46e6ad89 |
1 | /* -*-c-*- |
46e6ad89 |
2 | * |
3 | * Reading and writing buffers of stuff |
4 | * |
5 | * (c) 2005 Straylight/Edgeware |
6 | */ |
7 | |
b2687a0a |
8 | /*----- Licensing notice --------------------------------------------------* |
46e6ad89 |
9 | * |
10 | * This file is part of the Python interface to Catacomb. |
11 | * |
12 | * Catacomb/Python is free software; you can redistribute it and/or modify |
13 | * it under the terms of the GNU General Public License as published by |
14 | * the Free Software Foundation; either version 2 of the License, or |
15 | * (at your option) any later version. |
b2687a0a |
16 | * |
46e6ad89 |
17 | * Catacomb/Python is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | * GNU General Public License for more details. |
b2687a0a |
21 | * |
46e6ad89 |
22 | * You should have received a copy of the GNU General Public License |
23 | * along with Catacomb/Python; if not, write to the Free Software Foundation, |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
25 | */ |
26 | |
27 | /*----- Header files ------------------------------------------------------*/ |
28 | |
29 | #include "catacomb-python.h" |
30 | |
31 | /*----- Data structures ---------------------------------------------------*/ |
32 | |
33 | typedef struct buf_pyobj { |
34 | PyObject_HEAD |
35 | buf b; |
0463996f |
36 | PyObject *sub; |
46e6ad89 |
37 | } buf_pyobj; |
38 | |
39 | static PyTypeObject *rbuf_pytype, *wbuf_pytype; |
40 | #define RBUF_PYCHECK(o) PyObject_TypeCheck((o), rbuf_pytype) |
41 | #define WBUF_PYCHECK(o) PyObject_TypeCheck((o), wbuf_pytype) |
42 | #define BUF_B(o) (&((buf_pyobj *)(o))->b) |
0463996f |
43 | #define BUF_SUB(o) (((buf_pyobj *)(o))->sub) |
46e6ad89 |
44 | |
45 | /*----- Exceptions --------------------------------------------------------*/ |
46 | |
47 | static PyObject *buferr; |
48 | |
49 | #define BUFERR() do { PyErr_SetNone(buferr); goto end; } while (0) |
50 | |
51 | /*----- Read buffers ------------------------------------------------------*/ |
52 | |
53 | static PyObject *rbuf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
54 | { |
55 | char *p, *q; |
6b54260d |
56 | Py_ssize_t n; |
46e6ad89 |
57 | buf_pyobj *me = 0; |
58 | static char *kwlist[] = { "data", 0 }; |
59 | |
60 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &n)) |
61 | goto end; |
46e6ad89 |
62 | q = xmalloc(n); |
63 | memcpy(q, p, n); |
0463996f |
64 | me = (buf_pyobj *)ty->tp_alloc(ty, 0); |
65 | me->sub = 0; |
46e6ad89 |
66 | buf_init(&me->b, q, n); |
67 | end: |
68 | return ((PyObject *)me); |
69 | } |
70 | |
71 | static void buf_pydealloc(PyObject *me) |
0463996f |
72 | { |
73 | if (BUF_SUB(me)) |
74 | Py_DECREF(BUF_SUB(me)); |
75 | else |
76 | xfree(BBASE(BUF_B(me))); |
77 | FREEOBJ(me); |
78 | } |
46e6ad89 |
79 | |
3d8f5f7c |
80 | static Py_ssize_t rbuf_pysegcount(PyObject *me, Py_ssize_t *nn) |
