ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/CBOR-XS/XS.xs

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.10 by root, Sun Oct 27 20:40:25 2013 UTC vs.
Revision 1.52 by root, Sun Apr 24 19:31:55 2016 UTC

…		…
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"
		14
		15	// compatibility with perl <5.18
		16	#ifndef HvNAMELEN_get
		17	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
		18	#endif
		19	#ifndef HvNAMELEN
		20	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
		21	#endif
		22	#ifndef HvNAMEUTF8
		23	# define HvNAMEUTF8(hv) 0
		24	#endif
		25	#ifndef SvREFCNT_dec_NN
		26	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		27	#endif
		28
		29	// known major and minor types
		30	enum cbor_type
		31	{
		32	MAJOR_SHIFT = 5,
		33	MINOR_MASK = 0x1f,
		34
		35	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		36	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		37	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		38	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		39	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		40	MAJOR_MAP = 5 << MAJOR_SHIFT,
		41	MAJOR_TAG = 6 << MAJOR_SHIFT,
		42	MAJOR_MISC = 7 << MAJOR_SHIFT,
		43
		44	// INT/STRING/ARRAY/MAP subtypes
		45	LENGTH_EXT1 = 24,
		46	LENGTH_EXT2 = 25,
		47	LENGTH_EXT4 = 26,
		48	LENGTH_EXT8 = 27,
		49
		50	// SIMPLE types (effectively MISC subtypes)
		51	SIMPLE_FALSE = 20,
		52	SIMPLE_TRUE = 21,
		53	SIMPLE_NULL = 22,
		54	SIMPLE_UNDEF = 23,
		55
		56	// MISC subtype (unused)
		57	MISC_EXT1 = 24,
		58	MISC_FLOAT16 = 25,
		59	MISC_FLOAT32 = 26,
		60	MISC_FLOAT64 = 27,
		61
		62	// BYTES/TEXT/ARRAY/MAP
		63	MINOR_INDEF = 31,
		64	};
13		65
14	// known tags	66	// known tags
15	enum cbor_tag	67	enum cbor_tag
16	{	68	{
17	// inofficial extensions (pending iana registration)	69	// extensions
18	CBOR_TAG_PERL_OBJECT = 256,	70	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
19	CBOR_TAG_GENERIC_OBJECT = 257,	71	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
		72	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
		73	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
		74	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
		75	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref
		76	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
20		77
21	// rfc7049	78	// rfc7049
22	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	79	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
23	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	80	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
24	CBOR_TAG_POS_BIGNUM = 2, // byte string	81	CBOR_TAG_POS_BIGNUM = 2, // byte string
25	CBOR_TAG_NEG_BIGNUM = 3, // byte string	82	CBOR_TAG_NEG_BIGNUM = 3, // byte string
26	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	83	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
27	CBOR_TAG_BIGFLOAT = 5, // array	84	CBOR_TAG_BIGFLOAT = 5, // array
28		85
29	CBOR_TAG_CONV_B64U = 21, // base64url, any	86	CBOR_TAG_CONV_B64U = 21, // base64url, any
30	CBOR_TAG_CONV_B64 = 22, // base64, any	87	CBOR_TAG_CONV_B64 = 22, // base64, any
31	CBOR_TAG_CONV_HEX = 23, // base16, any	88	CBOR_TAG_CONV_HEX = 23, // base16, any
32	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	89	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
33		90
34	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	91	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
35	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	92	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
36	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	93	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
37	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	94	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
38	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	95	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
39		96
40	CBOR_TAG_MAGIC = 55799 // self-describe cbor	97	CBOR_TAG_MAGIC = 55799, // self-describe cbor
41	};	98	};
42		99
43	#define F_SHRINK 0x00000200UL	100	#define F_SHRINK 0x00000001UL
44	#define F_ALLOW_UNKNOWN 0x00002000UL	101	#define F_ALLOW_UNKNOWN 0x00000002UL
		102	#define F_ALLOW_SHARING 0x00000004UL
		103	#define F_ALLOW_CYCLES 0x00000008UL
		104	#define F_PACK_STRINGS 0x00000010UL
		105	#define F_UTF8_STRINGS 0x00000020UL
		106	#define F_VALIDATE_UTF8 0x00000040UL
45		107
46	#define INIT_SIZE 32 // initial scalar size to be allocated	108	#define INIT_SIZE 32 // initial scalar size to be allocated
47		109
48	#define SB do {	110	#define SB do {
49	#define SE } while (0)	111	#define SE } while (0)
…		…
61	# define CBOR_SLOW 0	123	# define CBOR_SLOW 0
62	# define CBOR_STASH cbor_stash	124	# define CBOR_STASH cbor_stash
63	#endif	125	#endif
64		126
65	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::	127	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::
66	static SV *types_true, *types_false, *types_error;	128	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
67		129
68	typedef struct {	130	typedef struct {
69	U32 flags;	131	U32 flags;
70	U32 max_depth;	132	U32 max_depth;
71	STRLEN max_size;	133	STRLEN max_size;
		134	SV *filter;
		135
		136	// for the incremental parser
		137	STRLEN incr_pos; // the current offset into the text
		138	STRLEN incr_need; // minimum bytes needed to decode
		139	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
72	} CBOR;	140	} CBOR;
73		141
74	ecb_inline void	142	ecb_inline void
75	cbor_init (CBOR *cbor)	143	cbor_init (CBOR *cbor)
76	{	144	{
77	Zero (cbor, 1, CBOR);	145	Zero (cbor, 1, CBOR);
78	cbor->max_depth = 512;	146	cbor->max_depth = 512;
		147	}
		148
		149	ecb_inline void
		150	cbor_free (CBOR *cbor)
		151	{
		152	SvREFCNT_dec (cbor->filter);
		153	SvREFCNT_dec (cbor->incr_count);
79	}	154	}
80		155
81	/////////////////////////////////////////////////////////////////////////////	156	/////////////////////////////////////////////////////////////////////////////
82	// utility functions	157	// utility functions
83		158
…		…
105	SvPV_renew (sv, SvCUR (sv) + 1);	180	SvPV_renew (sv, SvCUR (sv) + 1);
106	#endif	181	#endif
107	}	182	}
108	}	183	}
109		184
110	/////////////////////////////////////////////////////////////////////////////	185	// minimum length of a string to be registered for stringref
111	// fp hell	186	ecb_inline int
