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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.1 by root, Fri Oct 25 23:09:45 2013 UTC vs.
Revision 1.9 by root, Sun Oct 27 10:17:12 2013 UTC

… …
9#include <limits.h> 9#include <limits.h>
10#include <float.h> 10#include <float.h>
11 11
12#include "ecb.h" 12#include "ecb.h"
13 13
14#if defined(__BORLANDC__) || defined(_MSC_VER) 14// known tags
15# define snprintf _snprintf // C compilers have this in stdio.h 15enum cbor_tag
16#endif 16{
17 // inofficial extensions (pending iana registration)
18 CBOR_TAG_PERL_OBJECT = 256,
19 CBOR_TAG_GENERIC_OBJECT = 257,
20
21 // rfc7049
22 CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
23 CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
24 CBOR_TAG_POS_BIGNUM = 2, // byte string
25 CBOR_TAG_NEG_BIGNUM = 3, // byte string
26 CBOR_TAG_DECIMAL = 4, // decimal fraction, array
27 CBOR_TAG_BIGFLOAT = 5, // array
28
29 CBOR_TAG_CONV_B64U = 21, // base64url, any
30 CBOR_TAG_CONV_B64 = 22, // base64, any
31 CBOR_TAG_CONV_HEX = 23, // base16, any
32 CBOR_TAG_CBOR = 24, // embedded cbor, byte string
33
34 CBOR_TAG_URI = 32, // URI rfc3986, utf-8
35 CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
36 CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
37 CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
38 CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
39
40 CBOR_TAG_MAGIC = 55799 // self-describe cbor
41};
17 42
18#define F_SHRINK 0x00000200UL 43#define F_SHRINK 0x00000200UL
19#define F_ALLOW_UNKNOWN 0x00002000UL 44#define F_ALLOW_UNKNOWN 0x00002000UL
20 45
21#define INIT_SIZE 32 // initial scalar size to be allocated 46#define INIT_SIZE 32 // initial scalar size to be allocated
22 47
23#define SB do { 48#define SB do {
24#define SE } while (0) 49#define SE } while (0)
25
26#if __GNUC__ >= 3
27# define expect(expr,value) __builtin_expect ((expr), (value))
28# define INLINE static inline
29#else
30# define expect(expr,value) (expr)
31# define INLINE static
32#endif
33
34#define expect_false(expr) expect ((expr) != 0, 0)
35#define expect_true(expr) expect ((expr) != 0, 1)
36 50
37#define IN_RANGE_INC(type,val,beg,end) \ 51#define IN_RANGE_INC(type,val,beg,end) \
38 ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ 52 ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
39 <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) 53 <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
40 54
… …
46#else 60#else
47# define CBOR_SLOW 0 61# define CBOR_SLOW 0
48# define CBOR_STASH cbor_stash 62# define CBOR_STASH cbor_stash
49#endif 63#endif
50 64
51static HV *cbor_stash, *cbor_boolean_stash; // CBOR::XS:: 65static HV *cbor_stash, *cbor_boolean_stash, *cbor_tagged_stash; // CBOR::XS::
52static SV *cbor_true, *cbor_false; 66static SV *cbor_true, *cbor_false;
53 67
54typedef struct { 68typedef struct {
55 U32 flags; 69 U32 flags;
56 U32 max_depth; 70 U32 max_depth;
57 STRLEN max_size; 71 STRLEN max_size;
58
59 SV *cb_object;
60 HV *cb_sk_object;
61} CBOR; 72} CBOR;
62 73
63INLINE void 74ecb_inline void
64cbor_init (CBOR *cbor) 75cbor_init (CBOR *cbor)
65{ 76{
66 Zero (cbor, 1, CBOR); 77 Zero (cbor, 1, CBOR);
67 cbor->max_depth = 512; 78 cbor->max_depth = 512;
68} 79}
69 80
70///////////////////////////////////////////////////////////////////////////// 81/////////////////////////////////////////////////////////////////////////////
71// utility functions 82// utility functions
72 83
73INLINE SV * 84ecb_inline SV *
