SIP4 python bindings generator for TQt
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/*
* SIP library code.
*
* Copyright (c) 2010 Riverbank Computing Limited <info@riverbankcomputing.com>
*
* This file is part of SIP.
*
* This copy of SIP is licensed for use under the terms of the SIP License
* Agreement. See the file LICENSE for more details.
*
* This copy of SIP may also used under the terms of the GNU General Public
* License v2 or v3 as published by the Free Software Foundation which can be
* found in the files LICENSE-GPL2 and LICENSE-GPL3 included in this package.
*
* SIP is supplied WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <Python.h>
#include <stddef.h>
#include "sip.h"
#include "sipint.h"
/* The object data structure. */
typedef struct {
PyObject_HEAD
void *voidptr;
SIP_SSIZE_T size;
int rw;
} sipVoidPtrObject;
/* The structure used to hold the results of a voidptr conversion. */
struct vp_values {
void *voidptr;
SIP_SSIZE_T size;
int rw;
};
static PyObject *make_voidptr(void *voidptr, SIP_SSIZE_T size, int rw);
static int vp_convertor(PyObject *arg, struct vp_values *vp);
/*
* Implement __new__ for the type.
*/
static PyObject *sipVoidPtr_new(PyTypeObject *subtype, PyObject *args,
PyObject *kw)
{
static char *kwlist[] = {"address", "size", "writeable", NULL};
struct vp_values vp_conversion;
SIP_SSIZE_T size = -1;
int rw = -1;
PyObject *obj;
if (!PyArg_ParseTupleAndKeywords(args, kw,
#if PY_VERSION_HEX >= 0x02050000
"O&|ni:voidptr",
#else
"O&|ii:voidptr",
#endif
kwlist, vp_convertor, &vp_conversion, &size, &rw))
return NULL;
/* Use the explicit size if one was given. */
if (size >= 0)
vp_conversion.size = size;
/* Use the explicit writeable flag if one was given. */
if (rw >= 0)
vp_conversion.rw = rw;
/* Create the instance. */
if ((obj = subtype->tp_alloc(subtype, 0)) == NULL)
return NULL;
/* Save the values. */
((sipVoidPtrObject *)obj)->voidptr = vp_conversion.voidptr;
((sipVoidPtrObject *)obj)->size = vp_conversion.size;
((sipVoidPtrObject *)obj)->rw = vp_conversion.rw;
return obj;
}
#if PY_MAJOR_VERSION >= 3
/*
* The read buffer implementation for Python v3.
*/
static int sipVoidPtr_getbuffer(PyObject *self, Py_buffer *buf, int flags)
{
sipVoidPtrObject *v = (sipVoidPtrObject *)self;
return PyBuffer_FillInfo(buf, self, v->voidptr, v->size, !v->rw, flags);
}
#endif
#if PY_MAJOR_VERSION < 3
/*
* The read buffer implementation for Python v2.
*/
static SIP_SSIZE_T sipVoidPtr_getbuffer(PyObject *self, SIP_SSIZE_T seg,
void **ptr)
{
SIP_SSIZE_T size = ((sipVoidPtrObject *)self)->size;
if (size < 0 || seg != 0)
{
PyErr_SetString(PyExc_SystemError, "invalid buffer segment");
return -1;
}
*ptr = ((sipVoidPtrObject *)self)->voidptr;
return size;
}
#endif
#if PY_MAJOR_VERSION < 3
/*
* The write buffer implementation for Python v2.
*/
static SIP_SSIZE_T sipVoidPtr_getwritebuffer(PyObject *self, SIP_SSIZE_T seg,
void **ptr)
{
if (((sipVoidPtrObject *)self)->rw)
return sipVoidPtr_getbuffer(self, seg, ptr);
PyErr_SetString(PyExc_TypeError, "the sip.voidptr is not writeable");
return -1;
}
#endif
#if PY_MAJOR_VERSION < 3
/*
* The segment count implementation for Python v2.
*/
static SIP_SSIZE_T sipVoidPtr_getsegcount(PyObject *self, SIP_SSIZE_T *lenp)
{
SIP_SSIZE_T segs, len;
len = ((sipVoidPtrObject *)self)->size;
segs = (len < 0 ? 0 : 1);
if (lenp != NULL)
*lenp = len;
return segs;
}
#endif
/*
* Implement int() for the type.
*/
static PyObject *sipVoidPtr_int(sipVoidPtrObject *v)
{
return PyLong_FromVoidPtr(v->voidptr);
}
#if PY_MAJOR_VERSION < 3
/*
* Implement hex() for the type.
*/
static PyObject *sipVoidPtr_hex(sipVoidPtrObject *v)
{
char buf[2 + 16 + 1];
PyOS_snprintf(buf, sizeof (buf), "0x%.*lx", (int)(sizeof (void *) * 2),
(unsigned long)v->voidptr);
return PyString_FromString(buf);
}
#endif
#if defined(SIP_USE_PYCAPSULE)
/*
* Implement ascapsule() for the type.
