mariadb-columnstore-engine/tools/qfe/sendcsep.cpp

#include <unistd.h>
#include <stdexcept>
#include <memory>
using namespace std;

#include <boost/scoped_ptr.hpp>
using namespace boost;

#include "calpontselectexecutionplan.h"
using namespace execplan;
#include "bytestream.h"
#include "messagequeue.h"
using namespace messageqcpp;

namespace qfe
{

MessageQueueClient* sendCSEP(CalpontSelectExecutionPlan* csep)
{
    scoped_ptr<CalpontSelectExecutionPlan> cleaner(csep);

    ByteStream bs;

    MessageQueueClient* mqc = 0;

    mqc = new MessageQueueClient("ExeMgr1");
    auto_ptr<MessageQueueClient> smqc(mqc);

    bs.reset();
    ByteStream::quadbyte wantTuples = 4;
    bs << wantTuples;
    mqc->write(bs);

    bs.reset();
    csep->serialize(bs);
    mqc->write(bs);

    SBS sbs;
    sbs = mqc->read();
    *sbs >> wantTuples;
    //cerr << "got flag: " << wantTuples << endl;
    string msg;
    sbs = mqc->read();
    *sbs >> msg;
    //cerr << "got msg: " << msg << endl;

    if (wantTuples != 0)
        throw runtime_error(msg);

    smqc.release();
    return mqc;
}

}