74get_bool (const char *name) 85get_bool (const char *name)
75{ 86{
76 SV *sv = get_sv (name, 1); 87 SV *sv = get_sv (name, 1);
77 88
78 SvREADONLY_on (sv); 89 SvREADONLY_on (sv);
79 SvREADONLY_on (SvRV (sv)); 90 SvREADONLY_on (SvRV (sv));
80 91
81 return sv; 92 return sv;
82} 93}
83 94
84INLINE void 95ecb_inline void
85shrink (SV *sv) 96shrink (SV *sv)
86{ 97{
87 sv_utf8_downgrade (sv, 1); 98 sv_utf8_downgrade (sv, 1);
88 99
89 if (SvLEN (sv) > SvCUR (sv) + 1) 100 if (SvLEN (sv) > SvCUR (sv) + 1)
… …
112 SV *sv; // result scalar 123 SV *sv; // result scalar
113 CBOR cbor; 124 CBOR cbor;
114 U32 depth; // recursion level 125 U32 depth; // recursion level
115} enc_t; 126} enc_t;
116 127
117INLINE void 128ecb_inline void
118need (enc_t *enc, STRLEN len) 129need (enc_t *enc, STRLEN len)
119{ 130{
120 if (expect_false (enc->cur + len >= enc->end)) 131 if (ecb_expect_false (enc->cur + len >= enc->end))
121 { 132 {
122 STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); 133 STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
123 SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); 134 SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
124 enc->cur = SvPVX (enc->sv) + cur; 135 enc->cur = SvPVX (enc->sv) + cur;
125 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; 136 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
126 } 137 }
127} 138}
128 139
129INLINE void 140ecb_inline void
130encode_ch (enc_t *enc, char ch) 141encode_ch (enc_t *enc, char ch)
131{ 142{
132 need (enc, 1); 143 need (enc, 1);
133 *enc->cur++ = ch; 144 *enc->cur++ = ch;
134} 145}
… …
138{ 149{
139 need (enc, 9); 150 need (enc, 9);
140 151
141 if (len < 24) 152 if (len < 24)
142 *enc->cur++ = major | len; 153 *enc->cur++ = major | len;
143 else if (len < 0x100) 154 else if (len <= 0xff)
144 { 155 {
145 *enc->cur++ = major | 24; 156 *enc->cur++ = major | 24;
146 *enc->cur++ = len; 157 *enc->cur++ = len;
147 } 158 }
148 else if (len < 0x10000) 159 else if (len <= 0xffff)
149 { 160 {
150 *enc->cur++ = major | 25; 161 *enc->cur++ = major | 25;
151 *enc->cur++ = len >> 8; 162 *enc->cur++ = len >> 8;
152 *enc->cur++ = len; 163 *enc->cur++ = len;
153 } 164 }
154 else if (len < 0x100000000) 165 else if (len <= 0xffffffff)
155 { 166 {
156 *enc->cur++ = major | 26; 167 *enc->cur++ = major | 26;
157 *enc->cur++ = len >> 24; 168 *enc->cur++ = len >> 24;
158 *enc->cur++ = len >> 16; 169 *enc->cur++ = len >> 16;
159 *enc->cur++ = len >> 8; 170 *enc->cur++ = len >> 8;
160 *enc->cur++ = len; 171 *enc->cur++ = len;
161 } 172 }
162 else if (len) 173 else
163 { 174 {
164 *enc->cur++ = major | 27; 175 *enc->cur++ = major | 27;
165 *enc->cur++ = len >> 56; 176 *enc->cur++ = len >> 56;
166 *enc->cur++ = len >> 48; 177 *enc->cur++ = len >> 48;
167 *enc->cur++ = len >> 40; 178 *enc->cur++ = len >> 40;
… …
228 if (HeKLEN (he) == HEf_SVKEY) 239 if (HeKLEN (he) == HEf_SVKEY)
229 encode_sv (enc, HeSVKEY (he)); 240 encode_sv (enc, HeSVKEY (he));
230 else 241 else
231 encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); 242 encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
232 243
233 encode_sv (enc, expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); 244 encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
234 } 245 }
235 246
236 if (mg) 247 if (mg)
237 encode_ch (enc, 0xe0 | 31); 248 encode_ch (enc, 0xe0 | 31);
238 249
… …
246 svtype svt; 257 svtype svt;
247 258
248 SvGETMAGIC (sv); 259 SvGETMAGIC (sv);
249 svt = SvTYPE (sv); 260 svt = SvTYPE (sv);
250 261
