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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.20 by root, Wed Nov 20 11:06:42 2013 UTC vs.
Revision 1.62 by root, Sat Nov 26 02:11:52 2016 UTC

…		…
6	#include <string.h>	6	#include <string.h>
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	#include <inttypes.h>
11		12
		13	#define ECB_NO_THREADS 1
12	#include "ecb.h"	14	#include "ecb.h"
13		15
14	// compatibility with perl <5.18	16	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	17	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	18	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	21	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	22	#endif
21	#ifndef HvNAMEUTF8	23	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	24	# define HvNAMEUTF8(hv) 0
23	#endif	25	#endif
		26	#ifndef SvREFCNT_dec_NN
		27	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		28	#endif
		29
		30	// known major and minor types
		31	enum cbor_type
		32	{
		33	MAJOR_SHIFT = 5,
		34	MINOR_MASK = 0x1f,
		35
		36	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		37	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		38	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		39	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		40	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		41	MAJOR_MAP = 5 << MAJOR_SHIFT,
		42	MAJOR_TAG = 6 << MAJOR_SHIFT,
		43	MAJOR_MISC = 7 << MAJOR_SHIFT,
		44
		45	// INT/STRING/ARRAY/MAP subtypes
		46	LENGTH_EXT1 = 24,
		47	LENGTH_EXT2 = 25,
		48	LENGTH_EXT4 = 26,
		49	LENGTH_EXT8 = 27,
		50
		51	// SIMPLE types (effectively MISC subtypes)
		52	SIMPLE_FALSE = 20,
		53	SIMPLE_TRUE = 21,
		54	SIMPLE_NULL = 22,
		55	SIMPLE_UNDEF = 23,
		56
		57	// MISC subtype (unused)
		58	MISC_EXT1 = 24,
		59	MISC_FLOAT16 = 25,
		60	MISC_FLOAT32 = 26,
		61	MISC_FLOAT64 = 27,
		62
		63	// BYTES/TEXT/ARRAY/MAP
		64	MINOR_INDEF = 31,
		65	};
24		66
25	// known tags	67	// known tags
26	enum cbor_tag	68	enum cbor_tag
27	{	69	{
28	// inofficial extensions (pending iana registration)	70	// extensions
		71	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	72	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	73	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	74	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	75	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	76	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref
34	CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref
35	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection	77	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		78
37	// rfc7049	79	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	80	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	81	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	82	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	83	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	84	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	85	CBOR_TAG_BIGFLOAT = 5, // array
44		86
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	87	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	88	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	89	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	90	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		91
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	92	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	93	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	94	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	95	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	96	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		97
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	98	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	99	};
58		100
59	#define F_SHRINK 0x00000001UL	101	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	102	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	103	#define F_ALLOW_SHARING 0x00000004UL
		104	#define F_ALLOW_CYCLES 0x00000008UL
		105	#define F_FORBID_OBJECTS 0x00000010UL
62	#define F_DEDUP_STRINGS 0x00000008UL //TODO	106	#define F_PACK_STRINGS 0x00000020UL
63	#define F_DEDUP_KEYS 0x00000010UL //TODO	107	#define F_TEXT_KEYS 0x00000040UL
		108	#define F_TEXT_STRINGS 0x00000080UL
		109	#define F_VALIDATE_UTF8 0x00000100UL
64		110
65	#define INIT_SIZE 32 // initial scalar size to be allocated	111	#define INIT_SIZE 32 // initial scalar size to be allocated
66		112
67	#define SB do {	113	#define SB do {
68	#define SE } while (0)	114	#define SE } while (0)
…		…
80	# define CBOR_SLOW 0	126	# define CBOR_SLOW 0
81	# define CBOR_STASH cbor_stash	127	# define CBOR_STASH cbor_stash
82	#endif	128	#endif
83		129
84	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::	130	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::
85	static SV *types_true, *types_false, *types_error, *sv_cbor;	131	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
86		132
87	typedef struct {	133	typedef struct {
88	U32 flags;	134	U32 flags;
89	U32 max_depth;	135	U32 max_depth;
90	STRLEN max_size;	136	STRLEN max_size;
		137	SV *filter;
		138
		139	// for the incremental parser
		140	STRLEN incr_pos; // the current offset into the text
		141	STRLEN incr_need; // minimum bytes needed to decode
		142	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
