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gh-79315: Add Include/cpython/memoryobject.h header (#99723)

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Move non-limited C API from Include/memoryobject.h to a new
Include/cpython/memoryobject.h header file.
This commit is contained in:
Victor Stinner 2022-11-23 15:44:42 +01:00 committed by GitHub
parent 81f7359f67
commit 55bad199cf
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 50 additions and 41 deletions
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42
Include/cpython/memoryobject.h Normal file
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@ -0,0 +1,42 @@
#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 */
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;
/* Get a pointer to the memoryview's private copy of the exporter's buffer. */
#define PyMemoryView_GET_BUFFER(op) (&((PyMemoryViewObject *)(op))->view)
/* Get a pointer to the exporting object (this may be NULL!). */
#define PyMemoryView_GET_BASE(op) (((PyMemoryViewObject *)(op))->view.obj)

44
Include/memoryobject.h
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@ -6,20 +6,10 @@
extern "C" {
#endif
#ifndef Py_LIMITED_API
PyAPI_DATA(PyTypeObject) _PyManagedBuffer_Type;
#endif
PyAPI_DATA(PyTypeObject) PyMemoryView_Type;
#define PyMemoryView_Check(op) Py_IS_TYPE((op), &PyMemoryView_Type)
#ifndef Py_LIMITED_API
/* Get a pointer to the memoryview's private copy of the exporter's buffer. */
#define PyMemoryView_GET_BUFFER(op) (&((PyMemoryViewObject *)(op))->view)
/* Get a pointer to the exporting object (this may be NULL!). */
#define PyMemoryView_GET_BASE(op) (((PyMemoryViewObject *)(op))->view.obj)
#endif
PyAPI_FUNC(PyObject *) PyMemoryView_FromObject(PyObject *base);
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
PyAPI_FUNC(PyObject *) PyMemoryView_FromMemory(char *mem, Py_ssize_t size,
@ -32,38 +22,10 @@ PyAPI_FUNC(PyObject *) PyMemoryView_GetContiguous(PyObject *base,
int buffertype,
char order);
/* 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! */
#ifndef Py_LIMITED_API
#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 */
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 Py_CPYTHON_MEMORYOBJECT_H
# include "cpython/memoryobject.h"
# undef Py_CPYTHON_MEMORYOBJECT_H
#endif
#ifdef __cplusplus

1
Makefile.pre.in
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@ -1585,6 +1585,7 @@ PYTHON_HEADERS= \
$(srcdir)/Include/cpython/listobject.h \
$(srcdir)/Include/cpython/longintrepr.h \
$(srcdir)/Include/cpython/longobject.h \
$(srcdir)/Include/cpython/memoryobject.h \
$(srcdir)/Include/cpython/methodobject.h \
$(srcdir)/Include/cpython/modsupport.h \
$(srcdir)/Include/cpython/object.h \

1
PCbuild/pythoncore.vcxproj
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@ -155,6 +155,7 @@
<ClInclude Include="..\Include\cpython\listobject.h" />
<ClInclude Include="..\Include\cpython\longintrepr.h" />
<ClInclude Include="..\Include\cpython\longobject.h" />
<ClInclude Include="..\Include\cpython\memoryobject.h" />
<ClInclude Include="..\Include\cpython\methodobject.h" />
<ClInclude Include="..\Include\cpython\modsupport.h" />
<ClInclude Include="..\Include\cpython\object.h" />

3
PCbuild/pythoncore.vcxproj.filters
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@ -384,6 +384,9 @@
<ClInclude Include="..\Include\cpython\longobject.h">
<Filter>Include</Filter>
</ClInclude>
<ClInclude Include="..\Include\cpython\memoryobject.h">
<Filter>Include</Filter>
</ClInclude>
<ClInclude Include="..\Include\cpython\odictobject.h">
<Filter>Include</Filter>
</ClInclude>