Add necessary headers to back-port new buffer protocol to Python 2.6
diff --git a/Include/object.h b/Include/object.h
index 8d04935..bf0f625 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -151,6 +151,8 @@
typedef int(*ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *);
typedef int(*objobjargproc)(PyObject *, PyObject *, PyObject *);
+
+
/* int-based buffer interface */
typedef int (*getreadbufferproc)(PyObject *, int, void **);
typedef int (*getwritebufferproc)(PyObject *, int, void **);
@@ -162,6 +164,67 @@
typedef Py_ssize_t (*segcountproc)(PyObject *, Py_ssize_t *);
typedef Py_ssize_t (*charbufferproc)(PyObject *, Py_ssize_t, char **);
+/* Py3k buffer interface */
+
+typedef struct bufferinfo {
+ void *buf;
+ Py_ssize_t len;
+ Py_ssize_t itemsize; /* This is Py_ssize_t so it can be
+ pointed to by strides in simple case.*/
+ int readonly;
+ int ndim;
+ char *format;
+ Py_ssize_t *shape;
+ Py_ssize_t *strides;
+ Py_ssize_t *suboffsets;
+ void *internal;
+} Py_buffer;
+
+typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);
+typedef void (*releasebufferproc)(PyObject *, Py_buffer *);
+
+ /* Flags for getting buffers */
+#define PyBUF_SIMPLE 0
+#define PyBUF_WRITABLE 0x0001
+/* we used to include an E, backwards compatible alias */
+#define PyBUF_WRITEABLE PyBUF_WRITABLE
+#define PyBUF_LOCK 0x0002
+#define PyBUF_FORMAT 0x0004
+#define PyBUF_ND 0x0008
+#define PyBUF_STRIDES (0x0010 | PyBUF_ND)
+#define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES)
+#define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES)
+#define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES)
+#define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES)
+
+#define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE)
+#define PyBUF_CONTIG_RO (PyBUF_ND)
+#define PyBUF_CONTIG_LCK (PyBUF_ND | PyBUF_LOCK)
+#define PyBUF_CONTIG_XLCK (PyBUF_ND | PyBUF_LOCK | PyBUF_WRITABLE)
+
+#define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE)
+#define PyBUF_STRIDED_RO (PyBUF_STRIDES)
+#define PyBUF_STRIDED_LCK (PyBUF_STRIDES | PyBUF_LOCK)
+#define PyBUF_STRIDED_XLCK (PyBUF_STRIDES | PyBUF_LOCK | PyBUF_WRITABLE)
+
+#define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT)
+#define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT)
+#define PyBUF_RECORDS_LCK (PyBUF_STRIDES | PyBUF_LOCK | PyBUF_FORMAT)
+#define PyBUF_RECORDS_XLCK (PyBUF_STRIDES | PyBUF_LOCK | PyBUF_WRITABLE \
+ | PyBUF_FORMAT)
+
+#define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT)
+#define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT)
+#define PyBUF_FULL_LCK (PyBUF_INDIRECT | PyBUF_LOCK | PyBUF_FORMAT)
+#define PyBUF_FULL_XLCK (PyBUF_INDIRECT | PyBUF_LOCK | PyBUF_WRITABLE \
+ | PyBUF_FORMAT)
+
+
+#define PyBUF_READ 0x100
+#define PyBUF_WRITE 0x200
+#define PyBUF_SHADOW 0x400
+/* end Py3k buffer interface */
+
typedef int (*objobjproc)(PyObject *, PyObject *);
typedef int (*visitproc)(PyObject *, void *);
typedef int (*traverseproc)(PyObject *, visitproc, void *);
@@ -247,6 +310,8 @@
writebufferproc bf_getwritebuffer;
segcountproc bf_getsegcount;
charbufferproc bf_getcharbuffer;
+ getbufferproc bf_getbuffer;
+ releasebufferproc bf_releasebuffer;
} PyBufferProcs;
@@ -540,6 +605,9 @@
/* Type is abstract and cannot be instantiated */
#define Py_TPFLAGS_IS_ABSTRACT (1L<<20)
+/* Has the new buffer protocol */
+#define Py_TPFLAGS_HAVE_NEWBUFFER (1L<<21)
+
/* These flags are used to determine if a type is a subclass. */
#define Py_TPFLAGS_INT_SUBCLASS (1L<<23)
#define Py_TPFLAGS_LONG_SUBCLASS (1L<<24)