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/*
* (C) 2022 Soleta Consulting S.L. <info@soleta.eu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Author: Jose M. Guisado <jguisado@soleta.eu>
*/
#include "fdisk.h"
static PyMemberDef Partition_members[] = {
{ NULL }
};
static void Partition_dealloc(PartitionObject *self)
{
if (self->pa)
fdisk_unref_partition(self->pa);
Py_TYPE(self)->tp_free((PyObject *) self);
}
static PyObject *Partition_new(PyTypeObject *type,
PyObject *args __attribute__((unused)),
PyObject *kwds __attribute__((unused)))
{
PartitionObject *self = (PartitionObject*) type->tp_alloc(type, 0);
if (self)
self->pa = NULL;
return (PyObject *)self;
}
#define Partition_HELP "Partition(partno_follow_default=False, " \
"start_follow_default=False, " \
"end_follow_default=False)"
static int Partition_init(PartitionObject *self, PyObject *args, PyObject *kwds)
{
char *kwlist[] = {
"partno_follow_default",
"start_follow_default",
"end_follow_default",
NULL
};
int partno_follow_default = 0,
start_follow_default = 0,
end_follow_default = 0;
if (!PyArg_ParseTupleAndKeywords(args,
kwds, "|ppp", kwlist,
&partno_follow_default,
&start_follow_default,
&end_follow_default)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments for new partition");
return -1;
}
self->pa = fdisk_new_partition();
if (fdisk_partition_partno_follow_default(self->pa, partno_follow_default) < 0) {
PyErr_SetString(PyExc_RuntimeError, "Error setting partno_follow_default");
return -1;
}
if (fdisk_partition_start_follow_default(self->pa, start_follow_default) < 0) {
PyErr_SetString(PyExc_RuntimeError, "Error setting start_follow_default");
return -1;
}
if (fdisk_partition_end_follow_default(self->pa, end_follow_default) < 0) {
PyErr_SetString(PyExc_RuntimeError, "Error setting end_follow_default");
return -1;
}
return 0;
}
static PyMethodDef Partition_methods[] = {
{NULL}
};
static PyObject *Partition_get_partno(PartitionObject *self)
{
if (fdisk_partition_has_partno(self->pa)) {
return PyLong_FromSize_t(fdisk_partition_get_partno(self->pa));
}
Py_RETURN_NONE;
}
static int Partition_set_partno(PartitionObject *self, PyObject *value, void *closure)
{
size_t num;
if (value == NULL) {
fdisk_partition_unset_partno(self->pa);
return 0;
}
if (!PyLong_Check(value)) {
PyErr_SetString(PyExc_TypeError, ARG_ERR);
return -1;
}
num = PyLong_AsSize_t(value);
if (fdisk_partition_set_partno(self->pa, num) < 0) {
PyErr_SetString(PyExc_TypeError,
"libfdisk reported error setting partno");
return -1;
}
return 0;
}
static PyObject *Partition_get_size(PartitionObject *self)
{
if (fdisk_partition_has_size(self->pa)) {
return PyLong_FromUnsignedLongLong(fdisk_partition_get_size(self->pa));
}
Py_RETURN_NONE;
}
static int Partition_set_size(PartitionObject *self, PyObject *value, void *closure)
{
uint64_t sectors;
if (value == NULL) {
fdisk_partition_unset_size(self->pa);
return 0;
}
if (!PyLong_Check(value)) {
PyErr_SetString(PyExc_TypeError,
ARG_ERR);
return -1;
}
sectors = PyLong_AsUnsignedLongLong(value);
if (fdisk_partition_set_size(self->pa, sectors) < 0) {
PyErr_SetString(PyExc_TypeError,
"libfdisk reported error setting partition size");
return -1;
}
return 0;
}
static PyGetSetDef Partition_getseters[] = {
{"partno", (getter)Partition_get_partno, (setter)Partition_set_partno, "partition number", NULL},
{"size", (getter)Partition_get_size, (setter)Partition_set_size, "number of sectors", NULL},
{NULL}
};
static PyObject *Partition_repr(PartitionObject *self)
{
size_t partno;
if (fdisk_partition_has_partno(self->pa)) {
partno = fdisk_partition_get_partno(self->pa);
return PyUnicode_FromFormat("<libfdisk.Partition object at %p, partno=%zu>",
self, partno);
}
return PyUnicode_FromFormat("<libfdisk.Partition object at %p, partno=None>",
self);
}
PyTypeObject PartitionType = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "libfdisk.Partition",
.tp_basicsize = sizeof(PartitionObject),
.tp_itemsize = 0,
.tp_dealloc = (destructor)Partition_dealloc,
.tp_repr = (reprfunc) Partition_repr,
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = PyDoc_STR(Partition_HELP),
.tp_methods = Partition_methods,
.tp_members = Partition_members,
.tp_getset = Partition_getseters,
.tp_init = (initproc)Partition_init,
.tp_new = Partition_new,
};
PyObject *PyObjectResultPartition(struct fdisk_partition *pa)
{
PartitionObject *result;
if (!pa) {
PyErr_SetString(PyExc_AssertionError, "pa assert failed");
return NULL;
}
result = PyObject_New(PartitionObject, &PartitionType);
if (!result) {
PyErr_SetString(PyExc_MemoryError, "Couldn't allocate Partition object");
return NULL;
}
result->pa = pa;
return (PyObject *) result;
}
void Partition_AddModuleObject(PyObject *mod)
{
if (PyType_Ready(&PartitionType) < 0)
return;
Py_INCREF(&PartitionType);
PyModule_AddObject(mod, "Partition", (PyObject *)&PartitionType);
}
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