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Added constant for struct encoding

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This commit is contained in:
Philip Trauner 2016-10-12 16:27:11 +02:00
parent 55f9dd4425
commit d2571f6d50
1 changed files with 5 additions and 7 deletions
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8
Shared/Highway.py
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@ -29,10 +29,8 @@ INVALID_METADATA_LAYOUT = 2
INVALID_DATA_TYPE = 3
META_ROUTE = "meta"
COMPRESSION_LEVEL = 3
PACK_FORMAT = "Bh"
class ConvertFailedError(ValueError):
@ -76,7 +74,7 @@ class Meta:
def create_metadata(data_type, converted_route, indexed_dict=False):
return struct.pack("bh",
return struct.pack(PACK_FORMAT,
DATA_TYPES[data_type] if not indexed_dict else DATA_TYPES[INDEXED_DICT],
converted_route)
@ -108,7 +106,7 @@ def pack_message(data, exchange_route, compression_level,
def parse_metadata(message):
metadata = struct.unpack("bh", message[:4])
metadata = struct.unpack(PACK_FORMAT, message[:4])
return Metadata(metadata[0], metadata[1])