int
Dbtup::tuxReadPk(Uint32 fragPtrI, Uint32 pageId, Uint32 pageIndex, Uint32* dataOut, bool xfrmFlag)
{
jamEntry();
// use own variables instead of globals
FragrecordPtr fragPtr;
fragPtr.i= fragPtrI;
ptrCheckGuard(fragPtr, cnoOfFragrec, fragrecord);
TablerecPtr tablePtr;
tablePtr.i= fragPtr.p->fragTableId;
ptrCheckGuard(tablePtr, cnoOfTablerec, tablerec);
Operationrec tmpOp;
tmpOp.m_tuple_location.m_page_no= pageId;
tmpOp.m_tuple_location.m_page_idx= pageIndex;
KeyReqStruct req_struct(this);
req_struct.tablePtrP = tablePtr.p;
req_struct.fragPtrP = fragPtr.p;
PagePtr page_ptr;
Uint32* ptr= get_ptr(&page_ptr, &tmpOp.m_tuple_location, tablePtr.p);
req_struct.m_page_ptr = page_ptr;
req_struct.m_tuple_ptr = (Tuple_header*)ptr;
int ret = 0;
if (! (req_struct.m_tuple_ptr->m_header_bits & Tuple_header::FREE))
{
req_struct.check_offset[MM]= tablePtr.p->get_check_offset(MM);
req_struct.check_offset[DD]= tablePtr.p->get_check_offset(DD);
Uint32 num_attr= tablePtr.p->m_no_of_attributes;
Uint32 descr_start= tablePtr.p->tabDescriptor;
TableDescriptor *tab_descr= &tableDescriptor[descr_start];
ndbrequire(descr_start + (num_attr << ZAD_LOG_SIZE) <= cnoOfTabDescrRec);
req_struct.attr_descr= tab_descr;
if(req_struct.m_tuple_ptr->m_header_bits & Tuple_header::ALLOC)
{
Uint32 opPtrI= req_struct.m_tuple_ptr->m_operation_ptr_i;
Operationrec* opPtrP= c_operation_pool.getPtr(opPtrI);
ndbassert(!opPtrP->m_copy_tuple_location.isNull());
req_struct.m_tuple_ptr=
get_copy_tuple(&opPtrP->m_copy_tuple_location);
}
prepare_read(&req_struct, tablePtr.p, false);
const Uint32* attrIds= &tableDescriptor[tablePtr.p->readKeyArray].tabDescr;
const Uint32 numAttrs= tablePtr.p->noOfKeyAttr;
// read pk attributes from original tuple
// do it
ret = readAttributes(&req_struct,
attrIds,
numAttrs,
dataOut,
ZNIL,
xfrmFlag);
// done
if (ret >= 0) {
// remove headers
Uint32 n= 0;
Uint32 i= 0;
while (n < numAttrs) {
const AttributeHeader ah(dataOut[i]);
Uint32 size= ah.getDataSize();
ndbrequire(size != 0);
for (Uint32 j= 0; j < size; j++) {
dataOut[i + j - n]= dataOut[i + j + 1];
}
n+= 1;
i+= 1 + size;
}
ndbrequire((int)i == ret);
ret -= numAttrs;
} else {
return ret;
}
}
if (tablePtr.p->m_bits & Tablerec::TR_RowGCI)
{
dataOut[ret] = *req_struct.m_tuple_ptr->get_mm_gci(tablePtr.p);
}
else
{
dataOut[ret] = 0;
}
return ret;
}
int
Dbtup::tuxReadAttrs(EmulatedJamBuffer * jamBuf,
Uint32 fragPtrI,
Uint32 pageId,
Uint32 pageIndex,
Uint32 tupVersion,
const Uint32* attrIds,
Uint32 numAttrs,
