cpython/Include/cpython/memoryobject.h at 3.14 · python/cpython · GitHub

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#ifndef Py_CPYTHON_MEMORYOBJECT_H

# error "this header file must not be included directly"

#endif

/* 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))

cpython/Include/cpython/memoryobject.h at 3.14 · python/cpython · GitHub

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cpython/Include/cpython/memoryobject.h at 3.14 · python/cpython · GitHub

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