diff options
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Include/memoryobject.h')
-rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Include/memoryobject.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Include/memoryobject.h b/AppPkg/Applications/Python/Python-2.7.10/Include/memoryobject.h new file mode 100644 index 0000000000..ca5064e985 --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Include/memoryobject.h @@ -0,0 +1,74 @@ +/* Memory view object. In Python this is available as "memoryview". */
+
+#ifndef Py_MEMORYOBJECT_H
+#define Py_MEMORYOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+PyAPI_DATA(PyTypeObject) PyMemoryView_Type;
+
+#define PyMemoryView_Check(op) (Py_TYPE(op) == &PyMemoryView_Type)
+
+/* Get a pointer to the underlying Py_buffer of a memoryview object. */
+#define PyMemoryView_GET_BUFFER(op) (&((PyMemoryViewObject *)(op))->view)
+/* Get a pointer to the PyObject from which originates a memoryview object. */
+#define PyMemoryView_GET_BASE(op) (((PyMemoryViewObject *)(op))->view.obj)
+
+
+PyAPI_FUNC(PyObject *) PyMemoryView_GetContiguous(PyObject *base,
+ int buffertype,
+ char fort);
+
+ /* Return a contiguous chunk of memory representing the buffer
+ from an object in a memory view object. If a copy is made then the
+ base object for the memory view will be a *new* bytes object.
+
+ Otherwise, the base-object will be the object itself and no
+ data-copying will be done.
+
+ The buffertype argument can be PyBUF_READ, PyBUF_WRITE,
+ PyBUF_SHADOW to determine whether the returned buffer
+ should be READONLY, WRITABLE, or set to update the
+ original buffer if a copy must be made. If buffertype is
+ PyBUF_WRITE and the buffer is not contiguous an error will
+ be raised. In this circumstance, the user can use
+ PyBUF_SHADOW to ensure that a a writable temporary
+ contiguous buffer is returned. The contents of this
+ contiguous buffer will be copied back into the original
+ object after the memoryview object is deleted as long as
+ the original object is writable and allows setting an
+ exclusive write lock. If this is not allowed by the
+ original object, then a BufferError is raised.
+
+ If the object is multi-dimensional and if fortran is 'F',
+ the first dimension of the underlying array will vary the
+ fastest in the buffer. If fortran is 'C', then the last
+ dimension will vary the fastest (C-style contiguous). If
+ fortran is 'A', then it does not matter and you will get
+ whatever the object decides is more efficient.
+
+ A new reference is returned that must be DECREF'd when finished.
+ */
+
+PyAPI_FUNC(PyObject *) PyMemoryView_FromObject(PyObject *base);
+
+PyAPI_FUNC(PyObject *) PyMemoryView_FromBuffer(Py_buffer *info);
+ /* create new if bufptr is NULL
+ will be a new bytesobject in base */
+
+
+/* The struct is declared here so that macros can work, but it shouldn't
+ be considered public. Don't access those fields directly, use the macros
+ and functions instead! */
+typedef struct {
+ PyObject_HEAD
+ PyObject *base;
+ Py_buffer view;
+} PyMemoryViewObject;
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_MEMORYOBJECT_H */
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