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Merged in py3k-buffer branch to main line. All objects now use the buffer protocol in PEP 3118.

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This commit is contained in:
Travis E. Oliphant 2007-08-18 11:21:56 +00:00
parent 3de862df45
commit b99f762f10
22 changed files with 1732 additions and 688 deletions
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47
Objects/stringobject.c
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@ -1171,44 +1171,10 @@ string_subscript(PyStringObject* self, PyObject* item)
}
}
static Py_ssize_t
string_buffer_getreadbuf(PyStringObject *self, Py_ssize_t index, const void **ptr)
static int
string_buffer_getbuffer(PyStringObject *self, PyBuffer *view, int flags)
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError,
"accessing non-existent string segment");
return -1;
}
*ptr = (void *)self->ob_sval;
return Py_Size(self);
}
static Py_ssize_t
string_buffer_getwritebuf(PyStringObject *self, Py_ssize_t index, const void **ptr)
{
PyErr_SetString(PyExc_TypeError,
"Cannot use string as modifiable buffer");
return -1;
}
static Py_ssize_t
string_buffer_getsegcount(PyStringObject *self, Py_ssize_t *lenp)
{
if ( lenp )
*lenp = Py_Size(self);
return 1;
}
static Py_ssize_t
string_buffer_getcharbuf(PyStringObject *self, Py_ssize_t index, const char **ptr)
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError,
"accessing non-existent string segment");
return -1;
}
*ptr = self->ob_sval;
return Py_Size(self);
return PyBuffer_FillInfo(view, (void *)self->ob_sval, Py_Size(self), 0, flags);
}
static PySequenceMethods string_as_sequence = {
@ -1229,14 +1195,11 @@ static PyMappingMethods string_as_mapping = {
};
static PyBufferProcs string_as_buffer = {
(readbufferproc)string_buffer_getreadbuf,
(writebufferproc)string_buffer_getwritebuf,
(segcountproc)string_buffer_getsegcount,
(charbufferproc)string_buffer_getcharbuf,
(getbufferproc)string_buffer_getbuffer,
NULL,
};
#define LEFTSTRIP 0
#define RIGHTSTRIP 1
#define BOTHSTRIP 2