*/
static PyObject *sipVoidPtr_ascapsule(sipVoidPtrObject *v, PyObject *arg)
{
return PyCapsule_New(v->voidptr, NULL, NULL);
}
#endif
/*
* Implement ascobject() for the type.
*/
static PyObject *sipVoidPtr_ascobject(sipVoidPtrObject *v, PyObject *arg)
{
return PyCObject_FromVoidPtr(v->voidptr, NULL);
}
/*
* Implement asstring() for the type.
*/
static PyObject *sipVoidPtr_asstring(sipVoidPtrObject *v, PyObject *args,
PyObject *kw)
{
static char *kwlist[] = {"size", NULL};
SIP_SSIZE_T size = -1;
if (!PyArg_ParseTupleAndKeywords(args, kw,
#if PY_VERSION_HEX >= 0x02050000
"|n:asstring",
#else
"|i:asstring",
#endif
kwlist, &size))
return NULL;
/* Use the current size if one wasn't explicitly given. */
if (size < 0)
size = v->size;
if (size < 0)
{
PyErr_SetString(PyExc_ValueError,
"a size must be given or the sip.voidptr must have a size");
return NULL;
}
return SIPBytes_FromStringAndSize(v->voidptr, size);
}
/*
* Implement getsize() for the type.
*/
static PyObject *sipVoidPtr_getsize(sipVoidPtrObject *v, PyObject *arg)
{
#if PY_MAJOR_VERSION >= 3
return PyLong_FromSsize_t(v->size);
#elif PY_VERSION_HEX >= 0x02050000
return PyInt_FromSsize_t(v->size);
#else
return PyInt_FromLong(v->size);
#endif
}
/*
* Implement setsize() for the type.
*/
static PyObject *sipVoidPtr_setsize(sipVoidPtrObject *v, PyObject *arg)
{
SIP_SSIZE_T size;
#if PY_MAJOR_VERSION >= 3
size = PyLong_AsSsize_t(arg);
#elif PY_VERSION_HEX >= 0x02050000
size = PyInt_AsSsize_t(arg);
#else
size = (int)PyInt_AsLong(arg);
#endif
if (PyErr_Occurred())
return NULL;
v->size = size;
Py_INCREF(Py_None);
return Py_None;
}
/*
* Implement getwriteable() for the type.
*/
static PyObject *sipVoidPtr_getwriteable(sipVoidPtrObject *v, PyObject *arg)
{
return PyBool_FromLong(v->rw);
}
/*
* Implement setwriteable() for the type.
*/
static PyObject *sipVoidPtr_setwriteable(sipVoidPtrObject *v, PyObject *arg)
{
int rw;
rw = (int)SIPLong_AsLong(arg);
if (PyErr_Occurred())
return NULL;
v->rw = rw;
Py_INCREF(Py_None);
return Py_None;
}
/* The methods data structure. */
static PyMethodDef sipVoidPtr_Methods[] = {
#if defined(SIP_USE_PYCAPSULE)
{"ascapsule", (PyCFunction)sipVoidPtr_ascapsule, METH_NOARGS, NULL},
#endif
{"ascobject", (PyCFunction)sipVoidPtr_ascobject, METH_NOARGS, NULL},
{"asstring", (PyCFunction)sipVoidPtr_asstring, METH_KEYWORDS, NULL},
{"getsize", (PyCFunction)sipVoidPtr_getsize, METH_NOARGS, NULL},
{"setsize", (PyCFunction)sipVoidPtr_setsize, METH_O, NULL},
{"getwriteable", (PyCFunction)sipVoidPtr_getwriteable, METH_NOARGS, NULL},
{"setwriteable", (PyCFunction)sipVoidPtr_setwriteable, METH_O, NULL},
{NULL}
};
/* The number methods data structure. */
static PyNumberMethods sipVoidPtr_NumberMethods = {
0, /* nb_add */
0, /* nb_subtract */
0, /* nb_multiply */
#if PY_MAJOR_VERSION < 3
0, /* nb_divide */
#endif
0, /* nb_remainder */
0, /* nb_divmod */
0, /* nb_power */
0, /* nb_negative */
0, /* nb_positive */
0, /* nb_absolute */
0, /* nb_bool (Python v3), nb_nonzero (Python v2) */
0, /* nb_invert */
0, /* nb_lshift */
0, /* nb_rshift */
0, /* nb_and */
0, /* nb_xor */
0, /* nb_or */
#if PY_MAJOR_VERSION < 3
0, /* nb_coerce */
#endif
(unaryfunc)sipVoidPtr_int, /* nb_int */
0, /* nb_reserved (Python v3), nb_long (Python v2) */
0, /* nb_float */
#if PY_MAJOR_VERSION < 3
0, /* nb_oct */
(unaryfunc)sipVoidPtr_hex, /* nb_hex */
#endif
0, /* nb_inplace_add */
0, /* nb_inplace_subtract */
0, /* nb_inplace_multiply */
#if PY_MAJOR_VERSION < 3
0, /* nb_inplace_divide */
#endif
0, /* nb_inplace_remainder */
0, /* nb_inplace_power */
0, /* nb_inplace_lshift */
0, /* nb_inplace_rshift */
0, /* nb_inplace_and */
0, /* nb_inplace_xor */
0, /* nb_inplace_or */
0, /* nb_floor_divide */
0, /* nb_true_divide */
0, /* nb_inplace_floor_divide */
0, /* nb_inplace_true_divide */
#if PY_VERSION_HEX >= 0x02050000
0 /* nb_index */
#endif
};
/* The buffer methods data structure. */
static PyBufferProcs sipVoidPtr_BufferProcs = {
sipVoidPtr_getbuffer,
#if PY_MAJOR_VERSION >= 3
NULL,
#else
sipVoidPtr_getwritebuffer,
sipVoidPtr_getsegcount,
#if PY_VERSION_HEX >= 0x02050000
(charbufferproc)sipVoidPtr_getbuffer
#else
(getcharbufferproc)sipVoidPtr_getbuffer
#endif
#endif
};
/* The type data structure. */
PyTypeObject sipVoidPtr_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"sip.voidptr", /* tp_name */
sizeof (sipVoidPtrObject), /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved (Python v3), tp_compare (Python v2) */
0, /* tp_repr */
&sipVoidPtr_NumberMethods, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
&sipVoidPtr_BufferProcs, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
0, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
sipVoidPtr_Methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
sipVoidPtr_new, /* tp_new */
};
/*
* A convenience function to convert a C/C++ void pointer from a Python object.