46e6ad89 |
81 | { if (nn) *nn = BSZ(BUF_B(me)); return (1); } |
82 | |
3d8f5f7c |
83 | static Py_ssize_t rbuf_pyreadbuf(PyObject *me, Py_ssize_t seg, void **q) |
f368b46e |
84 | { assert(seg == 0); *q = BCUR(BUF_B(me)); return (BLEFT(BUF_B(me))); } |
46e6ad89 |
85 | |
86 | static PyObject *rbmeth_skip(PyObject *me, PyObject *arg) |
87 | { |
88 | size_t n; |
89 | |
90 | if (!PyArg_ParseTuple(arg, "O&:skip", convszt, &n)) goto end; |
91 | if (!buf_get(BUF_B(me), n)) BUFERR(); |
92 | RETURN_ME; |
93 | end: |
94 | return (0); |
95 | } |
96 | |
97 | static PyObject *rbmeth_get(PyObject *me, PyObject *arg) |
98 | { |
99 | void *p; |
100 | size_t n; |
101 | |
102 | if (!PyArg_ParseTuple(arg, "O&:get", convszt, &n)) goto end; |
103 | if ((p = buf_get(BUF_B(me), n)) == 0) BUFERR(); |
104 | return (bytestring_pywrap(p, n)); |
105 | end: |
106 | return (0); |
107 | } |
108 | |
109 | #define RBMETH_GETU_(n, W, w) \ |
110 | static PyObject *rbmeth_getu##w(PyObject *me, PyObject *arg) \ |
111 | { \ |
112 | uint##n x; \ |
113 | if (!PyArg_ParseTuple(arg, ":getu" #w)) goto end; \ |
114 | if (buf_getu##w(BUF_B(me), &x)) BUFERR(); \ |
fbca05a1 |
115 | return (getulong(x)); \ |
46e6ad89 |
116 | end: \ |
117 | return (0); \ |
118 | } |
119 | DOUINTCONV(RBMETH_GETU_) |
120 | |
121 | #define RBMETH_GETBLK_(n, W, w) \ |
122 | static PyObject *rbmeth_getblk##w(PyObject *me, PyObject *arg) \ |
123 | { \ |
124 | size_t sz; \ |
125 | char *q; \ |
126 | if (!PyArg_ParseTuple(arg, ":getblk" #w)) goto end; \ |
127 | if ((q = buf_getmem##w(BUF_B(me), &sz)) == 0) BUFERR(); \ |
128 | return (bytestring_pywrap(q, sz)); \ |
129 | end: \ |
130 | return (0); \ |
131 | } |
132 | BUF_DOSUFFIXES(RBMETH_GETBLK_) |
133 | |
0463996f |
134 | #define RBMETH_GETBUF_(n, W, w) \ |
135 | static PyObject *rbmeth_getbuf##w(PyObject *me, PyObject *arg) \ |
136 | { \ |
137 | buf_pyobj *b; \ |
138 | buf bb; \ |
139 | if (!PyArg_ParseTuple(arg, ":getbuf" #w)) goto end; \ |
140 | if (buf_getbuf##w(BUF_B(me), &bb)) BUFERR(); \ |
141 | b = PyObject_NEW(buf_pyobj, rbuf_pytype); \ |
142 | b->b = bb; \ |
143 | b->sub = me; \ |
144 | Py_INCREF(me); \ |
145 | return ((PyObject *)b); \ |
146 | end: \ |
147 | return (0); \ |
148 | } |
149 | BUF_DOSUFFIXES(RBMETH_GETBUF_) |
150 | |
46e6ad89 |
151 | static PyObject *rbmeth_getmp(PyObject *me, PyObject *arg) |
152 | { |
153 | mp *x; |
154 | if (!PyArg_ParseTuple(arg, ":getmp")) goto end; |
155 | if ((x = buf_getmp(BUF_B(me))) == 0) BUFERR(); |
156 | return (mp_pywrap(x)); |
157 | end: |
158 | return (0); |
159 | } |
160 | |
161 | static PyObject *rbmeth_getgf(PyObject *me, PyObject *arg) |
162 | { |
163 | mp *x; |
164 | if (!PyArg_ParseTuple(arg, ":getgf")) goto end; |
165 | if ((x = buf_getmp(BUF_B(me))) == 0) BUFERR(); |
166 | return (gf_pywrap(x)); |
167 | end: |
168 | return (0); |
169 | } |
170 | |
