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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 */
#define DBTUP_C
#define DBTUP_STORE_PROC_DEF_CPP
#include "Dbtup.hpp"
#include <RefConvert.hpp>
#include <ndb_limits.h>
#include <pc.hpp>
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
/* ------------ADD/DROP STORED PROCEDURE MODULE ------------------- */
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
void Dbtup::execSTORED_PROCREQ(Signal* signal)
{
OperationrecPtr regOperPtr;
TablerecPtr regTabPtr;
jamEntry();
regOperPtr.i = signal->theData[0];
c_operation_pool.getPtr(regOperPtr);
regTabPtr.i = signal->theData[1];
ptrCheckGuard(regTabPtr, cnoOfTablerec, tablerec);
Uint32 requestInfo = signal->theData[3];
TransState trans_state= get_trans_state(regOperPtr.p);
ndbrequire(trans_state == TRANS_IDLE ||
((trans_state == TRANS_ERROR_WAIT_STORED_PROCREQ) &&
(requestInfo == ZSTORED_PROCEDURE_DELETE)));
ndbrequire(regTabPtr.p->tableStatus == DEFINED);
switch (requestInfo) {
case ZSCAN_PROCEDURE:
jam();
scanProcedure(signal,
regOperPtr.p,
signal->theData[4]);
break;
case ZCOPY_PROCEDURE:
jam();
copyProcedure(signal, regTabPtr, regOperPtr.p);
break;
case ZSTORED_PROCEDURE_DELETE:
jam();
deleteScanProcedure(signal, regOperPtr.p);
break;
default:
ndbrequire(false);
}//switch
}//Dbtup::execSTORED_PROCREQ()
void Dbtup::deleteScanProcedure(Signal* signal,
Operationrec* regOperPtr)
{
StoredProcPtr storedPtr;
Uint32 storedProcId = signal->theData[4];
c_storedProcPool.getPtr(storedPtr, storedProcId);
ndbrequire(storedPtr.p->storedCode == ZSCAN_PROCEDURE);
ndbrequire(storedPtr.p->storedCounter == 0);
Uint32 firstAttrinbuf = storedPtr.p->storedLinkFirst;
storedPtr.p->storedCode = ZSTORED_PROCEDURE_FREE;
storedPtr.p->storedLinkFirst = RNIL;
storedPtr.p->storedLinkLast = RNIL;
storedPtr.p->storedProcLength = 0;
c_storedProcPool.release(storedPtr);
freeAttrinbufrec(firstAttrinbuf);
regOperPtr->currentAttrinbufLen = 0;
set_trans_state(regOperPtr, TRANS_IDLE);
signal->theData[0] = regOperPtr->userpointer;
signal->theData[1] = storedProcId;
sendSignal(DBLQH_REF, GSN_STORED_PROCCONF, signal, 2, JBB);
}//Dbtup::deleteScanProcedure()
void Dbtup::scanProcedure(Signal* signal,
Operationrec* regOperPtr,
Uint32 lenAttrInfo)
{
//--------------------------------------------------------
// We introduce the maxCheck so that there is always one
// stored procedure entry free for copy procedures. Thus
// no amount of scanning can cause problems for the node
// recovery functionality.
//--------------------------------------------------------
StoredProcPtr storedPtr;
c_storedProcPool.seize(storedPtr);
ndbrequire(storedPtr.i != RNIL);
storedPtr.p->storedCode = ZSCAN_PROCEDURE;
storedPtr.p->storedCounter = 0;
storedPtr.p->storedProcLength = lenAttrInfo;
storedPtr.p->storedLinkFirst = RNIL;
storedPtr.p->storedLinkLast = RNIL;
set_trans_state(regOperPtr, TRANS_WAIT_STORED_PROCEDURE_ATTR_INFO);
regOperPtr->attrinbufLen = lenAttrInfo;
regOperPtr->currentAttrinbufLen = 0;
regOperPtr->storedProcPtr = storedPtr.i;
if (lenAttrInfo >= ZATTR_BUFFER_SIZE) { // yes ">="
jam();
// send REF and change state to ignore the ATTRINFO to come
storedSeizeAttrinbufrecErrorLab(signal, regOperPtr, ZSTORED_TOO_MUCH_ATTRINFO_ERROR);
}
}//Dbtup::scanProcedure()
void Dbtup::copyProcedure(Signal* signal,
TablerecPtr regTabPtr,
Operationrec* regOperPtr)
{
Uint32 TnoOfAttributes = regTabPtr.p->m_no_of_attributes;
scanProcedure(signal,
regOperPtr,
TnoOfAttributes);
Uint32 length = 0;
for (Uint32 Ti = 0; Ti < TnoOfAttributes; Ti++) {