Uint32* dataOut,
bool xfrmFlag)
{
thrjamEntry(jamBuf);
// use own variables instead of globals
FragrecordPtr fragPtr;
fragPtr.i= fragPtrI;
ptrCheckGuard(fragPtr, cnoOfFragrec, fragrecord);
TablerecPtr tablePtr;
tablePtr.i= fragPtr.p->fragTableId;
ptrCheckGuard(tablePtr, cnoOfTablerec, tablerec);
// search for tuple version if not original
Operationrec tmpOp;
KeyReqStruct req_struct(jamBuf);
req_struct.tablePtrP = tablePtr.p;
req_struct.fragPtrP = fragPtr.p;
tmpOp.m_tuple_location.m_page_no= pageId;
tmpOp.m_tuple_location.m_page_idx= pageIndex;
tmpOp.op_type = ZREAD; // valgrind
setup_fixed_tuple_ref(&req_struct, &tmpOp, tablePtr.p);
setup_fixed_part(&req_struct, &tmpOp, tablePtr.p);
Tuple_header *tuple_ptr= req_struct.m_tuple_ptr;
if (tuple_ptr->get_tuple_version() != tupVersion)
{
jam();
OperationrecPtr opPtr;
opPtr.i= tuple_ptr->m_operation_ptr_i;
Uint32 loopGuard= 0;
while (opPtr.i != RNIL) {
c_operation_pool.getPtr(opPtr);
if (opPtr.p->op_struct.bit_field.tupVersion == tupVersion) {
jam();
if (!opPtr.p->m_copy_tuple_location.isNull()) {
req_struct.m_tuple_ptr=
get_copy_tuple(&opPtr.p->m_copy_tuple_location);
}
break;
}
jam();
opPtr.i= opPtr.p->prevActiveOp;
ndbrequire(++loopGuard < (1 << ZTUP_VERSION_BITS));
}
}
// read key attributes from found tuple version
// save globals
prepare_read(&req_struct, tablePtr.p, false);
// do it
int ret = readAttributes(&req_struct,
attrIds,
numAttrs,
dataOut,
ZNIL,
xfrmFlag);
// done
return ret;
}
void
Dbtup::commit_operation(Signal* signal,
Uint32 gci_hi,
Uint32 gci_lo,
Tuple_header* tuple_ptr,
PagePtr pagePtr,
Operationrec* regOperPtr,
Fragrecord* regFragPtr,
Tablerec* regTabPtr)
{
ndbassert(regOperPtr->op_type != ZDELETE);
Uint32 lcpScan_ptr_i= regFragPtr->m_lcp_scan_op;
Uint32 save= tuple_ptr->m_operation_ptr_i;
Uint32 bits= tuple_ptr->m_header_bits;
Tuple_header *disk_ptr= 0;
Tuple_header *copy= get_copy_tuple(®OperPtr->m_copy_tuple_location);
Uint32 copy_bits= copy->m_header_bits;
Uint32 fixsize= regTabPtr->m_offsets[MM].m_fix_header_size;
Uint32 mm_vars= regTabPtr->m_attributes[MM].m_no_of_varsize;
Uint32 mm_dyns= regTabPtr->m_attributes[MM].m_no_of_dynamic;
bool update_gci_at_commit = ! regOperPtr->op_struct.bit_field.m_gci_written;
if((mm_vars+mm_dyns) == 0)
{
jam();
memcpy(tuple_ptr, copy, 4*fixsize);
disk_ptr= (Tuple_header*)(((Uint32*)copy)+fixsize);
}
else
{
jam();
/**
* Var_part_ref is only stored in *allocated* tuple
* so memcpy from copy, will over write it...
* hence subtle copyout/assign...
