() const {
return theDictionary;
}
/****************************************************************************
int getNodeId();
Remark:
****************************************************************************/
int
Ndb::getNodeId()
{
return theNode;
}
/****************************************************************************
Uint64 getAutoIncrementValue( const char* aTableName,
Uint64 & autoValue,
Uint32 cacheSize,
Uint64 step,
Uint64 start);
Parameters: aTableName (IN) : The table name.
autoValue (OUT) : Returns new autoincrement value
cacheSize (IN) : Prefetch this many values
step (IN) : Specifies the step between the
autoincrement values.
start (IN) : Start value for first value
Returns: 0 if succesful, -1 if error encountered
Remark: Returns a new autoincrement value to the application.
The autoincrement values can be increased by steps
(default 1) and a number of values can be prefetched
by specifying cacheSize (default 10).
****************************************************************************/
int
Ndb::getAutoIncrementValue(const char* aTableName,
Uint64 & autoValue, Uint32 cacheSize,
Uint64 step, Uint64 start)
{
DBUG_ENTER("Ndb::getAutoIncrementValue");
ASSERT_NOT_MYSQLD;
BaseString internal_tabname(internalize_table_name(aTableName));
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
const NdbTableImpl* table = info->m_table_impl;
TupleIdRange & range = info->m_tuple_id_range;
if (getTupleIdFromNdb(table, range, autoValue, cacheSize, step, start) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong) autoValue));
DBUG_RETURN(0);
}
int
Ndb::getAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 & autoValue, Uint32 cacheSize,
Uint64 step, Uint64 start)
{
DBUG_ENTER("Ndb::getAutoIncrementValue");
ASSERT_NOT_MYSQLD;
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
const BaseString& internal_tabname = table->m_internalName;
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
TupleIdRange & range = info->m_tuple_id_range;
if (getTupleIdFromNdb(table, range, autoValue, cacheSize, step, start) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong)autoValue));
DBUG_RETURN(0);
}
int
Ndb::getAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 & autoValue,
Uint32 cacheSize, Uint64 step, Uint64 start)
{
DBUG_ENTER("Ndb::getAutoIncrementValue");
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
if (getTupleIdFromNdb(table, range, autoValue, cacheSize, step, start) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong)autoValue));
DBUG_RETURN(0);
}
int
Ndb::getTupleIdFromNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 & tupleId,
Uint32 cacheSize, Uint64 step, Uint64 start)
{
/*
Returns a new TupleId to the application.
The TupleId comes from SYSTAB_0 where SYSKEY_0 = TableId.
It is initialized to (TableId << 48) + 1 in NdbcntrMain.cpp.
In most cases step= start= 1, in which case we get:
1,2,3,4,5,...
If step=10 and start=5 and first number is 1, we get:
5,15,25,35,...
*/
DBUG_ENTER("Ndb::getTupleIdFromNdb");
/*
Check if the next value can be taken from the pre-fetched
sequence.
*/
if (range.m_first_tuple_id != range.m_last_tuple_id &&
range.m_first_tuple_id + step <= range.m_last_tuple_id)
{
assert(range.m_first_tuple_id < range.m_last_tuple_id);
range.m_first_tuple_id += step;
tupleId = range.m_first_tuple_id;
DBUG_PRINT("info", ("Next cached value %lu", (ulong) tupleId));
}
else
{
/*
If start value is greater than step it is ignored
*/
Uint64 offset = (start > step) ? 1 : start;
/*
Pre-fetch a number of values depending on cacheSize
*/
if (cacheSize == 0)
cacheSize = 1;
DBUG_PRINT("info", ("reading %u values from database", (uint)cacheSize));
/*
* reserve next cacheSize entries in db. adds cacheSize to NEXTID
* and returns first tupleId in the new range. If tupleId's are
* incremented in steps then multiply the cacheSize with step size.
