#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))