*/
Local_key tmp;
Var_part_ref *ref= tuple_ptr->get_var_part_ref_ptr(regTabPtr);
ref->copyout(&tmp);
memcpy(tuple_ptr, copy, 4*fixsize);
ref->assign(&tmp);
PagePtr vpagePtr;
if (copy_bits & Tuple_header::VAR_PART)
{
jam();
ndbassert(bits & Tuple_header::VAR_PART);
ndbassert(tmp.m_page_no != RNIL);
ndbassert(copy_bits & Tuple_header::COPY_TUPLE);
Uint32 *dst= get_ptr(&vpagePtr, *ref);
Var_page* vpagePtrP = (Var_page*)vpagePtr.p;
Varpart_copy*vp =(Varpart_copy*)copy->get_end_of_fix_part_ptr(regTabPtr);
/* The first word of shrunken tuple holds the lenght in words. */
Uint32 len = vp->m_len;
memcpy(dst, vp->m_data, 4*len);
if(copy_bits & Tuple_header::MM_SHRINK)
{
jam();
ndbassert(vpagePtrP->get_entry_len(tmp.m_page_idx) >= len);
if (len)
{
jam();
ndbassert(regFragPtr->m_varWordsFree >= vpagePtrP->free_space);
regFragPtr->m_varWordsFree -= vpagePtrP->free_space;
vpagePtrP->shrink_entry(tmp.m_page_idx, len);
// Adds the new free space value for the page to the fragment total.
update_free_page_list(regFragPtr, vpagePtr);
}
else
{
jam();
free_var_part(regFragPtr, vpagePtr, tmp.m_page_idx);
tmp.m_page_no = RNIL;
ref->assign(&tmp);
copy_bits &= ~(Uint32)Tuple_header::VAR_PART;
}
}
else
{
jam();
ndbassert(vpagePtrP->get_entry_len(tmp.m_page_idx) == len);
}
/**
* Find disk part after
* header + fixed MM part + length word + varsize part.
*/
disk_ptr = (Tuple_header*)(vp->m_data + len);
}
else
{
jam();
ndbassert(tmp.m_page_no == RNIL);
disk_ptr = (Tuple_header*)copy->get_end_of_fix_part_ptr(regTabPtr);
}
}
if (regTabPtr->m_no_of_disk_attributes &&
(copy_bits & Tuple_header::DISK_INLINE))
{
jam();
Local_key key;
memcpy(&key, copy->get_disk_ref_ptr(regTabPtr), sizeof(Local_key));
Uint32 logfile_group_id= regFragPtr->m_logfile_group_id;
PagePtr diskPagePtr((Tup_page*)m_pgman_ptr.p, m_pgman_ptr.i);
ndbassert(diskPagePtr.p->m_page_no == key.m_page_no);
ndbassert(diskPagePtr.p->m_file_no == key.m_file_no);
Uint32 sz, *dst;
if(copy_bits & Tuple_header::DISK_ALLOC)
{
jam();
disk_page_alloc(signal, regTabPtr, regFragPtr, &key, diskPagePtr, gci_hi);
}
if(regTabPtr->m_attributes[DD].m_no_of_varsize == 0)
{
jam();
sz= regTabPtr->m_offsets[DD].m_fix_header_size;
dst= ((Fix_page*)diskPagePtr.p)->get_ptr(key.m_page_idx, sz);
}
else
{
jam();
dst= ((Var_page*)diskPagePtr.p)->get_ptr(key.m_page_idx);
sz= ((Var_page*)diskPagePtr.p)->get_entry_len(key.m_page_idx);
}
if(! (copy_bits & Tuple_header::DISK_ALLOC))
{
jam();
disk_page_undo_update(diskPagePtr.p,
&key, dst, sz, gci_hi, logfile_group_id);
}
memcpy(dst, disk_ptr, 4*sz);
memcpy(tuple_ptr->get_disk_ref_ptr(regTabPtr), &key, sizeof(Local_key));
ndbassert(! (disk_ptr->m_header_bits & Tuple_header::FREE));
copy_bits |= Tuple_header::DISK_PART;
}
if(lcpScan_ptr_i != RNIL && (bits & Tuple_header::ALLOC))
{
jam();
ScanOpPtr scanOp;
c_scanOpPool.getPtr(scanOp, lcpScan_ptr_i);
Local_key rowid = regOperPtr->m_tuple_location;
rowid.m_page_no = pagePtr.p->frag_page_id;
if (!is_rowid_lcp_scanned(rowid, *scanOp.p))
