… | |
… | |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
11 | |
11 | |
|
|
12 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
13 | #include "ecb.h" |
13 | |
14 | |
14 | // compatibility with perl <5.18 |
15 | // compatibility with perl <5.18 |
15 | #ifndef HvNAMELEN_get |
16 | #ifndef HvNAMELEN_get |
16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
17 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
… | |
… | |
99 | #define F_SHRINK 0x00000001UL |
100 | #define F_SHRINK 0x00000001UL |
100 | #define F_ALLOW_UNKNOWN 0x00000002UL |
101 | #define F_ALLOW_UNKNOWN 0x00000002UL |
101 | #define F_ALLOW_SHARING 0x00000004UL |
102 | #define F_ALLOW_SHARING 0x00000004UL |
102 | #define F_ALLOW_CYCLES 0x00000008UL |
103 | #define F_ALLOW_CYCLES 0x00000008UL |
103 | #define F_PACK_STRINGS 0x00000010UL |
104 | #define F_PACK_STRINGS 0x00000010UL |
|
|
105 | #define F_TEXT_KEYS 0x00000020UL |
|
|
106 | #define F_TEXT_STRINGS 0x00000040UL |
104 | #define F_VALIDATE_UTF8 0x00000020UL |
107 | #define F_VALIDATE_UTF8 0x00000080UL |
105 | |
108 | |
106 | #define INIT_SIZE 32 // initial scalar size to be allocated |
109 | #define INIT_SIZE 32 // initial scalar size to be allocated |
107 | |
110 | |
108 | #define SB do { |
111 | #define SB do { |
109 | #define SE } while (0) |
112 | #define SE } while (0) |
… | |
… | |
128 | typedef struct { |
131 | typedef struct { |
129 | U32 flags; |
132 | U32 flags; |
130 | U32 max_depth; |
133 | U32 max_depth; |
131 | STRLEN max_size; |
134 | STRLEN max_size; |
132 | SV *filter; |
135 | SV *filter; |
|
|
136 | |
|
|
137 | // for the incremental parser |
|
|
138 | STRLEN incr_pos; // the current offset into the text |
|
|
139 | STRLEN incr_need; // minimum bytes needed to decode |
|
|
140 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
133 | } CBOR; |
141 | } CBOR; |
134 | |
142 | |
135 | ecb_inline void |
143 | ecb_inline void |
136 | cbor_init (CBOR *cbor) |
144 | cbor_init (CBOR *cbor) |
137 | { |
145 | { |
… | |
… | |
141 | |
149 | |
142 | ecb_inline void |
150 | ecb_inline void |
143 | cbor_free (CBOR *cbor) |
151 | cbor_free (CBOR *cbor) |
144 | { |
152 | { |
145 | SvREFCNT_dec (cbor->filter); |
153 | SvREFCNT_dec (cbor->filter); |
|
|
154 | SvREFCNT_dec (cbor->incr_count); |
146 | } |
155 | } |
147 | |
156 | |
148 | ///////////////////////////////////////////////////////////////////////////// |
157 | ///////////////////////////////////////////////////////////////////////////// |
149 | // utility functions |
158 | // utility functions |
150 | |
159 | |
… | |
… | |
269 | encode_tag (enc_t *enc, UV tag) |
278 | encode_tag (enc_t *enc, UV tag) |
270 | { |
279 | { |
271 | encode_uint (enc, MAJOR_TAG, tag); |
280 | encode_uint (enc, MAJOR_TAG, tag); |
272 | } |
281 | } |
273 | |
282 | |
|
|
283 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
|
|
284 | ecb_noinline static void |
|
|
285 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
|
|
286 | { |
|
|
287 | STRLEN ulen = len; |
|
|
288 | U8 *p, *pend = (U8 *)str + len; |
|
|
289 | |
|
|
290 | for (p = (U8 *)str; p < pend; ++p) |
|
|
291 | ulen += *p >> 7; // count set high bits |
|
|
292 | |
|
|
293 | encode_uint (enc, MAJOR_TEXT, ulen); |
|
|
294 | |
|
|
295 | need (enc, ulen); |
|
|
296 | for (p = (U8 *)str; p < pend; ++p) |
|
|
297 | if (*p < 0x80) |
|
|
298 | *enc->cur++ = *p; |
|
|
299 | else |
|
|
300 | { |
|
|
301 | *enc->cur++ = 0xc0 + (*p >> 6); |
|
|
302 | *enc->cur++ = 0x80 + (*p & 63); |
|
|
303 | } |
|
|
304 | } |
|
|
305 | |
274 | ecb_inline void |
306 | ecb_inline void |
275 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
307 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
