Mercurial > hg > vampy

annotate PyParameterDescriptor.cpp @ 92:a6718f9fe942

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If a module appears to redefine one of our own types, refuse to load it. Also clear out the class dict for all refused modules now, so that we don't get stale names on the next scan due to not having cleared the module on unload
author Chris Cannam
date Mon, 14 Jan 2019 16:19:44 +0000
parents c1e4f706ca9a
children
rev   line source
fazekasgy@37 1 /*
fazekasgy@37 2
fazekasgy@37 3 * Vampy : This plugin is a wrapper around the Vamp plugin API.
fazekasgy@37 4 * It allows for writing Vamp plugins in Python.
fazekasgy@37 5
fazekasgy@37 6 * Centre for Digital Music, Queen Mary University of London.
fazekasgy@37 7 * Copyright (C) 2008-2009 Gyorgy Fazekas, QMUL. (See Vamp sources
fazekasgy@37 8 * for licence information.)
fazekasgy@37 9
fazekasgy@37 10 */
fazekasgy@37 11
fazekasgy@37 12 #include <Python.h>
fazekasgy@37 13 #include "PyParameterDescriptor.h"
fazekasgy@37 14 #include "vamp-sdk/Plugin.h"
fazekasgy@37 15 #include <string>
fazekasgy@37 16 #include "PyTypeInterface.h"
fazekasgy@37 17
fazekasgy@37 18 using namespace std;
fazekasgy@37 19 using namespace Vamp;
fazekasgy@37 20 using Vamp::Plugin;
fazekasgy@37 21
fazekasgy@37 22 /* ParameterDescriptor Object's Methods */
fazekasgy@37 23 //these objects have no callable methods
fazekasgy@37 24
fazekasgy@37 25 /* PyParameterDescriptor methods implementing protocols */
fazekasgy@37 26 // these functions are called by the interpreter automatically
fazekasgy@37 27
fazekasgy@37 28 /* New ParameterDescriptor object */
fazekasgy@37 29 static PyObject *
fazekasgy@37 30 ParameterDescriptor_new(PyTypeObject *type, PyObject *args, PyObject *kw)
fazekasgy@37 31 {
fazekasgy@37 32
fazekasgy@37 33 ParameterDescriptorObject *self =
fazekasgy@37 34 (ParameterDescriptorObject*)type->tp_alloc(type, 0);
fazekasgy@37 35
fazekasgy@37 36 if (self == NULL) return NULL;
fazekasgy@37 37 self->dict = PyDict_New();
fazekasgy@37 38 if (self->dict == NULL) return NULL;
fazekasgy@37 39
fazekasgy@37 40 /// allow copying objects
cannam@46 41 if (args && PyTuple_Size(args) == 1) {
fazekasgy@37 42 PyObject* arg = PyTuple_GET_ITEM(args,0);
fazekasgy@37 43 if (PyParameterDescriptor_CheckExact(arg))
fazekasgy@37 44 PyDict_Merge(self->dict,PyParameterDescriptor_AS_DICT(arg),0);
fazekasgy@37 45 else if (PyDict_CheckExact(arg))
fazekasgy@37 46 PyDict_Merge(self->dict,arg,0);
fazekasgy@37 47 else {
fazekasgy@37 48 PyErr_SetString(PyExc_TypeError,
fazekasgy@37 49 "Object takes zero or one ParameterDescriptor or dictionary arguments.");
fazekasgy@37 50 return NULL;
fazekasgy@37 51 }
fazekasgy@37 52 }
fazekasgy@37 53 return (PyObject *) self;
fazekasgy@37 54 }
fazekasgy@37 55
fazekasgy@37 56
fazekasgy@37 57 /* DESTRUCTOR: delete type object */
fazekasgy@37 58 static void
fazekasgy@37 59 ParameterDescriptorObject_dealloc(ParameterDescriptorObject *self)
fazekasgy@37 60 {
fazekasgy@37 61 Py_XDECREF(self->dict);
fazekasgy@37 62 PyObject_Del(self);
fazekasgy@37 63 }
fazekasgy@37 64
fazekasgy@37 65
fazekasgy@37 66 /* Set attributes */
fazekasgy@37 67 static int
fazekasgy@37 68 ParameterDescriptor_setattr(ParameterDescriptorObject *self, char *name, PyObject *v)
fazekasgy@37 69 {
fazekasgy@37 70 if (v == NULL) {
fazekasgy@37 71 int rv = PyDict_DelItemString(self->dict, name);
fazekasgy@37 72 if (rv < 0)
