/**
* This function opens the file system stored on \p geom, if it
* can find one.
* It is often called in the following manner:
* \code
* fs = ped_file_system_open (&part.geom)
* \endcode
*
* \throws PED_EXCEPTION_ERROR if file system could not be detected
* \throws PED_EXCEPTION_ERROR if the file system is bigger than its volume
* \throws PED_EXCEPTION_NO_FEATURE if opening of a file system stored on
* \p geom is not implemented
*
* \return a PedFileSystem on success, \c NULL on failure.
*/
PedFileSystem *
ped_file_system_open (PedGeometry* geom)
{
PED_ASSERT (geom != NULL);
if (!ped_device_open (geom->dev))
goto error;
PedFileSystemType *type = ped_file_system_probe (geom);
if (!type) {
ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("Could not detect file system."));
goto error_close_dev;
}
open_fn_t open_f = open_fn (type->name);
if (open_f == NULL) {
ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
_("resizing %s file systems is not supported"),
type->name);
goto error_close_dev;
}
PedGeometry *probed_geom = ped_file_system_probe_specific (type, geom);
if (!probed_geom)
goto error_close_dev;
if (!ped_geometry_test_inside (geom, probed_geom)) {
if (ped_exception_throw (
PED_EXCEPTION_ERROR,
PED_EXCEPTION_IGNORE_CANCEL,
_("The file system is bigger than its volume!"))
!= PED_EXCEPTION_IGNORE)
goto error_destroy_probed_geom;
}
PedFileSystem *fs = (*open_f) (probed_geom);
if (!fs)
goto error_destroy_probed_geom;
ped_geometry_destroy (probed_geom);
fs->type = type;
return fs;
error_destroy_probed_geom:
ped_geometry_destroy (probed_geom);
error_close_dev:
ped_device_close (geom->dev);
error:
return NULL;
}
PyObject *py_ped_file_system_probe_specific(PyObject *s, PyObject *args) {
PyObject *in_geom = NULL, *in_fstype = NULL;
PedFileSystemType *fstype = NULL;
PedGeometry *out_geom = NULL, *geom = NULL;
_ped_Geometry *ret = NULL;
if (!PyArg_ParseTuple(args, "O!O!", &_ped_FileSystemType_Type_obj,
&in_fstype, &_ped_Geometry_Type_obj, &in_geom)) {
return NULL;
}
fstype = _ped_FileSystemType2PedFileSystemType(in_fstype);
if (!fstype) {
return NULL;
}
out_geom = _ped_Geometry2PedGeometry(in_geom);
if (!out_geom) {
return NULL;
}
geom = ped_file_system_probe_specific(fstype, out_geom);
if (geom) {
ret = PedGeometry2_ped_Geometry(geom);
} else {
/* libparted swallows exceptions here (I think) and just returns
* NULL if the match is not made. Reset exception flag and return
* None.
*/
if (partedExnRaised) {
partedExnRaised = 0;
}
Py_INCREF(Py_None);
return Py_None;
}
return (PyObject *) ret;
}