276 | { |
308 | { |
|
|
309 | if (ecb_expect_false (upgrade_utf8)) |
|
|
310 | if (!utf8) |
|
|
311 | { |
|
|
312 | encode_str_utf8 (enc, utf8, str, len); |
|
|
313 | return; |
|
|
314 | } |
|
|
315 | |
277 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
316 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
278 | need (enc, len); |
317 | need (enc, len); |
279 | memcpy (enc->cur, str, len); |
318 | memcpy (enc->cur, str, len); |
280 | enc->cur += len; |
319 | enc->cur += len; |
281 | } |
320 | } |
282 | |
321 | |
283 | static void |
322 | ecb_inline void |
284 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
323 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
285 | { |
324 | { |
286 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
325 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
287 | { |
326 | { |
288 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
327 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
289 | |
328 | |
… | |
… | |
300 | sv_setuv (*svp, enc->stringref_idx); |
339 | sv_setuv (*svp, enc->stringref_idx); |
301 | ++enc->stringref_idx; |
340 | ++enc->stringref_idx; |
302 | } |
341 | } |
303 | } |
342 | } |
304 | |
343 | |
305 | encode_str (enc, utf8, str, len); |
344 | encode_str (enc, upgrade_utf8, utf8, str, len); |
306 | } |
345 | } |
307 | |
346 | |
308 | static void encode_sv (enc_t *enc, SV *sv); |
347 | static void encode_sv (enc_t *enc, SV *sv); |
309 | |
348 | |
310 | static void |
349 | static void |
… | |
… | |
317 | |
356 | |
318 | ++enc->depth; |
357 | ++enc->depth; |
319 | |
358 | |
320 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
359 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
321 | |
360 | |
|
|
361 | if (SvMAGICAL (av)) |
322 | for (i = 0; i <= len; ++i) |
362 | for (i = 0; i <= len; ++i) |
323 | { |
363 | { |
324 | SV **svp = av_fetch (av, i, 0); |
364 | SV **svp = av_fetch (av, i, 0); |
325 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
365 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
326 | } |
366 | } |
|
|
367 | else |
|
|
368 | for (i = 0; i <= len; ++i) |
|
|
369 | { |
|
|
370 | SV *sv = AvARRAY (av)[i]; |
|
|
371 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
|
372 | } |
327 | |
373 | |
328 | --enc->depth; |
374 | --enc->depth; |
329 | } |
375 | } |
330 | |
376 | |
331 | static void |
377 | static void |
… | |
… | |
349 | while ((he = hv_iternext (hv))) |
395 | while ((he = hv_iternext (hv))) |
350 | { |
396 | { |
351 | if (HeKLEN (he) == HEf_SVKEY) |
397 | if (HeKLEN (he) == HEf_SVKEY) |
352 | encode_sv (enc, HeSVKEY (he)); |
398 | encode_sv (enc, HeSVKEY (he)); |
353 | else |
399 | else |
354 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
400 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
355 | |
401 | |
356 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
402 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
357 | } |
403 | } |
358 | |
404 | |
359 | if (mg) |
405 | if (mg) |
… | |
… | |
435 | |
481 | |
436 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
482 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
437 | { |
483 | { |
438 | dSP; |
484 | dSP; |
439 | |
485 | |
440 | ENTER; SAVETMPS; PUSHMARK (SP); |
486 | ENTER; SAVETMPS; |
|
|
487 | PUSHMARK (SP); |
441 | // we re-bless the reference to get overload and other niceties right |
488 | // we re-bless the reference to get overload and other niceties right |
442 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
489 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
443 | |
490 | |
444 | PUTBACK; |
491 | PUTBACK; |
445 | // G_SCALAR ensures that return value is 1 |