91	} CBOR;	143	} CBOR;
92		144
93	ecb_inline void	145	ecb_inline void
94	cbor_init (CBOR *cbor)	146	cbor_init (CBOR *cbor)
95	{	147	{
96	Zero (cbor, 1, CBOR);	148	Zero (cbor, 1, CBOR);
97	cbor->max_depth = 512;	149	cbor->max_depth = 512;
		150	}
		151
		152	ecb_inline void
		153	cbor_free (CBOR *cbor)
		154	{
		155	SvREFCNT_dec (cbor->filter);
		156	SvREFCNT_dec (cbor->incr_count);
98	}	157	}
99		158
100	/////////////////////////////////////////////////////////////////////////////	159	/////////////////////////////////////////////////////////////////////////////
101	// utility functions	160	// utility functions
102		161
…		…
122	SvPV_shrink_to_cur (sv);	181	SvPV_shrink_to_cur (sv);
123	#elif defined (SvPV_renew)	182	#elif defined (SvPV_renew)
124	SvPV_renew (sv, SvCUR (sv) + 1);	183	SvPV_renew (sv, SvCUR (sv) + 1);
125	#endif	184	#endif
126	}	185	}
		186	}
		187
		188	// minimum length of a string to be registered for stringref
		189	ecb_inline int
		190	minimum_string_length (UV idx)
		191	{
		192	return idx <= 23 ? 3
		193	: idx <= 0xffU ? 4
		194	: idx <= 0xffffU ? 5
		195	: idx <= 0xffffffffU ? 7
		196	: 11;
127	}	197	}
128		198
129	/////////////////////////////////////////////////////////////////////////////	199	/////////////////////////////////////////////////////////////////////////////
130	// encoder	200	// encoder
131		201
…		…
144	} enc_t;	214	} enc_t;
145		215
146	ecb_inline void	216	ecb_inline void
147	need (enc_t *enc, STRLEN len)	217	need (enc_t *enc, STRLEN len)
148	{	218	{
149	if (ecb_expect_false (enc->cur + len >= enc->end))	219	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
150	{	220	{
151	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	221	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
152	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	222	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
153	enc->cur = SvPVX (enc->sv) + cur;	223	enc->cur = SvPVX (enc->sv) + cur;
154	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	224	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
165	static void	235	static void
166	encode_uint (enc_t *enc, int major, UV len)	236	encode_uint (enc_t *enc, int major, UV len)
167	{	237	{
168	need (enc, 9);	238	need (enc, 9);
169		239
170	if (len < 24)	240	if (ecb_expect_true (len < LENGTH_EXT1))
171	*enc->cur++ = major | len;	241	*enc->cur++ = major | len;
172	else if (len <= 0xff)	242	else if (ecb_expect_true (len <= 0xffU))
173	{	243	{
174	*enc->cur++ = major | 24;	244	*enc->cur++ = major | LENGTH_EXT1;
175	*enc->cur++ = len;	245	*enc->cur++ = len;
176	}	246	}
177	else if (len <= 0xffff)	247	else if (len <= 0xffffU)
178	{	248	{
179	*enc->cur++ = major | 25;	249	*enc->cur++ = major | LENGTH_EXT2;
180	*enc->cur++ = len >> 8;	250	*enc->cur++ = len >> 8;
181	*enc->cur++ = len;	251	*enc->cur++ = len;
182	}	252	}
183	else if (len <= 0xffffffff)	253	else if (len <= 0xffffffffU)
184	{	254	{
185	*enc->cur++ = major | 26;	255	*enc->cur++ = major | LENGTH_EXT4;
186	*enc->cur++ = len >> 24;	256	*enc->cur++ = len >> 24;
187	*enc->cur++ = len >> 16;	257	*enc->cur++ = len >> 16;
188	*enc->cur++ = len >> 8;	258	*enc->cur++ = len >> 8;
189	*enc->cur++ = len;	259	*enc->cur++ = len;
190	}	260	}
191	else	261	else
192	{	262	{
193	*enc->cur++ = major | 27;	263	*enc->cur++ = major | LENGTH_EXT8;
194	*enc->cur++ = len >> 56;	264	*enc->cur++ = len >> 56;
195	*enc->cur++ = len >> 48;	265	*enc->cur++ = len >> 48;
196	*enc->cur++ = len >> 40;	266	*enc->cur++ = len >> 40;
197	*enc->cur++ = len >> 32;	267	*enc->cur++ = len >> 32;
198	*enc->cur++ = len >> 24;	268	*enc->cur++ = len >> 24;
…		…
200	*enc->cur++ = len >> 8;	270	*enc->cur++ = len >> 8;
201	*enc->cur++ = len;	271	*enc->cur++ = len;
202	}	272	}
203	}	273	}
204		274
205	static void	275	ecb_inline void
		276	encode_tag (enc_t *enc, UV tag)
		277	{
		278	encode_uint (enc, MAJOR_TAG, tag);
		279	}
		280
		281	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		282	ecb_noinline static void
206	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	283	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
207	{	284	{
208	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	285	STRLEN ulen = len;
		286	U8 *p, *pend = (U8 *)str + len;
		287
		288	for (p = (U8 *)str; p < pend; ++p)
		289	ulen += *p >> 7; // count set high bits
		290
		291	encode_uint (enc, MAJOR_TEXT, ulen);
		292
		293	need (enc, ulen);
		294	for (p = (U8 *)str; p < pend; ++p)
		295	if (*p < 0x80)
		296	*enc->cur++ = *p;
		297	else
		298	{
		299	*enc->cur++ = 0xc0 + (*p >> 6);
		300	*enc->cur++ = 0x80 + (*p & 63);
		301	}
		302	}
		303
		304	ecb_inline void
		305	encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		306	{
		307	if (ecb_expect_false (upgrade_utf8))
		308	if (!utf8)
		309	{
		310	encode_str_utf8 (enc, utf8, str, len);
		311	return;
		312	}
		313
		314	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
209	need (enc, len);	315	need (enc, len);
210	memcpy (enc->cur, str, len);	316	memcpy (enc->cur, str, len);
211	enc->cur += len;	317	enc->cur += len;
212	}	318	}
213		319
214	ecb_inline void	320	ecb_inline void
215	encode_tag (enc_t *enc, UV tag)	321	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
216	{	322	{
217	encode_uint (enc, 0xc0, tag);	323	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
		324	{
