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Checkin of Jack's buffer mods.

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Not really checked, but didn't fail any tests either...
This commit is contained in:
Guido van Rossum 1997-05-05 22:15:02 +00:00
parent 8290e07509
commit fdf95dd525
5 changed files with 232 additions and 27 deletions
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53
Modules/arraymodule.c
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@ -1169,6 +1169,44 @@ array_repr(a)
return s;
}
static int
array_buffer_getreadbuf(self, index, ptr)
arrayobject *self;
int index;
const void **ptr;
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError, "Accessing non-existent array segment");
return -1;
}
*ptr = (void *)self->ob_item;
return self->ob_size*self->ob_descr->itemsize;
}
static int
array_buffer_getwritebuf(self, index, ptr)
arrayobject *self;
int index;
const void **ptr;
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError, "Accessing non-existent array segment");
return -1;
}
*ptr = (void *)self->ob_item;
return self->ob_size*self->ob_descr->itemsize;
}
static int
array_buffer_getsegcount(self, lenp)
arrayobject *self;
int *lenp;
{
if ( lenp )
*lenp = self->ob_size*self->ob_descr->itemsize;
return 1;
}
static PySequenceMethods array_as_sequence = {
(inquiry)array_length, /*sq_length*/
(binaryfunc)array_concat, /*sq_concat*/
@ -1179,6 +1217,13 @@ static PySequenceMethods array_as_sequence = {
(intintobjargproc)array_ass_slice, /*sq_ass_slice*/
};
static PyBufferProcs array_as_buffer = {
(getreadbufferproc)array_buffer_getreadbuf,
(getwritebufferproc)array_buffer_getwritebuf,
(getsegcountproc)array_buffer_getsegcount,
};
statichere PyTypeObject Arraytype = {
PyObject_HEAD_INIT(&PyType_Type)
0,
@ -1194,6 +1239,14 @@ statichere PyTypeObject Arraytype = {
0, /*tp_as_number*/
&array_as_sequence, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash*/
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
&array_as_buffer, /*tp_as_buffer*/
0, /*tp_xxx4*/
0, /*tp_doc*/
};