492 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
458 | } |
505 | } |
459 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
506 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
460 | { |
507 | { |
461 | dSP; |
508 | dSP; |
462 | |
509 | |
463 | ENTER; SAVETMPS; PUSHMARK (SP); |
510 | ENTER; SAVETMPS; |
|
|
511 | SAVESTACK_POS (); |
|
|
512 | PUSHMARK (SP); |
464 | EXTEND (SP, 2); |
513 | EXTEND (SP, 2); |
465 | // we re-bless the reference to get overload and other niceties right |
514 | // we re-bless the reference to get overload and other niceties right |
466 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
515 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
467 | PUSHs (sv_cbor); |
516 | PUSHs (sv_cbor); |
468 | |
517 | |
… | |
… | |
474 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
523 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
475 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
524 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
476 | |
525 | |
477 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
526 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
478 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
527 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
479 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
528 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
480 | |
529 | |
481 | while (count) |
530 | while (count) |
482 | encode_sv (enc, SP[1 - count--]); |
531 | encode_sv (enc, SP[1 - count--]); |
483 | |
532 | |
484 | PUTBACK; |
533 | PUTBACK; |
… | |
… | |
543 | |
592 | |
544 | if (SvPOKp (sv)) |
593 | if (SvPOKp (sv)) |
545 | { |
594 | { |
546 | STRLEN len; |
595 | STRLEN len; |
547 | char *str = SvPV (sv, len); |
596 | char *str = SvPV (sv, len); |
548 | encode_strref (enc, SvUTF8 (sv), str, len); |
597 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
549 | } |
598 | } |
550 | else if (SvNOKp (sv)) |
599 | else if (SvNOKp (sv)) |
551 | encode_nv (enc, sv); |
600 | encode_nv (enc, sv); |
552 | else if (SvIOKp (sv)) |
601 | else if (SvIOKp (sv)) |
553 | { |
602 | { |
… | |
… | |
570 | } |
619 | } |
571 | |
620 | |
572 | static SV * |
621 | static SV * |
573 | encode_cbor (SV *scalar, CBOR *cbor) |
622 | encode_cbor (SV *scalar, CBOR *cbor) |
574 | { |
623 | { |
575 | enc_t enc = { }; |
624 | enc_t enc = { 0 }; |
576 | |
625 | |
577 | enc.cbor = *cbor; |
626 | enc.cbor = *cbor; |
578 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
579 | enc.cur = SvPVX (enc.sv); |
628 | enc.cur = SvPVX (enc.sv); |
580 | enc.end = SvEND (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
… | |
… | |
730 | { |
779 | { |
731 | // for speed reasons, we specialcase single-string |
780 | // for speed reasons, we specialcase single-string |
732 | // byte or utf-8 strings as keys, but only when !stringref |
781 | // byte or utf-8 strings as keys, but only when !stringref |
733 | |
782 | |
734 | if (ecb_expect_true (!dec->stringref)) |
783 | if (ecb_expect_true (!dec->stringref)) |
735 | if (ecb_expect_true ((*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
784 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
736 | { |
785 | { |
737 | I32 len = decode_uint (dec); |
786 | I32 len = decode_uint (dec); |
738 | char *key = (char *)dec->cur; |
787 | char *key = (char *)dec->cur; |
739 | |
788 | |
|
|
789 | WANT (len); |
740 | dec->cur += len; |
790 | dec->cur += len; |
741 | |
791 | |
742 | hv_store (hv, key, len, decode_sv (dec), 0); |
792 | hv_store (hv, key, len, decode_sv (dec), 0); |
743 | |
793 | |
744 | return; |
794 | return; |
745 | } |
795 | } |
746 | else if (ecb_expect_true ((*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