*/
Uint64 opValue = cacheSize * step;
if (opTupleIdOnNdb(table, range, opValue, 0) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("Next value fetched from database %lu", (ulong) opValue));
DBUG_PRINT("info", ("Increasing %lu by offset %lu, increment is %lu", (ulong) (ulong) opValue, (ulong) offset, (ulong) step));
Uint64 current, next;
Uint64 div = ((Uint64) (opValue + step - offset)) / step;
next = div * step + offset;
current = (next < step) ? next : next - step;
tupleId = (opValue <= current) ? current : next;
DBUG_PRINT("info", ("Returning %lu", (ulong) tupleId));
range.m_first_tuple_id = tupleId;
}
DBUG_RETURN(0);
}
/****************************************************************************
int readAutoIncrementValue( const char* aTableName,
Uint64 & autoValue);
Parameters: aTableName (IN) : The table name.
autoValue (OUT) : The current autoincrement value
Returns: 0 if succesful, -1 if error encountered
Remark: Returns the current autoincrement value to the application.
****************************************************************************/
int
Ndb::readAutoIncrementValue(const char* aTableName,
Uint64 & autoValue)
{
DBUG_ENTER("Ndb::readAutoIncrementValue");
ASSERT_NOT_MYSQLD;
BaseString internal_tabname(internalize_table_name(aTableName));
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
const NdbTableImpl* table = info->m_table_impl;
TupleIdRange & range = info->m_tuple_id_range;
if (readTupleIdFromNdb(table, range, autoValue) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong)autoValue));
DBUG_RETURN(0);
}
int
Ndb::readAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 & autoValue)
{
DBUG_ENTER("Ndb::readAutoIncrementValue");
ASSERT_NOT_MYSQLD;
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
const BaseString& internal_tabname = table->m_internalName;
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
TupleIdRange & range = info->m_tuple_id_range;
if (readTupleIdFromNdb(table, range, autoValue) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong)autoValue));
DBUG_RETURN(0);
}
int
Ndb::readAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 & autoValue)
{
DBUG_ENTER("Ndb::readAutoIncrementValue");
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
if (readTupleIdFromNdb(table, range, autoValue) == -1)
DBUG_RETURN(-1);
DBUG_PRINT("info", ("value %lu", (ulong)autoValue));
DBUG_RETURN(0);
}
int
Ndb::readTupleIdFromNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 & tupleId)
{
DBUG_ENTER("Ndb::readTupleIdFromNdb");
if (range.m_first_tuple_id != range.m_last_tuple_id)
{
assert(range.m_first_tuple_id < range.m_last_tuple_id);
tupleId = range.m_first_tuple_id + 1;
}
else
{
/*
* peek at NEXTID. does not reserve it so the value is valid
* only if no other transactions are allowed.
*/
Uint64 opValue = 0;
if (opTupleIdOnNdb(table, range, opValue, 3) == -1)
DBUG_RETURN(-1);
tupleId = opValue;
}
DBUG_RETURN(0);
}
/****************************************************************************
int setAutoIncrementValue( const char* aTableName,
Uint64 autoValue,
bool modify);
Parameters: aTableName (IN) : The table name.
autoValue (IN) : The new autoincrement value
modify (IN) : Modify existing value (not initialization)
Returns: 0 if succesful, -1 if error encountered
Remark: Sets a new autoincrement value for the application.