171 | static PyObject *rbmeth_getecpt(PyObject *me, PyObject *arg, PyObject *kw) |
172 | { |
173 | PyObject *cobj = Py_None; |
174 | static char *kwlist[] = { "curve", 0 }; |
175 | ec pt = EC_INIT; |
176 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:getecpt", kwlist, &cobj)) |
177 | goto end; |
178 | if (cobj == Py_None) cobj = (PyObject *)ecpt_pytype; |
179 | if (!PyType_Check(cobj) || |
180 | !PyType_IsSubtype((PyTypeObject *)cobj, ecpt_pytype)) |
181 | TYERR("expected elliptic curve type"); |
182 | if (buf_getec(BUF_B(me), &pt)) BUFERR(); |
183 | return (ecpt_pywrapout(cobj, &pt)); |
184 | end: |
185 | return (0); |
186 | } |
b2687a0a |
187 | |
46e6ad89 |
188 | static PyObject *rbmeth_getecptraw(PyObject *me, PyObject *arg) |
189 | { |
190 | PyTypeObject *cobj = ecpt_pytype; |
191 | ec pt = EC_INIT; |
192 | if (!PyArg_ParseTuple(arg, "O!:getecptraw", eccurve_pytype, &cobj)) |
193 | goto end; |
194 | if (ec_getraw(ECCURVE_C(cobj), BUF_B(me), &pt)) BUFERR(); |
195 | return (ecpt_pywrapout(cobj, &pt)); |
196 | end: |
197 | return (0); |
198 | } |
199 | |
200 | static PyObject *rbmeth_getge(PyObject *me, PyObject *arg) |
201 | { |
202 | PyObject *gobj; |
203 | ge *x = 0; |
204 | if (!PyArg_ParseTuple(arg, "O!:getge", group_pytype, &gobj)) goto end; |
205 | x = G_CREATE(GROUP_G(gobj)); |
206 | if (G_FROMBUF(GROUP_G(gobj), BUF_B(me), x)) BUFERR(); |
207 | return (ge_pywrap(gobj, x)); |
208 | end: |
209 | if (x) G_DESTROY(GROUP_G(gobj), x); |
210 | return (0); |
211 | } |
212 | |
213 | static PyObject *rbmeth_getgeraw(PyObject *me, PyObject *arg) |
214 | { |
215 | PyObject *gobj; |
216 | ge *x = 0; |
217 | if (!PyArg_ParseTuple(arg, "O!:getgeraw", group_pytype, &gobj)) goto end; |
218 | x = G_CREATE(GROUP_G(gobj)); |
219 | if (G_FROMRAW(GROUP_G(gobj), BUF_B(me), x)) BUFERR(); |
220 | return (ge_pywrap(gobj, x)); |
221 | end: |
222 | if (x) G_DESTROY(GROUP_G(gobj), x); |
223 | return (0); |
224 | } |
225 | |
226 | static PyObject *rbget_size(PyObject *me, void *hunoz) |
227 | { return (PyInt_FromLong(BSZ(BUF_B(me)))); } |
228 | static PyObject *rbget_left(PyObject *me, void *hunoz) |
229 | { return (PyInt_FromLong(BLEFT(BUF_B(me)))); } |
230 | static PyObject *rbget_endp(PyObject *me, void *hunoz) |
231 | { return (getbool(!BLEFT(BUF_B(me)))); } |
0463996f |
232 | static PyObject *rbget_offset(PyObject *me, void *hunoz) |
233 | { return (PyInt_FromLong(BLEN(BUF_B(me)))); } |
234 | static int rbset_offset(PyObject *me, PyObject *x, void *hunoz) |
235 | { |
236 | size_t n; |
f368b46e |
237 | if (!x) NIERR("__del__"); |
0463996f |
238 | if (!convszt(x, &n)) goto end; |
239 | if (n > BSZ(BUF_B(me))) VALERR("out of range"); |
240 | BCUR(BUF_B(me)) = BBASE(BUF_B(me)) + n; |
241 | return (0); |
242 | end: |
243 | return (-1); |
244 | } |
46e6ad89 |
245 | |
246 | static PyGetSetDef rbuf_pygetset[] = { |
247 | #define GETSETNAME(op, name) rb##op##_##name |
