Viewing file:  memoryobject.h (2.22 KB) -rw-r--r--
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#ifndef Py_CPYTHON_MEMORYOBJECT_H
# error "this header file must not be included directly"
#endif
PyAPI_DATA(PyTypeObject) _PyManagedBuffer_Type;
/* The structs are declared here so that macros can work, but they shouldn't
be considered public. Don't access their fields directly, use the macros
and functions instead! */
#define _Py_MANAGED_BUFFER_RELEASED 0x001 /* access to exporter blocked */
#define _Py_MANAGED_BUFFER_FREE_FORMAT 0x002 /* free format */
typedef struct {
PyObject_HEAD
int flags; /* state flags */
Py_ssize_t exports; /* number of direct memoryview exports */
Py_buffer master; /* snapshot buffer obtained from the original exporter */
} _PyManagedBufferObject;
/* memoryview state flags */
#define _Py_MEMORYVIEW_RELEASED 0x001 /* access to master buffer blocked */
#define _Py_MEMORYVIEW_C 0x002 /* C-contiguous layout */
#define _Py_MEMORYVIEW_FORTRAN 0x004 /* Fortran contiguous layout */
#define _Py_MEMORYVIEW_SCALAR 0x008 /* scalar: ndim = 0 */
#define _Py_MEMORYVIEW_PIL 0x010 /* PIL-style layout */
#define _Py_MEMORYVIEW_RESTRICTED 0x020 /* Disallow new references to the memoryview's buffer */
typedef struct {
PyObject_VAR_HEAD
_PyManagedBufferObject *mbuf; /* managed buffer */
Py_hash_t hash; /* hash value for read-only views */
int flags; /* state flags */
Py_ssize_t exports; /* number of buffer re-exports */
Py_buffer view; /* private copy of the exporter's view */
PyObject *weakreflist;
Py_ssize_t ob_array[1]; /* shape, strides, suboffsets */
} PyMemoryViewObject;
#define _PyMemoryView_CAST(op) _Py_CAST(PyMemoryViewObject*, op)
/* Get a pointer to the memoryview's private copy of the exporter's buffer. */
static inline Py_buffer* PyMemoryView_GET_BUFFER(PyObject *op) {
return (&_PyMemoryView_CAST(op)->view);
}
#define PyMemoryView_GET_BUFFER(op) PyMemoryView_GET_BUFFER(_PyObject_CAST(op))
/* Get a pointer to the exporting object (this may be NULL!). */
static inline PyObject* PyMemoryView_GET_BASE(PyObject *op) {
return _PyMemoryView_CAST(op)->view.obj;
}
#define PyMemoryView_GET_BASE(op) PyMemoryView_GET_BASE(_PyObject_CAST(op))
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