****************************************************************************/
int
Ndb::setAutoIncrementValue(const char* aTableName,
Uint64 autoValue, bool modify)
{
DBUG_ENTER("Ndb::setAutoIncrementValue");
ASSERT_NOT_MYSQLD;
BaseString internal_tabname(internalize_table_name(aTableName));
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
const NdbTableImpl* table = info->m_table_impl;
TupleIdRange & range = info->m_tuple_id_range;
if (setTupleIdInNdb(table, range, autoValue, modify) == -1)
DBUG_RETURN(-1);
DBUG_RETURN(0);
}
int
Ndb::setAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 autoValue, bool modify)
{
DBUG_ENTER("Ndb::setAutoIncrementValue");
ASSERT_NOT_MYSQLD;
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
const BaseString& internal_tabname = table->m_internalName;
Ndb_local_table_info *info=
theDictionary->get_local_table_info(internal_tabname);
if (info == 0) {
theError.code = theDictionary->getNdbError().code;
DBUG_RETURN(-1);
}
TupleIdRange & range = info->m_tuple_id_range;
if (setTupleIdInNdb(table, range, autoValue, modify) == -1)
DBUG_RETURN(-1);
DBUG_RETURN(0);
}
int
Ndb::setAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 autoValue,
bool modify)
{
DBUG_ENTER("Ndb::setAutoIncrementValue");
assert(aTable != 0);
const NdbTableImpl* table = & NdbTableImpl::getImpl(*aTable);
if (setTupleIdInNdb(table, range, autoValue, modify) == -1)
DBUG_RETURN(-1);
DBUG_RETURN(0);
}
int
Ndb::setTupleIdInNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 tupleId, bool modify)
{
DBUG_ENTER("Ndb::setTupleIdInNdb");
if (modify)
{
if (checkTupleIdInNdb(range, tupleId))
{
if (range.m_first_tuple_id != range.m_last_tuple_id)
{
assert(range.m_first_tuple_id < range.m_last_tuple_id);
if (tupleId <= range.m_first_tuple_id + 1)
DBUG_RETURN(0);
if (tupleId <= range.m_last_tuple_id)
{
range.m_first_tuple_id = tupleId - 1;
DBUG_PRINT("info",
("Setting next auto increment cached value to %lu",
(ulong)tupleId));
DBUG_RETURN(0);
}
}
/*
* if tupleId <= NEXTID, do nothing. otherwise update NEXTID to
* tupleId and set cached range to first = last = tupleId - 1.
*/
if (opTupleIdOnNdb(table, range, tupleId, 2) == -1)
DBUG_RETURN(-1);
}
}
else
{
/*
* update NEXTID to given value. reset cached range.
*/
if (opTupleIdOnNdb(table, range, tupleId, 1) == -1)
DBUG_RETURN(-1);
}
DBUG_RETURN(0);
}
int Ndb::initAutoIncrement()
{
if (m_sys_tab_0)
return 0;
BaseString currentDb(getDatabaseName());
BaseString currentSchema(getDatabaseSchemaName());
setDatabaseName("sys");
setDatabaseSchemaName("def");
m_sys_tab_0 = theDictionary->getTableGlobal("SYSTAB_0");
// Restore current name space
setDatabaseName(currentDb.c_str());
setDatabaseSchemaName(currentSchema.c_str());
if (m_sys_tab_0 == NULL) {
assert(theDictionary->m_error.code != 0);
theError.code = theDictionary->m_error.code;
return -1;
}
return 0;
}
bool
Ndb::checkUpdateAutoIncrementValue(TupleIdRange & range, Uint64 autoValue)
{
return(checkTupleIdInNdb(range, autoValue) != 0);
}
int
Ndb::checkTupleIdInNdb(TupleIdRange & range, Uint64 tupleId)
{
DBUG_ENTER("Ndb::checkTupleIdIndNdb");
if ((range.m_first_tuple_id != ~(Uint64)0) &&
(range.m_first_tuple_id > tupleId))
{
/*
* If we have ever cached a value in this object and this cached
* value is larger than the value we're trying to set then we
* need not check with the real value in the SYSTAB_0 table.
*/
DBUG_RETURN(0);
}
if (range.m_highest_seen > tupleId)
{
/*
* Although we've never cached any higher value we have read
* a higher value and again it isn't necessary to change the
* auto increment value.
