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9a3a7fa
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master
uproctrace
python3
uproctrace
parse.py
separate parsing from dumping
Stefan Schuermans
commited
9a3a7fa
at 2020-05-23 11:15:35
parse.py
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import uproctrace.uproctrace_pb2 as pb2 import struct def read_event(f): """ Read the first event from f and return it. Return None if no event could be found. """ # skip till after magic magic = f.read(4) while magic != b'upt0': if len(magic) < 4: return None # EOF magic = magic[1:] + f.read(1) # search for magic byte for byte # read size of next event (32 bit network byte order) size = f.read(4) if len(size) < 4: return None # EOF size = struct.unpack('!L', size)[0] # read event data data = f.read(size) if len(data) < size: return None # EOF # unpack event event = pb2.event.FromString(data) return event