{
jam();
copy_bits |= Tuple_header::LCP_SKIP;
}
}
Uint32 clear=
Tuple_header::ALLOC | Tuple_header::FREE | Tuple_header::COPY_TUPLE |
Tuple_header::DISK_ALLOC | Tuple_header::DISK_INLINE |
Tuple_header::MM_SHRINK | Tuple_header::MM_GROWN;
copy_bits &= ~(Uint32)clear;
tuple_ptr->m_header_bits= copy_bits;
tuple_ptr->m_operation_ptr_i= save;
if (regTabPtr->m_bits & Tablerec::TR_RowGCI &&
update_gci_at_commit)
{
jam();
* tuple_ptr->get_mm_gci(regTabPtr) = gci_hi;
if (regTabPtr->m_bits & Tablerec::TR_ExtraRowGCIBits)
{
Uint32 attrId = regTabPtr->getExtraAttrId<Tablerec::TR_ExtraRowGCIBits>();
store_extra_row_bits(attrId, regTabPtr, tuple_ptr, gci_lo,
/* truncate */true);
}
}
if (regTabPtr->m_bits & Tablerec::TR_Checksum) {
jam();
setChecksum(tuple_ptr, regTabPtr);
}
}
/* ----------------------------------------------------------------- */
void Dbtup::execTUP_COMMITREQ(Signal* signal)
{
FragrecordPtr regFragPtr;
OperationrecPtr regOperPtr;
TablerecPtr regTabPtr;
KeyReqStruct req_struct(this, KRS_COMMIT);
TransState trans_state;
Uint32 no_of_fragrec, no_of_tablerec;
TupCommitReq * const tupCommitReq= (TupCommitReq *)signal->getDataPtr();
regOperPtr.i= tupCommitReq->opPtr;
Uint32 hash_value= tupCommitReq->hashValue;
Uint32 gci_hi = tupCommitReq->gci_hi;
Uint32 gci_lo = tupCommitReq->gci_lo;
Uint32 transId1 = tupCommitReq->transId1;
Uint32 transId2 = tupCommitReq->transId2;
jamEntry();
c_operation_pool.getPtr(regOperPtr);
regFragPtr.i= regOperPtr.p->fragmentPtr;
trans_state= get_trans_state(regOperPtr.p);
no_of_fragrec= cnoOfFragrec;
ndbrequire(trans_state == TRANS_STARTED);
ptrCheckGuard(regFragPtr, no_of_fragrec, fragrecord);
no_of_tablerec= cnoOfTablerec;
regTabPtr.i= regFragPtr.p->fragTableId;
req_struct.signal= signal;
req_struct.hash_value= hash_value;
req_struct.gci_hi = gci_hi;
req_struct.gci_lo = gci_lo;
/* Put transid in req_struct, so detached triggers can access it */
req_struct.trans_id1 = transId1;
req_struct.trans_id2 = transId2;
req_struct.m_reorg = regOperPtr.p->op_struct.bit_field.m_reorg;
regOperPtr.p->m_commit_disk_callback_page = tupCommitReq->diskpage;
#ifdef VM_TRACE
if (tupCommitReq->diskpage == RNIL)
{
m_pgman_ptr.i = RNIL;
m_pgman_ptr.p = 0;
req_struct.m_disk_page_ptr.i = RNIL;
req_struct.m_disk_page_ptr.p = 0;
}
#endif
ptrCheckGuard(regTabPtr, no_of_tablerec, tablerec);
PagePtr page;
Tuple_header* tuple_ptr= (Tuple_header*)
get_ptr(&page, ®OperPtr.p->m_tuple_location, regTabPtr.p);
/**
* NOTE: This has to be run before potential time-slice when
* waiting for disk, as otherwise the "other-ops" in a multi-op
* commit might run while we're waiting for disk
*
*/
if (!regTabPtr.p->tuxCustomTriggers.isEmpty())
{
if(get_tuple_state(regOperPtr.p) == TUPLE_PREPARED)
{
jam();
OperationrecPtr loopPtr = regOperPtr;
if (unlikely(!regOperPtr.p->is_first_operation()))
{
findFirstOp(loopPtr);
}
/**
* Execute all tux triggers at first commit
* since previous tuple is otherwise removed...