		325	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
		326
		327	if (SvOK (*svp))
		328	{
		329	// already registered, use stringref
		330	encode_tag (enc, CBOR_TAG_STRINGREF);
		331	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		332	return;
		333	}
		334	else if (len >= minimum_string_length (enc->stringref_idx))
		335	{
		336	// register only
		337	sv_setuv (*svp, enc->stringref_idx);
		338	++enc->stringref_idx;
		339	}
		340	}
		341
		342	encode_str (enc, upgrade_utf8, utf8, str, len);
218	}	343	}
219		344
220	static void encode_sv (enc_t *enc, SV *sv);	345	static void encode_sv (enc_t *enc, SV *sv);
221		346
222	static void	347	static void
…		…
227	if (enc->depth >= enc->cbor.max_depth)	352	if (enc->depth >= enc->cbor.max_depth)
228	croak (ERR_NESTING_EXCEEDED);	353	croak (ERR_NESTING_EXCEEDED);
229		354
230	++enc->depth;	355	++enc->depth;
231		356
232	encode_uint (enc, 0x80, len + 1);	357	encode_uint (enc, MAJOR_ARRAY, len + 1);
233		358
		359	if (SvMAGICAL (av))
234	for (i = 0; i <= len; ++i)	360	for (i = 0; i <= len; ++i)
235	{	361	{
236	SV **svp = av_fetch (av, i, 0);	362	SV **svp = av_fetch (av, i, 0);
237	encode_sv (enc, svp ? *svp : &PL_sv_undef);	363	encode_sv (enc, svp ? *svp : &PL_sv_undef);
238	}	364	}
		365	else
		366	for (i = 0; i <= len; ++i)
		367	{
		368	SV *sv = AvARRAY (av)[i];
		369	encode_sv (enc, sv ? sv : &PL_sv_undef);
		370	}
239		371
240	--enc->depth;	372	--enc->depth;
241	}
242
243	ecb_inline void
244	encode_he (enc_t *enc, HE *he)
245	{
246	if (HeKLEN (he) == HEf_SVKEY)
247	encode_sv (enc, HeSVKEY (he));
248	else
249	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
250	}	373	}
251		374
252	static void	375	static void
253	encode_hv (enc_t *enc, HV *hv)	376	encode_hv (enc_t *enc, HV *hv)
254	{	377	{
…		…
261		384
262	int pairs = hv_iterinit (hv);	385	int pairs = hv_iterinit (hv);
263	int mg = SvMAGICAL (hv);	386	int mg = SvMAGICAL (hv);
264		387
265	if (mg)	388	if (mg)
266	encode_ch (enc, 0xa0 | 31);	389	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
267	else	390	else
268	encode_uint (enc, 0xa0, pairs);	391	encode_uint (enc, MAJOR_MAP, pairs);
269		392
270	while ((he = hv_iternext (hv)))	393	while ((he = hv_iternext (hv)))
271	{	394	{
272	if (ecb_expect_false (enc->cbor.flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS)))
273	{
274	SV **svp;
275
276	if (HeKLEN (he) == HEf_SVKEY)	395	if (HeKLEN (he) == HEf_SVKEY)
277	svp = hv_fetch_ent (enc->stringref[!! SvUTF8 (HeSVKEY (he))], HeSVKEY (he) , 1, 0);//TODO return HE :/	396	encode_sv (enc, HeSVKEY (he));
278	else
279	svp = hv_fetch (enc->stringref[!! HeKUTF8 (he) ], HeKEY (he), HeKLEN (he), 1);
280
281	if (SvOK (*svp))
282	{
283	encode_tag (enc, CBOR_TAG_STRINGREF);
284	encode_uint (enc, 0x00, SvUV (*svp));
285	}
286	else
287	{
288	sv_setuv (*svp, enc->stringref_idx);
289	++enc->stringref_idx;
290	encode_he (enc, he);
291	}
292	}
293	else	397	else
294	encode_he (enc, he);	398	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
295		399
296	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	400	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
297	}	401	}
298		402
299	if (mg)	403	if (mg)
300	encode_ch (enc, 0xe0 | 31);	404	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
301		405
302	--enc->depth;	406	--enc->depth;
303	}	407	}
304		408
305	// encode objects, arrays and special \0=false and \1=true values.	409	// encode objects, arrays and special \0=false and \1=true values.
306	static void	410	static void
307	encode_rv (enc_t *enc, SV *sv)	411	encode_rv (enc_t *enc, SV *sv)
308	{	412	{
309	SvGETMAGIC (sv);	413	SvGETMAGIC (sv);
310
311	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
312	&& ecb_expect_false (SvREFCNT (sv) > 1))
313	{
314	if (!enc->shareable)
315	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
316
317	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
318
319	if (SvOK (*svp))
320	{
321	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
322	encode_uint (enc, 0x00, SvUV (*svp));
323	return;
324	}
325	else
326	{
327	sv_setuv (*svp, enc->shareable_idx);
328	++enc->shareable_idx;
329	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
330	}
331	}
332		414
333	svtype svt = SvTYPE (sv);	415	svtype svt = SvTYPE (sv);
334		416
335	if (ecb_expect_false (SvOBJECT (sv)))	417	if (ecb_expect_false (SvOBJECT (sv)))
336	{	418	{
…		…
343	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	425	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
344	? cbor_tagged_stash	426	? cbor_tagged_stash
345	: gv_stashpv ("CBOR::XS::Tagged" , 1);	427	: gv_stashpv ("CBOR::XS::Tagged" , 1);
346		428
347	HV *stash = SvSTASH (sv);	429	HV *stash = SvSTASH (sv);
348	GV *method;
349		430
350	if (stash == boolean_stash)	431	if (stash == boolean_stash)
351	encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);	432	{
		433	encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE);
		434	return;
		435	}
352	else if (stash == error_stash)	436	else if (stash == error_stash)
353	encode_ch (enc, 0xe0 | 23);	437	{
		438	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		439	return;
		440	}
354	else if (stash == tagged_stash)	441	else if (stash == tagged_stash)
355	{	442	{
356	if (svt != SVt_PVAV)	443	if (svt != SVt_PVAV)
357	croak ("encountered CBOR::XS::Tagged object that isn't an array");	444	croak ("encountered CBOR::XS::Tagged object that isn't an array");