251 if (expect_false (SvOBJECT (sv))) 262 if (ecb_expect_false (SvOBJECT (sv)))
252 { 263 {
253 HV *stash = !CBOR_SLOW || cbor_boolean_stash 264 HV *boolean_stash = !CBOR_SLOW || cbor_boolean_stash
254 ? cbor_boolean_stash 265 ? cbor_boolean_stash
255 : gv_stashpv ("CBOR::XS::Boolean", 1); 266 : gv_stashpv ("CBOR::XS::Boolean", 1);
267 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
268 ? cbor_tagged_stash
269 : gv_stashpv ("CBOR::XS::Tagged" , 1);
256 270
257 if (SvSTASH (sv) == stash) 271 if (SvSTASH (sv) == boolean_stash)
258 encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); 272 encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);
273 else if (SvSTASH (sv) == tagged_stash)
274 {
275 if (svt != SVt_PVAV)
276 croak ("encountered CBOR::XS::Tagged object that isn't an array");
277
278 encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));
279 encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
280 }
259 else 281 else
260 { 282 {
261#if 0 //TODO 283 // we re-bless the reference to get overload and other niceties right
262 if (enc->cbor.flags & F_CONV_BLESSED) 284 GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0);
285
286 if (to_cbor)
263 { 287 {
264 // we re-bless the reference to get overload and other niceties right
265 GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0);
266
267 if (to_cbor)
268 {
269 dSP; 288 dSP;
270 289
271 ENTER; SAVETMPS; PUSHMARK (SP); 290 ENTER; SAVETMPS; PUSHMARK (SP);
272 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); 291 XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
273 292
274 // calling with G_SCALAR ensures that we always get a 1 return value 293 // calling with G_SCALAR ensures that we always get a 1 return value
275 PUTBACK; 294 PUTBACK;
276 call_sv ((SV *)GvCV (to_cbor), G_SCALAR); 295 call_sv ((SV *)GvCV (to_cbor), G_SCALAR);
277 SPAGAIN; 296 SPAGAIN;
278 297
279 // catch this surprisingly common error 298 // catch this surprisingly common error
280 if (SvROK (TOPs) && SvRV (TOPs) == sv) 299 if (SvROK (TOPs) && SvRV (TOPs) == sv)
281 croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); 300 croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
282 301
283 sv = POPs; 302 sv = POPs;
284 PUTBACK; 303 PUTBACK;
285 304
286 encode_sv (enc, sv); 305 encode_sv (enc, sv);
287 306
288 FREETMPS; LEAVE; 307 FREETMPS; LEAVE;
289 }
290 else if (enc->cbor.flags & F_ALLOW_BLESSED)
291 encode_str (enc, "null", 4, 0);
292 else
293 croak ("encountered object '%s', but neither allow_blessed enabled nor TO_CBOR method available on it",
294 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
295 } 308 }
296 else if (enc->cbor.flags & F_ALLOW_BLESSED)
297 encode_str (enc, "null", 4, 0);
298 else 309 else
299 croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", 310 croak ("encountered object '%s', but no TO_CBOR method available on it",
300 SvPV_nolen (sv_2mortal (newRV_inc (sv)))); 311 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
301#endif
302 } 312 }
303 } 313 }
304 else if (svt == SVt_PVHV) 314 else if (svt == SVt_PVHV)
305 encode_hv (enc, (HV *)sv); 315 encode_hv (enc, (HV *)sv);
306 else if (svt == SVt_PVAV) 316 else if (svt == SVt_PVAV)
… …
332{ 342{
333 double nv = SvNVX (sv); 343 double nv = SvNVX (sv);
334 344
335 need (enc, 9); 345 need (enc, 9);
336 346
337 if (expect_false (nv == (U32)nv)) 347 if (ecb_expect_false (nv == (U32)nv))
338 encode_uint (enc, 0x00, (U32)nv); 348 encode_uint (enc, 0x00, (U32)nv);
339 //TODO: maybe I32? 349 //TODO: maybe I32?
