// Open a hash table index and put it into collection structure.
func (col *Col) openIndex(indexPath []string, baseDir string) {
jointPath := strings.Join(indexPath, INDEX_PATH_SEP)
tables := make([]*chunkfile.HashTable, col.NumChunks)
for i := 0; i < col.NumChunks; i++ {
if err := os.MkdirAll(baseDir, 0700); err != nil {
panic(err)
}
table, err := chunkfile.OpenHash(path.Join(baseDir, strconv.Itoa(int(i))), indexPath)
if err != nil {
panic(err)
}
tables[i] = table
}
col.SecIndexes[jointPath] = tables
}
// Open a chunk.
func OpenChunk(number int, baseDir string) (chunk *ChunkCol, err error) {
// Create the directory if it does not yet exist
if err = os.MkdirAll(baseDir, 0700); err != nil {
return
}
tdlog.Printf("Opening chunk %s", baseDir)
chunk = &ChunkCol{Number: number, BaseDir: baseDir}
// Open collection document data file
tdlog.Printf("Opening collection data file %s", DAT_FILENAME_MAGIC)
if chunk.Data, err = chunkfile.OpenCol(path.Join(baseDir, DAT_FILENAME_MAGIC)); err != nil {
return
}
// Open PK hash table
tdlog.Printf("Opening PK hash table file %s", PK_FILENAME_MAGIC)
if chunk.PK, err = chunkfile.OpenHash(path.Join(baseDir, PK_FILENAME_MAGIC), []string{uid.PK_NAME}); err != nil {
return
}
return
}