358		445
359	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	446	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
360	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));	447	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
		448
		449	return;
		450	}
		451	}
		452
		453	if (ecb_expect_false (SvREFCNT (sv) > 1)
		454	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		455	{
		456	if (!enc->shareable)
		457	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
		458
		459	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
		460
		461	if (SvOK (*svp))
361	}	462	{
		463	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		464	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		465	return;
		466	}
		467	else
		468	{
		469	sv_setuv (*svp, enc->shareable_idx);
		470	++enc->shareable_idx;
		471	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		472	}
		473	}
		474
		475	if (ecb_expect_false (SvOBJECT (sv)))
		476	{
		477	HV *stash = SvSTASH (sv);
		478	GV *method;
		479
		480	if (enc->cbor.flags & F_FORBID_OBJECTS)
		481	croak ("encountered object '%s', but forbid_objects is enabled",
		482	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
362	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	483	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
363	{	484	{
364	dSP;	485	dSP;
365		486
366	ENTER; SAVETMPS; PUSHMARK (SP);	487	ENTER; SAVETMPS;
		488	PUSHMARK (SP);
367	// we re-bless the reference to get overload and other niceties right	489	// we re-bless the reference to get overload and other niceties right
368	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	490	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
369		491
370	PUTBACK;	492	PUTBACK;
371	// G_SCALAR ensures that return value is 1	493	// G_SCALAR ensures that return value is 1
…		…
384	}	506	}
385	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	507	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
386	{	508	{
387	dSP;	509	dSP;
388		510
389	ENTER; SAVETMPS; PUSHMARK (SP);	511	ENTER; SAVETMPS;
		512	SAVESTACK_POS ();
		513	PUSHMARK (SP);
390	EXTEND (SP, 2);	514	EXTEND (SP, 2);
391	// we re-bless the reference to get overload and other niceties right	515	// we re-bless the reference to get overload and other niceties right
392	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	516	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
393	PUSHs (sv_cbor);	517	PUSHs (sv_cbor);
394		518
…		…
399	// catch this surprisingly common error	523	// catch this surprisingly common error
400	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	524	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
401	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	525	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
402		526
403	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	527	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
404	encode_uint (enc, 0x80, count + 1);	528	encode_uint (enc, MAJOR_ARRAY, count + 1);
405	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	529	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
406		530
407	while (count)	531	while (count)
408	encode_sv (enc, SP[1 - count--]);	532	encode_sv (enc, SP[1 - count--]);
409		533
410	PUTBACK;	534	PUTBACK;
…		…
431	{	555	{
432	double nv = SvNVX (sv);	556	double nv = SvNVX (sv);
433		557
434	need (enc, 9);	558	need (enc, 9);
435		559
436	if (ecb_expect_false (nv == (U32)nv))	560	if (ecb_expect_false (nv == (NV)(U32)nv))
437	encode_uint (enc, 0x00, (U32)nv);	561	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
438	//TODO: maybe I32?	562	//TODO: maybe I32?
439	else if (ecb_expect_false (nv == (float)nv))	563	else if (ecb_expect_false (nv == (float)nv))
440	{	564	{
441	uint32_t fp = ecb_float_to_binary32 (nv);	565	uint32_t fp = ecb_float_to_binary32 (nv);
442		566
443	*enc->cur++ = 0xe0 | 26;	567	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
444		568
445	if (!ecb_big_endian ())	569	if (!ecb_big_endian ())
446	fp = ecb_bswap32 (fp);	570	fp = ecb_bswap32 (fp);
447		571
448	memcpy (enc->cur, &fp, 4);	572	memcpy (enc->cur, &fp, 4);
…		…
450	}	574	}
451	else	575	else
452	{	576	{
453	uint64_t fp = ecb_double_to_binary64 (nv);	577	uint64_t fp = ecb_double_to_binary64 (nv);
454		578
455	*enc->cur++ = 0xe0 | 27;	579	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
456		580
457	if (!ecb_big_endian ())	581	if (!ecb_big_endian ())
458	fp = ecb_bswap64 (fp);	582	fp = ecb_bswap64 (fp);
459		583
460	memcpy (enc->cur, &fp, 8);	584	memcpy (enc->cur, &fp, 8);
…		…
469		593
470	if (SvPOKp (sv))	594	if (SvPOKp (sv))
471	{	595	{
472	STRLEN len;	596	STRLEN len;
473	char *str = SvPV (sv, len);	597	char *str = SvPV (sv, len);
474	encode_str (enc, SvUTF8 (sv), str, len);	598	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
475	}	599	}
476	else if (SvNOKp (sv))	600	else if (SvNOKp (sv))
477	encode_nv (enc, sv);	601	encode_nv (enc, sv);
478	else if (SvIOKp (sv))	602	else if (SvIOKp (sv))
479	{	603	{
480	if (SvIsUV (sv))	604	if (SvIsUV (sv))
481	encode_uint (enc, 0x00, SvUVX (sv));	605	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
482	else if (SvIVX (sv) >= 0)	606	else if (SvIVX (sv) >= 0)
483	encode_uint (enc, 0x00, SvIVX (sv));	607	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
