def write(self, ctx):
"""
Write the info of the current dir to database
"""
packer = PackerStream.PackerOStream(self.backup, Container.CODE_DIR)
# sorting is an optimization to make everybody access files in the same
# order.
# TODO: measure if this really makes things faster
# (probably will with a btree db)
for child in self.children:
Format.write_int(packer, child.get_type())
Format.write_string(packer, child.get_name().encode('utf8'))
packer.write(child.get_digest())
packer.write(IntegerEncodings.binary_encode_int_varlen(child.get_level()))
stats_str = serialize_stats(child.get_stats())
packer.write(stats_str)
self.digest = packer.get_digest()
self.level = packer.get_level()
return (packer.get_num_new_blocks(), packer.get_size_new_blocks())
def serialize_stats(stats):
file = StringIO.StringIO()
for mode in STAT_PRESERVED_MODES:
Format.write_int(file, stats[mode])
return file.getvalue()
