bpo-41103: Remove old buffer protocol support (#21117)

They are deprecated since Python 3.0.

1 files changed, 0 insertions, 79 deletions

diff --git a/Objects/abstract.c b/Objects/abstract.c
index b9e7111..0d3f4ac 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -292,85 +292,6 @@ PyObject_CheckBuffer(PyObject *obj)
 }
 
 
-/* We release the buffer right after use of this function which could
-   cause issues later on.  Don't use these functions in new code.
- */
-int
-PyObject_CheckReadBuffer(PyObject *obj)
-{
-    PyBufferProcs *pb = Py_TYPE(obj)->tp_as_buffer;
-    Py_buffer view;
-
-    if (pb == NULL ||
-        pb->bf_getbuffer == NULL)
-        return 0;
-    if ((*pb->bf_getbuffer)(obj, &view, PyBUF_SIMPLE) == -1) {
-        PyErr_Clear();
-        return 0;
-    }
-    PyBuffer_Release(&view);
-    return 1;
-}
-
-static int
-as_read_buffer(PyObject *obj, const void **buffer, Py_ssize_t *buffer_len)
-{
-    Py_buffer view;
-
-    if (obj == NULL || buffer == NULL || buffer_len == NULL) {
-        null_error();
-        return -1;
-    }
-    if (PyObject_GetBuffer(obj, &view, PyBUF_SIMPLE) != 0)
-        return -1;
-
-    *buffer = view.buf;
-    *buffer_len = view.len;
-    PyBuffer_Release(&view);
-    return 0;
-}
-
-int
-PyObject_AsCharBuffer(PyObject *obj,
-                      const char **buffer,
-                      Py_ssize_t *buffer_len)
-{
-    return as_read_buffer(obj, (const void **)buffer, buffer_len);
-}
-
-int PyObject_AsReadBuffer(PyObject *obj,
-                          const void **buffer,
-                          Py_ssize_t *buffer_len)
-{
-    return as_read_buffer(obj, buffer, buffer_len);
-}
-
-int PyObject_AsWriteBuffer(PyObject *obj,
-                           void **buffer,
-                           Py_ssize_t *buffer_len)
-{
-    PyBufferProcs *pb;
-    Py_buffer view;
-
-    if (obj == NULL || buffer == NULL || buffer_len == NULL) {
-        null_error();
-        return -1;
-    }
-    pb = Py_TYPE(obj)->tp_as_buffer;
-    if (pb == NULL ||
-        pb->bf_getbuffer == NULL ||
-        ((*pb->bf_getbuffer)(obj, &view, PyBUF_WRITABLE) != 0)) {
-        PyErr_SetString(PyExc_TypeError,
-                        "expected a writable bytes-like object");
-        return -1;
-    }
-
-    *buffer = view.buf;
-    *buffer_len = view.len;
-    PyBuffer_Release(&view);
-    return 0;
-}
-
 /* Buffer C-API for Python 3.0 */
 
 int