484	else	608	else
485	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	609	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
486	}	610	}
487	else if (SvROK (sv))	611	else if (SvROK (sv))
488	encode_rv (enc, SvRV (sv));	612	encode_rv (enc, SvRV (sv));
489	else if (!SvOK (sv))	613	else if (!SvOK (sv))
490	encode_ch (enc, 0xe0 | 22);	614	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
491	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	615	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
492	encode_ch (enc, 0xe0 | 23);	616	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
493	else	617	else
494	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	618	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
495	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	619	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
496	}	620	}
497		621
498	static SV *	622	static SV *
499	encode_cbor (SV *scalar, CBOR *cbor)	623	encode_cbor (SV *scalar, CBOR *cbor)
500	{	624	{
501	enc_t enc = { };	625	enc_t enc = { 0 };
502		626
503	enc.cbor = *cbor;	627	enc.cbor = *cbor;
504	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	628	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
505	enc.cur = SvPVX (enc.sv);	629	enc.cur = SvPVX (enc.sv);
506	enc.end = SvEND (enc.sv);	630	enc.end = SvEND (enc.sv);
507		631
508	SvPOK_only (enc.sv);	632	SvPOK_only (enc.sv);
509		633
510	if (cbor->flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS))	634	if (cbor->flags & F_PACK_STRINGS)
511	{	635	{
512	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	636	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
513	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	637	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
514	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	638	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
515	}	639	}
…		…
537	CBOR cbor;	661	CBOR cbor;
538	U32 depth; // recursion depth	662	U32 depth; // recursion depth
539	U32 maxdepth; // recursion depth limit	663	U32 maxdepth; // recursion depth limit
540	AV *shareable;	664	AV *shareable;
541	AV *stringref;	665	AV *stringref;
		666	SV *decode_tagged;
		667	SV *err_sv; // optional sv for error, needs to be freed
542	} dec_t;	668	} dec_t;
543		669
544	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	670	// set dec->err to ERRSV
		671	ecb_cold static void
		672	err_errsv (dec_t *dec)
		673	{
		674	if (!dec->err)
		675	{
		676	dec->err_sv = newSVsv (ERRSV);
545		677
546	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	678	// chop off the trailing \n
		679	SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
		680	*SvEND (dec->err_sv) = 0;
547		681
		682	dec->err = SvPVutf8_nolen (dec->err_sv);
		683	}
		684	}
		685
		686	// the following functions are used to reduce code size and help the compiler to optimise
		687	ecb_cold static void
		688	err_set (dec_t *dec, const char *reason)
		689	{
		690	if (!dec->err)
		691	dec->err = reason;
		692	}
		693
		694	ecb_cold static void
		695	err_unexpected_end (dec_t *dec)
		696	{
		697	err_set (dec, "unexpected end of CBOR data");
		698	}
		699
		700	ecb_cold static void
		701	err_nesting_exceeded (dec_t *dec)
		702	{
		703	err_set (dec, ERR_NESTING_EXCEEDED);
		704	}
		705
		706	#define ERR_DO(do) SB do; goto fail; SE
		707	#define ERR(reason) ERR_DO (err_set (dec, reason))
		708	#define ERR_ERRSV ERR_DO (err_errsv (dec))
		709
		710	#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
		711
548	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	712	#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED)
549	#define DEC_DEC_DEPTH --dec->depth	713	#define DEC_DEC_DEPTH --dec->depth
550		714
551	static UV	715	static UV
552	decode_uint (dec_t *dec)	716	decode_uint (dec_t *dec)
553	{	717	{
554	switch (*dec->cur & 31)	718	U8 m = *dec->cur & MINOR_MASK;
555	{	719	++dec->cur;
556	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
557	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
558	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
559	return *dec->cur++ & 31;
560		720
561	case 24:	721	if (ecb_expect_true (m < LENGTH_EXT1))
		722	return m;
		723	else if (ecb_expect_true (m == LENGTH_EXT1))
		724	{
562	WANT (2);	725	WANT (1);
563	dec->cur += 2;	726	dec->cur += 1;
564	return dec->cur[-1];	727	return dec->cur[-1];
565		728	}
566	case 25:	729	else if (ecb_expect_true (m == LENGTH_EXT2))
		730	{
567	WANT (3);	731	WANT (2);
568	dec->cur += 3;	732	dec->cur += 2;
569	return (((UV)dec->cur[-2]) << 8)	733	return (((UV)dec->cur[-2]) << 8)
570	| ((UV)dec->cur[-1]);	734	| ((UV)dec->cur[-1]);
571		735	}
572	case 26:	736	else if (ecb_expect_true (m == LENGTH_EXT4))
		737	{
573	WANT (5);	738	WANT (4);
574	dec->cur += 5;	739	dec->cur += 4;
575	return (((UV)dec->cur[-4]) << 24)	740	return (((UV)dec->cur[-4]) << 24)
576	| (((UV)dec->cur[-3]) << 16)	741	| (((UV)dec->cur[-3]) << 16)
577	| (((UV)dec->cur[-2]) << 8)	742	| (((UV)dec->cur[-2]) << 8)
578	| ((UV)dec->cur[-1]);	743	| ((UV)dec->cur[-1]);
579		744	}
580	case 27:	745	else if (ecb_expect_true (m == LENGTH_EXT8))
		746	{
581	WANT (9);	747	WANT (8);
582	dec->cur += 9;	748	dec->cur += 8;
		749
		750	return
		751	#if UVSIZE < 8
		752	0
		753	#else
583	return (((UV)dec->cur[-8]) << 56)	754	(((UV)dec->cur[-8]) << 56)