112		187	minimum_string_length (UV idx)
113	//TODO	188	{
		189	return idx > 23
		190	? idx > 0xffU
		191	? idx > 0xffffU
		192	? idx > 0xffffffffU
		193	? 11
		194	: 7
		195	: 5
		196	: 4
		197	: 3;
		198	}
114		199
115	/////////////////////////////////////////////////////////////////////////////	200	/////////////////////////////////////////////////////////////////////////////
116	// encoder	201	// encoder
117		202
118	// structure used for encoding CBOR	203	// structure used for encoding CBOR
…		…
121	char *cur; // SvPVX (sv) + current output position	206	char *cur; // SvPVX (sv) + current output position
122	char *end; // SvEND (sv)	207	char *end; // SvEND (sv)
123	SV *sv; // result scalar	208	SV *sv; // result scalar
124	CBOR cbor;	209	CBOR cbor;
125	U32 depth; // recursion level	210	U32 depth; // recursion level
		211	HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8)
		212	UV stringref_idx;
		213	HV *shareable; // ptr => index, or 0
		214	UV shareable_idx;
126	} enc_t;	215	} enc_t;
127		216
128	ecb_inline void	217	ecb_inline void
129	need (enc_t *enc, STRLEN len)	218	need (enc_t *enc, STRLEN len)
130	{	219	{
…		…
147	static void	236	static void
148	encode_uint (enc_t *enc, int major, UV len)	237	encode_uint (enc_t *enc, int major, UV len)
149	{	238	{
150	need (enc, 9);	239	need (enc, 9);
151		240
152	if (len < 24)	241	if (ecb_expect_true (len < LENGTH_EXT1))
153	*enc->cur++ = major | len;	242	*enc->cur++ = major | len;
154	else if (len <= 0xff)	243	else if (ecb_expect_true (len <= 0xffU))
155	{	244	{
156	*enc->cur++ = major | 24;	245	*enc->cur++ = major | LENGTH_EXT1;
157	*enc->cur++ = len;	246	*enc->cur++ = len;
158	}	247	}
159	else if (len <= 0xffff)	248	else if (len <= 0xffffU)
160	{	249	{
161	*enc->cur++ = major | 25;	250	*enc->cur++ = major | LENGTH_EXT2;
162	*enc->cur++ = len >> 8;	251	*enc->cur++ = len >> 8;
163	*enc->cur++ = len;	252	*enc->cur++ = len;
164	}	253	}
165	else if (len <= 0xffffffff)	254	else if (len <= 0xffffffffU)
166	{	255	{
167	*enc->cur++ = major | 26;	256	*enc->cur++ = major | LENGTH_EXT4;
168	*enc->cur++ = len >> 24;	257	*enc->cur++ = len >> 24;
169	*enc->cur++ = len >> 16;	258	*enc->cur++ = len >> 16;
170	*enc->cur++ = len >> 8;	259	*enc->cur++ = len >> 8;
171	*enc->cur++ = len;	260	*enc->cur++ = len;
172	}	261	}
173	else	262	else
174	{	263	{
175	*enc->cur++ = major | 27;	264	*enc->cur++ = major | LENGTH_EXT8;
176	*enc->cur++ = len >> 56;	265	*enc->cur++ = len >> 56;
177	*enc->cur++ = len >> 48;	266	*enc->cur++ = len >> 48;
178	*enc->cur++ = len >> 40;	267	*enc->cur++ = len >> 40;
179	*enc->cur++ = len >> 32;	268	*enc->cur++ = len >> 32;
180	*enc->cur++ = len >> 24;	269	*enc->cur++ = len >> 24;
…		…
182	*enc->cur++ = len >> 8;	271	*enc->cur++ = len >> 8;
183	*enc->cur++ = len;	272	*enc->cur++ = len;
184	}	273	}
185	}	274	}
186		275
187	static void	276	ecb_inline void
		277	encode_tag (enc_t *enc, UV tag)
		278	{
		279	encode_uint (enc, MAJOR_TAG, tag);
		280	}
		281
		282	ecb_inline void
188	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	283	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)
189	{	284	{
190	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	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
		310	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
191	need (enc, len);	311	need (enc, len);
192	memcpy (enc->cur, str, len);	312	memcpy (enc->cur, str, len);
193	enc->cur += len;	313	enc->cur += len;
194	}	314	}
195		315
		316	static void
		317	encode_strref (enc_t *enc, int utf8, char *str, STRLEN len)
		318	{
		319	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
		320	{
		321	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
		322
		323	if (SvOK (*svp))
		324	{
		325	// already registered, use stringref
		326	encode_tag (enc, CBOR_TAG_STRINGREF);
		327	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		328	return;
		329	}
		330	else if (len >= minimum_string_length (enc->stringref_idx))
		331	{
		332	// register only
		333	sv_setuv (*svp, enc->stringref_idx);
		334	++enc->stringref_idx;
		335	}
		336	}
		337
		338	encode_str (enc, utf8, str, len);
		339	}
		340
196	static void encode_sv (enc_t *enc, SV *sv);	341	static void encode_sv (enc_t *enc, SV *sv);
197		342
198	static void	343	static void
199	encode_av (enc_t *enc, AV *av)	344	encode_av (enc_t *enc, AV *av)
200	{	345	{
…		…
203	if (enc->depth >= enc->cbor.max_depth)	348	if (enc->depth >= enc->cbor.max_depth)
204	croak (ERR_NESTING_EXCEEDED);	349	croak (ERR_NESTING_EXCEEDED);
205		350
206	++enc->depth;	351	++enc->depth;
207		352
208	encode_uint (enc, 0x80, len + 1);	353	encode_uint (enc, MAJOR_ARRAY, len + 1);
209		354
		355	if (SvMAGICAL (av))
210	for (i = 0; i <= len; ++i)	356	for (i = 0; i <= len; ++i)
211	{	357	{
212	SV **svp = av_fetch (av, i, 0);	358	SV **svp = av_fetch (av, i, 0);
213	encode_sv (enc, svp ? *svp : &PL_sv_undef);	359	encode_sv (enc, svp ? *svp : &PL_sv_undef);
214	}	360	}
		361	else
		362	for (i = 0; i <= len; ++i)
		363	{
		364	SV *sv = AvARRAY (av)[i];
		365	encode_sv (enc, sv ? sv : &PL_sv_undef);
		366	}
215		367
216	--enc->depth;	368	--enc->depth;
217	}	369	}
218		370
219	static void	371	static void
…		…
228		380
229	int pairs = hv_iterinit (hv);	381	int pairs = hv_iterinit (hv);
230	int mg = SvMAGICAL (hv);	382	int mg = SvMAGICAL (hv);
231		383
232	if (mg)	384	if (mg)
233	encode_ch (enc, 0xa0 | 31);	385	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
234	else	386	else
235	encode_uint (enc, 0xa0, pairs);	387	encode_uint (enc, MAJOR_MAP, pairs);
236		388
237	while ((he = hv_iternext (hv)))	389	while ((he = hv_iternext (hv)))
238	{	390	{
239	if (HeKLEN (he) == HEf_SVKEY)	391	if (HeKLEN (he) == HEf_SVKEY)
240	encode_sv (enc, HeSVKEY (he));	392	encode_sv (enc, HeSVKEY (he));
241	else	393	else
242	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	394	encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
243		395
244	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	396	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
245	}	397	}
246		398
247	if (mg)	399	if (mg)
248	encode_ch (enc, 0xe0 | 31);	400	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
249		401
250	--enc->depth;	402	--enc->depth;
251	}	403	}
252		404
253	// encode objects, arrays and special \0=false and \1=true values.	405	// encode objects, arrays and special \0=false and \1=true values.