340 else if (expect_false (nv == (float)nv)) 350 else if (ecb_expect_false (nv == (float)nv))
341 { 351 {
342 uint32_t fp = ecb_float_to_binary32 (nv); 352 uint32_t fp = ecb_float_to_binary32 (nv);
343 353
344 *enc->cur++ = 0xe0 | 26; 354 *enc->cur++ = 0xe0 | 26;
345 355
… …
433 U32 maxdepth; // recursion depth limit 443 U32 maxdepth; // recursion depth limit
434} dec_t; 444} dec_t;
435 445
436#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE 446#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE
437 447
438#define WANT(len) if (expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data"); 448#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")
439 449
440#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) 450#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)
441#define DEC_DEC_DEPTH --dec->depth 451#define DEC_DEC_DEPTH --dec->depth
442 452
443static UV 453static UV
… …
504 514
505 for (;;) 515 for (;;)
506 { 516 {
507 WANT (1); 517 WANT (1);
508 518
509 if (*dec->cur == 0xe0 | 31) 519 if (*dec->cur == (0xe0 | 31))
510 { 520 {
511 ++dec->cur; 521 ++dec->cur;
512 break; 522 break;
513 } 523 }
514 524
… …
547 557
548 for (;;) 558 for (;;)
549 { 559 {
550 WANT (1); 560 WANT (1);
551 561
552 if (*dec->cur == 0xe0 | 31) 562 if (*dec->cur == (0xe0 | 31))
553 { 563 {
554 ++dec->cur; 564 ++dec->cur;
555 break; 565 break;
556 } 566 }
557 567
… …
575 } 585 }
576 586
577 DEC_DEC_DEPTH; 587 DEC_DEC_DEPTH;
578 return newRV_noinc ((SV *)hv); 588 return newRV_noinc ((SV *)hv);
579 589
580#if 0
581 SV *sv;
582 HV *hv = newHV ();
583
584 DEC_INC_DEPTH;
585 decode_ws (dec);
586
587 for (;;)
588 {
589 // heuristic: assume that
590 // a) decode_str + hv_store_ent are abysmally slow.
591 // b) most hash keys are short, simple ascii text.
592 // => try to "fast-match" such strings to avoid
593 // the overhead of decode_str + hv_store_ent.
594 {
595 SV *value;
596 char *p = dec->cur;
597 char *e = p + 24; // only try up to 24 bytes
598
599 for (;;)
600 {
601 // the >= 0x80 is false on most architectures
602 if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\')
603 {
604 // slow path, back up and use decode_str
605 SV *key = decode_str (dec);
606 if (!key)
607 goto fail;
608
609 decode_ws (dec); EXPECT_CH (':');
610
611 decode_ws (dec);
612 value = decode_sv (dec);
613 if (!value)
614 {
615 SvREFCNT_dec (key);
616 goto fail;
617 }
618
619 hv_store_ent (hv, key, value, 0);
620 SvREFCNT_dec (key);
621
622 break;
623 }
624 else if (*p == '"')
625 {
626 // fast path, got a simple key
627 char *key = dec->cur;
628 int len = p - key;
629 dec->cur = p + 1;
630
631 decode_ws (dec); EXPECT_CH (':');
632
633 decode_ws (dec);
634 value = decode_sv (dec);
635 if (!value)
636 goto fail;
637
638 hv_store (hv, key, len, value, 0);
639
640 break;
641 }
642
643 ++p;
644 }
645 }
646
647 decode_ws (dec);
648
649 if (*dec->cur == '}')
650 {
651 ++dec->cur;
652 break;
653 }
654
655 if (*dec->cur != ',')
656 ERR (", or } expected while parsing object/hash");
657
658 ++dec->cur;
659
660 decode_ws (dec);
661
662 if (*dec->cur == '}' && dec->cbor.flags & F_RELAXED)
663 {
664 ++dec->cur;
665 break;
666 }
667 }
668
669 DEC_DEC_DEPTH;
670 sv = newRV_noinc ((SV *)hv);
671
672 // check filter callbacks
673 if (dec->cbor.flags & F_HOOK)
674 {
675 if (dec->cbor.cb_sk_object && HvKEYS (hv) == 1)
676 {
677 HE *cb, *he;
678
679 hv_iterinit (hv);
680 he = hv_iternext (hv);
681 hv_iterinit (hv);
682
683 // the next line creates a mortal sv each time its called.