*/
jam();
goto first;
while(loopPtr.i != RNIL)
{
c_operation_pool.getPtr(loopPtr);
first:
executeTuxCommitTriggers(signal,
loopPtr.p,
regFragPtr.p,
regTabPtr.p);
set_tuple_state(loopPtr.p, TUPLE_TO_BE_COMMITTED);
loopPtr.i = loopPtr.p->nextActiveOp;
}
}
}
bool get_page = false;
if(regOperPtr.p->op_struct.bit_field.m_load_diskpage_on_commit)
{
jam();
Page_cache_client::Request req;
/**
* Only last op on tuple needs "real" commit,
* hence only this one should have m_load_diskpage_on_commit
*/
ndbassert(tuple_ptr->m_operation_ptr_i == regOperPtr.i);
/**
* Check for page
*/
if(!regOperPtr.p->m_copy_tuple_location.isNull())
{
jam();
Tuple_header* tmp= get_copy_tuple(®OperPtr.p->m_copy_tuple_location);
memcpy(&req.m_page,
tmp->get_disk_ref_ptr(regTabPtr.p), sizeof(Local_key));
if (unlikely(regOperPtr.p->op_type == ZDELETE &&
tmp->m_header_bits & Tuple_header::DISK_ALLOC))
{
jam();
/**
* Insert+Delete
*/
regOperPtr.p->op_struct.bit_field.m_load_diskpage_on_commit = 0;
regOperPtr.p->op_struct.bit_field.m_wait_log_buffer = 0;
disk_page_abort_prealloc(signal, regFragPtr.p,
&req.m_page, req.m_page.m_page_idx);
D("Logfile_client - execTUP_COMMITREQ");
Logfile_client lgman(this, c_lgman, regFragPtr.p->m_logfile_group_id);
lgman.free_log_space(regOperPtr.p->m_undo_buffer_space);
goto skip_disk;
if (0) ndbout_c("insert+delete");
jamEntry();
goto skip_disk;
}
}
else
{
jam();
// initial delete
ndbassert(regOperPtr.p->op_type == ZDELETE);
memcpy(&req.m_page,
tuple_ptr->get_disk_ref_ptr(regTabPtr.p), sizeof(Local_key));
ndbassert(tuple_ptr->m_header_bits & Tuple_header::DISK_PART);
}
if (retrieve_data_page(signal, req, regOperPtr) == 0)
{
return; // Data page has not been retrieved yet.
}
get_page = true;
}
if(regOperPtr.p->op_struct.bit_field.m_wait_log_buffer)
{
jam();
/**
* Only last op on tuple needs "real" commit,
* hence only this one should have m_wait_log_buffer
*/
ndbassert(tuple_ptr->m_operation_ptr_i == regOperPtr.i);
if (retrieve_log_page(signal, regFragPtr, regOperPtr) == 0)
{
return; // Log page has not been retrieved yet.