254	static void	406	static void
255	encode_rv (enc_t *enc, SV *sv)	407	encode_rv (enc_t *enc, SV *sv)
256	{	408	{
257	svtype svt;
258
259	SvGETMAGIC (sv);	409	SvGETMAGIC (sv);
		410
260	svt = SvTYPE (sv);	411	svtype svt = SvTYPE (sv);
261		412
262	if (ecb_expect_false (SvOBJECT (sv)))	413	if (ecb_expect_false (SvOBJECT (sv)))
263	{	414	{
264	HV *boolean_stash = !CBOR_SLOW || types_boolean_stash	415	HV *boolean_stash = !CBOR_SLOW || types_boolean_stash
265	? types_boolean_stash	416	? types_boolean_stash
…		…
269	: gv_stashpv ("Types::Serialiser::Error", 1);	420	: gv_stashpv ("Types::Serialiser::Error", 1);
270	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	421	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
271	? cbor_tagged_stash	422	? cbor_tagged_stash
272	: gv_stashpv ("CBOR::XS::Tagged" , 1);	423	: gv_stashpv ("CBOR::XS::Tagged" , 1);
273		424
		425	HV *stash = SvSTASH (sv);
		426
274	if (SvSTASH (sv) == boolean_stash)	427	if (stash == boolean_stash)
275	encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);	428	{
		429	encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE);
		430	return;
		431	}
276	else if (SvSTASH (sv) == error_stash)	432	else if (stash == error_stash)
277	encode_ch (enc, 0xe0 | 23);	433	{
		434	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		435	return;
		436	}
278	else if (SvSTASH (sv) == tagged_stash)	437	else if (stash == tagged_stash)
279	{	438	{
280	if (svt != SVt_PVAV)	439	if (svt != SVt_PVAV)
281	croak ("encountered CBOR::XS::Tagged object that isn't an array");	440	croak ("encountered CBOR::XS::Tagged object that isn't an array");
282		441
283	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	442	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
284	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));	443	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
		444
		445	return;
		446	}
		447	}
		448
		449	if (ecb_expect_false (SvREFCNT (sv) > 1)
		450	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		451	{
		452	if (!enc->shareable)
		453	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
		454
		455	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
		456
		457	if (SvOK (*svp))
		458	{
		459	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		460	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		461	return;
285	}	462	}
286	else	463	else
287	{	464	{
		465	sv_setuv (*svp, enc->shareable_idx);
		466	++enc->shareable_idx;
		467	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		468	}
		469	}
		470
		471	if (ecb_expect_false (SvOBJECT (sv)))
		472	{
		473	HV *stash = SvSTASH (sv);
		474	GV *method;
		475
		476	if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
		477	{
		478	dSP;
		479
		480	ENTER; SAVETMPS;
		481	PUSHMARK (SP);
288	// 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
289	GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0);
290
291	if (to_cbor)
292	{
293	dSP;
294
295	ENTER; SAVETMPS; PUSHMARK (SP);
296	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));	483	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
297		484
298	// calling with G_SCALAR ensures that we always get a 1 return value
299	PUTBACK;	485	PUTBACK;
		486	// G_SCALAR ensures that return value is 1
300	call_sv ((SV *)GvCV (to_cbor), G_SCALAR);	487	call_sv ((SV *)GvCV (method), G_SCALAR);
301	SPAGAIN;	488	SPAGAIN;
302		489
303	// catch this surprisingly common error	490	// catch this surprisingly common error
304	if (SvROK (TOPs) && SvRV (TOPs) == sv)	491	if (SvROK (TOPs) && SvRV (TOPs) == sv)
305	croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));	492	croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash));
306		493
307	sv = POPs;	494	encode_sv (enc, POPs);
		495
308	PUTBACK;	496	PUTBACK;
309		497
310	encode_sv (enc, sv);
311
312	FREETMPS; LEAVE;	498	FREETMPS; LEAVE;
313	}	499	}
		500	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
		501	{
		502	dSP;
		503
		504	ENTER; SAVETMPS;
		505	SAVESTACK_POS ();
		506	PUSHMARK (SP);
		507	EXTEND (SP, 2);
		508	// we re-bless the reference to get overload and other niceties right
		509	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		510	PUSHs (sv_cbor);
		511
		512	PUTBACK;
		513	int count = call_sv ((SV *)GvCV (method), G_ARRAY);
		514	SPAGAIN;
		515
		516	// catch this surprisingly common error
		517	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
		518	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
		519
		520	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
		521	encode_uint (enc, MAJOR_ARRAY, count + 1);
		522	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
		523
		524	while (count)
		525	encode_sv (enc, SP[1 - count--]);
		526
		527	PUTBACK;
		528
		529	FREETMPS; LEAVE;
		530	}
314	else	531	else
315	croak ("encountered object '%s', but no TO_CBOR method available on it",	532	croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it",
316	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	533	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
317	}
318	}	534	}
319	else if (svt == SVt_PVHV)	535	else if (svt == SVt_PVHV)
320	encode_hv (enc, (HV *)sv);	536	encode_hv (enc, (HV *)sv);
321	else if (svt == SVt_PVAV)	537	else if (svt == SVt_PVAV)
322	encode_av (enc, (AV *)sv);	538	encode_av (enc, (AV *)sv);
323	else if (svt < SVt_PVAV)
324	{
325	STRLEN len = 0;
326	char *pv = svt ? SvPV (sv, len) : 0;
327
328	if (len == 1 && *pv == '1')
329	encode_ch (enc, 0xe0 | 21);
330	else if (len == 1 && *pv == '0')
331	encode_ch (enc, 0xe0 | 20);
332	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
333	encode_ch (enc, 0xe0 | 23);
334	else
335	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
336	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
337	}
338	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
339	encode_ch (enc, 0xe0 | 23);
340	else	539	else
341	croak ("encountered %s, but CBOR can only represent references to arrays or hashes",	540	{
342	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	541	encode_tag (enc, CBOR_TAG_INDIRECTION);
		542	encode_sv (enc, sv);
		543	}
343	}	544	}
344		545
345	static void	546	static void
346	encode_nv (enc_t *enc, SV *sv)	547	encode_nv (enc_t *enc, SV *sv)
347	{	548	{
348	double nv = SvNVX (sv);	549	double nv = SvNVX (sv);
349		550
350	need (enc, 9);	551	need (enc, 9);
351		552
352	if (ecb_expect_false (nv == (U32)nv))	553	if (ecb_expect_false (nv == (NV)(U32)nv))
353	encode_uint (enc, 0x00, (U32)nv);	554	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
354	//TODO: maybe I32?	555	//TODO: maybe I32?
