Author: Matti Picus <[email protected]>
Branch: issue2444
Changeset: r89028:c8c4d41979cd
Date: 2016-12-12 18:43 +0200
http://bitbucket.org/pypy/pypy/changeset/c8c4d41979cd/
Log: test for calling bf_releasebuffer, pases with -A
diff --git a/pypy/module/cpyext/test/test_bufferobject.py
b/pypy/module/cpyext/test/test_bufferobject.py
--- a/pypy/module/cpyext/test/test_bufferobject.py
+++ b/pypy/module/cpyext/test/test_bufferobject.py
@@ -64,3 +64,57 @@
b = buffer(a)
assert module.roundtrip(b) == 'text'
+ def test_releasebuffer(self):
+ module = self.import_extension('foo', [
+ ("create_test", "METH_NOARGS",
+ """
+ PyObject *obj;
+ obj = PyObject_New(PyObject, (PyTypeObject*)type);
+ return obj;
+ """),
+ ("get_cnt", "METH_NOARGS",
+ 'return PyLong_FromLong(cnt);')], prologue="""
+ static float test_data = 42.f;
+ static int cnt=0;
+ static PyHeapTypeObject * type=NULL;
+
+ int getbuffer(PyObject *obj, Py_buffer *view, int flags) {
+
+ cnt ++;
+ memset(view, 0, sizeof(Py_buffer));
+ view->obj = obj;
+ view->ndim = 0;
+ view->buf = (void *) &test_data;
+ view->itemsize = sizeof(float);
+ view->len = 1;
+ view->strides = NULL;
+ view->shape = NULL;
+ view->format = "f";
+ return 0;
+ }
+
+ void releasebuffer(PyObject *obj, Py_buffer *view) {
+ cnt --;
+ }
+ """, more_init="""
+ type = (PyHeapTypeObject *) PyType_Type.tp_alloc(&PyType_Type,
0);
+
+ type->ht_type.tp_name = "Test";
+ type->ht_type.tp_basicsize = sizeof(PyObject);
+ type->ht_name = PyString_FromString("Test");
+ type->ht_type.tp_flags |= Py_TPFLAGS_DEFAULT |
Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE |
Py_TPFLAGS_HAVE_NEWBUFFER;
+ type->ht_type.tp_flags &= ~Py_TPFLAGS_HAVE_GC;
+
+ type->ht_type.tp_as_buffer = &type->as_buffer;
+ type->as_buffer.bf_getbuffer = getbuffer;
+ type->as_buffer.bf_releasebuffer = releasebuffer;
+
+ if (PyType_Ready(&type->ht_type) < 0) INITERROR;
+ """, )
+ import gc
+ assert module.get_cnt() == 0
+ a = memoryview(module.create_test())
+ assert module.get_cnt() == 1
+ del a
+ assert module.get_cnt() == 0
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