248 | GET (size, "RBUF.size -> SIZE") |
249 | GET (left, "RBUF.left -> REMAINDER") |
250 | GET (endp, "RBUF.endp -> BOOL") |
0463996f |
251 | GETSET(offset, "RBUF.offset -> OFFSET") |
46e6ad89 |
252 | #undef GETSETNAME |
253 | { 0 } |
254 | }; |
255 | |
256 | static PyMethodDef rbuf_pymethods[] = { |
257 | #define METHNAME(func) rbmeth_##func |
258 | METH (skip, "RBUF.skip(N)") |
259 | METH (get, "RBUF.get(N) -> BYTES") |
260 | #define RBMETH_DECL_GETU_(n, W, w) \ |
261 | METH(getu##w, "RBUF.getu" #w "() -> INT") |
262 | DOUINTCONV(RBMETH_DECL_GETU_) |
263 | #define RBMETH_DECL_GETBLK_(n, W, w) \ |
264 | METH(getblk##w, "RBUF.getblk" #w "() -> INT") |
265 | BUF_DOSUFFIXES(RBMETH_DECL_GETBLK_) |
0463996f |
266 | #define RBMETH_DECL_GETBUF_(n, W, w) \ |
267 | METH(getbuf##w, "RBUF.getbuf" #w "() -> INT") |
268 | BUF_DOSUFFIXES(RBMETH_DECL_GETBUF_) |
46e6ad89 |
269 | METH (getmp, "RBUF.getmp() -> X") |
270 | METH (getgf, "RBUF.getgf() -> X") |
271 | KWMETH(getecpt, "RBUF.getecpt(curve = None) -> P") |
272 | METH (getecptraw, "RBUF.getecptraw(CURVE) -> P") |
273 | METH (getge, "RBUF.getge(GROUP) -> X") |
274 | METH (getgeraw, "RBUF.getgeraw(GROUP) -> X") |
275 | #undef METHNAME |
276 | { 0 } |
277 | }; |
278 | |
279 | static PyBufferProcs rbuf_pybuffer = { |
280 | rbuf_pyreadbuf, /* @bf_getreadbuffer@ */ |
281 | 0, /* @bf_getwritebuffer@ */ |
282 | rbuf_pysegcount, /* @bf_getsegcount@ */ |
283 | 0 /* @bf_getcharbuffer@ */ |
284 | }; |
285 | |
286 | static PyTypeObject rbuf_pytype_skel = { |
287 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 |
288 | "ReadBuffer", /* @tp_name@ */ |
46e6ad89 |
289 | sizeof(buf_pyobj), /* @tp_basicsize@ */ |
290 | 0, /* @tp_itemsize@ */ |
291 | |
292 | buf_pydealloc, /* @tp_dealloc@ */ |
293 | 0, /* @tp_print@ */ |
294 | 0, /* @tp_getattr@ */ |
295 | 0, /* @tp_setattr@ */ |
296 | 0, /* @tp_compare@ */ |
297 | 0, /* @tp_repr@ */ |
298 | 0, /* @tp_as_number@ */ |
299 | 0, /* @tp_as_sequence@ */ |
300 | 0, /* @tp_as_mapping@ */ |
301 | 0, /* @tp_hash@ */ |
302 | 0, /* @tp_call@ */ |
303 | 0, /* @tp_str@ */ |
304 | 0, /* @tp_getattro@ */ |
305 | 0, /* @tp_setattro@ */ |
306 | &rbuf_pybuffer, /* @tp_as_buffer@ */ |
307 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
308 | Py_TPFLAGS_BASETYPE, |
309 | |
310 | /* @tp_doc@ */ |
311 | "A read buffer.", |
312 | |
313 | 0, /* @tp_traverse@ */ |
314 | 0, /* @tp_clear@ */ |
315 | 0, /* @tp_richcompare@ */ |
316 | 0, /* @tp_weaklistoffset@ */ |
317 | 0, /* @tp_iter@ */ |
963a6148 |
318 | 0, /* @tp_iternext@ */ |
46e6ad89 |
319 | rbuf_pymethods, /* @tp_methods@ */ |
320 | 0, /* @tp_members@ */ |
321 | rbuf_pygetset, /* @tp_getset@ */ |
322 | 0, /* @tp_base@ */ |
323 | 0, /* @tp_dict@ */ |
324 | 0, /* @tp_descr_get@ */ |
325 | 0, /* @tp_descr_set@ */ |
326 | 0, /* @tp_dictoffset@ */ |
327 | 0, /* @tp_init@ */ |
