| 1 | #ifndef __CAPSULETHUNK_H
|
|---|
| 2 | #define __CAPSULETHUNK_H
|
|---|
| 3 |
|
|---|
| 4 | #if ( (PY_VERSION_HEX < 0x02070000) \
|
|---|
| 5 | || ((PY_VERSION_HEX >= 0x03000000) \
|
|---|
| 6 | && (PY_VERSION_HEX < 0x03010000)) )
|
|---|
| 7 |
|
|---|
| 8 | #define __PyCapsule_GetField(capsule, field, default_value) \
|
|---|
| 9 | ( PyCapsule_CheckExact(capsule) \
|
|---|
| 10 | ? (((PyCObject *)capsule)->field) \
|
|---|
| 11 | : (default_value) \
|
|---|
| 12 | ) \
|
|---|
| 13 |
|
|---|
| 14 | #define __PyCapsule_SetField(capsule, field, value) \
|
|---|
| 15 | ( PyCapsule_CheckExact(capsule) \
|
|---|
| 16 | ? (((PyCObject *)capsule)->field = value), 1 \
|
|---|
| 17 | : 0 \
|
|---|
| 18 | ) \
|
|---|
| 19 |
|
|---|
| 20 |
|
|---|
| 21 | #define PyCapsule_Type PyCObject_Type
|
|---|
| 22 |
|
|---|
| 23 | #define PyCapsule_CheckExact(capsule) (PyCObject_Check(capsule))
|
|---|
| 24 | #define PyCapsule_IsValid(capsule, name) (PyCObject_Check(capsule))
|
|---|
| 25 |
|
|---|
| 26 |
|
|---|
| 27 | #define PyCapsule_New(pointer, name, destructor) \
|
|---|
| 28 | (PyCObject_FromVoidPtr(pointer, destructor))
|
|---|
| 29 |
|
|---|
| 30 |
|
|---|
| 31 | #define PyCapsule_GetPointer(capsule, name) \
|
|---|
| 32 | (PyCObject_AsVoidPtr(capsule))
|
|---|
| 33 |
|
|---|
| 34 | /* Don't call PyCObject_SetPointer here, it fails if there's a destructor */
|
|---|
| 35 | #define PyCapsule_SetPointer(capsule, pointer) \
|
|---|
| 36 | __PyCapsule_SetField(capsule, cobject, pointer)
|
|---|
| 37 |
|
|---|
| 38 |
|
|---|
| 39 | #define PyCapsule_GetDestructor(capsule) \
|
|---|
| 40 | __PyCapsule_GetField(capsule, destructor)
|
|---|
| 41 |
|
|---|
| 42 | #define PyCapsule_SetDestructor(capsule, dtor) \
|
|---|
| 43 | __PyCapsule_SetField(capsule, destructor, dtor)
|
|---|
| 44 |
|
|---|
| 45 |
|
|---|
| 46 | /*
|
|---|
| 47 | * Sorry, there's simply no place
|
|---|
| 48 | * to store a Capsule "name" in a CObject.
|
|---|
| 49 | */
|
|---|
| 50 | #define PyCapsule_GetName(capsule) NULL
|
|---|
| 51 |
|
|---|
| 52 | static int
|
|---|
| 53 | PyCapsule_SetName(PyObject *capsule, const char *unused)
|
|---|
| 54 | {
|
|---|
| 55 | unused = unused;
|
|---|
| 56 | PyErr_SetString(PyExc_NotImplementedError,
|
|---|
| 57 | "can't use PyCapsule_SetName with CObjects");
|
|---|
| 58 | return 1;
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 |
|
|---|
| 62 |
|
|---|
| 63 | #define PyCapsule_GetContext(capsule) \
|
|---|
| 64 | __PyCapsule_GetField(capsule, descr)
|
|---|
| 65 |
|
|---|
| 66 | #define PyCapsule_SetContext(capsule, context) \
|
|---|
| 67 | __PyCapsule_SetField(capsule, descr, context)
|
|---|
| 68 |
|
|---|
| 69 |
|
|---|
| 70 | static void *
|
|---|
| 71 | PyCapsule_Import(const char *name, int no_block)
|
|---|
| 72 | {
|
|---|
| 73 | PyObject *object = NULL;
|
|---|
| 74 | void *return_value = NULL;
|
|---|
| 75 | char *trace;
|
|---|
| 76 | size_t name_length = (strlen(name) + 1) * sizeof(char);
|
|---|
| 77 | char *name_dup = (char *)PyMem_MALLOC(name_length);
|
|---|
| 78 |
|
|---|
| 79 | if (!name_dup) {
|
|---|
| 80 | return NULL;
|
|---|
| 81 | }
|
|---|
| 82 |
|
|---|
| 83 | memcpy(name_dup, name, name_length);
|
|---|
| 84 |
|
|---|
| 85 | trace = name_dup;
|
|---|
| 86 | while (trace) {
|
|---|
| 87 | char *dot = strchr(trace, '.');
|
|---|
| 88 | if (dot) {
|
|---|
| 89 | *dot++ = '\0';
|
|---|
| 90 | }
|
|---|
| 91 |
|
|---|
| 92 | if (object == NULL) {
|
|---|
| 93 | if (no_block) {
|
|---|
| 94 | object = PyImport_ImportModuleNoBlock(trace);
|
|---|
| 95 | } else {
|
|---|
| 96 | object = PyImport_ImportModule(trace);
|
|---|
| 97 | if (!object) {
|
|---|
| 98 | PyErr_Format(PyExc_ImportError,
|
|---|
| 99 | "PyCapsule_Import could not "
|
|---|
| 100 | "import module \"%s\"", trace);
|
|---|
| 101 | }
|
|---|
| 102 | }
|
|---|
| 103 | } else {
|
|---|
| 104 | PyObject *object2 = PyObject_GetAttrString(object, trace);
|
|---|
| 105 | Py_DECREF(object);
|
|---|
| 106 | object = object2;
|
|---|
| 107 | }
|
|---|
| 108 | if (!object) {
|
|---|
| 109 | goto EXIT;
|
|---|
| 110 | }
|
|---|
| 111 |
|
|---|
| 112 | trace = dot;
|
|---|
| 113 | }
|
|---|
| 114 |
|
|---|
| 115 | if (PyCObject_Check(object)) {
|
|---|
| 116 | PyCObject *cobject = (PyCObject *)object;
|
|---|
| 117 | return_value = cobject->cobject;
|
|---|
| 118 | } else {
|
|---|
| 119 | PyErr_Format(PyExc_AttributeError,
|
|---|
| 120 | "PyCapsule_Import \"%s\" is not valid",
|
|---|
| 121 | name);
|
|---|
| 122 | }
|
|---|
| 123 |
|
|---|
| 124 | EXIT:
|
|---|
| 125 | Py_XDECREF(object);
|
|---|
| 126 | if (name_dup) {
|
|---|
| 127 | PyMem_FREE(name_dup);
|
|---|
| 128 | }
|
|---|
| 129 | return return_value;
|
|---|
| 130 | }
|
|---|
| 131 |
|
|---|
| 132 | #endif /* #if PY_VERSION_HEX < 0x02070000 */
|
|---|
| 133 |
|
|---|
| 134 | #endif /* __CAPSULETHUNK_H */
|
|---|