584	| (((UV)dec->cur[-7]) << 48)	755	| (((UV)dec->cur[-7]) << 48)
585	| (((UV)dec->cur[-6]) << 40)	756	| (((UV)dec->cur[-6]) << 40)
586	| (((UV)dec->cur[-5]) << 32)	757	| (((UV)dec->cur[-5]) << 32)
		758	#endif
587	| (((UV)dec->cur[-4]) << 24)	759	| (((UV)dec->cur[-4]) << 24)
588	| (((UV)dec->cur[-3]) << 16)	760	| (((UV)dec->cur[-3]) << 16)
589	| (((UV)dec->cur[-2]) << 8)	761	| (((UV)dec->cur[-2]) << 8)
590	| ((UV)dec->cur[-1]);	762	| ((UV)dec->cur[-1]);
591		763	}
592	default:	764	else
593	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	765	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
594	}
595		766
596	fail:	767	fail:
597	return 0;	768	return 0;
598	}	769	}
599		770
…		…
604	{	775	{
605	AV *av = newAV ();	776	AV *av = newAV ();
606		777
607	DEC_INC_DEPTH;	778	DEC_INC_DEPTH;
608		779
609	if ((*dec->cur & 31) == 31)	780	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
610	{	781	{
611	++dec->cur;	782	++dec->cur;
612		783
613	for (;;)	784	for (;;)
614	{	785	{
615	WANT (1);	786	WANT (1);
616		787
617	if (*dec->cur == (0xe0 | 31))	788	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
618	{	789	{
619	++dec->cur;	790	++dec->cur;
620	break;	791	break;
621	}	792	}
622		793
623	av_push (av, decode_sv (dec));	794	av_push (av, decode_sv (dec));
624	}	795	}
625	}	796	}
626	else	797	else
627	{	798	{
628	int i, len = decode_uint (dec);	799	UV i, len = decode_uint (dec);
629		800
		801	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
630	av_fill (av, len - 1);	802	av_fill (av, len - 1);
631		803
632	for (i = 0; i < len; ++i)	804	for (i = 0; i < len; ++i)
633	AvARRAY (av)[i] = decode_sv (dec);	805	AvARRAY (av)[i] = decode_sv (dec);
634	}	806	}
…		…
644		816
645	static void	817	static void
646	decode_he (dec_t *dec, HV *hv)	818	decode_he (dec_t *dec, HV *hv)
647	{	819	{
648	// for speed reasons, we specialcase single-string	820	// for speed reasons, we specialcase single-string
649	// byte or utf-8 strings as keys.	821	// byte or utf-8 strings as keys, but only when !stringref
650		822
651	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	823	if (ecb_expect_true (!dec->stringref))
		824	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
652	{	825	{
653	I32 len = decode_uint (dec);	826	STRLEN len = decode_uint (dec);
654	char *key = (char *)dec->cur;	827	char *key = (char *)dec->cur;
655		828
		829	WANT (len);
656	dec->cur += len;	830	dec->cur += len;
657		831
658	if (ecb_expect_false (dec->stringref))
659	av_push (dec->stringref, newSVpvn (key, len));
660
661	hv_store (hv, key, len, decode_sv (dec), 0);	832	hv_store (hv, key, len, decode_sv (dec), 0);
		833
		834	return;
662	}	835	}
663	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	836	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
664	{	837	{
665	I32 len = decode_uint (dec);	838	STRLEN len = decode_uint (dec);
666	char *key = (char *)dec->cur;	839	char *key = (char *)dec->cur;
667		840
		841	WANT (len);
668	dec->cur += len;	842	dec->cur += len;
669		843
670	if (ecb_expect_false (dec->stringref))	844	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
671	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	845	if (!is_utf8_string (key, len))
		846	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
672		847
673	hv_store (hv, key, -len, decode_sv (dec), 0);	848	hv_store (hv, key, -len, decode_sv (dec), 0);
		849
		850	return;
674	}	851	}
675	else	852
676	{
677	SV *k = decode_sv (dec);	853	SV *k = decode_sv (dec);
678	SV *v = decode_sv (dec);	854	SV *v = decode_sv (dec);
679		855
		856	// we leak memory if uncaught exceptions are thrown by random magical
		857	// methods, and this is hopefully the only place where it can happen,
		858	// so if there is a chance of an exception, take the very slow path.
		859	// since catching exceptions is "undocumented/internal/forbidden" by
		860	// the new p5p powers, we need to call out to a perl function :/
		861	if (ecb_expect_false (SvAMAGIC (k)))
		862	{
		863	dSP;
		864
		865	ENTER; SAVETMPS;
		866	PUSHMARK (SP);
		867	EXTEND (SP, 3);
		868	PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
		869	PUSHs (sv_2mortal (k));
		870	PUSHs (sv_2mortal (v));
		871
		872	PUTBACK;
		873	call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
		874	SPAGAIN;
		875
		876	FREETMPS; LEAVE;
		877
		878	if (SvTRUE (ERRSV))
		879	ERR_ERRSV;
		880
		881	return;
		882	}
		883
680	hv_store_ent (hv, k, v, 0);	884	hv_store_ent (hv, k, v, 0);
681	SvREFCNT_dec (k);	885	SvREFCNT_dec (k);
682	}	886
		887	fail:
		888	;
683	}	889	}
684		890
685	static SV *	891	static SV *
686	decode_hv (dec_t *dec)	892	decode_hv (dec_t *dec)
687	{	893	{
688	HV *hv = newHV ();	894	HV *hv = newHV ();
689		895
690	DEC_INC_DEPTH;	896	DEC_INC_DEPTH;
691		897
692	if ((*dec->cur & 31) == 31)	898	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
693	{	899	{
694	++dec->cur;	900	++dec->cur;
695		901
696	for (;;)	902	for (;;)
697	{	903	{
698	WANT (1);	904	WANT (1);
699		905
700	if (*dec->cur == (0xe0 | 31))	906	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
701	{	907	{
702	++dec->cur;	908	++dec->cur;
703	break;	909	break;
704	}	910	}
705		911
706	decode_he (dec, hv);	912	decode_he (dec, hv);
707	}	913	}
708	}	914	}
709	else	915	else
710	{	916	{
711	int pairs = decode_uint (dec);	917	UV pairs = decode_uint (dec);