fazekasgy@37 73 PyErr_SetString(PyExc_AttributeError,"non-existing ParameterDescriptor attribute");
fazekasgy@37 74 return rv;
fazekasgy@37 75 }
fazekasgy@37 76 else
fazekasgy@37 77 return PyDict_SetItemString(self->dict, name, v);
fazekasgy@37 78 }
fazekasgy@37 79
fazekasgy@37 80
fazekasgy@37 81 /* Get attributes */
fazekasgy@37 82 static PyObject *
fazekasgy@37 83 ParameterDescriptor_getattr(ParameterDescriptorObject *self, char *name)
fazekasgy@37 84 {
fazekasgy@37 85 if (self->dict != NULL) {
fazekasgy@37 86 PyObject *v = PyDict_GetItemString(self->dict, name);
fazekasgy@37 87 if (v != NULL)
fazekasgy@37 88 {
fazekasgy@37 89 Py_INCREF(v);
fazekasgy@37 90 return v;
fazekasgy@37 91 }
fazekasgy@51 92 PyErr_SetString(PyExc_AttributeError,"non-existing ParameterDescriptor attribute");
fazekasgy@37 93 }
fazekasgy@37 94 return NULL;
fazekasgy@37 95 }
fazekasgy@37 96
fazekasgy@37 97
fazekasgy@37 98 /* String representation */
fazekasgy@37 99 static PyObject *
fazekasgy@37 100 ParameterDescriptor_repr(PyObject *self)
fazekasgy@37 101 {
fazekasgy@37 102 ParameterDescriptorObject* v = (ParameterDescriptorObject*)self;
fazekasgy@37 103 if (v->dict) return PyDict_Type.tp_repr((PyObject *)v->dict);
fazekasgy@37 104 else return PyString_FromString("ParameterDescriptor()");
fazekasgy@37 105 }
fazekasgy@37 106
fazekasgy@37 107 #define ParameterDescriptor_alloc PyType_GenericAlloc
fazekasgy@37 108 #define ParameterDescriptor_free PyObject_Del
fazekasgy@37 109
fazekasgy@37 110 PyTypeObject ParameterDescriptor_Type = {
fazekasgy@37 111 PyObject_HEAD_INIT(NULL)
fazekasgy@37 112 0, /*ob_size*/
fazekasgy@37 113 "vampy.ParameterDescriptor",/*tp_name*/
fazekasgy@37 114 sizeof(ParameterDescriptorObject), /*tp_basicsize*/
fazekasgy@37 115 0, /*tp_itemsize*/
fazekasgy@37 116 (destructor)ParameterDescriptorObject_dealloc, /*tp_dealloc*/
fazekasgy@37 117 0, /*tp_print*/
fazekasgy@37 118 (getattrfunc)ParameterDescriptor_getattr, /*tp_getattr*/
fazekasgy@37 119 (setattrfunc)ParameterDescriptor_setattr, /*tp_setattr*/
fazekasgy@37 120 0, /*tp_compare*/
fazekasgy@37 121 ParameterDescriptor_repr, /*tp_repr*/
fazekasgy@37 122 0, /*tp_as_number*/
fazekasgy@37 123 0, /*tp_as_sequence*/
fazekasgy@37 124 0, /*tp_as_mapping*/
fazekasgy@37 125 0, /*tp_hash*/
fazekasgy@37 126 0, /*tp_call*/
fazekasgy@37 127 0, /*tp_str*/
fazekasgy@37 128 0, /*tp_getattro*/
fazekasgy@37 129 0, /*tp_setattro*/
fazekasgy@37 130 0, /*tp_as_buffer*/
fazekasgy@37 131 Py_TPFLAGS_DEFAULT, /*tp_flags*/
fazekasgy@37 132 0, /*tp_doc*/
fazekasgy@37 133 0, /*tp_traverse*/
fazekasgy@37 134 0, /*tp_clear*/
fazekasgy@37 135 0, /*tp_richcompare*/
fazekasgy@37 136 0, /*tp_weaklistoffset*/
fazekasgy@37 137 0, /*tp_iter*/
fazekasgy@37 138 0, /*tp_iternext*/
fazekasgy@37 139 0, /*tp_methods*/ //TypeObject Methods
fazekasgy@37 140 0, /*tp_members*/
fazekasgy@37 141 0, /*tp_getset*/
fazekasgy@37 142 0, /*tp_base*/
fazekasgy@37 143 0, /*tp_dict*/
fazekasgy@37 144 0, /*tp_descr_get*/
fazekasgy@37 145 0, /*tp_descr_set*/
fazekasgy@37 146 0, /*tp_dictoffset*/
fazekasgy@37 147 0, /*tp_init*/
fazekasgy@37 148 ParameterDescriptor_alloc,/*tp_alloc*/
fazekasgy@37 149 ParameterDescriptor_new,/*tp_new*/
fazekasgy@37 150 ParameterDescriptor_free,/*tp_free*/
fazekasgy@37 151 0, /*tp_is_gc*/
fazekasgy@37 152 };
fazekasgy@37 153
fazekasgy@37 154 /* PyParameterDescriptor C++ API */
fazekasgy@37 155