*/
DBUG_RETURN(0);
}
DBUG_RETURN(1);
}
int
Ndb::opTupleIdOnNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 & opValue, Uint32 op)
{
DBUG_ENTER("Ndb::opTupleIdOnNdb");
Uint32 aTableId = table->m_id;
DBUG_PRINT("enter", ("table: %u value: %lu op: %u",
aTableId, (ulong) opValue, op));
NdbTransaction* tConnection = NULL;
NdbOperation* tOperation = NULL;
Uint64 tValue;
NdbRecAttr* tRecAttrResult;
CHECK_STATUS_MACRO;
if (initAutoIncrement() == -1)
goto error_handler;
tConnection = this->startTransaction();
if (tConnection == NULL)
goto error_handler;
tOperation = tConnection->getNdbOperation(m_sys_tab_0);
if (tOperation == NULL)
goto error_handler;
switch (op)
{
case 0:
tOperation->interpretedUpdateTuple();
tOperation->equal("SYSKEY_0", aTableId);
tOperation->incValue("NEXTID", opValue);
tRecAttrResult = tOperation->getValue("NEXTID");
if (tConnection->execute( NdbTransaction::Commit ) == -1 )
goto error_handler;
tValue = tRecAttrResult->u_64_value();
range.m_first_tuple_id = tValue - opValue;
range.m_last_tuple_id = tValue - 1;
opValue = range.m_first_tuple_id; // out
break;
case 1:
// create on first use
tOperation->writeTuple();
tOperation->equal("SYSKEY_0", aTableId );
tOperation->setValue("NEXTID", opValue);
if (tConnection->execute( NdbTransaction::Commit ) == -1 )
goto error_handler;
range.reset();
break;
case 2:
tOperation->interpretedUpdateTuple();
tOperation->equal("SYSKEY_0", aTableId );
tOperation->load_const_u64(1, opValue);
tOperation->read_attr("NEXTID", 2);
// compare NEXTID >= opValue
tOperation->branch_le(2, 1, 0);
tOperation->write_attr("NEXTID", 1);
tOperation->interpret_exit_ok();
tOperation->def_label(0);
tOperation->interpret_exit_ok();
tRecAttrResult = tOperation->getValue("NEXTID");
if (tConnection->execute( NdbTransaction::Commit ) == -1)
{
goto error_handler;
}
else
{
range.m_highest_seen = tRecAttrResult->u_64_value();
DBUG_PRINT("info",
("Setting next auto increment value (db) to %lu",
(ulong) opValue));
range.m_first_tuple_id = range.m_last_tuple_id = opValue - 1;
}
break;
case 3:
tOperation->readTuple();
tOperation->equal("SYSKEY_0", aTableId );
tRecAttrResult = tOperation->getValue("NEXTID");
if (tConnection->execute( NdbTransaction::Commit ) == -1 )
goto error_handler;
range.m_highest_seen = opValue = tRecAttrResult->u_64_value(); // out
break;
default:
goto error_handler;
}
this->closeTransaction(tConnection);
DBUG_RETURN(0);
error_handler:
DBUG_PRINT("error", ("ndb=%d con=%d op=%d",
theError.code,
tConnection != NULL ? tConnection->theError.code : -1,
tOperation != NULL ? tOperation->theError.code : -1));
if (theError.code == 0 && tConnection != NULL)
theError.code = tConnection->theError.code;
if (theError.code == 0 && tOperation != NULL)
theError.code = tOperation->theError.code;
DBUG_ASSERT(theError.code != 0);
NdbError savedError;
savedError = theError;
if (tConnection != NULL)
this->closeTransaction(tConnection);
theError = savedError;
DBUG_RETURN(-1);
}
Uint32
convertEndian(Uint32 Data)
{
#ifdef WORDS_BIGENDIAN
Uint32 t1, t2, t3, t4;
t4 = (Data >> 24) & 255;
t3 = (Data >> 16) & 255;
t4 = t4 + (t3 << 8);
t2 = (Data >> 8) & 255;
t4 = t4 + (t2 << 16);
t1 = Data & 255;
t4 = t4 + (t1 << 24);
return t4;
#else
return Data;
#endif
}
// <internal>
Ndb_cluster_connection &
Ndb::get_ndb_cluster_connection()
{
return theImpl->m_ndb_cluster_connection;
}
const char * Ndb::getCatalogName() const
{
return theImpl->m_dbname.c_str();
}
int Ndb::setCatalogName(const char * a_catalog_name)
{
// TODO can table_name_separator be escaped?
