/***********************************************

 !!!! DO NOT EDIT THIS FILE !!!!

 This file was auto-generated by Build.PL from
 lib/KinoSearch/Index/DelDocs.pm

 See KinoSearch::Docs::DevGuide for details.

 ***********************************************/

#line 144 "lib/KinoSearch/Index/DelDocs.pm"

#include "KinoSearchIndexDelDocs.h"

SV*
Kino_DelDocs_generate_doc_map(BitVector *deldocs, I32 max, I32 offset) {
    SV   *doc_map_sv;
    I32  *doc_map;
    I32   new_doc_num;
    int   i;

    /* allocate space for the doc map */
    doc_map_sv = newSV(max * sizeof(I32) + 1);
    SvCUR_set(doc_map_sv, max * sizeof(I32));
    SvPOK_on(doc_map_sv);
    doc_map = (I32*)SvPVX(doc_map_sv);

    /* -1 for a deleted doc, a new number otherwise */
    new_doc_num = 0;
    for (i = 0; i < max; i++) {
        if (Kino_BitVec_get(deldocs, i))
            *doc_map++ = -1;
        else
            *doc_map++ = offset + new_doc_num++;
    }
    
    return doc_map_sv;
}

I32  
Kino_DelDocs_delete_by_term_docs(BitVector* deldocs, TermDocs* term_docs) {
    I32 doc;
    I32 num_deleted = 0;

    /* iterate through term docs, marking each doc returned as deleted */
    while (term_docs->next(term_docs)) {
        doc = term_docs->get_doc(term_docs);
        if (Kino_BitVec_get(deldocs, doc))
            continue;
        Kino_BitVec_set(deldocs, doc);
        num_deleted++;
    }
    return num_deleted;
}