684 // might want to optimise this for common cases.
685 cb = hv_fetch_ent (dec->cbor.cb_sk_object, hv_iterkeysv (he), 0, 0);
686
687 if (cb)
688 {
689 dSP;
690 int count;
691
692 ENTER; SAVETMPS; PUSHMARK (SP);
693 XPUSHs (HeVAL (he));
694 sv_2mortal (sv);
695
696 PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
697
698 if (count == 1)
699 {
700 sv = newSVsv (POPs);
701 FREETMPS; LEAVE;
702 return sv;
703 }
704
705 SvREFCNT_inc (sv);
706 FREETMPS; LEAVE;
707 }
708 }
709
710 if (dec->cbor.cb_object)
711 {
712 dSP;
713 int count;
714
715 ENTER; SAVETMPS; PUSHMARK (SP);
716 XPUSHs (sv_2mortal (sv));
717
718 PUTBACK; count = call_sv (dec->cbor.cb_object, G_ARRAY); SPAGAIN;
719
720 if (count == 1)
721 {
722 sv = newSVsv (POPs);
723 FREETMPS; LEAVE;
724 return sv;
725 }
726
727 SvREFCNT_inc (sv);
728 FREETMPS; LEAVE;
729 }
730 }
731
732 return sv;
733#endif
734
735fail: 590fail:
736 SvREFCNT_dec (hv); 591 SvREFCNT_dec (hv);
737 DEC_DEC_DEPTH; 592 DEC_DEC_DEPTH;
738 return &PL_sv_undef; 593 return &PL_sv_undef;
739} 594}
740 595
741static SV * 596static SV *
742decode_str (dec_t *dec, int utf8) 597decode_str (dec_t *dec, int utf8)
743{ 598{
744 SV *sv; 599 SV *sv = 0;
745 600
746 if ((*dec->cur & 31) == 31) 601 if ((*dec->cur & 31) == 31)
747 { 602 {
748 ++dec->cur; 603 ++dec->cur;
749 604
… …
752 // not very fast, and certainly not robust against illegal input 607 // not very fast, and certainly not robust against illegal input
753 for (;;) 608 for (;;)
754 { 609 {
755 WANT (1); 610 WANT (1);
756 611
757 if (*dec->cur == 0xe0 | 31) 612 if (*dec->cur == (0xe0 | 31))
758 { 613 {
759 ++dec->cur; 614 ++dec->cur;
760 break; 615 break;
761 } 616 }
762 617
763 SV *sv2 = decode_sv (dec);
764 sv_catsv (sv, sv2); 618 sv_catsv (sv, decode_sv (dec));
765 } 619 }
766 } 620 }
767 else 621 else
768 { 622 {
769 STRLEN len = decode_uint (dec); 623 STRLEN len = decode_uint (dec);
… …
777 SvUTF8_on (sv); 631 SvUTF8_on (sv);
778 632
779 return sv; 633 return sv;
780 634
781fail: 635fail:
636 SvREFCNT_dec (sv);
637 return &PL_sv_undef;
638}
639
640static SV *
641decode_tagged (dec_t *dec)
642{
643 UV tag = decode_uint (dec);
644 SV *sv = decode_sv (dec);
645
646 if (tag == CBOR_TAG_MAGIC)
647 return sv;
648
649 if (tag == CBOR_TAG_PERL_OBJECT)
650 {
651 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
652 ERR ("corrupted CBOR data (non-array perl object)");
653
654 // TODO
655 }
656
657 AV *av = newAV ();
658 av_push (av, newSVuv (tag));
659 av_push (av, sv);
660
661 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
662 ? cbor_tagged_stash
663 : gv_stashpv ("CBOR::XS::Tagged" , 1);
664
665 return sv_bless (newRV_noinc ((SV *)av), tagged_stash);
666
667fail:
668 SvREFCNT_dec (sv);
782 return &PL_sv_undef; 669 return &PL_sv_undef;
783} 670}
784 671
785static SV * 672static SV *
786decode_sv (dec_t *dec) 673decode_sv (dec_t *dec)