328 | PyType_GenericAlloc, /* @tp_alloc@ */ |
329 | rbuf_pynew, /* @tp_new@ */ |
330 | 0, /* @tp_free@ */ |
331 | 0 /* @tp_is_gc@ */ |
332 | }; |
333 | |
334 | /*----- Write buffers -----------------------------------------------------*/ |
335 | |
336 | static void ensure(PyObject *me, size_t n) |
337 | { |
338 | buf *b = BUF_B(me); |
339 | |
340 | if (BLEFT(b) < n) { |
341 | size_t nn = BSZ(b); |
342 | octet *p; |
c4ca600f |
343 | size_t want = BLEN(b) + n; |
46e6ad89 |
344 | while (nn < want) nn <<= 1; |
345 | p = xrealloc(BBASE(b), nn, BSZ(b)); |
346 | BCUR(b) = p + BLEN(b); |
347 | BLIM(b) = p + nn; |
348 | BBASE(b) = p; |
349 | } |
350 | } |
351 | |
352 | static PyObject *wbuf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
353 | { |
354 | char *p; |
355 | size_t n = 64; |
356 | buf_pyobj *me = 0; |
357 | static char *kwlist[] = { "size", 0 }; |
358 | |
359 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, |
360 | convszt, &n)) |
361 | goto end; |
362 | me = (buf_pyobj *)ty->tp_alloc(ty, 0); |
363 | p = xmalloc(n); |
0463996f |
364 | me->sub = 0; |
46e6ad89 |
365 | buf_init(&me->b, p, n); |
366 | end: |
367 | return ((PyObject *)me); |
368 | } |
369 | |
3d8f5f7c |
370 | static Py_ssize_t wbuf_pysegcount(PyObject *me, Py_ssize_t *nn) |
46e6ad89 |
371 | { if (nn) *nn = BLEN(BUF_B(me)); return (1); } |
372 | |
3d8f5f7c |
373 | static Py_ssize_t wbuf_pyreadbuf(PyObject *me, Py_ssize_t seg, void **q) |
46e6ad89 |
374 | { assert(seg == 0); *q = BBASE(BUF_B(me)); return (BLEN(BUF_B(me))); } |
375 | |
376 | static PyObject *wbmeth_zero(PyObject *me, PyObject *arg) |
377 | { |
378 | void *p; |
379 | size_t n; |
380 | if (!PyArg_ParseTuple(arg, "O&:zero", convszt, &n)) return (0); |
381 | ensure(me, n); |
382 | p = buf_get(BUF_B(me), n); assert(p && BOK(BUF_B(me))); |
383 | memset(p, 0, n); |
384 | RETURN_ME; |
385 | } |
386 | |
387 | static PyObject *wbmeth_put(PyObject *me, PyObject *arg) |
388 | { |
389 | void *p; |
6b54260d |
390 | Py_ssize_t n; |
46e6ad89 |
391 | if (!PyArg_ParseTuple(arg, "s#:put", &p, &n)) return (0); |
392 | ensure(me, n); |
a1184906 |
393 | buf_put(BUF_B(me), p, n); assert(BOK(BUF_B(me))); |
46e6ad89 |
394 | RETURN_ME; |
395 | } |
396 | |
397 | #define WBMETH_PUTU_(n, W, w) \ |
398 | static PyObject *wbmeth_putu##w(PyObject *me, PyObject *arg) \ |
399 | { \ |
400 | uint##n i; \ |
401 | if (!PyArg_ParseTuple(arg, "O&:putu" #w, convu##n, &i)) return (0); \ |
402 | ensure(me, SZ_##n); \ |
403 | buf_putu##w(BUF_B(me), i); assert(BOK(BUF_B(me))); \ |
404 | RETURN_ME; \ |
405 | } |
406 | DOUINTCONV(WBMETH_PUTU_) |
407 | |
408 | #define SZ_z 1 |
409 | #define WBMETH_PUTBLK_(n, W, w) \ |
410 | static PyObject *wbmeth_putblk##w(PyObject *me, PyObject *arg) \ |
411 | { \ |
412 | char *p; \ |
6b54260d |
413 | Py_ssize_t sz; \ |
46e6ad89 |
414 | if (!PyArg_ParseTuple(arg, "s#:putblk" #w, &p, &sz)) return (0); \ |