796 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
747 | { |
797 | { |
748 | I32 len = decode_uint (dec); |
798 | I32 len = decode_uint (dec); |
749 | char *key = (char *)dec->cur; |
799 | char *key = (char *)dec->cur; |
750 | |
800 | |
|
|
801 | WANT (len); |
751 | dec->cur += len; |
802 | dec->cur += len; |
752 | |
803 | |
753 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
804 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
754 | if (!is_utf8_string (key, len)) |
805 | if (!is_utf8_string (key, len)) |
755 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
806 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
… | |
… | |
978 | if (!method) |
1029 | if (!method) |
979 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1030 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
980 | |
1031 | |
981 | dSP; |
1032 | dSP; |
982 | |
1033 | |
983 | ENTER; SAVETMPS; PUSHMARK (SP); |
1034 | ENTER; SAVETMPS; |
|
|
1035 | PUSHMARK (SP); |
984 | EXTEND (SP, len + 1); |
1036 | EXTEND (SP, len + 1); |
985 | // we re-bless the reference to get overload and other niceties right |
1037 | // we re-bless the reference to get overload and other niceties right |
986 | PUSHs (*av_fetch (av, 0, 1)); |
1038 | PUSHs (*av_fetch (av, 0, 1)); |
987 | PUSHs (sv_cbor); |
1039 | PUSHs (sv_cbor); |
988 | |
1040 | |
… | |
… | |
1013 | default: |
1065 | default: |
1014 | { |
1066 | { |
1015 | sv = decode_sv (dec); |
1067 | sv = decode_sv (dec); |
1016 | |
1068 | |
1017 | dSP; |
1069 | dSP; |
1018 | ENTER; SAVETMPS; PUSHMARK (SP); |
1070 | ENTER; SAVETMPS; |
|
|
1071 | SAVESTACK_POS (); |
|
|
1072 | PUSHMARK (SP); |
1019 | EXTEND (SP, 2); |
1073 | EXTEND (SP, 2); |
1020 | PUSHs (newSVuv (tag)); |
1074 | PUSHs (newSVuv (tag)); |
1021 | PUSHs (sv); |
1075 | PUSHs (sv); |
1022 | |
1076 | |
1023 | PUTBACK; |
1077 | PUTBACK; |
… | |
… | |
1132 | |
1186 | |
1133 | return newSVnv (ecb_binary64_to_double (fp)); |
1187 | return newSVnv (ecb_binary64_to_double (fp)); |
1134 | } |
1188 | } |
1135 | |
1189 | |
1136 | // 0..19 unassigned simple |
1190 | // 0..19 unassigned simple |
1137 | // 24 reserved + unassigned (reserved values are not encodable) |
1191 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1192 | // 28-30 unassigned misc |
|
|
1193 | // 31 break code |
1138 | default: |
1194 | default: |
1139 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1195 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1140 | } |
1196 | } |
1141 | |
1197 | |
1142 | break; |
1198 | break; |
1143 | } |
1199 | } |
1144 | |
1200 | |
… | |
… | |
1147 | } |
1203 | } |
1148 | |
1204 | |
1149 | static SV * |
1205 | static SV * |
1150 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1206 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1151 | { |
1207 | { |
1152 | dec_t dec = { }; |
1208 | dec_t dec = { 0 }; |
1153 | SV *sv; |
1209 | SV *sv; |
1154 | STRLEN len; |
1210 | STRLEN len; |
1155 | char *data = SvPVbyte (string, len); |
1211 | char *data = SvPVbyte (string, len); |
1156 | |
1212 | |
1157 | if (len > cbor->max_size && cbor->max_size) |
1213 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
1191 | sv = sv_2mortal (sv); |
1247 | sv = sv_2mortal (sv); |
1192 | |
1248 | |
1193 | return sv; |
1249 | return sv; |
1194 | } |
1250 | } |
1195 | |
1251 | |
|
|
1252 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1253 | // incremental parser |
|
|
1254 | |
|
|
1255 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1256 | |
|
|
1257 | // returns 0 for notyet, 1 for success or error |
|
|
1258 | static int |
|
|
1259 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1260 | { |
|
|