if (a_catalog_name && ! strchr(a_catalog_name, table_name_separator)) {
if (!theImpl->m_dbname.assign(a_catalog_name) ||
theImpl->update_prefix())
{
theError.code = 4000;
return -1;
}
}
return 0;
}
const char * Ndb::getSchemaName() const
{
return theImpl->m_schemaname.c_str();
}
int Ndb::setSchemaName(const char * a_schema_name)
{
// TODO can table_name_separator be escaped?
if (a_schema_name && ! strchr(a_schema_name, table_name_separator)) {
if (!theImpl->m_schemaname.assign(a_schema_name) ||
theImpl->update_prefix())
{
theError.code = 4000;
return -1;
}
}
return 0;
}
// </internal>
const char * Ndb::getDatabaseName() const
{
return getCatalogName();
}
int Ndb::setDatabaseName(const char * a_catalog_name)
{
return setCatalogName(a_catalog_name);
}
const char * Ndb::getDatabaseSchemaName() const
{
return getSchemaName();
}
int Ndb::setDatabaseSchemaName(const char * a_schema_name)
{
return setSchemaName(a_schema_name);
}
int Ndb::setDatabaseAndSchemaName(const NdbDictionary::Table* t)
{
const char* s0 = t->m_impl.m_internalName.c_str();
const char* s1 = strchr(s0, table_name_separator);
if (s1 && s1 != s0) {
const char* s2 = strchr(s1 + 1, table_name_separator);
if (s2 && s2 != s1 + 1) {
char buf[NAME_LEN + 1];
if (s1 - s0 <= NAME_LEN && s2 - (s1 + 1) <= NAME_LEN) {
sprintf(buf, "%.*s", (int) (s1 - s0), s0);
setDatabaseName(buf);
sprintf(buf, "%.*s", (int) (s2 - (s1 + 1)), s1 + 1);
setDatabaseSchemaName(buf);
return 0;
}
}
}
return -1;
}
bool Ndb::usingFullyQualifiedNames()
{
return fullyQualifiedNames;
}
const char *
Ndb::externalizeTableName(const char * internalTableName, bool fullyQualifiedNames)
{
if (fullyQualifiedNames) {
register const char *ptr = internalTableName;
// Skip database name
while (*ptr && *ptr++ != table_name_separator);
// Skip schema name
while (*ptr && *ptr++ != table_name_separator);
return ptr;
}
else
return internalTableName;
}
const char *
Ndb::externalizeTableName(const char * internalTableName)
{
return externalizeTableName(internalTableName, usingFullyQualifiedNames());
}
const char *
Ndb::externalizeIndexName(const char * internalIndexName, bool fullyQualifiedNames)
{
if (fullyQualifiedNames) {
register const char *ptr = internalIndexName;
// Scan name from the end
while (*ptr++); ptr--; // strend
while (ptr >= internalIndexName && *ptr != table_name_separator)
ptr--;
return ptr + 1;
}
else
return internalIndexName;
}
const char *
Ndb::externalizeIndexName(const char * internalIndexName)
{
return externalizeIndexName(internalIndexName, usingFullyQualifiedNames());
}
const BaseString
Ndb::internalize_table_name(const char *external_name) const
{
BaseString ret;
DBUG_ENTER("internalize_table_name");
DBUG_PRINT("enter", ("external_name: %s", external_name));
if (fullyQualifiedNames)
{
/* Internal table name format <db>/<schema>/<table>
<db>/<schema>/ is already available in m_prefix
so just concat the two strings
*/
#ifdef VM_TRACE
// verify that m_prefix looks like abc/def/
const char* s0 = theImpl->m_prefix.c_str();
const char* s1 = s0 ? strchr(s0, table_name_separator) : 0;
const char* s2 = s1 ? strchr(s1 + 1, table_name_separator) : 0;
assert(s1 && s1 != s0 && s2 && s2 != s1 + 1 && *(s2 + 1) == 0);
#endif
ret.assfmt("%s%s",
theImpl->m_prefix.c_str(),