		918
		919	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
712		920
713	while (pairs--)	921	while (pairs--)
714	decode_he (dec, hv);	922	decode_he (dec, hv);
715	}	923	}
716		924
…		…
726	static SV *	934	static SV *
727	decode_str (dec_t *dec, int utf8)	935	decode_str (dec_t *dec, int utf8)
728	{	936	{
729	SV *sv = 0;	937	SV *sv = 0;
730		938
731	if ((*dec->cur & 31) == 31)	939	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
732	{	940	{
		941	// indefinite length strings
733	++dec->cur;	942	++dec->cur;
734		943
		944	U8 major = *dec->cur & MAJOR_MISC;
		945
735	sv = newSVpvn ("", 0);	946	sv = newSVpvn ("", 0);
736		947
737	// not very fast, and certainly not robust against illegal input
738	for (;;)	948	for (;;)
739	{	949	{
740	WANT (1);	950	WANT (1);
741		951
742	if (*dec->cur == (0xe0 | 31))	952	if ((*dec->cur - major) > LENGTH_EXT8)
		953	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
743	{	954	{
744	++dec->cur;	955	++dec->cur;
745	break;	956	break;
746	}	957	}
		958	else
		959	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
747		960
748	sv_catsv (sv, decode_sv (dec));	961	STRLEN len = decode_uint (dec);
		962
		963	WANT (len);
		964	sv_catpvn (sv, dec->cur, len);
		965	dec->cur += len;
749	}	966	}
750	}	967	}
751	else	968	else
752	{	969	{
753	STRLEN len = decode_uint (dec);	970	STRLEN len = decode_uint (dec);
754		971
755	WANT (len);	972	WANT (len);
756	sv = newSVpvn (dec->cur, len);	973	sv = newSVpvn (dec->cur, len);
757	dec->cur += len;	974	dec->cur += len;
		975
		976	if (ecb_expect_false (dec->stringref)
		977	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		978	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
758	}	979	}
759		980
760	if (utf8)	981	if (utf8)
		982	{
		983	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		984	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		985	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		986
761	SvUTF8_on (sv);	987	SvUTF8_on (sv);
762		988	}
763	if (ecb_expect_false (dec->stringref))
764	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
765		989
766	return sv;	990	return sv;
767		991
768	fail:	992	fail:
769	SvREFCNT_dec (sv);	993	SvREFCNT_dec (sv);
…		…
788	sv = newRV_noinc (decode_sv (dec));	1012	sv = newRV_noinc (decode_sv (dec));
789	break;	1013	break;
790		1014
791	case CBOR_TAG_STRINGREF_NAMESPACE:	1015	case CBOR_TAG_STRINGREF_NAMESPACE:
792	{	1016	{
		1017	// do nmot use SAVETMPS/FREETMPS, as these will
		1018	// erase mortalised caches, e.g. "shareable"
793	ENTER; SAVETMPS;	1019	ENTER;
794		1020
795	SAVESPTR (dec->stringref);	1021	SAVESPTR (dec->stringref);
796	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1022	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
797		1023
798	sv = decode_sv (dec);	1024	sv = decode_sv (dec);
799		1025
800	FREETMPS; LEAVE;	1026	LEAVE;
801	}	1027	}
802	break;	1028	break;
803		1029
804	case CBOR_TAG_STRINGREF:	1030	case CBOR_TAG_STRINGREF:
805	{	1031	{
806	if ((*dec->cur >> 5) != 0)	1032	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
807	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1033	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
808		1034
809	UV idx = decode_uint (dec);	1035	UV idx = decode_uint (dec);
810		1036
811	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1037	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))
…		…
818	case CBOR_TAG_VALUE_SHAREABLE:	1044	case CBOR_TAG_VALUE_SHAREABLE:
819	{	1045	{
820	if (ecb_expect_false (!dec->shareable))	1046	if (ecb_expect_false (!dec->shareable))
821	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1047	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
822		1048
		1049	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1050	{
823	sv = newSV (0);	1051	sv = newSV (0);
824	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1052	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
825		1053
826	SV *osv = decode_sv (dec);	1054	SV *osv = decode_sv (dec);
827	sv_setsv (sv, osv);	1055	sv_setsv (sv, osv);
828	SvREFCNT_dec_NN (osv);	1056	SvREFCNT_dec_NN (osv);
		1057	}
		1058	else
		1059	{
		1060	av_push (dec->shareable, &PL_sv_undef);
		1061	int idx = AvFILLp (dec->shareable);
		1062	sv = decode_sv (dec);
		1063	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1064	}
829	}	1065	}
830	break;	1066	break;
831		1067
832	case CBOR_TAG_VALUE_SHAREDREF:	1068	case CBOR_TAG_VALUE_SHAREDREF:
833	{	1069	{
834	if ((*dec->cur >> 5) != 0)	1070	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
835	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1071	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
836		1072
837	UV idx = decode_uint (dec);	1073	UV idx = decode_uint (dec);
838		1074
839	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1075	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))
840	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1076	ERR ("corrupted CBOR data (sharedref index out of bounds)");
841		1077
842	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1078	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1079
		1080	if (sv == &PL_sv_undef)
		1081	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
843	}	1082	}
844	break;	1083	break;
845		1084
846	case CBOR_TAG_PERL_OBJECT:	1085	case CBOR_TAG_PERL_OBJECT:
847	{	1086	{
