Function OpenDataFile

ethstorage/data_file.go:116–125

(filename string)

}

func OpenDataFile(filename string) (*DataFile, error) {
	file, err := os.OpenFile(filename, os.O_RDWR, 0755)
	if err != nil {
		return nil, err
	}
	dataFile := &DataFile{
		file: file,
	}
	return dataFile, dataFile.readHeader()
}

func (df *DataFile) Contains(chunkIdx uint64) bool {
	return chunkIdx >= df.chunkIdxStart && chunkIdx < df.ChunkIdxEnd()