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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.46 by root, Sun Dec 14 05:57:22 2014 UTC vs.
Revision 1.52 by root, Sun Apr 24 19:31:55 2016 UTC

100#define F_SHRINK 0x00000001UL 100#define F_SHRINK 0x00000001UL
101#define F_ALLOW_UNKNOWN 0x00000002UL 101#define F_ALLOW_UNKNOWN 0x00000002UL
102#define F_ALLOW_SHARING 0x00000004UL 102#define F_ALLOW_SHARING 0x00000004UL
103#define F_ALLOW_CYCLES 0x00000008UL 103#define F_ALLOW_CYCLES 0x00000008UL
104#define F_PACK_STRINGS 0x00000010UL 104#define F_PACK_STRINGS 0x00000010UL
105#define F_UTF8_STRINGS 0x00000020UL
105#define F_VALIDATE_UTF8 0x00000020UL 106#define F_VALIDATE_UTF8 0x00000040UL
106 107
107#define INIT_SIZE 32 // initial scalar size to be allocated 108#define INIT_SIZE 32 // initial scalar size to be allocated
108 109
109#define SB do { 110#define SB do {
110#define SE } while (0) 111#define SE } while (0)
279} 280}
280 281
281ecb_inline void 282ecb_inline void
282encode_str (enc_t *enc, int utf8, char *str, STRLEN len) 283encode_str (enc_t *enc, int utf8, char *str, STRLEN len)
283{ 284{
285 if (ecb_expect_false (enc->cbor.flags & F_UTF8_STRINGS))
286 if (!utf8)
287 {
288 // exceptional path for bytze strings that need to be utf8-encoded
289 STRLEN ulen = len;
290 U8 *p, *pend = (U8 *)str + len;
291
292 for (p = (U8 *)str; p < pend; ++p)
293 ulen += *p >> 7; // count set high bits
294
295 encode_uint (enc, MAJOR_TEXT, ulen);
296
297 need (enc, ulen);
298 for (p = (U8 *)str; p < pend; ++p)
299 if (*p < 0x80)
300 *enc->cur++ = *p;
301 else
302 {
303 *enc->cur++ = 0xc0 + (*p >> 6);
304 *enc->cur++ = 0x80 + (*p & 63);
305 }
306
307 return;
308 }
309
284 encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); 310 encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
285 need (enc, len); 311 need (enc, len);
286 memcpy (enc->cur, str, len); 312 memcpy (enc->cur, str, len);
287 enc->cur += len; 313 enc->cur += len;
288} 314}
449 475
450 if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) 476 if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
451 { 477 {
452 dSP; 478 dSP;
453 479
454 ENTER; SAVETMPS; PUSHMARK (SP); 480 ENTER; SAVETMPS;
481 PUSHMARK (SP);
455 // we re-bless the reference to get overload and other niceties right 482 // we re-bless the reference to get overload and other niceties right
456 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); 483 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
457 484
458 PUTBACK; 485 PUTBACK;
459 // G_SCALAR ensures that return value is 1 486 // G_SCALAR ensures that return value is 1
472 } 499 }
473 else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) 500 else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
474 { 501 {
475 dSP; 502 dSP;
476 503
477 ENTER; SAVETMPS; PUSHMARK (SP); 504 ENTER; SAVETMPS;
505 SAVESTACK_POS ();
506 PUSHMARK (SP);
478 EXTEND (SP, 2); 507 EXTEND (SP, 2);
479 // we re-bless the reference to get overload and other niceties right 508 // we re-bless the reference to get overload and other niceties right
480 PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); 509 PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
481 PUSHs (sv_cbor); 510 PUSHs (sv_cbor);
482 511
584} 613}
585 614
586static SV * 615static SV *
587encode_cbor (SV *scalar, CBOR *cbor) 616encode_cbor (SV *scalar, CBOR *cbor)
588{ 617{
589 enc_t enc = { }; 618 enc_t enc = { 0 };
590 619
591 enc.cbor = *cbor; 620 enc.cbor = *cbor;
592 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); 621 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
593 enc.cur = SvPVX (enc.sv); 622 enc.cur = SvPVX (enc.sv);
594 enc.end = SvEND (enc.sv); 623 enc.end = SvEND (enc.sv);