355	else if (ecb_expect_false (nv == (float)nv))	556	else if (ecb_expect_false (nv == (float)nv))
356	{	557	{
357	uint32_t fp = ecb_float_to_binary32 (nv);	558	uint32_t fp = ecb_float_to_binary32 (nv);
358		559
359	*enc->cur++ = 0xe0 | 26;	560	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
360		561
361	if (!ecb_big_endian ())	562	if (!ecb_big_endian ())
362	fp = ecb_bswap32 (fp);	563	fp = ecb_bswap32 (fp);
363		564
364	memcpy (enc->cur, &fp, 4);	565	memcpy (enc->cur, &fp, 4);
…		…
366	}	567	}
367	else	568	else
368	{	569	{
369	uint64_t fp = ecb_double_to_binary64 (nv);	570	uint64_t fp = ecb_double_to_binary64 (nv);
370		571
371	*enc->cur++ = 0xe0 | 27;	572	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
372		573
373	if (!ecb_big_endian ())	574	if (!ecb_big_endian ())
374	fp = ecb_bswap64 (fp);	575	fp = ecb_bswap64 (fp);
375		576
376	memcpy (enc->cur, &fp, 8);	577	memcpy (enc->cur, &fp, 8);
…		…
385		586
386	if (SvPOKp (sv))	587	if (SvPOKp (sv))
387	{	588	{
388	STRLEN len;	589	STRLEN len;
389	char *str = SvPV (sv, len);	590	char *str = SvPV (sv, len);
390	encode_str (enc, SvUTF8 (sv), str, len);	591	encode_strref (enc, SvUTF8 (sv), str, len);
391	}	592	}
392	else if (SvNOKp (sv))	593	else if (SvNOKp (sv))
393	encode_nv (enc, sv);	594	encode_nv (enc, sv);
394	else if (SvIOKp (sv))	595	else if (SvIOKp (sv))
395	{	596	{
396	if (SvIsUV (sv))	597	if (SvIsUV (sv))
397	encode_uint (enc, 0x00, SvUVX (sv));	598	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
398	else if (SvIVX (sv) >= 0)	599	else if (SvIVX (sv) >= 0)
399	encode_uint (enc, 0x00, SvIVX (sv));	600	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
400	else	601	else
401	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	602	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
402	}	603	}
403	else if (SvROK (sv))	604	else if (SvROK (sv))
404	encode_rv (enc, SvRV (sv));	605	encode_rv (enc, SvRV (sv));
405	else if (!SvOK (sv))	606	else if (!SvOK (sv))
406	encode_ch (enc, 0xe0 | 22);	607	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
407	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	608	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
408	encode_ch (enc, 0xe0 | 23);	609	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
409	else	610	else
410	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	611	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
411	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	612	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
412	}	613	}
413		614
414	static SV *	615	static SV *
415	encode_cbor (SV *scalar, CBOR *cbor)	616	encode_cbor (SV *scalar, CBOR *cbor)
416	{	617	{
417	enc_t enc;	618	enc_t enc = { 0 };
418		619
419	enc.cbor = *cbor;	620	enc.cbor = *cbor;
420	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	621	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
421	enc.cur = SvPVX (enc.sv);	622	enc.cur = SvPVX (enc.sv);
422	enc.end = SvEND (enc.sv);	623	enc.end = SvEND (enc.sv);
423	enc.depth = 0;
424		624
425	SvPOK_only (enc.sv);	625	SvPOK_only (enc.sv);
		626
		627	if (cbor->flags & F_PACK_STRINGS)
		628	{
		629	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
		630	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
		631	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
		632	}
		633
426	encode_sv (&enc, scalar);	634	encode_sv (&enc, scalar);
427		635
428	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	636	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
429	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	637	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
430		638
…		…
444	U8 *end; // end of input string	652	U8 *end; // end of input string
445	const char *err; // parse error, if != 0	653	const char *err; // parse error, if != 0
446	CBOR cbor;	654	CBOR cbor;
447	U32 depth; // recursion depth	655	U32 depth; // recursion depth
448	U32 maxdepth; // recursion depth limit	656	U32 maxdepth; // recursion depth limit
		657	AV *shareable;
		658	AV *stringref;
		659	SV *decode_tagged;
449	} dec_t;	660	} dec_t;
450		661
451	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	662	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE
452		663
453	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	664	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")
…		…
456	#define DEC_DEC_DEPTH --dec->depth	667	#define DEC_DEC_DEPTH --dec->depth
457		668
458	static UV	669	static UV
459	decode_uint (dec_t *dec)	670	decode_uint (dec_t *dec)
460	{	671	{
461	switch (*dec->cur & 31)	672	U8 m = *dec->cur & MINOR_MASK;
462	{	673	++dec->cur;
463	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
464	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
465	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
466	return *dec->cur++ & 31;
467		674
468	case 24:	675	if (ecb_expect_true (m < LENGTH_EXT1))
		676	return m;
		677	else if (ecb_expect_true (m == LENGTH_EXT1))
		678	{
469	WANT (2);	679	WANT (1);
470	dec->cur += 2;	680	dec->cur += 1;
471	return dec->cur[-1];	681	return dec->cur[-1];
472		682	}
473	case 25:	683	else if (ecb_expect_true (m == LENGTH_EXT2))
		684	{
474	WANT (3);	685	WANT (2);
475	dec->cur += 3;	686	dec->cur += 2;
476	return (((UV)dec->cur[-2]) << 8)	687	return (((UV)dec->cur[-2]) << 8)
477	| ((UV)dec->cur[-1]);	688	| ((UV)dec->cur[-1]);
478		689	}
479	case 26:	690	else if (ecb_expect_true (m == LENGTH_EXT4))
		691	{
480	WANT (5);	692	WANT (4);
481	dec->cur += 5;	693	dec->cur += 4;
482	return (((UV)dec->cur[-4]) << 24)	694	return (((UV)dec->cur[-4]) << 24)
483	| (((UV)dec->cur[-3]) << 16)	695	| (((UV)dec->cur[-3]) << 16)
484	| (((UV)dec->cur[-2]) << 8)	696	| (((UV)dec->cur[-2]) << 8)
485	| ((UV)dec->cur[-1]);	697	| ((UV)dec->cur[-1]);
486		698	}
487	case 27:	699	else if (ecb_expect_true (m == LENGTH_EXT8))
		700	{
488	WANT (9);	701	WANT (8);
489	dec->cur += 9;	702	dec->cur += 8;
		703
		704	return
		705	#if UVSIZE < 8
		706	0
		707	#else
490	return (((UV)dec->cur[-8]) << 56)	708	(((UV)dec->cur[-8]) << 56)
491	| (((UV)dec->cur[-7]) << 48)	709	| (((UV)dec->cur[-7]) << 48)
492	| (((UV)dec->cur[-6]) << 40)	710	| (((UV)dec->cur[-6]) << 40)
493	| (((UV)dec->cur[-5]) << 32)	711	| (((UV)dec->cur[-5]) << 32)
		712	#endif
494	| (((UV)dec->cur[-4]) << 24)	713	| (((UV)dec->cur[-4]) << 24)
495	| (((UV)dec->cur[-3]) << 16)	714	| (((UV)dec->cur[-3]) << 16)
496	| (((UV)dec->cur[-2]) << 8)	715	| (((UV)dec->cur[-2]) << 8)
497	| ((UV)dec->cur[-1]);	716	| ((UV)dec->cur[-1]);
498		717	}
499	default:	718	else
500	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	719	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
501	}
502		720
503	fail:	721	fail:
504	return 0;	722	return 0;
505	}	723	}
506		724
…		…
511	{	729	{
512	AV *av = newAV ();	730	AV *av = newAV ();
513		731
514	DEC_INC_DEPTH;	732	DEC_INC_DEPTH;
515		733
516	if ((*dec->cur & 31) == 31)	734	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
517	{	735	{
518	++dec->cur;	736	++dec->cur;
519		737
520	for (;;)	738	for (;;)
521	{	739	{
522	WANT (1);	740	WANT (1);
523		741
524	if (*dec->cur == (0xe0 | 31))	742	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
525	{	743	{
