def fhandle(self): # was get_handle
"""File handle for CXTgeo (read only)"""
if self._fhandle and "Swig Object of type 'FILE" in str(self._fhandle):
return self._fhandle
fhandle = None
if (isinstance(self._name, io.BytesIO) and self._mode == "rb"
and plfsys() == "Linux"):
buf = self._name.getvalue(
) # bytes type in Python3, str in Python2
# note that the typemap in swig computes the length for the buf!
fhandle = _cxtgeo.xtg_fopen_bytestream(buf, self._mode)
logger.debug("Filehandle for byte stream: %s", fhandle)
elif (isinstance(self._name, io.BytesIO) and self._mode == "rb"
and (plfsys() == "Windows" or plfsys() == "Darwin")):
# windows/mac miss fmemopen; write buffer to a tmp instead as workaround
fds, tmpfile = mkstemp(prefix="tmpxtgeoio")
os.close(fds)
with open(tmpfile, "wb") as newfile:
newfile.write(self._name.getvalue())
# now open this a regular fhandle
fhandle = _cxtgeo.xtg_fopen(tmpfile, self._mode)
self._tmpfile = tmpfile
else:
fhandle = _cxtgeo.xtg_fopen(self._name, self._mode)
self._fhandle = fhandle
return self._fhandle
def fhandle(self): # was get_handle
"""SWIG file handle for CXTgeo, the filehandle is a read only property"""
logger.info("Get SWIG fhandle...")
if self._fhandle and "Swig Object of type 'FILE" in str(self._fhandle):
return self._fhandle
fhandle = None
if (isinstance(self._file, io.BytesIO) and self._mode == "rb"
and plfsys() == "Linux"):
if six.PY2:
raise NotImplementedError(
"Reading BytesIO not fully supported in Python 2")
fobj = self._file.getvalue(
) # bytes type in Python3, str in Python2
# note that the typemap in swig computes the length for the buf/fobj!
self._memstream = True
elif (isinstance(self._file, io.BytesIO) and self._mode == "wb"
and plfsys() == "Linux"):
if six.PY2:
raise NotImplementedError(
"Writing to BytesIO not supported in Python 2")
fobj = bytes()
self._memstream = True
elif (isinstance(self._file, io.BytesIO) and self._mode == "rb"
and (plfsys() == "Windows" or plfsys() == "Darwin")):
# windows/mac miss fmemopen; write buffer to a tmp instead as workaround
fds, fobj = mkstemp(prefix="tmpxtgeoio")
os.close(fds)
with open(fobj, "wb") as newfile:
newfile.write(self._file.getvalue())
self._tmpfile = fobj
else:
fobj = self.name
if self._memstream:
fhandle = _cxtgeo.xtg_fopen_bytestream(fobj, self._mode)
else:
try:
fhandle = _cxtgeo.xtg_fopen(fobj, self._mode)
except TypeError as err:
reason = ""
if six.PY2:
reason = "In Python 2, do not use __future__ UnicodeLiterals!"
logger.critical("Cannot open file: %s. %s", err, reason)
self._fhandle = fhandle
return self._fhandle
def get_cfhandle(self): # was get_handle
"""
Get SWIG C file handle for CXTgeo
This is tied to cfclose() which closes the file.
if _cfhandle already exists, then _cfhandlecount is increased with 1
"""
# differ on Linux and other OS as Linux can use fmemopen() in C
islinux = True
if plfsys() != "Linux":
islinux = False
if self._cfhandle and "Swig Object of type 'FILE" in str(
self._cfhandle):
self._cfhandlecount += 1
logger.info("Get SWIG C fhandle no %s", self._cfhandlecount)
return self._cfhandle
if isinstance(self._file,
io.BytesIO) and self._mode == "rb" and islinux:
fobj = self._file.getvalue(
) # bytes type in Python3, str in Python2
# note that the typemap in swig computes the length for the buf/fobj!
self._memstream = True
elif isinstance(self._file,
io.BytesIO) and self._mode == "wb" and islinux:
fobj = bytes()
self._memstream = True
elif (isinstance(self._file, io.BytesIO) and self._mode == "rb"
and not islinux # Windows or Darwin
):
# windows/mac miss fmemopen; write buffer to a tmp instead as workaround
fds, self._tmpfile = mkstemp(prefix="tmpxtgeoio")
os.close(fds)
with open(self._tmpfile, "wb") as newfile:
newfile.write(self._file.getvalue())
else:
fobj = self.name
if self._memstream:
if islinux:
cfhandle = _cxtgeo.xtg_fopen_bytestream(fobj, self._mode)
else:
cfhandle = _cxtgeo.xtg_fopen(self._tmpfile, self._mode)
else:
try:
cfhandle = _cxtgeo.xtg_fopen(fobj, self._mode)
except TypeError as err:
logger.critical("Cannot open file: %s", err)
self._cfhandle = cfhandle
self._cfhandlecount = 1
logger.info("Get initial SWIG C fhandle no %s", self._cfhandlecount)
return self._cfhandle