static SeriesMatcher*
S_make_series_matcher(I32Array *doc_ids, I32Array *offsets, int32_t doc_max) {
int32_t num_doc_ids = I32Arr_Get_Size(doc_ids);
int32_t num_matchers = I32Arr_Get_Size(offsets);
VArray *matchers = VA_new(num_matchers);
int32_t tick = 0;
int32_t i;
// Divvy up doc_ids by segment into BitVectors.
for (i = 0; i < num_matchers; i++) {
int32_t offset = I32Arr_Get(offsets, i);
int32_t max = i == num_matchers - 1
? doc_max + 1
: I32Arr_Get(offsets, i + 1);
BitVector *bit_vec = BitVec_new(max - offset);
while (tick < num_doc_ids) {
int32_t doc_id = I32Arr_Get(doc_ids, tick);
if (doc_id > max) { break; }
else { tick++; }
BitVec_Set(bit_vec, doc_id - offset);
}
VA_Push(matchers, (Obj*)BitVecMatcher_new(bit_vec));
DECREF(bit_vec);
}
SeriesMatcher *series_matcher = SeriesMatcher_new(matchers, offsets);
DECREF(matchers);
return series_matcher;
}
Matcher*
DefDelWriter_Seg_Deletions_IMP(DefaultDeletionsWriter *self,
SegReader *seg_reader) {
DefaultDeletionsWriterIVARS *const ivars = DefDelWriter_IVARS(self);
Matcher *deletions = NULL;
Segment *segment = SegReader_Get_Segment(seg_reader);
String *seg_name = Seg_Get_Name(segment);
Integer32 *tick_obj = (Integer32*)Hash_Fetch(ivars->name_to_tick,
(Obj*)seg_name);
int32_t tick = tick_obj ? Int32_Get_Value(tick_obj) : 0;
SegReader *candidate = tick_obj
? (SegReader*)VA_Fetch(ivars->seg_readers, tick)
: NULL;
if (tick_obj) {
DeletionsReader *del_reader
= (DeletionsReader*)SegReader_Obtain(
candidate, Class_Get_Name(DELETIONSREADER));
if (ivars->updated[tick] || DelReader_Del_Count(del_reader)) {
BitVector *deldocs = (BitVector*)VA_Fetch(ivars->bit_vecs, tick);
deletions = (Matcher*)BitVecMatcher_new(deldocs);
}
}
else { // Sanity check.
THROW(ERR, "Couldn't find SegReader %o", seg_reader);
}
return deletions;
}