526	++dec->cur;	744	++dec->cur;
527	break;	745	break;
528	}	746	}
529		747
…		…
532	}	750	}
533	else	751	else
534	{	752	{
535	int i, len = decode_uint (dec);	753	int i, len = decode_uint (dec);
536		754
		755	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
537	av_fill (av, len - 1);	756	av_fill (av, len - 1);
538		757
539	for (i = 0; i < len; ++i)	758	for (i = 0; i < len; ++i)
540	AvARRAY (av)[i] = decode_sv (dec);	759	AvARRAY (av)[i] = decode_sv (dec);
541	}	760	}
…		…
547	SvREFCNT_dec (av);	766	SvREFCNT_dec (av);
548	DEC_DEC_DEPTH;	767	DEC_DEC_DEPTH;
549	return &PL_sv_undef;	768	return &PL_sv_undef;
550	}	769	}
551		770
		771	static void
		772	decode_he (dec_t *dec, HV *hv)
		773	{
		774	// for speed reasons, we specialcase single-string
		775	// byte or utf-8 strings as keys, but only when !stringref
		776
		777	if (ecb_expect_true (!dec->stringref))
		778	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
		779	{
		780	I32 len = decode_uint (dec);
		781	char *key = (char *)dec->cur;
		782
		783	WANT (len);
		784	dec->cur += len;
		785
		786	hv_store (hv, key, len, decode_sv (dec), 0);
		787
		788	return;
		789	}
		790	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
		791	{
		792	I32 len = decode_uint (dec);
		793	char *key = (char *)dec->cur;
		794
		795	WANT (len);
		796	dec->cur += len;
		797
		798	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		799	if (!is_utf8_string (key, len))
		800	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
		801
		802	hv_store (hv, key, -len, decode_sv (dec), 0);
		803
		804	return;
		805	}
		806
		807	SV *k = decode_sv (dec);
		808	SV *v = decode_sv (dec);
		809
		810	hv_store_ent (hv, k, v, 0);
		811	SvREFCNT_dec (k);
		812
		813	fail:
		814	;
		815	}
		816
552	static SV *	817	static SV *
553	decode_hv (dec_t *dec)	818	decode_hv (dec_t *dec)
554	{	819	{
555	HV *hv = newHV ();	820	HV *hv = newHV ();
556		821
557	DEC_INC_DEPTH;	822	DEC_INC_DEPTH;
558		823
559	if ((*dec->cur & 31) == 31)	824	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
560	{	825	{
561	++dec->cur;	826	++dec->cur;
562		827
563	for (;;)	828	for (;;)
564	{	829	{
565	WANT (1);	830	WANT (1);
566		831
567	if (*dec->cur == (0xe0 | 31))	832	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
568	{	833	{
569	++dec->cur;	834	++dec->cur;
570	break;	835	break;
571	}	836	}
572		837
573	SV *k = decode_sv (dec);	838	decode_he (dec, hv);
574	SV *v = decode_sv (dec);
575
576	hv_store_ent (hv, k, v, 0);
577	}	839	}
578	}	840	}
579	else	841	else
580	{	842	{
581	int len = decode_uint (dec);	843	int pairs = decode_uint (dec);
582		844
583	while (len--)	845	while (pairs--)
584	{	846	decode_he (dec, hv);
585	SV *k = decode_sv (dec);
586	SV *v = decode_sv (dec);
587
588	hv_store_ent (hv, k, v, 0);
589	}
590	}	847	}
591		848
592	DEC_DEC_DEPTH;	849	DEC_DEC_DEPTH;
593	return newRV_noinc ((SV *)hv);	850	return newRV_noinc ((SV *)hv);
594		851
…		…
601	static SV *	858	static SV *
602	decode_str (dec_t *dec, int utf8)	859	decode_str (dec_t *dec, int utf8)
603	{	860	{
604	SV *sv = 0;	861	SV *sv = 0;
605		862
606	if ((*dec->cur & 31) == 31)	863	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
607	{	864	{
		865	// indefinite length strings
608	++dec->cur;	866	++dec->cur;
609		867
		868	U8 major = *dec->cur & MAJOR_MISC;
		869
610	sv = newSVpvn ("", 0);	870	sv = newSVpvn ("", 0);
611		871
612	// not very fast, and certainly not robust against illegal input
613	for (;;)	872	for (;;)
614	{	873	{
615	WANT (1);	874	WANT (1);
616		875
617	if (*dec->cur == (0xe0 | 31))	876	if ((*dec->cur - major) > LENGTH_EXT8)
		877	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
618	{	878	{
619	++dec->cur;	879	++dec->cur;
620	break;	880	break;
621	}	881	}
		882	else
		883	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
622		884
623	sv_catsv (sv, decode_sv (dec));	885	STRLEN len = decode_uint (dec);
		886
		887	WANT (len);
		888	sv_catpvn (sv, dec->cur, len);
		889	dec->cur += len;
624	}	890	}
625	}	891	}
626	else	892	else
627	{	893	{
628	STRLEN len = decode_uint (dec);	894	STRLEN len = decode_uint (dec);
629		895
630	WANT (len);	896	WANT (len);
631	sv = newSVpvn (dec->cur, len);	897	sv = newSVpvn (dec->cur, len);
632	dec->cur += len;	898	dec->cur += len;
		899
		900	if (ecb_expect_false (dec->stringref)
		901	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		902	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
633	}	903	}
634		904
635	if (utf8)	905	if (utf8)
		906	{
		907	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		908	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		909	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		910
636	SvUTF8_on (sv);	911	SvUTF8_on (sv);
		912	}
637		913
638	return sv;	914	return sv;
639		915
640	fail:	916	fail:
641	SvREFCNT_dec (sv);	917	SvREFCNT_dec (sv);
…		…
643	}	919	}
644		920
645	static SV *	921	static SV *
646	decode_tagged (dec_t *dec)	922	decode_tagged (dec_t *dec)
647	{	923	{
		924	SV *sv = 0;
648	UV tag = decode_uint (dec);	925	UV tag = decode_uint (dec);
		926
		927	WANT (1);
		928
		929	switch (tag)
		930	{
		931	case CBOR_TAG_MAGIC:
649	SV *sv = decode_sv (dec);	932	sv = decode_sv (dec);
		933	break;
650		934
651	if (tag == CBOR_TAG_MAGIC)	935	case CBOR_TAG_INDIRECTION:
652	return sv;	936	sv = newRV_noinc (decode_sv (dec));
		937	break;
653		938
654	if (tag == CBOR_TAG_PERL_OBJECT)	939	case CBOR_TAG_STRINGREF_NAMESPACE:
655	{	940	{
		941	ENTER; SAVETMPS;
		942
		943	SAVESPTR (dec->stringref);
		944	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
		945
		946	sv = decode_sv (dec);
		947
		948	FREETMPS; LEAVE;
		949	}
		950	break;
		951
		952	case CBOR_TAG_STRINGREF:
		953	{
		954	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
		955	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
		956
		957	UV idx = decode_uint (dec);
		958
		959	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))
		960	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
		961
		962	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
		963	}
		964	break;
		965
		966	case CBOR_TAG_VALUE_SHAREABLE:
		967	{
		968	if (ecb_expect_false (!dec->shareable))
		969	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
		970
		971	if (dec->cbor.flags & F_ALLOW_CYCLES)
		972	{
		973	sv = newSV (0);
		974	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
		975
		976	SV *osv = decode_sv (dec);
		977	sv_setsv (sv, osv);
		978	SvREFCNT_dec_NN (osv);
		979	}
		980	else
		981	{
		982	av_push (dec->shareable, &PL_sv_undef);
		983	int idx = AvFILLp (dec->shareable);
		984	sv = decode_sv (dec);
		985	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		986	}
		987	}
		988	break;
		989
		990	case CBOR_TAG_VALUE_SHAREDREF:
		991	{
		992	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
		993	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
		994
		995	UV idx = decode_uint (dec);
		996
		997	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))
		998	ERR ("corrupted CBOR data (sharedref index out of bounds)");
		999
		1000	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1001
		1002	if (sv == &PL_sv_undef)
		1003	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