external_name);
}
else
ret.assign(external_name);
DBUG_PRINT("exit", ("internal_name: %s", ret.c_str()));
DBUG_RETURN(ret);
}
const BaseString
Ndb::old_internalize_index_name(const NdbTableImpl * table,
const char * external_name) const
{
BaseString ret;
DBUG_ENTER("old_internalize_index_name");
DBUG_PRINT("enter", ("external_name: %s, table_id: %d",
external_name, table ? table->m_id : ~0));
if (!table)
{
DBUG_PRINT("error", ("!table"));
DBUG_RETURN(ret);
}
if (fullyQualifiedNames)
{
/* Internal index name format <db>/<schema>/<tabid>/<table> */
ret.assfmt("%s%d%c%s",
theImpl->m_prefix.c_str(),
table->m_id,
table_name_separator,
external_name);
}
else
ret.assign(external_name);
DBUG_PRINT("exit", ("internal_name: %s", ret.c_str()));
DBUG_RETURN(ret);
}
const BaseString
Ndb::internalize_index_name(const NdbTableImpl * table,
const char * external_name) const
{
BaseString ret;
DBUG_ENTER("internalize_index_name");
DBUG_PRINT("enter", ("external_name: %s, table_id: %d",
external_name, table ? table->m_id : ~0));
if (!table)
{
DBUG_PRINT("error", ("!table"));
DBUG_RETURN(ret);
}
if (fullyQualifiedNames)
{
/* Internal index name format sys/def/<tabid>/<table> */
ret.assfmt("%s%d%c%s",
theImpl->m_systemPrefix.c_str(),
table->m_id,
table_name_separator,
external_name);
}
else
ret.assign(external_name);
DBUG_PRINT("exit", ("internal_name: %s", ret.c_str()));
DBUG_RETURN(ret);
}
const BaseString
Ndb::getDatabaseFromInternalName(const char * internalName)
{
char * databaseName = new char[strlen(internalName) + 1];
if (databaseName == NULL)
{
errno = ENOMEM;
return BaseString(NULL);
}
strcpy(databaseName, internalName);
register char *ptr = databaseName;
/* Scan name for the first table_name_separator */
while (*ptr && *ptr != table_name_separator)
ptr++;
*ptr = '\0';
BaseString ret = BaseString(databaseName);
delete [] databaseName;
return ret;
}
const BaseString
Ndb::getSchemaFromInternalName(const char * internalName)
{
char * schemaName = new char[strlen(internalName)];
if (schemaName == NULL)
{
errno = ENOMEM;
return BaseString(NULL);
}
register const char *ptr1 = internalName;
/* Scan name for the second table_name_separator */
while (*ptr1 && *ptr1 != table_name_separator)
ptr1++;
strcpy(schemaName, ptr1 + 1);
register char *ptr = schemaName;
while (*ptr && *ptr != table_name_separator)
ptr++;
*ptr = '\0';
BaseString ret = BaseString(schemaName);
delete [] schemaName;
return ret;
}
// ToDo set event buffer size
NdbEventOperation* Ndb::createEventOperation(const char* eventName)
{
DBUG_ENTER("Ndb::createEventOperation");
NdbEventOperation* tOp= theEventBuffer->createEventOperation(eventName,
theError);
if (tOp)
{
// keep track of all event operations
NdbEventOperationImpl *op=
NdbEventBuffer::getEventOperationImpl(tOp);
op->m_next= theImpl->m_ev_op;
op->m_prev= 0;
theImpl->m_ev_op= op;
if (op->m_next)
op->m_next->m_prev= op;
}
DBUG_RETURN(tOp);
}
int Ndb::dropEventOperation(NdbEventOperation* tOp)
{
DBUG_ENTER("Ndb::dropEventOperation");
DBUG_PRINT("info", ("name: %s", tOp->getEvent()->getTable()->getName()));
// remove it from list
NdbEventOperationImpl *op=
NdbEventBuffer::getEventOperationImpl(tOp);
if (op->m_next)
op->m_next->m_prev= op->m_prev;
if (op->m_prev)
op->m_prev->m_next= op->m_next;