… …
788 WANT (1); 675 WANT (1);
789 676
790 switch (*dec->cur >> 5) 677 switch (*dec->cur >> 5)
791 { 678 {
792 case 0: // unsigned int 679 case 0: // unsigned int
793 //TODO: 64 bit values on 3 2bit perls
794 return newSVuv (decode_uint (dec)); 680 return newSVuv (decode_uint (dec));
795 case 1: // negative int 681 case 1: // negative int
796 return newSViv (-1 - (IV)decode_uint (dec)); 682 return newSViv (-1 - (IV)decode_uint (dec));
797 case 2: // octet string 683 case 2: // octet string
798 return decode_str (dec, 0); 684 return decode_str (dec, 0);
… …
801 case 4: // array 687 case 4: // array
802 return decode_av (dec); 688 return decode_av (dec);
803 case 5: // map 689 case 5: // map
804 return decode_hv (dec); 690 return decode_hv (dec);
805 case 6: // tag 691 case 6: // tag
806 abort (); 692 return decode_tagged (dec);
807 break;
808 case 7: // misc 693 case 7: // misc
809 switch (*dec->cur++ & 31) 694 switch (*dec->cur++ & 31)
810 { 695 {
811 case 20: 696 case 20:
812#if CBOR_SLOW 697#if CBOR_SLOW
… …
820 return newSVsv (cbor_true); 705 return newSVsv (cbor_true);
821 case 22: 706 case 22:
822 return newSVsv (&PL_sv_undef); 707 return newSVsv (&PL_sv_undef);
823 708
824 case 25: 709 case 25:
825 // half float
826 abort ();
827 break; 710 {
711 WANT (2);
712
713 uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
714 dec->cur += 2;
715
716 return newSVnv (ecb_binary16_to_float (fp));
717 }
828 718
829 case 26: 719 case 26:
830 { 720 {
831 uint32_t fp; 721 uint32_t fp;
832 WANT (4); 722 WANT (4);
… …
858 ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); 748 ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");
859 } 749 }
860 750
861 break; 751 break;
862 } 752 }
863#if 0
864 switch (*dec->cur)
865 {
866 //case '"': ++dec->cur; return decode_str (dec);
867 case '[': ++dec->cur; return decode_av (dec);
868 case '{': ++dec->cur; return decode_hv (dec);
869
870 case '-':
871 case '0': case '1': case '2': case '3': case '4':
872 case '5': case '6': case '7': case '8': case '9':
873 //TODO return decode_num (dec);
874
875 case 't':
876 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
877 {
878 dec->cur += 4;
879#if CBOR_SLOW
880 cbor_true = get_bool ("CBOR::XS::true");
881#endif
882 return newSVsv (cbor_true);
883 }
884 else
885 ERR ("'true' expected");
886
887 break;
888
889 case 'f':
890 if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
891 {
892 dec->cur += 5;
893#if CBOR_SLOW
894 cbor_false = get_bool ("CBOR::XS::false");
895#endif
896 return newSVsv (cbor_false);
897 }
898 else
899 ERR ("'false' expected");
900
901 break;
902
903 case 'n':
904 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
905 {
906 dec->cur += 4;
907 return newSVsv (&PL_sv_undef);
908 }
909 else
910 ERR ("'null' expected");
911
912 break;
913
914 default:
915 ERR ("malformed CBOR string, neither array, object, number, string or atom");