		1004	}
		1005	break;
		1006
		1007	case CBOR_TAG_PERL_OBJECT:
		1008	{
		1009	sv = decode_sv (dec);
		1010
656	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1011	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
657	ERR ("corrupted CBOR data (non-array perl object)");	1012	ERR ("corrupted CBOR data (non-array perl object)");
		1013
		1014	AV *av = (AV *)SvRV (sv);
		1015	int len = av_len (av) + 1;
		1016	HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0);
		1017
		1018	if (!stash)
		1019	ERR ("cannot decode perl-object (package does not exist)");
		1020
		1021	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1022
		1023	if (!method)
		1024	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1025
		1026	dSP;
		1027
		1028	ENTER; SAVETMPS;
		1029	PUSHMARK (SP);
		1030	EXTEND (SP, len + 1);
		1031	// we re-bless the reference to get overload and other niceties right
		1032	PUSHs (*av_fetch (av, 0, 1));
		1033	PUSHs (sv_cbor);
		1034
		1035	int i;
		1036
		1037	for (i = 1; i < len; ++i)
		1038	PUSHs (*av_fetch (av, i, 1));
		1039
		1040	PUTBACK;
		1041	call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL);
		1042	SPAGAIN;
		1043
		1044	if (SvTRUE (ERRSV))
		1045	{
		1046	FREETMPS; LEAVE;
		1047	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));
		1048	}
		1049
		1050	SvREFCNT_dec (sv);
		1051	sv = SvREFCNT_inc (POPs);
		1052
		1053	PUTBACK;
		1054
		1055	FREETMPS; LEAVE;
658		1056	}
659	// TODO	1057	break;
660	}
661		1058
		1059	default:
		1060	{
		1061	sv = decode_sv (dec);
		1062
		1063	dSP;
		1064	ENTER; SAVETMPS;
		1065	SAVESTACK_POS ();
		1066	PUSHMARK (SP);
		1067	EXTEND (SP, 2);
		1068	PUSHs (newSVuv (tag));
		1069	PUSHs (sv);
		1070
		1071	PUTBACK;
		1072	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
		1073	SPAGAIN;
		1074
		1075	if (SvTRUE (ERRSV))
		1076	{
		1077	FREETMPS; LEAVE;
		1078	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));
		1079	}
		1080
		1081	if (count)
		1082	{
		1083	SvREFCNT_dec (sv);
		1084	sv = SvREFCNT_inc (POPs);
		1085	}
		1086	else
		1087	{
662	AV *av = newAV ();	1088	AV *av = newAV ();
663	av_push (av, newSVuv (tag));	1089	av_push (av, newSVuv (tag));
664	av_push (av, sv);	1090	av_push (av, sv);
665		1091
666	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1092	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
667	? cbor_tagged_stash	1093	? cbor_tagged_stash
668	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1094	: gv_stashpv ("CBOR::XS::Tagged" , 1);
669
670	return sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1095	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1096	}
		1097
		1098	PUTBACK;
		1099
		1100	FREETMPS; LEAVE;
		1101	}
		1102	break;
		1103	}
		1104
		1105	return sv;
671		1106
672	fail:	1107	fail:
673	SvREFCNT_dec (sv);	1108	SvREFCNT_dec (sv);
674	return &PL_sv_undef;	1109	return &PL_sv_undef;
675	}	1110	}
…		…
677	static SV *	1112	static SV *
678	decode_sv (dec_t *dec)	1113	decode_sv (dec_t *dec)
679	{	1114	{
680	WANT (1);	1115	WANT (1);
681		1116
682	switch (*dec->cur >> 5)	1117	switch (*dec->cur >> MAJOR_SHIFT)
683	{	1118	{
684	case 0: // unsigned int	1119	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
685	return newSVuv (decode_uint (dec));	1120	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
686	case 1: // negative int	1121	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
687	return newSViv (-1 - (IV)decode_uint (dec));	1122	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
688	case 2: // octet string	1123	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
689	return decode_str (dec, 0);	1124	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
690	case 3: // utf-8 string	1125	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
691	return decode_str (dec, 1);	1126
692	case 4: // array	1127	case MAJOR_MISC >> MAJOR_SHIFT:
693	return decode_av (dec);
694	case 5: // map
695	return decode_hv (dec);
696	case 6: // tag
697	return decode_tagged (dec);
698	case 7: // misc
699	switch (*dec->cur++ & 31)	1128	switch (*dec->cur++ & MINOR_MASK)
700	{	1129	{
701	case 20:	1130	case SIMPLE_FALSE:
702	#if CBOR_SLOW	1131	#if CBOR_SLOW
703	types_false = get_bool ("Types::Serialiser::false");	1132	types_false = get_bool ("Types::Serialiser::false");
704	#endif	1133	#endif
705	return newSVsv (types_false);	1134	return newSVsv (types_false);
706	case 21:	1135	case SIMPLE_TRUE:
707	#if CBOR_SLOW	1136	#if CBOR_SLOW
708	types_true = get_bool ("Types::Serialiser::true");	1137	types_true = get_bool ("Types::Serialiser::true");
709	#endif	1138	#endif
710	return newSVsv (types_true);	1139	return newSVsv (types_true);
711	case 22:	1140	case SIMPLE_NULL:
712	return newSVsv (&PL_sv_undef);	1141	return newSVsv (&PL_sv_undef);
713	case 23:	1142	case SIMPLE_UNDEF:
714	#if CBOR_SLOW	1143	#if CBOR_SLOW
715	types_error = get_bool ("Types::Serialiser::error");	1144	types_error = get_bool ("Types::Serialiser::error");
716	#endif	1145	#endif
717	return newSVsv (types_error);	1146	return newSVsv (types_error);
718		1147
719	case 25:	1148	case MISC_FLOAT16:
720	{	1149	{
721	WANT (2);	1150	WANT (2);
722		1151
723	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1152	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
724	dec->cur += 2;	1153	dec->cur += 2;
725		1154
726	return newSVnv (ecb_binary16_to_float (fp));	1155	return newSVnv (ecb_binary16_to_float (fp));
727	}	1156	}
728		1157
729	case 26:	1158	case MISC_FLOAT32:
730	{	1159	{
731	uint32_t fp;	1160	uint32_t fp;
732	WANT (4);	1161	WANT (4);
733	memcpy (&fp, dec->cur, 4);	1162	memcpy (&fp, dec->cur, 4);
734	dec->cur += 4;	1163	dec->cur += 4;
…		…
737	fp = ecb_bswap32 (fp);	1166	fp = ecb_bswap32 (fp);
738		1167
739	return newSVnv (ecb_binary32_to_float (fp));	1168	return newSVnv (ecb_binary32_to_float (fp));
740	}	1169	}
741		1170
742	case 27:	1171	case MISC_FLOAT64:
743	{	1172	{
744	uint64_t fp;	1173	uint64_t fp;
745	WANT (8);	1174	WANT (8);
746	memcpy (&fp, dec->cur, 8);	1175	memcpy (&fp, dec->cur, 8);
747	dec->cur += 8;	1176	dec->cur += 8;
…		…
750	fp = ecb_bswap64 (fp);	1179	fp = ecb_bswap64 (fp);
751		1180
752	return newSVnv (ecb_binary64_to_double (fp));	1181	return newSVnv (ecb_binary64_to_double (fp));
753	}	1182	}
754		1183
755	// 0..19 unassigned	1184	// 0..19 unassigned simple
756	// 24 reserved + unassigned (reserved values are not encodable)	1185	// 24 reserved + unassigned simple (reserved values are not encodable)
		1186	// 28-30 unassigned misc
		1187	// 31 break code
757	default:	1188	default:
758	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1189	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
759	}	1190	}
760		1191
761	break;	1192	break;
762	}	1193	}
763		1194
…		…
766	}	1197	}
767		1198
768	static SV *	1199	static SV *
769	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1200	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
770	{	1201	{
771	dec_t dec;	1202	dec_t dec = { 0 };
772	SV *sv;	1203	SV *sv;
		1204	STRLEN len;
		1205	char *data = SvPVbyte (string, len);
773		1206
774	/* work around bugs in 5.10 where manipulating magic values
775	* makes perl ignore the magic in subsequent accesses.
