74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
|
/*
|
||
|
|
//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
|
||
|
|
//paragraph [10] Footnote: [{\footnote{] [}}]
|
||
|
|
//[TOC] [\tableofcontents]
|
||
|
|
|
||
|
|
[1] Implementation of the treeheight Operator
|
||
|
|
|
||
|
|
[TOC]
|
||
|
|
|
||
|
|
0 Overview
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "op_set_maxkeysize.h"
|
||
|
|
|
||
|
|
#include "ListUtils.h"
|
||
|
|
#include "QueryProcessor.h"
|
||
|
|
#include "BTree2.h"
|
||
|
|
|
||
|
|
#include <limits>
|
||
|
|
|
||
|
|
extern NestedList* nl;
|
||
|
|
extern QueryProcessor *qp;
|
||
|
|
|
||
|
|
namespace BTree2Algebra {
|
||
|
|
namespace Operators {
|
||
|
|
|
||
|
|
ListExpr set_maxkeysize::TypeMapping( ListExpr args){
|
||
|
|
if(nl->ListLength(args) != 1){
|
||
|
|
return listutils::typeError("Operator expects one argument");
|
||
|
|
}
|
||
|
|
ListExpr second = nl->First(args);
|
||
|
|
if(!nl->IsEqual(second, CcInt::BasicType())){
|
||
|
|
return listutils::typeError( "Second argument must be of type int.");
|
||
|
|
}
|
||
|
|
return (nl->SymbolAtom(CcBool::BasicType()));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int
|
||
|
|
set_maxkeysize::ValueMapping(Word* args, Word& result, int message,
|
||
|
|
Word& local, Supplier s)
|
||
|
|
{
|
||
|
|
result = qp->ResultStorage(s);
|
||
|
|
unsigned bc = ((CcInt*)args[0].addr)->GetIntval();
|
||
|
|
CcBool *res = (CcBool*) result.addr;
|
||
|
|
bool sc = BTree2::SetDefaultMaxKeysize(bc);
|
||
|
|
res->Set( true, sc );
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
struct setMaxKeysizeInfo : OperatorInfo {
|
||
|
|
|
||
|
|
setMaxKeysizeInfo() : OperatorInfo()
|
||
|
|
{
|
||
|
|
name = "set_maxkeysize";
|
||
|
|
signature = "int -> bool";
|
||
|
|
syntax = "set_maxkeysize ( _ )";
|
||
|
|
meaning = "Sets the max. keysize of new btree2s.";
|
||
|
|
example = "query set_maxkeysize (16)";
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
Operator set_maxkeysize::def( setMaxKeysizeInfo(),
|
||
|
|
set_maxkeysize::ValueMapping,
|
||
|
|
set_maxkeysize::TypeMapping);
|
||
|
|
|
||
|
|
} // end namespace operator
|
||
|
|
|
||
|
|
} // end namespace btree2algebra
|
||
|
|
|
||
|
|
|