415 | ensure(me, sz + SZ_##n); \ |
416 | buf_putmem##w(BUF_B(me), p, sz); assert(BOK(BUF_B(me))); \ |
417 | RETURN_ME; \ |
418 | } |
419 | BUF_DOSUFFIXES(WBMETH_PUTBLK_) |
420 | |
421 | static PyObject *wbmeth_putmp(PyObject *me, PyObject *arg) |
422 | { |
423 | mp *x = 0; |
424 | if (!PyArg_ParseTuple(arg, "O&:putmp", convmp, &x)) return (0); |
425 | ensure(me, mp_octets(x) + 2); |
426 | buf_putmp(BUF_B(me), x); assert(BOK(BUF_B(me))); |
427 | RETURN_ME; |
428 | } |
429 | |
430 | static PyObject *wbmeth_putgf(PyObject *me, PyObject *arg) |
431 | { |
432 | mp *x = 0; |
433 | if (!PyArg_ParseTuple(arg, "O&:putgf", convgf, &x)) return (0); |
434 | ensure(me, mp_octets(x) + 2); |
435 | buf_putmp(BUF_B(me), x); assert(BOK(BUF_B(me))); |
436 | MP_DROP(x); |
437 | RETURN_ME; |
438 | } |
439 | |
440 | static PyObject *wbmeth_putecpt(PyObject *me, PyObject *arg) |
441 | { |
442 | ec pt = EC_INIT; |
443 | if (!PyArg_ParseTuple(arg, "O&:putecpt", convecpt, &pt)) return (0); |
444 | if (EC_ATINF(&pt)) ensure(me, 2); |
445 | else ensure(me, 4 + mp_octets(pt.x) + mp_octets(pt.y)); |
446 | buf_putec(BUF_B(me), &pt); assert(BOK(BUF_B(me))); |
447 | EC_DESTROY(&pt); |
448 | RETURN_ME; |
449 | } |
450 | |
451 | static PyObject *wbmeth_putecptraw(PyObject *me, PyObject *arg) |
452 | { |
453 | PyObject *ptobj; |
454 | ec pt = EC_INIT; |
455 | if (!PyArg_ParseTuple(arg, "O!:putecptraw", ecptcurve_pytype, &ptobj)) |
456 | return (0); |
457 | EC_OUT(ECPT_C(ptobj), &pt, ECPT_P(ptobj)); |
458 | ensure(me, ECPT_C(ptobj)->f->noctets * 2 + 1); |
459 | ec_putraw(ECPT_C(ptobj), BUF_B(me), &pt); assert(BOK(BUF_B(me))); |
460 | EC_DESTROY(&pt); |
461 | RETURN_ME; |
462 | } |
463 | |
464 | static PyObject *wbmeth_putge(PyObject *me, PyObject *arg) |
465 | { |
466 | PyObject *geobj; |
467 | if (!PyArg_ParseTuple(arg, "O!:putge", ge_pytype, &geobj)) return (0); |
468 | ensure(me, GE_G(geobj)->noctets); |
469 | G_TOBUF(GE_G(geobj), BUF_B(me), GE_X(geobj)); assert(BOK(BUF_B(me))); |
470 | RETURN_ME; |
471 | } |
472 | |
473 | static PyObject *wbmeth_putgeraw(PyObject *me, PyObject *arg) |
474 | { |
475 | PyObject *geobj; |
476 | if (!PyArg_ParseTuple(arg, "O!:putgeraw", ge_pytype, &geobj)) return (0); |
477 | ensure(me, GE_G(geobj)->noctets); |
478 | G_TORAW(GE_G(geobj), BUF_B(me), GE_X(geobj)); assert(BOK(BUF_B(me))); |
479 | RETURN_ME; |
480 | } |
481 | |
482 | static PyObject *wbget_size(PyObject *me, void *hunoz) |
483 | { return (PyInt_FromLong(BLEN(BUF_B(me)))); } |
484 | |
485 | static PyGetSetDef wbuf_pygetset[] = { |
486 | #define GETSETNAME(op, name) wb##op##_##name |
487 | GET (size, "WBUF.size -> SIZE") |
488 | #undef GETSETNAME |
489 | { 0 } |
490 | }; |
491 | |
492 | static PyMethodDef wbuf_pymethods[] = { |
493 | #define METHNAME(func) wbmeth_##func |
60ddd740 |
494 | METH (zero, "WBUF.zero(N)") |
46e6ad89 |
495 | METH (put, "WBUF.put(BYTES)") |