776	* also make a copy of non-PV values, to get them into a clean
777	* state (SvPV should do that, but it's buggy, see below).
778	*/
779	/*SvGETMAGIC (string);*/
780	if (SvMAGICAL (string) || !SvPOK (string))
781	string = sv_2mortal (newSVsv (string));
782
783	SvUPGRADE (string, SVt_PV);
784
785	/* work around a bug in perl 5.10, which causes SvCUR to fail an
786	* assertion with -DDEBUGGING, although SvCUR is documented to
787	* return the xpv_cur field which certainly exists after upgrading.
788	* according to nicholas clark, calling SvPOK fixes this.
789	* But it doesn't fix it, so try another workaround, call SvPV_nolen
790	* and hope for the best.
791	* Damnit, SvPV_nolen still trips over yet another assertion. This
792	* assertion business is seriously broken, try yet another workaround
793	* for the broken -DDEBUGGING.
794	*/
795	{
796	#ifdef DEBUGGING
797	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
798	#else
799	STRLEN offset = SvCUR (string);
800	#endif
801
802	if (offset > cbor->max_size && cbor->max_size)	1207	if (len > cbor->max_size && cbor->max_size)
803	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",	1208	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
804	(unsigned long)SvCUR (string), (unsigned long)cbor->max_size);	1209	(unsigned long)len, (unsigned long)cbor->max_size);
805	}
806
807	sv_utf8_downgrade (string, 0);
808		1210
809	dec.cbor = *cbor;	1211	dec.cbor = *cbor;
810	dec.cur = (U8 *)SvPVX (string);	1212	dec.cur = (U8 *)data;
811	dec.end = (U8 *)SvEND (string);	1213	dec.end = (U8 *)data + len;
812	dec.err = 0;
813	dec.depth = 0;
814		1214
815	sv = decode_sv (&dec);	1215	sv = decode_sv (&dec);
816		1216
817	if (offset_return)	1217	if (offset_return)
818	*offset_return = dec.cur;	1218	*offset_return = dec.cur;
…		…
821	if (dec.cur != dec.end && !dec.err)	1221	if (dec.cur != dec.end && !dec.err)
822	dec.err = "garbage after CBOR object";	1222	dec.err = "garbage after CBOR object";
823		1223
824	if (dec.err)	1224	if (dec.err)
825	{	1225	{
		1226	if (dec.shareable)
		1227	{
		1228	// need to break cyclic links, which whould all be in shareable
		1229	int i;
		1230	SV **svp;
		1231
		1232	for (i = av_len (dec.shareable) + 1; i--; )
		1233	if ((svp = av_fetch (dec.shareable, i, 0)))
		1234	sv_setsv (*svp, &PL_sv_undef);
		1235	}
		1236
826	SvREFCNT_dec (sv);	1237	SvREFCNT_dec (sv);
827	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur);	1238	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
828	}	1239	}
829		1240
830	sv = sv_2mortal (sv);	1241	sv = sv_2mortal (sv);
831		1242
832	return sv;	1243	return sv;
833	}	1244	}
834		1245
		1246	/////////////////////////////////////////////////////////////////////////////
		1247	// incremental parser
		1248
		1249	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1250
		1251	// returns 0 for notyet, 1 for success or error
		1252	static int
		1253	incr_parse (CBOR *self, SV *cborstr)
		1254	{
		1255	STRLEN cur;
		1256	SvPV (cborstr, cur);
		1257
		1258	while (ecb_expect_true (self->incr_need <= cur))
		1259	{
		1260	// table of integer count bytes
		1261	static I8 incr_len[MINOR_MASK + 1] = {
		1262	0, 0, 0, 0, 0, 0, 0, 0,
		1263	0, 0, 0, 0, 0, 0, 0, 0,
		1264	0, 0, 0, 0, 0, 0, 0, 0,
		1265	1, 2, 4, 8,-1,-1,-1,-2
		1266	};
		1267
		1268	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1269	U8 m = *p & MINOR_MASK;
		1270	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1271	I8 ilen = incr_len[m];
		1272
		1273	self->incr_need = self->incr_pos + 1;
		1274
		1275	if (ecb_expect_false (ilen < 0))
		1276	{
		1277	if (m != MINOR_INDEF)
		1278	return 1; // error
		1279
		1280	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1281	{
		1282	if (count >= 0)
		1283	return 1; // error
		1284
		1285	count = 1;
		1286	}
		1287	else
		1288	{
		1289	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1290	count = -1;
		1291	}
		1292	}
		1293	else
		1294	{
		1295	self->incr_need += ilen;
		1296	if (ecb_expect_false (self->incr_need > cur))
		1297	return 0;
		1298
		1299	int major = *p >> MAJOR_SHIFT;
		1300
		1301	switch (major)
		1302	{
		1303	case MAJOR_TAG >> MAJOR_SHIFT:
		1304	++count; // tags merely prefix another value
		1305	break;
		1306
		1307	case MAJOR_BYTES >> MAJOR_SHIFT:
		1308	case MAJOR_TEXT >> MAJOR_SHIFT:
		1309	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1310	case MAJOR_MAP >> MAJOR_SHIFT:
		1311	{
		1312	UV len;
		1313
		1314	if (ecb_expect_false (ilen))
		1315	{
		1316	len = 0;
		1317
		1318	do {
		1319	len = (len << 8) | *++p;
		1320	} while (--ilen);
		1321	}
		1322	else
		1323	len = m;
		1324
		1325	switch (major)
		1326	{
		1327	case MAJOR_BYTES >> MAJOR_SHIFT:
		1328	case MAJOR_TEXT >> MAJOR_SHIFT:
		1329	self->incr_need += len;
		1330	if (ecb_expect_false (self->incr_need > cur))
		1331	return 0;
		1332
		1333	break;
		1334
		1335	case MAJOR_MAP >> MAJOR_SHIFT:
		1336	len <<= 1;
		1337	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1338	if (len)
		1339	{
		1340	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1341	count = len + 1;
		1342	}
		1343	break;
		1344	}
		1345	}
		1346	}
		1347	}
		1348
		1349	self->incr_pos = self->incr_need;
		1350
		1351	if (count > 0)
		1352	{
		1353	while (!--count)
		1354	{
		1355	if (!AvFILLp (self->incr_count))
		1356	return 1; // done
		1357
		1358	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1359	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1360	}
		1361
		1362	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1363	}
		1364	}
		1365
		1366	return 0;
		1367	}
		1368
		1369
835	/////////////////////////////////////////////////////////////////////////////	1370	/////////////////////////////////////////////////////////////////////////////
836	// XS interface functions	1371	// XS interface functions
837		1372
838	MODULE = CBOR::XS PACKAGE = CBOR::XS	1373	MODULE = CBOR::XS PACKAGE = CBOR::XS
839		1374
…		…
846	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);	1381	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);
847		1382
848	types_true = get_bool ("Types::Serialiser::true" );	1383	types_true = get_bool ("Types::Serialiser::true" );
849	types_false = get_bool ("Types::Serialiser::false");	1384	types_false = get_bool ("Types::Serialiser::false");
850	types_error = get_bool ("Types::Serialiser::error");	1385	types_error = get_bool ("Types::Serialiser::error");
		1386
		1387	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1388
		1389	sv_cbor = newSVpv ("CBOR", 0);
		1390	SvREADONLY_on (sv_cbor);
851	}	1391	}
852		1392
853	PROTOTYPES: DISABLE	1393	PROTOTYPES: DISABLE
854		1394
855	void CLONE (...)	1395	void CLONE (...)
