func (d *CompoundFileDirectory) ListAll() (paths []string, err error) {
d.EnsureOpen()
// if self.writer != nil {
// return self.writer.ListAll()
// }
// Add the segment name
seg := util.ParseSegmentName(d.fileName)
keys := make([]string, 0, len(d.entries))
for k := range d.entries {
keys = append(keys, seg+k)
}
return keys, nil
}
/*
Set all gens beyond what we currently see in the directory, to avoid
double-write in cases where the previous IndexWriter did not
gracefully close/rollback (e.g. os/machine crashed or lost power).
*/
func inflateGens(infos *SegmentInfos, files []string, infoStream util.InfoStream) {
var maxSegmentGen int64 = math.MinInt64
var maxSegmentName int64 = math.MinInt32
// Confusingly, this is the union of liveDocs, field infos, doc
// values (and maybe others, in the future) gens. THis is somewhat
// messy, since it means DV updates will suddenly write to the next
// gen after live docs' gen, for example, but we don't have the
// APIs to ask the codec which file is which:
maxPerSegmentGen := make(map[string]int64)
for _, filename := range files {
if filename == INDEX_FILENAME_SEGMENTS_GEN || filename == WRITE_LOCK_NAME {
// do nothing
} else if strings.HasPrefix(filename, INDEX_FILENAME_SEGMENTS) {
if n := GenerationFromSegmentsFileName(filename); n > maxSegmentGen {
maxSegmentGen = n
}
} else {
segmentName := util.ParseSegmentName(filename)
assert2(strings.HasPrefix(segmentName, "_"), "file=%v", filename)
n, err := strconv.ParseInt(segmentName[1:], 36, 64)
assert(err == nil)
if n > maxSegmentName {
maxSegmentName = n
}
curGen := maxPerSegmentGen[segmentName] // or zero if not exists
if n := util.ParseGeneration(filename); n > curGen {
curGen = n
}
maxPerSegmentGen[segmentName] = curGen
}
}
}