916 break;
917 }
918#endif
919 753
920fail: 754fail:
921 return &PL_sv_undef; 755 return &PL_sv_undef;
922} 756}
923 757
… …
966 dec.cur = (U8 *)SvPVX (string); 800 dec.cur = (U8 *)SvPVX (string);
967 dec.end = (U8 *)SvEND (string); 801 dec.end = (U8 *)SvEND (string);
968 dec.err = 0; 802 dec.err = 0;
969 dec.depth = 0; 803 dec.depth = 0;
970 804
971 if (dec.cbor.cb_object || dec.cbor.cb_sk_object)
972 ;//TODO dec.cbor.flags |= F_HOOK;
973
974 sv = decode_sv (&dec); 805 sv = decode_sv (&dec);
975 806
976 if (offset_return) 807 if (offset_return)
977 *offset_return = dec.cur; 808 *offset_return = dec.cur;
978 809
979 if (!(offset_return || !sv)) 810 if (!(offset_return || !sv))
980 {
981 if (*dec.cur && !dec.err) 811 if (dec.cur != dec.end && !dec.err)
982 {
983 dec.err = "garbage after CBOR object"; 812 dec.err = "garbage after CBOR object";
813
814 if (dec.err)
815 {
984 SvREFCNT_dec (sv); 816 SvREFCNT_dec (sv);
985 sv = 0;
986 }
987 }
988
989 if (!sv)
990 croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); 817 croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur);
818 }
991 819
992 sv = sv_2mortal (sv); 820 sv = sv_2mortal (sv);
993 821
994 return sv; 822 return sv;
995} 823}
… …
1001 829
1002BOOT: 830BOOT:
1003{ 831{
1004 cbor_stash = gv_stashpv ("CBOR::XS" , 1); 832 cbor_stash = gv_stashpv ("CBOR::XS" , 1);
1005 cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); 833 cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1);
834 cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1);
1006 835
1007 cbor_true = get_bool ("CBOR::XS::true"); 836 cbor_true = get_bool ("CBOR::XS::true");
1008 cbor_false = get_bool ("CBOR::XS::false"); 837 cbor_false = get_bool ("CBOR::XS::false");
1009} 838}
1010 839
… …
1012 841
1013void CLONE (...) 842void CLONE (...)
1014 CODE: 843 CODE:
1015 cbor_stash = 0; 844 cbor_stash = 0;
1016 cbor_boolean_stash = 0; 845 cbor_boolean_stash = 0;
846 cbor_tagged_stash = 0;
1017 847
1018void new (char *klass) 848void new (char *klass)
1019 PPCODE: 849 PPCODE:
1020{ 850{
1021 SV *pv = NEWSV (0, sizeof (CBOR)); 851 SV *pv = NEWSV (0, sizeof (CBOR));
… …
1124 EXTEND (SP, 2); 954 EXTEND (SP, 2);
1125 PUSHs (sv); 955 PUSHs (sv);
1126 PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); 956 PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1127} 957}
1128 958
959#if 0
960
1129void DESTROY (CBOR *self) 961void DESTROY (CBOR *self)
1130 CODE: 962 CODE:
1131 SvREFCNT_dec (self->cb_sk_object); 963 SvREFCNT_dec (self->cb_sk_object);
1132 SvREFCNT_dec (self->cb_object); 964 SvREFCNT_dec (self->cb_object);
1133 965
966#endif
967
1134PROTOTYPES: ENABLE 968PROTOTYPES: ENABLE
1135 969
1136void encode_cbor (SV *scalar) 970void encode_cbor (SV *scalar)
1137 PPCODE: 971 PPCODE:
1138{ 972{

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