…		…
873		1413
874	void shrink (CBOR *self, int enable = 1)	1414	void shrink (CBOR *self, int enable = 1)
875	ALIAS:	1415	ALIAS:
876	shrink = F_SHRINK	1416	shrink = F_SHRINK
877	allow_unknown = F_ALLOW_UNKNOWN	1417	allow_unknown = F_ALLOW_UNKNOWN
		1418	allow_sharing = F_ALLOW_SHARING
		1419	allow_cycles = F_ALLOW_CYCLES
		1420	pack_strings = F_PACK_STRINGS
		1421	utf8_strings = F_UTF8_STRINGS
		1422	validate_utf8 = F_VALIDATE_UTF8
878	PPCODE:	1423	PPCODE:
879	{	1424	{
880	if (enable)	1425	if (enable)
881	self->flags |= ix;	1426	self->flags |= ix;
882	else	1427	else
…		…
887		1432
888	void get_shrink (CBOR *self)	1433	void get_shrink (CBOR *self)
889	ALIAS:	1434	ALIAS:
890	get_shrink = F_SHRINK	1435	get_shrink = F_SHRINK
891	get_allow_unknown = F_ALLOW_UNKNOWN	1436	get_allow_unknown = F_ALLOW_UNKNOWN
		1437	get_allow_sharing = F_ALLOW_SHARING
		1438	get_allow_cycles = F_ALLOW_CYCLES
		1439	get_pack_strings = F_PACK_STRINGS
		1440	get_validate_utf8 = F_VALIDATE_UTF8
892	PPCODE:	1441	PPCODE:
893	XPUSHs (boolSV (self->flags & ix));	1442	XPUSHs (boolSV (self->flags & ix));
894		1443
895	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1444	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
896	PPCODE:	1445	PPCODE:
…		…
912	CODE:	1461	CODE:
913	RETVAL = self->max_size;	1462	RETVAL = self->max_size;
914	OUTPUT:	1463	OUTPUT:
915	RETVAL	1464	RETVAL
916		1465
917	#if 0 //TODO	1466	void filter (CBOR *self, SV *filter = 0)
918
919	void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef)
920	PPCODE:	1467	PPCODE:
921	{
922	SvREFCNT_dec (self->cb_object);	1468	SvREFCNT_dec (self->filter);
923	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;	1469	self->filter = filter ? newSVsv (filter) : filter;
924
925	XPUSHs (ST (0));	1470	XPUSHs (ST (0));
926	}
927		1471
928	void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef)	1472	SV *get_filter (CBOR *self)
929	PPCODE:	1473	CODE:
930	{	1474	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
931	if (!self->cb_sk_object)	1475	OUTPUT:
932	self->cb_sk_object = newHV ();	1476	RETVAL
933
934	if (SvOK (cb))
935	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
936	else
937	{
938	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
939
940	if (!HvKEYS (self->cb_sk_object))
941	{
942	SvREFCNT_dec (self->cb_sk_object);
943	self->cb_sk_object = 0;
944	}
945	}
946
947	XPUSHs (ST (0));
948	}
949
950	#endif
951		1477
952	void encode (CBOR *self, SV *scalar)	1478	void encode (CBOR *self, SV *scalar)
953	PPCODE:	1479	PPCODE:
954	PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN;	1480	PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN;
955	XPUSHs (scalar);	1481	XPUSHs (scalar);
…		…
968	EXTEND (SP, 2);	1494	EXTEND (SP, 2);
969	PUSHs (sv);	1495	PUSHs (sv);
970	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1496	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
971	}	1497	}
972		1498
973	#if 0	1499	void incr_parse (CBOR *self, SV *cborstr)
		1500	ALIAS:
		1501	incr_parse_multiple = 1
		1502	PPCODE:
		1503	{
		1504	if (SvUTF8 (cborstr))
		1505	sv_utf8_downgrade (cborstr, 0);
		1506
		1507	if (!self->incr_count)
		1508	{
		1509	self->incr_count = newAV ();
		1510	self->incr_pos = 0;
		1511	self->incr_need = 1;
		1512
		1513	av_push (self->incr_count, newSViv (1));
		1514	}
		1515
		1516	do
		1517	{
		1518	if (!incr_parse (self, cborstr))
		1519	{
		1520	if (self->incr_need > self->max_size && self->max_size)
		1521	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1522	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1523
		1524	break;
		1525	}
		1526
		1527	SV *sv;
		1528	char *offset;
		1529
		1530	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1531	XPUSHs (sv);
		1532
		1533	sv_chop (cborstr, offset);
		1534
		1535	av_clear (self->incr_count);
		1536	av_push (self->incr_count, newSViv (1));
		1537
		1538	self->incr_pos = 0;
		1539	self->incr_need = self->incr_pos + 1;
		1540	}
		1541	while (ix);
		1542	}
		1543
		1544	void incr_reset (CBOR *self)
		1545	CODE:
		1546	{
		1547	SvREFCNT_dec (self->incr_count);
		1548	self->incr_count = 0;
		1549	}
974		1550
975	void DESTROY (CBOR *self)	1551	void DESTROY (CBOR *self)
976	CODE:	1552	PPCODE:
977	SvREFCNT_dec (self->cb_sk_object);	1553	cbor_free (self);
978	SvREFCNT_dec (self->cb_object);
979
980	#endif
981		1554
982	PROTOTYPES: ENABLE	1555	PROTOTYPES: ENABLE
983		1556
984	void encode_cbor (SV *scalar)	1557	void encode_cbor (SV *scalar)
		1558	ALIAS:
		1559	encode_cbor = 0
		1560	encode_cbor_sharing = F_ALLOW_SHARING
985	PPCODE:	1561	PPCODE:
986	{	1562	{
987	CBOR cbor;	1563	CBOR cbor;
988	cbor_init (&cbor);	1564	cbor_init (&cbor);
		1565	cbor.flags |= ix;
989	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1566	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
990	XPUSHs (scalar);	1567	XPUSHs (scalar);
991	}	1568	}
992		1569
993	void decode_cbor (SV *cborstr)	1570	void decode_cbor (SV *cborstr)

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines