void
Dbtux::readTablePk(const Frag& frag, TreeEnt ent, Uint32* pkData, unsigned& pkSize)
{
const Uint32 tableFragPtrI = frag.m_tupTableFragPtrI;
const TupLoc tupLoc = ent.m_tupLoc;
int ret = c_tup->tuxReadPk(tableFragPtrI, tupLoc.getPageId(), tupLoc.getPageOffset(), pkData, true);
jamEntry();
ndbrequire(ret > 0);
pkSize = ret;
}
/*
* Set handle to point to existing node.
*/
void
Dbtux::selectNode(NodeHandle& node, TupLoc loc)
{
Frag& frag = node.m_frag;
ndbrequire(loc != NullTupLoc);
Uint32 pageId = loc.getPageId();
Uint32 pageOffset = loc.getPageOffset();
Uint32* node32 = 0;
c_tup->tuxGetNode(frag.m_tupIndexFragPtrI, pageId, pageOffset, node32);
node.m_loc = loc;
node.m_node = reinterpret_cast<TreeNode*>(node32);
ndbrequire(node.m_loc != NullTupLoc && node.m_node != 0);
}
void
Dbtux::readKeyAttrs(TuxCtx& ctx, const Frag& frag, TreeEnt ent, KeyData& keyData, Uint32 count)
{
const Index& index = *c_indexPool.getPtr(frag.m_indexId);
const DescHead& descHead = getDescHead(index);
const AttributeHeader* keyAttrs = getKeyAttrs(descHead);
Uint32* const outputBuffer = ctx.c_dataBuffer;
#ifdef VM_TRACE
ndbrequire(&keyData.get_spec() == &index.m_keySpec);
ndbrequire(keyData.get_spec().validate() == 0);
ndbrequire(count <= index.m_numAttrs);
#endif
const TupLoc tupLoc = ent.m_tupLoc;
const Uint32 pageId = tupLoc.getPageId();
const Uint32 pageOffset = tupLoc.getPageOffset();
const Uint32 tupVersion = ent.m_tupVersion;
const Uint32 tableFragPtrI = frag.m_tupTableFragPtrI;
const Uint32* keyAttrs32 = (const Uint32*)&keyAttrs[0];
int ret;
ret = c_tup->tuxReadAttrs(ctx.jamBuffer, tableFragPtrI, pageId, pageOffset, tupVersion, keyAttrs32, count, outputBuffer, false);
jamEntry();
ndbrequire(ret > 0);
keyData.reset();
Uint32 len;
ret = keyData.add_poai(outputBuffer, count, &len);
ndbrequire(ret == 0);
ret = keyData.finalize();
ndbrequire(ret == 0);
#ifdef VM_TRACE
if (debugFlags & (DebugMaint | DebugScan)) {
debugOut << "readKeyAttrs: ";
debugOut << " ent:" << ent << " count:" << count;
debugOut << " data:" << keyData.print(ctx.c_debugBuffer, DebugBufferBytes);
debugOut << endl;
}
#endif
}
