def _seek_to_gz_header(f):
header = util.read_ui(f, 4)
if header == 0x12340001 or header == 0x12340002:
offset = util.read_ui(f, 2)
f.seek(offset)
else:
raise IOError("invald header: {0:#x}".format(header))
return
def _seek_to_gz_header(f):
header=util.read_ui(f,4)
if header==0x12340001 or header==0x12340002:
offset=util.read_ui(f,2)
f.seek(offset)
else:
raise IOError("invald header: {0:#x}".format(header))
return
def _read_rec_data(self,pspec:int) -> memoryview:
"""read record data with high nibble of spec"""
if pspec<4:
rec_len=util.read_ui(self,pspec+1)
else:
rec_len=pspec-4
return memoryview(self.read(rec_len))
def _read_rec_data(self, pspec: int) -> memoryview:
"""read record data with high nibble of spec"""
if pspec < 4:
rec_len = util.read_ui(self, pspec + 1)
else:
rec_len = pspec - 4
return memoryview(self.read(rec_len))
def _read_rec(self) -> (int,memoryview):
spec=util.read_ui(self,1)
if spec==None:
return None
rec_type=spec&0x0f
rec_data=self._read_rec_data(spec>>4)
return (rec_type,rec_data)
def _seek_to_gz_header(f):
header=util.read_ui(f,4)
if header==0x12340001:
f.seek(0x69)
elif header==0x12340002:
f.seek(0x69)
else:
raise IOError("invald header: {0:#x}".format(header))
return
def _read_rec(self) -> (int, memoryview):
spec = util.read_ui(self, 1)
if spec == None:
return None
rec_type = spec & 0x0f
rec_data = self._read_rec_data(spec >> 4)
return (rec_type, rec_data)