496 | #define WBMETH_DECL_PUTU_(n, W, w) \ |
497 | METH(putu##w, "WBUF.putu" #w "(INT)") |
498 | DOUINTCONV(WBMETH_DECL_PUTU_) |
499 | #define WBMETH_DECL_PUTBLK_(n, W, w) \ |
500 | METH(putblk##w, "WBUF.putblk" #w "(BYTES)") |
501 | BUF_DOSUFFIXES(WBMETH_DECL_PUTBLK_) |
502 | METH (putmp, "WBUF.putmp(X)") |
503 | METH (putgf, "WBUF.putgf(X)") |
504 | KWMETH(putecpt, "WBUF.putecpt(P)") |
505 | METH (putecptraw, "WBUF.putecptraw(P)") |
506 | METH (putge, "WBUF.putge(X)") |
507 | METH (putgeraw, "WBUF.putgeraw(X)") |
508 | #undef METHNAME |
509 | { 0 } |
510 | }; |
511 | |
512 | static PyBufferProcs wbuf_pybuffer = { |
513 | wbuf_pyreadbuf, /* @bf_getreadbuffer@ */ |
514 | 0, /* @bf_getwritebuffer@ */ |
515 | wbuf_pysegcount, /* @bf_getsegcount@ */ |
516 | 0 /* @bf_getcharbuffer@ */ |
517 | }; |
518 | |
519 | static PyTypeObject wbuf_pytype_skel = { |
520 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 |
521 | "WriteBuffer", /* @tp_name@ */ |
46e6ad89 |
522 | sizeof(buf_pyobj), /* @tp_basicsize@ */ |
523 | 0, /* @tp_itemsize@ */ |
524 | |
525 | buf_pydealloc, /* @tp_dealloc@ */ |
526 | 0, /* @tp_print@ */ |
527 | 0, /* @tp_getattr@ */ |
528 | 0, /* @tp_setattr@ */ |
529 | 0, /* @tp_compare@ */ |
530 | 0, /* @tp_repr@ */ |
531 | 0, /* @tp_as_number@ */ |
532 | 0, /* @tp_as_sequence@ */ |
533 | 0, /* @tp_as_mapping@ */ |
534 | 0, /* @tp_hash@ */ |
535 | 0, /* @tp_call@ */ |
536 | 0, /* @tp_str@ */ |
537 | 0, /* @tp_getattro@ */ |
538 | 0, /* @tp_setattro@ */ |
539 | &wbuf_pybuffer, /* @tp_as_buffer@ */ |
540 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
541 | Py_TPFLAGS_BASETYPE, |
542 | |
543 | /* @tp_doc@ */ |
544 | "A write buffer.", |
545 | |
546 | 0, /* @tp_traverse@ */ |
547 | 0, /* @tp_clear@ */ |
548 | 0, /* @tp_richcompare@ */ |
549 | 0, /* @tp_weaklistoffset@ */ |
550 | 0, /* @tp_iter@ */ |
963a6148 |
551 | 0, /* @tp_iternext@ */ |
46e6ad89 |
552 | wbuf_pymethods, /* @tp_methods@ */ |
553 | 0, /* @tp_members@ */ |
554 | wbuf_pygetset, /* @tp_getset@ */ |
555 | 0, /* @tp_base@ */ |
556 | 0, /* @tp_dict@ */ |
557 | 0, /* @tp_descr_get@ */ |
558 | 0, /* @tp_descr_set@ */ |
559 | 0, /* @tp_dictoffset@ */ |
560 | 0, /* @tp_init@ */ |
561 | PyType_GenericAlloc, /* @tp_alloc@ */ |
562 | wbuf_pynew, /* @tp_new@ */ |
563 | 0, /* @tp_free@ */ |
564 | 0 /* @tp_is_gc@ */ |
565 | }; |
566 | |
567 | /*----- Initialization ----------------------------------------------------*/ |
568 | |
569 | void buffer_pyinit(void) |
570 | { |
571 | INITTYPE(rbuf, root); |
572 | INITTYPE(wbuf, root); |
573 | } |
574 | |
575 | void buffer_pyinsert(PyObject *mod) |
576 | { |
577 | INSEXC("BufferError", buferr, PyExc_Exception, 0); |
578 | INSERT("ReadBuffer", rbuf_pytype); |
579 | INSERT("WriteBuffer", wbuf_pytype); |
580 | } |
581 | |
582 | /*----- That's all, folks -------------------------------------------------*/ |