749 if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) 778 if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
750 { 779 {
751 I32 len = decode_uint (dec); 780 I32 len = decode_uint (dec);
752 char *key = (char *)dec->cur; 781 char *key = (char *)dec->cur;
753 782
783 WANT (len);
754 dec->cur += len; 784 dec->cur += len;
755 785
756 hv_store (hv, key, len, decode_sv (dec), 0); 786 hv_store (hv, key, len, decode_sv (dec), 0);
757 787
758 return; 788 return;
759 } 789 }
760 else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) 790 else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
761 { 791 {
762 I32 len = decode_uint (dec); 792 I32 len = decode_uint (dec);
763 char *key = (char *)dec->cur; 793 char *key = (char *)dec->cur;
764 794
795 WANT (len);
765 dec->cur += len; 796 dec->cur += len;
766 797
767 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) 798 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
768 if (!is_utf8_string (key, len)) 799 if (!is_utf8_string (key, len))
769 ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); 800 ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
992 if (!method) 1023 if (!method)
993 ERR ("cannot decode perl-object (package does not have a THAW method)"); 1024 ERR ("cannot decode perl-object (package does not have a THAW method)");
994 1025
995 dSP; 1026 dSP;
996 1027
997 ENTER; SAVETMPS; PUSHMARK (SP); 1028 ENTER; SAVETMPS;
1029 PUSHMARK (SP);
998 EXTEND (SP, len + 1); 1030 EXTEND (SP, len + 1);
999 // we re-bless the reference to get overload and other niceties right 1031 // we re-bless the reference to get overload and other niceties right
1000 PUSHs (*av_fetch (av, 0, 1)); 1032 PUSHs (*av_fetch (av, 0, 1));
1001 PUSHs (sv_cbor); 1033 PUSHs (sv_cbor);
1002 1034
1027 default: 1059 default:
1028 { 1060 {
1029 sv = decode_sv (dec); 1061 sv = decode_sv (dec);
1030 1062
1031 dSP; 1063 dSP;
1032 ENTER; SAVETMPS; PUSHMARK (SP); 1064 ENTER; SAVETMPS;
1065 SAVESTACK_POS ();
1066 PUSHMARK (SP);
1033 EXTEND (SP, 2); 1067 EXTEND (SP, 2);
1034 PUSHs (newSVuv (tag)); 1068 PUSHs (newSVuv (tag));
1035 PUSHs (sv); 1069 PUSHs (sv);
1036 1070
1037 PUTBACK; 1071 PUTBACK;
1163} 1197}
1164 1198
1165static SV * 1199static SV *
1166decode_cbor (SV *string, CBOR *cbor, char **offset_return) 1200decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1167{ 1201{
1168 dec_t dec = { }; 1202 dec_t dec = { 0 };
1169 SV *sv; 1203 SV *sv;
1170 STRLEN len; 1204 STRLEN len;
1171 char *data = SvPVbyte (string, len); 1205 char *data = SvPVbyte (string, len);
1172 1206
1173 if (len > cbor->max_size && cbor->max_size) 1207 if (len > cbor->max_size && cbor->max_size)
1264 1298
1265 int major = *p >> MAJOR_SHIFT; 1299 int major = *p >> MAJOR_SHIFT;
1266 1300
1267 switch (major) 1301 switch (major)
1268 { 1302 {
1303 case MAJOR_TAG >> MAJOR_SHIFT:
1304 ++count; // tags merely prefix another value
1305 break;
1306
1269 case MAJOR_BYTES >> MAJOR_SHIFT: 1307 case MAJOR_BYTES >> MAJOR_SHIFT:
1270 case MAJOR_TEXT >> MAJOR_SHIFT: 1308 case MAJOR_TEXT >> MAJOR_SHIFT:
1271 case MAJOR_ARRAY >> MAJOR_SHIFT: 1309 case MAJOR_ARRAY >> MAJOR_SHIFT:
1272 case MAJOR_MAP >> MAJOR_SHIFT: 1310 case MAJOR_MAP >> MAJOR_SHIFT:
1273 { 1311 {
1378 shrink = F_SHRINK 1416 shrink = F_SHRINK
1379 allow_unknown = F_ALLOW_UNKNOWN 1417 allow_unknown = F_ALLOW_UNKNOWN
1380 allow_sharing = F_ALLOW_SHARING 1418 allow_sharing = F_ALLOW_SHARING
1381 allow_cycles = F_ALLOW_CYCLES 1419 allow_cycles = F_ALLOW_CYCLES
1382 pack_strings = F_PACK_STRINGS 1420 pack_strings = F_PACK_STRINGS
1421 utf8_strings = F_UTF8_STRINGS
1383 validate_utf8 = F_VALIDATE_UTF8 1422 validate_utf8 = F_VALIDATE_UTF8
1384 PPCODE: 1423 PPCODE:
1385{ 1424{
1386 if (enable) 1425 if (enable)
1387 self->flags |= ix; 1426 self->flags |= ix;

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