}
}
assert(tuple_ptr);
skip_disk:
req_struct.m_tuple_ptr = tuple_ptr;
Uint32 nextOp = regOperPtr.p->nextActiveOp;
Uint32 prevOp = regOperPtr.p->prevActiveOp;
/**
* The trigger code (which is shared between detached/imediate)
* check op-list to check were to read before values from
* detached triggers should always read from original tuple value
* from before transaction start, not from any intermediate update
*
* Setting the op-list has this effect
*/
regOperPtr.p->nextActiveOp = RNIL;
regOperPtr.p->prevActiveOp = RNIL;
if(tuple_ptr->m_operation_ptr_i == regOperPtr.i)
{
jam();
/**
* Perform "real" commit
*/
Uint32 disk = regOperPtr.p->m_commit_disk_callback_page;
set_commit_change_mask_info(regTabPtr.p, &req_struct, regOperPtr.p);
checkDetachedTriggers(&req_struct, regOperPtr.p, regTabPtr.p,
disk != RNIL);
tuple_ptr->m_operation_ptr_i = RNIL;
if (regOperPtr.p->op_type == ZDELETE)
{
jam();
if (get_page)
{
ndbassert(tuple_ptr->m_header_bits & Tuple_header::DISK_PART);
}
dealloc_tuple(signal, gci_hi, gci_lo, page.p, tuple_ptr,
&req_struct, regOperPtr.p, regFragPtr.p, regTabPtr.p);
}
else if(regOperPtr.p->op_type != ZREFRESH)
{
jam();
commit_operation(signal, gci_hi, gci_lo, tuple_ptr, page,
regOperPtr.p, regFragPtr.p, regTabPtr.p);
}
else
{
jam();
commit_refresh(signal, gci_hi, gci_lo, tuple_ptr, page,
&req_struct, regOperPtr.p, regFragPtr.p, regTabPtr.p);
}
}
if (nextOp != RNIL)
{
c_operation_pool.getPtr(nextOp)->prevActiveOp = prevOp;
}
if (prevOp != RNIL)
{
c_operation_pool.getPtr(prevOp)->nextActiveOp = nextOp;
}
if(!regOperPtr.p->m_copy_tuple_location.isNull())
{
jam();
c_undo_buffer.free_copy_tuple(®OperPtr.p->m_copy_tuple_location);
}
initOpConnection(regOperPtr.p);
signal->theData[0] = 0;
}
void
Dbtup::handle_lcp_keep_commit(const Local_key* rowid,
KeyReqStruct * req_struct,
Operationrec * opPtrP,
Fragrecord * regFragPtr,
Tablerec * regTabPtr)
{
bool disk = false;
Uint32 sizes[4];
Uint32 * copytuple = get_copy_tuple_raw(&opPtrP->m_copy_tuple_location);
Tuple_header * dst = get_copy_tuple(copytuple);
Tuple_header * org = req_struct->m_tuple_ptr;
if (regTabPtr->need_expand(disk))
{
setup_fixed_tuple_ref(req_struct, opPtrP, regTabPtr);
setup_fixed_part(req_struct, opPtrP, regTabPtr);
req_struct->m_tuple_ptr = dst;
expand_tuple(req_struct, sizes, org, regTabPtr, disk);
shrink_tuple(req_struct, sizes+2, regTabPtr, disk);
}
else
{
memcpy(dst, org, 4*regTabPtr->m_offsets[MM].m_fix_header_size);
}
dst->m_header_bits |= Tuple_header::COPY_TUPLE;
/**
* Store original row-id in copytuple[0,1]
* Store next-ptr in copytuple[1,2] (set to RNIL/RNIL)
*
*/
assert(sizeof(Local_key) == 8);
memcpy(copytuple+0, rowid, sizeof(Local_key));
Local_key nil;
nil.setNull();
memcpy(copytuple+2, &nil, sizeof(nil));
/**
* Link it to list
*/
if (regFragPtr->m_lcp_keep_list_tail.isNull())
{
jam();
regFragPtr->m_lcp_keep_list_head = opPtrP->m_copy_tuple_location;
}
else
{
jam();
Uint32 * tail = get_copy_tuple_raw(®FragPtr->m_lcp_keep_list_tail);
Local_key nextptr;
memcpy(&nextptr, tail+2, sizeof(Local_key));
ndbassert(nextptr.isNull());
nextptr = opPtrP->m_copy_tuple_location;
memcpy(tail+2, &nextptr, sizeof(Local_key));
}
regFragPtr->m_lcp_keep_list_tail = opPtrP->m_copy_tuple_location;
/**
* And finally clear m_copy_tuple_location so that it won't be freed
*/
opPtrP->m_copy_tuple_location.setNull();
}