else
theImpl->m_ev_op= op->m_next;
DBUG_PRINT("info", ("first: %s",
theImpl->m_ev_op ? theImpl->m_ev_op->getEvent()->getTable()->getName() : "<empty>"));
assert(theImpl->m_ev_op == 0 || theImpl->m_ev_op->m_prev == 0);
theEventBuffer->dropEventOperation(tOp);
DBUG_RETURN(0);
}
NdbEventOperation *Ndb::getEventOperation(NdbEventOperation* tOp)
{
NdbEventOperationImpl *op;
if (tOp)
op= NdbEventBuffer::getEventOperationImpl(tOp)->m_next;
else
op= theImpl->m_ev_op;
if (op)
return op->m_facade;
return 0;
}
int
Ndb::pollEvents(int aMillisecondNumber, Uint64 *latestGCI)
{
return theEventBuffer->pollEvents(aMillisecondNumber, latestGCI);
}
int
Ndb::flushIncompleteEvents(Uint64 gci)
{
return theEventBuffer->flushIncompleteEvents(gci);
}
NdbEventOperation *Ndb::nextEvent()
{
return theEventBuffer->nextEvent();
}
const NdbEventOperation*
Ndb::getGCIEventOperations(Uint32* iter, Uint32* event_types)
{
NdbEventOperationImpl* op =
theEventBuffer->getGCIEventOperations(iter, event_types);
if (op != NULL)
return op->m_facade;
return NULL;
}
Uint64 Ndb::getLatestGCI()
{
return theEventBuffer->getLatestGCI();
}
void Ndb::setReportThreshEventGCISlip(unsigned thresh)
{
if (theEventBuffer->m_free_thresh != thresh)
{
theEventBuffer->m_free_thresh= thresh;
theEventBuffer->m_min_free_thresh= thresh;
theEventBuffer->m_max_free_thresh= 100;
}
}
void Ndb::setReportThreshEventFreeMem(unsigned thresh)
{
if (theEventBuffer->m_free_thresh != thresh)
{
theEventBuffer->m_free_thresh= thresh;
theEventBuffer->m_min_free_thresh= thresh;
theEventBuffer->m_max_free_thresh= 100;
}
}
#ifdef VM_TRACE
#include <NdbMutex.h>
extern NdbMutex *ndb_print_state_mutex;
static bool
checkdups(NdbTransaction** list, unsigned no)
{
for (unsigned i = 0; i < no; i++)
for (unsigned j = i + 1; j < no; j++)
if (list[i] == list[j])
return true;
return false;
}
void
Ndb::printState(const char* fmt, ...)
{
char buf[200];
va_list ap;
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
va_end(ap);
NdbMutex_Lock(ndb_print_state_mutex);
bool dups = false;
unsigned i;
ndbout << buf << " ndb=" << hex << (void*)this << endl;
for (unsigned n = 0; n < MAX_NDB_NODES; n++) {
NdbTransaction* con = theConnectionArray[n];
if (con != 0) {
ndbout << "conn " << n << ":" << endl;
while (con != 0) {
con->printState();
con = con->theNext;
}
}
}
ndbout << "prepared: " << theNoOfPreparedTransactions<< endl;
if (checkdups(thePreparedTransactionsArray, theNoOfPreparedTransactions)) {
ndbout << "!! DUPS !!" << endl;
dups = true;
}
for (i = 0; i < theNoOfPreparedTransactions; i++)
thePreparedTransactionsArray[i]->printState();
ndbout << "sent: " << theNoOfSentTransactions<< endl;
if (checkdups(theSentTransactionsArray, theNoOfSentTransactions)) {
ndbout << "!! DUPS !!" << endl;
dups = true;
}
for (i = 0; i < theNoOfSentTransactions; i++)
theSentTransactionsArray[i]->printState();
ndbout << "completed: " << theNoOfCompletedTransactions<< endl;
if (checkdups(theCompletedTransactionsArray, theNoOfCompletedTransactions)) {
ndbout << "!! DUPS !!" << endl;
dups = true;
}
for (i = 0; i < theNoOfCompletedTransactions; i++)
theCompletedTransactionsArray[i]->printState();
NdbMutex_Unlock(ndb_print_state_mutex);
}
#endif
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