AttributeHeader::init(&signal->theData[length + 1], Ti, 0);
length++;
if (length == 24) {
jam();
ndbrequire(storedProcedureAttrInfo(signal, regOperPtr,
signal->theData+1, length, true));
length = 0;
}//if
}//for
if (length != 0) {
jam();
ndbrequire(storedProcedureAttrInfo(signal, regOperPtr,
signal->theData+1, length, true));
}//if
ndbrequire(regOperPtr->currentAttrinbufLen == 0);
}//Dbtup::copyProcedure()
bool Dbtup::storedProcedureAttrInfo(Signal* signal,
Operationrec* regOperPtr,
const Uint32 *data,
Uint32 length,
bool copyProcedure)
{
AttrbufrecPtr regAttrPtr;
Uint32 RnoFree = cnoFreeAttrbufrec;
if (ERROR_INSERTED(4004) && !copyProcedure) {
CLEAR_ERROR_INSERT_VALUE;
storedSeizeAttrinbufrecErrorLab(signal, regOperPtr, ZSTORED_SEIZE_ATTRINBUFREC_ERROR);
return false;
}//if
regOperPtr->currentAttrinbufLen += length;
ndbrequire(regOperPtr->currentAttrinbufLen <= regOperPtr->attrinbufLen);
if ((RnoFree > MIN_ATTRBUF) ||
(copyProcedure)) {
jam();
regAttrPtr.i = cfirstfreeAttrbufrec;
ptrCheckGuard(regAttrPtr, cnoOfAttrbufrec, attrbufrec);
regAttrPtr.p->attrbuf[ZBUF_DATA_LEN] = 0;
cfirstfreeAttrbufrec = regAttrPtr.p->attrbuf[ZBUF_NEXT];
cnoFreeAttrbufrec = RnoFree - 1;
regAttrPtr.p->attrbuf[ZBUF_NEXT] = RNIL;
} else {
jam();
storedSeizeAttrinbufrecErrorLab(signal, regOperPtr, ZSTORED_SEIZE_ATTRINBUFREC_ERROR);
return false;
}//if
if (regOperPtr->firstAttrinbufrec == RNIL) {
jam();
regOperPtr->firstAttrinbufrec = regAttrPtr.i;
}//if
regAttrPtr.p->attrbuf[ZBUF_NEXT] = RNIL;
if (regOperPtr->lastAttrinbufrec != RNIL) {
AttrbufrecPtr tempAttrinbufptr;
jam();
tempAttrinbufptr.i = regOperPtr->lastAttrinbufrec;
ptrCheckGuard(tempAttrinbufptr, cnoOfAttrbufrec, attrbufrec);
tempAttrinbufptr.p->attrbuf[ZBUF_NEXT] = regAttrPtr.i;
}//if
regOperPtr->lastAttrinbufrec = regAttrPtr.i;
regAttrPtr.p->attrbuf[ZBUF_DATA_LEN] = length;
MEMCOPY_NO_WORDS(®AttrPtr.p->attrbuf[0],
data,
length);
if (regOperPtr->currentAttrinbufLen < regOperPtr->attrinbufLen) {
jam();
return true;
}//if
if (ERROR_INSERTED(4005) && !copyProcedure) {
CLEAR_ERROR_INSERT_VALUE;
storedSeizeAttrinbufrecErrorLab(signal, regOperPtr, ZSTORED_SEIZE_ATTRINBUFREC_ERROR);
return false;
}//if
StoredProcPtr storedPtr;
c_storedProcPool.getPtr(storedPtr, (Uint32)regOperPtr->storedProcPtr);
ndbrequire(storedPtr.p->storedCode == ZSCAN_PROCEDURE);
regOperPtr->currentAttrinbufLen = 0;
storedPtr.p->storedLinkFirst = regOperPtr->firstAttrinbufrec;
storedPtr.p->storedLinkLast = regOperPtr->lastAttrinbufrec;
regOperPtr->firstAttrinbufrec = RNIL;
regOperPtr->lastAttrinbufrec = RNIL;
regOperPtr->m_any_value = 0;
set_trans_state(regOperPtr, TRANS_IDLE);
signal->theData[0] = regOperPtr->userpointer;
signal->theData[1] = storedPtr.i;
sendSignal(DBLQH_REF, GSN_STORED_PROCCONF, signal, 2, JBB);
return true;
}//Dbtup::storedProcedureAttrInfo()
void Dbtup::storedSeizeAttrinbufrecErrorLab(Signal* signal,
Operationrec* regOperPtr,
Uint32 errorCode)
{
StoredProcPtr storedPtr;
c_storedProcPool.getPtr(storedPtr, regOperPtr->storedProcPtr);
ndbrequire(storedPtr.p->storedCode == ZSCAN_PROCEDURE);
storedPtr.p->storedLinkFirst = regOperPtr->firstAttrinbufrec;
regOperPtr->firstAttrinbufrec = RNIL;
regOperPtr->lastAttrinbufrec = RNIL;
regOperPtr->m_any_value = 0;
set_trans_state(regOperPtr, TRANS_ERROR_WAIT_STORED_PROCREQ);
signal->theData[0] = regOperPtr->userpointer;
signal->theData[1] = errorCode;
signal->theData[2] = regOperPtr->storedProcPtr;
sendSignal(DBLQH_REF, GSN_STORED_PROCREF, signal, 3, JBB);
}//Dbtup::storedSeizeAttrinbufrecErrorLab()
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