1261 | STRLEN cur; |
|
|
1262 | SvPV (cborstr, cur); |
|
|
1263 | |
|
|
1264 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1265 | { |
|
|
1266 | // table of integer count bytes |
|
|
1267 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1268 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1269 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1270 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1271 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1272 | }; |
|
|
1273 | |
|
|
1274 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1275 | U8 m = *p & MINOR_MASK; |
|
|
1276 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1277 | I8 ilen = incr_len[m]; |
|
|
1278 | |
|
|
1279 | self->incr_need = self->incr_pos + 1; |
|
|
1280 | |
|
|
1281 | if (ecb_expect_false (ilen < 0)) |
|
|
1282 | { |
|
|
1283 | if (m != MINOR_INDEF) |
|
|
1284 | return 1; // error |
|
|
1285 | |
|
|
1286 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1287 | { |
|
|
1288 | if (count >= 0) |
|
|
1289 | return 1; // error |
|
|
1290 | |
|
|
1291 | count = 1; |
|
|
1292 | } |
|
|
1293 | else |
|
|
1294 | { |
|
|
1295 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1296 | count = -1; |
|
|
1297 | } |
|
|
1298 | } |
|
|
1299 | else |
|
|
1300 | { |
|
|
1301 | self->incr_need += ilen; |
|
|
1302 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1303 | return 0; |
|
|
1304 | |
|
|
1305 | int major = *p >> MAJOR_SHIFT; |
|
|
1306 | |
|
|
1307 | switch (major) |
|
|
1308 | { |
|
|
1309 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1310 | ++count; // tags merely prefix another value |
|
|
1311 | break; |
|
|
1312 | |
|
|
1313 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1314 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1315 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1316 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1317 | { |
|
|
1318 | UV len; |
|
|
1319 | |
|
|
1320 | if (ecb_expect_false (ilen)) |
|
|
1321 | { |
|
|
1322 | len = 0; |
|
|
1323 | |
|
|
1324 | do { |
|
|
1325 | len = (len << 8) | *++p; |
|
|
1326 | } while (--ilen); |
|
|
1327 | } |
|
|
1328 | else |
|
|
1329 | len = m; |
|
|
1330 | |
|
|
1331 | switch (major) |
|
|
1332 | { |
|
|
1333 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1334 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1335 | self->incr_need += len; |
|
|
1336 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1337 | return 0; |
|
|
1338 | |
|
|
1339 | break; |
|
|
1340 | |
|
|
1341 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1342 | len <<= 1; |
|
|
1343 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1344 | if (len) |
|
|
1345 | { |
|
|
1346 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1347 | count = len + 1; |
|
|
1348 | } |
|
|
1349 | break; |
|
|
1350 | } |
|
|
1351 | } |
|
|
1352 | } |
|
|
1353 | } |
|
|
1354 | |
|
|
1355 | self->incr_pos = self->incr_need; |
|
|
1356 | |
|
|
1357 | if (count > 0) |
|
|
1358 | { |
|
|
1359 | while (!--count) |
|
|
1360 | { |
|
|
1361 | if (!AvFILLp (self->incr_count)) |
|
|
1362 | return 1; // done |
|
|
1363 | |
|
|
1364 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1365 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1369 | } |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | return 0; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | |
1196 | ///////////////////////////////////////////////////////////////////////////// |
1376 | ///////////////////////////////////////////////////////////////////////////// |
1197 | // XS interface functions |
1377 | // XS interface functions |
1198 | |
1378 | |
