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import struct
from .text_data_pb2 import TextData
def read_pb_stream(f):
while True:
buf = f.read(4)
if len(buf) == 0:
break
size = struct.unpack("I", buf)[0]
buf = f.read(size)
text_data = TextData()
text_data.ParseFromString(buf)
yield text_data
def write_pb_stream(f, text_data):
buf = text_data.SerializeToString()
f.write(struct.pack("I", len(buf)))
f.write(buf)
def pack_pb_stream(text_data):
buf = text_data.SerializeToString()
return struct.pack("I", len(buf)) + buf
def split_pb_stream(f):
while True:
head = f.read(4)
if len(head) == 0:
break
size = struct.unpack("I", head)[0]
buf = f.read(size)
yield head + buf
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