BoundsTracker.cxx

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#include "BoundsTracker.h"

#include <Validity/VldTimeStamp.h>

#include <iostream>
using namespace std;

BoundsTracker::BoundsTracker(const FileGap::BoundList& lst)
    : fIndex(0)
{
    cerr << "BoundList is " << lst.size() << " elements\n";

    FileGap::BoundList::const_iterator it, done = lst.end();
    for (it=lst.begin(); it != done; ++it) {
        VldTimeStamp a = it->first;
        VldTimeStamp b = it->second;

        fList.push_back(pair<VldTimeStamp,VldTimeStamp>(a,b));
    }
    fItr = fList.begin();
}
int BoundsTracker::InFile(const VldTimeStamp& vts)
{
    //cerr << "infile\n";
    size_t siz = fList.size();
    if (! siz) return -3;
    //cerr << "InFile("<< vts<<"), list size="<<siz<<"\n";

    if (fItr->first <= vts && vts <= fItr->second) return 0;

    if (vts < fItr->first) {
        if (fItr == fList.begin()) return -2;
        FileGap::BoundList::iterator prev = fItr;
        --prev;
        if (vts > prev->second) return -1;
        fItr = prev;
        --fIndex;
        return this->InFile(vts);       
    }

    if (vts > fItr->second) {
        FileGap::BoundList::iterator next = fItr;
        ++next;
        if (next == fList.end()) return +2;
        if (vts < next->first) return +1;
        fItr = next;
        ++fIndex;
        return this->InFile(vts);
    }

    return 0;                   // never reach this
}

int BoundsTracker::GetIndex() const
{
    return fIndex;
}
VldTimeStamp BoundsTracker::GetItrFirst()
{
    return fItr->first;
}
VldTimeStamp BoundsTracker::GetItrSecond()
{
    return fItr->second;
}

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