1199 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1379 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1200 | |
1380 | |
… | |
… | |
1242 | shrink = F_SHRINK |
1422 | shrink = F_SHRINK |
1243 | allow_unknown = F_ALLOW_UNKNOWN |
1423 | allow_unknown = F_ALLOW_UNKNOWN |
1244 | allow_sharing = F_ALLOW_SHARING |
1424 | allow_sharing = F_ALLOW_SHARING |
1245 | allow_cycles = F_ALLOW_CYCLES |
1425 | allow_cycles = F_ALLOW_CYCLES |
1246 | pack_strings = F_PACK_STRINGS |
1426 | pack_strings = F_PACK_STRINGS |
|
|
1427 | text_keys = F_TEXT_KEYS |
|
|
1428 | text_strings = F_TEXT_STRINGS |
1247 | validate_utf8 = F_VALIDATE_UTF8 |
1429 | validate_utf8 = F_VALIDATE_UTF8 |
1248 | PPCODE: |
1430 | PPCODE: |
1249 | { |
1431 | { |
1250 | if (enable) |
1432 | if (enable) |
1251 | self->flags |= ix; |
1433 | self->flags |= ix; |
… | |
… | |
1260 | get_shrink = F_SHRINK |
1442 | get_shrink = F_SHRINK |
1261 | get_allow_unknown = F_ALLOW_UNKNOWN |
1443 | get_allow_unknown = F_ALLOW_UNKNOWN |
1262 | get_allow_sharing = F_ALLOW_SHARING |
1444 | get_allow_sharing = F_ALLOW_SHARING |
1263 | get_allow_cycles = F_ALLOW_CYCLES |
1445 | get_allow_cycles = F_ALLOW_CYCLES |
1264 | get_pack_strings = F_PACK_STRINGS |
1446 | get_pack_strings = F_PACK_STRINGS |
|
|
1447 | get_text_keys = F_TEXT_KEYS |
|
|
1448 | get_text_strings = F_TEXT_STRINGS |
1265 | get_validate_utf8 = F_VALIDATE_UTF8 |
1449 | get_validate_utf8 = F_VALIDATE_UTF8 |
1266 | PPCODE: |
1450 | PPCODE: |
1267 | XPUSHs (boolSV (self->flags & ix)); |
1451 | XPUSHs (boolSV (self->flags & ix)); |
1268 | |
1452 | |
1269 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1453 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
… | |
… | |
1319 | EXTEND (SP, 2); |
1503 | EXTEND (SP, 2); |
1320 | PUSHs (sv); |
1504 | PUSHs (sv); |
1321 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1505 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1322 | } |
1506 | } |
1323 | |
1507 | |
|
|
1508 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1509 | ALIAS: |
|
|
1510 | incr_parse_multiple = 1 |
|
|
1511 | PPCODE: |
|
|
1512 | { |
|
|
1513 | if (SvUTF8 (cborstr)) |
|
|
1514 | sv_utf8_downgrade (cborstr, 0); |
|
|
1515 | |
|
|
1516 | if (!self->incr_count) |
|
|
1517 | { |
|
|
1518 | self->incr_count = newAV (); |
|
|
1519 | self->incr_pos = 0; |
|
|
1520 | self->incr_need = 1; |
|
|
1521 | |
|
|
1522 | av_push (self->incr_count, newSViv (1)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | do |
|
|
1526 | { |
|
|
1527 | if (!incr_parse (self, cborstr)) |
|
|
1528 | { |
|
|
1529 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1530 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1531 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1532 | |
|
|
1533 | break; |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | SV *sv; |
|
|
1537 | char *offset; |
|
|
1538 | |
|
|
1539 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1540 | XPUSHs (sv); |
|
|
1541 | |
|
|
1542 | sv_chop (cborstr, offset); |
|
|
1543 | |
|
|
1544 | av_clear (self->incr_count); |
|
|
1545 | av_push (self->incr_count, newSViv (1)); |
|
|
1546 | |
|
|
1547 | self->incr_pos = 0; |
|
|
1548 | self->incr_need = self->incr_pos + 1; |
|
|
1549 | } |
|
|
1550 | while (ix); |
|
|
1551 | } |
|
|
1552 | |
|
|
1553 | void incr_reset (CBOR *self) |
|
|
1554 | CODE: |
|
|
1555 | { |
|
|
1556 | SvREFCNT_dec (self->incr_count); |
|
|
1557 | self->incr_count = 0; |
|
|
1558 | } |
|
|
1559 | |
1324 | void DESTROY (CBOR *self) |
1560 | void DESTROY (CBOR *self) |
1325 | PPCODE: |
1561 | PPCODE: |
1326 | cbor_free (self); |
1562 | cbor_free (self); |
1327 | |
1563 | |
1328 | PROTOTYPES: ENABLE |
1564 | PROTOTYPES: ENABLE |