/* -*-c-*-
- *
- * $Id$
*
* Reading and writing buffers of stuff
*
* (c) 2005 Straylight/Edgeware
*/
-/*----- Licensing notice --------------------------------------------------*
+/*----- Licensing notice --------------------------------------------------*
*
* This file is part of the Python interface to Catacomb.
*
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* Catacomb/Python is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with Catacomb/Python; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
typedef struct buf_pyobj {
PyObject_HEAD
buf b;
+ PyObject *sub;
} buf_pyobj;
static PyTypeObject *rbuf_pytype, *wbuf_pytype;
#define RBUF_PYCHECK(o) PyObject_TypeCheck((o), rbuf_pytype)
#define WBUF_PYCHECK(o) PyObject_TypeCheck((o), wbuf_pytype)
#define BUF_B(o) (&((buf_pyobj *)(o))->b)
+#define BUF_SUB(o) (((buf_pyobj *)(o))->sub)
/*----- Exceptions --------------------------------------------------------*/
if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &n))
goto end;
- me = (buf_pyobj *)ty->tp_alloc(ty, 0);
q = xmalloc(n);
memcpy(q, p, n);
+ me = (buf_pyobj *)ty->tp_alloc(ty, 0);
+ me->sub = 0;
buf_init(&me->b, q, n);
end:
return ((PyObject *)me);
}
static void buf_pydealloc(PyObject *me)
- { xfree(BBASE(BUF_B(me))); FREEOBJ(me); }
+{
+ if (BUF_SUB(me))
+ Py_DECREF(BUF_SUB(me));
+ else
+ xfree(BBASE(BUF_B(me)));
+ FREEOBJ(me);
+}
static int rbuf_pysegcount(PyObject *me, int *nn)
{ if (nn) *nn = BSZ(BUF_B(me)); return (1); }
static int rbuf_pyreadbuf(PyObject *me, int seg, void **q)
- { assert(seg == 0); *q = BBASE(BUF_B(me)); return (BSZ(BUF_B(me))); }
+ { assert(seg == 0); *q = BCUR(BUF_B(me)); return (BLEFT(BUF_B(me))); }
static PyObject *rbmeth_skip(PyObject *me, PyObject *arg)
{
uint##n x; \
if (!PyArg_ParseTuple(arg, ":getu" #w)) goto end; \
if (buf_getu##w(BUF_B(me), &x)) BUFERR(); \
- return (getu32(x)); \
+ return (getulong(x)); \
end: \
return (0); \
}
}
BUF_DOSUFFIXES(RBMETH_GETBLK_)
+#define RBMETH_GETBUF_(n, W, w) \
+ static PyObject *rbmeth_getbuf##w(PyObject *me, PyObject *arg) \
+ { \
+ buf_pyobj *b; \
+ buf bb; \
+ if (!PyArg_ParseTuple(arg, ":getbuf" #w)) goto end; \
+ if (buf_getbuf##w(BUF_B(me), &bb)) BUFERR(); \
+ b = PyObject_NEW(buf_pyobj, rbuf_pytype); \
+ b->b = bb; \
+ b->sub = me; \
+ Py_INCREF(me); \
+ return ((PyObject *)b); \
+ end: \
+ return (0); \
+ }
+BUF_DOSUFFIXES(RBMETH_GETBUF_)
+
static PyObject *rbmeth_getmp(PyObject *me, PyObject *arg)
{
mp *x;
end:
return (0);
}
-
+
static PyObject *rbmeth_getecptraw(PyObject *me, PyObject *arg)
{
PyTypeObject *cobj = ecpt_pytype;
{ return (PyInt_FromLong(BLEFT(BUF_B(me)))); }
static PyObject *rbget_endp(PyObject *me, void *hunoz)
{ return (getbool(!BLEFT(BUF_B(me)))); }
+static PyObject *rbget_offset(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(BLEN(BUF_B(me)))); }
+static int rbset_offset(PyObject *me, PyObject *x, void *hunoz)
+{
+ size_t n;
+ if (!x) NIERR("__del__");
+ if (!convszt(x, &n)) goto end;
+ if (n > BSZ(BUF_B(me))) VALERR("out of range");
+ BCUR(BUF_B(me)) = BBASE(BUF_B(me)) + n;
+ return (0);
+end:
+ return (-1);
+}
static PyGetSetDef rbuf_pygetset[] = {
#define GETSETNAME(op, name) rb##op##_##name
GET (size, "RBUF.size -> SIZE")
GET (left, "RBUF.left -> REMAINDER")
GET (endp, "RBUF.endp -> BOOL")
+ GETSET(offset, "RBUF.offset -> OFFSET")
#undef GETSETNAME
{ 0 }
};
#define RBMETH_DECL_GETBLK_(n, W, w) \
METH(getblk##w, "RBUF.getblk" #w "() -> INT")
BUF_DOSUFFIXES(RBMETH_DECL_GETBLK_)
+#define RBMETH_DECL_GETBUF_(n, W, w) \
+ METH(getbuf##w, "RBUF.getbuf" #w "() -> INT")
+ BUF_DOSUFFIXES(RBMETH_DECL_GETBUF_)
METH (getmp, "RBUF.getmp() -> X")
METH (getgf, "RBUF.getgf() -> X")
KWMETH(getecpt, "RBUF.getecpt(curve = None) -> P")
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
rbuf_pymethods, /* @tp_methods@ */
0, /* @tp_members@ */
rbuf_pygetset, /* @tp_getset@ */
if (BLEFT(b) < n) {
size_t nn = BSZ(b);
octet *p;
- size_t want = BLEFT(b) + n;
+ size_t want = BLEN(b) + n;
while (nn < want) nn <<= 1;
p = xrealloc(BBASE(b), nn, BSZ(b));
BCUR(b) = p + BLEN(b);
goto end;
me = (buf_pyobj *)ty->tp_alloc(ty, 0);
p = xmalloc(n);
+ me->sub = 0;
buf_init(&me->b, p, n);
end:
return ((PyObject *)me);
static PyMethodDef wbuf_pymethods[] = {
#define METHNAME(func) wbmeth_##func
- METH (zero, "WBUF.skip(N)")
+ METH (zero, "WBUF.zero(N)")
METH (put, "WBUF.put(BYTES)")
#define WBMETH_DECL_PUTU_(n, W, w) \
METH(putu##w, "WBUF.putu" #w "(INT)")
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
wbuf_pymethods, /* @tp_methods@ */
0, /* @tp_members@ */
wbuf_pygetset, /* @tp_getset@ */
~mdw / catacomb-python / blobdiff