*/
void *sip_api_convert_to_void_ptr(PyObject *obj)
{
if (obj == NULL)
{
PyErr_SetString(PyExc_TypeError, "sip.voidptr is NULL");
return NULL;
}
if (obj == Py_None)
return NULL;
if (PyObject_TypeCheck(obj, &sipVoidPtr_Type))
return ((sipVoidPtrObject *)obj)->voidptr;
#if defined(SIP_USE_PYCAPSULE)
if (PyCapsule_CheckExact(obj))
return PyCapsule_GetPointer(obj, NULL);
#endif
if (PyCObject_Check(obj))
return PyCObject_AsVoidPtr(obj);
#if PY_MAJOR_VERSION >= 3
return PyLong_AsVoidPtr(obj);
#else
return (void *)PyInt_AsLong(obj);
#endif
}
/*
* Convert a C/C++ void pointer to a sip.voidptr object.
*/
PyObject *sip_api_convert_from_void_ptr(void *val)
{
return make_voidptr(val, -1, TRUE);
}
/*
* Convert a C/C++ void pointer to a sip.voidptr object.
*/
PyObject *sip_api_convert_from_const_void_ptr(const void *val)
{
return make_voidptr((void *)val, -1, FALSE);
}
/*
* Convert a sized C/C++ void pointer to a sip.voidptr object.
*/
PyObject *sip_api_convert_from_void_ptr_and_size(void *val, SIP_SSIZE_T size)
{
return make_voidptr(val, size, TRUE);
}
/*
* Convert a sized C/C++ const void pointer to a sip.voidptr object.
*/
PyObject *sip_api_convert_from_const_void_ptr_and_size(const void *val,
SIP_SSIZE_T size)
{
return make_voidptr((void *)val, size, FALSE);
}
/*
* Do the work of converting a void pointer.
*/
static PyObject *make_voidptr(void *voidptr, SIP_SSIZE_T size, int rw)
{
sipVoidPtrObject *self;
if (voidptr == NULL)
{
Py_INCREF(Py_None);
return Py_None;
}
if ((self = PyObject_NEW(sipVoidPtrObject, &sipVoidPtr_Type)) == NULL)
return NULL;
self->voidptr = voidptr;
self->size = size;
self->rw = rw;
return (PyObject *)self;
}
/*
* Convert a Python object to the values needed to create a voidptr.
*/
static int vp_convertor(PyObject *arg, struct vp_values *vp)
{
void *ptr;
SIP_SSIZE_T size = -1;
int rw = TRUE;
if (arg == Py_None)
ptr = NULL;
#if defined(SIP_USE_PYCAPSULE)
else if (PyCapsule_CheckExact(arg))
ptr = PyCapsule_GetPointer(arg, NULL);
#endif
else if (PyCObject_Check(arg))
ptr = PyCObject_AsVoidPtr(arg);
else if (PyObject_TypeCheck(arg, &sipVoidPtr_Type))
{
ptr = ((sipVoidPtrObject *)arg)->voidptr;
size = ((sipVoidPtrObject *)arg)->size;
rw = ((sipVoidPtrObject *)arg)->rw;
}
else
{
#if PY_MAJOR_VERSION >= 3
ptr = PyLong_AsVoidPtr(arg);
#else
ptr = (void *)PyInt_AsLong(arg);
#endif
if (PyErr_Occurred())
{
#if PY_VERSION_HEX >= 0x03010000
PyErr_SetString(PyExc_TypeError, "a single integer, CObject, None or another voidptr is required");
#else
PyErr_SetString(PyExc_TypeError, "a single integer, Capsule, CObject, None or another voidptr is required");
#endif
return 0;
}
}
vp->voidptr = ptr;
vp->size = size;
vp->rw = rw;
return 1;
}