		1087	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1088	goto filter;
		1089
848	sv = decode_sv (dec);	1090	sv = decode_sv (dec);
849		1091
850	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1092	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
851	ERR ("corrupted CBOR data (non-array perl object)");	1093	ERR ("corrupted CBOR data (non-array perl object)");
852		1094
…		…
862	if (!method)	1104	if (!method)
863	ERR ("cannot decode perl-object (package does not have a THAW method)");	1105	ERR ("cannot decode perl-object (package does not have a THAW method)");
864		1106
865	dSP;	1107	dSP;
866		1108
867	ENTER; SAVETMPS; PUSHMARK (SP);	1109	ENTER; SAVETMPS;
		1110	PUSHMARK (SP);
868	EXTEND (SP, len + 1);	1111	EXTEND (SP, len + 1);
869	// we re-bless the reference to get overload and other niceties right	1112	// we re-bless the reference to get overload and other niceties right
870	PUSHs (*av_fetch (av, 0, 1));	1113	PUSHs (*av_fetch (av, 0, 1));
871	PUSHs (sv_cbor);	1114	PUSHs (sv_cbor);
872		1115
…		…
880	SPAGAIN;	1123	SPAGAIN;
881		1124
882	if (SvTRUE (ERRSV))	1125	if (SvTRUE (ERRSV))
883	{	1126	{
884	FREETMPS; LEAVE;	1127	FREETMPS; LEAVE;
885	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1128	ERR_ERRSV;
886	}	1129	}
887		1130
888	SvREFCNT_dec (sv);	1131	SvREFCNT_dec (sv);
889	sv = SvREFCNT_inc (POPs);	1132	sv = SvREFCNT_inc (POPs);
890		1133
…		…
893	FREETMPS; LEAVE;	1136	FREETMPS; LEAVE;
894	}	1137	}
895	break;	1138	break;
896		1139
897	default:	1140	default:
		1141	filter:
898	{	1142	{
		1143	SV *tag_sv = newSVuv (tag);
		1144
899	sv = decode_sv (dec);	1145	sv = decode_sv (dec);
900		1146
		1147	dSP;
		1148	ENTER; SAVETMPS;
		1149	SAVESTACK_POS ();
		1150	PUSHMARK (SP);
		1151	EXTEND (SP, 2);
		1152	PUSHs (tag_sv);
		1153	PUSHs (sv);
		1154
		1155	PUTBACK;
		1156	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
		1157	SPAGAIN;
		1158
		1159	if (SvTRUE (ERRSV))
		1160	{
		1161	SvREFCNT_dec (tag_sv);
		1162	FREETMPS; LEAVE;
		1163	ERR_ERRSV;
		1164	}
		1165
		1166	if (count)
		1167	{
		1168	SvREFCNT_dec (tag_sv);
		1169	SvREFCNT_dec (sv);
		1170	sv = SvREFCNT_inc (POPs);
		1171	}
		1172	else
		1173	{
901	AV *av = newAV ();	1174	AV *av = newAV ();
902	av_push (av, newSVuv (tag));	1175	av_push (av, tag_sv);
903	av_push (av, sv);	1176	av_push (av, sv);
904		1177
905	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1178	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
906	? cbor_tagged_stash	1179	? cbor_tagged_stash
907	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1180	: gv_stashpv ("CBOR::XS::Tagged" , 1);
908
909	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1181	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1182	}
		1183
		1184	PUTBACK;
		1185
		1186	FREETMPS; LEAVE;
910	}	1187	}
911	break;	1188	break;
912	}	1189	}
913		1190
914	return sv;	1191	return sv;
…		…
921	static SV *	1198	static SV *
922	decode_sv (dec_t *dec)	1199	decode_sv (dec_t *dec)
923	{	1200	{
924	WANT (1);	1201	WANT (1);
925		1202
926	switch (*dec->cur >> 5)	1203	switch (*dec->cur >> MAJOR_SHIFT)
927	{	1204	{
928	case 0: // unsigned int	1205	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
929	return newSVuv (decode_uint (dec));	1206	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
930	case 1: // negative int	1207	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
931	return newSViv (-1 - (IV)decode_uint (dec));	1208	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
932	case 2: // octet string	1209	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
933	return decode_str (dec, 0);	1210	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
934	case 3: // utf-8 string	1211	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
935	return decode_str (dec, 1);	1212
936	case 4: // array	1213	case MAJOR_MISC >> MAJOR_SHIFT:
937	return decode_av (dec);
938	case 5: // map
939	return decode_hv (dec);
940	case 6: // tag
941	return decode_tagged (dec);
942	case 7: // misc
943	switch (*dec->cur++ & 31)	1214	switch (*dec->cur++ & MINOR_MASK)
944	{	1215	{
945	case 20:	1216	case SIMPLE_FALSE:
946	#if CBOR_SLOW	1217	#if CBOR_SLOW
947	types_false = get_bool ("Types::Serialiser::false");	1218	types_false = get_bool ("Types::Serialiser::false");
948	#endif	1219	#endif
949	return newSVsv (types_false);	1220	return newSVsv (types_false);
950	case 21:	1221	case SIMPLE_TRUE:
951	#if CBOR_SLOW	1222	#if CBOR_SLOW
952	types_true = get_bool ("Types::Serialiser::true");	1223	types_true = get_bool ("Types::Serialiser::true");
953	#endif	1224	#endif
954	return newSVsv (types_true);	1225	return newSVsv (types_true);
955	case 22:	1226	case SIMPLE_NULL:
956	return newSVsv (&PL_sv_undef);	1227	return newSVsv (&PL_sv_undef);
957	case 23:	1228	case SIMPLE_UNDEF:
958	#if CBOR_SLOW	1229	#if CBOR_SLOW
959	types_error = get_bool ("Types::Serialiser::error");	1230	types_error = get_bool ("Types::Serialiser::error");
960	#endif	1231	#endif
961	return newSVsv (types_error);	1232	return newSVsv (types_error);
962		1233
963	case 25:	1234	case MISC_FLOAT16:
964	{	1235	{
965	WANT (2);	1236	WANT (2);
966		1237
967	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1238	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
968	dec->cur += 2;	1239	dec->cur += 2;
969		1240
970	return newSVnv (ecb_binary16_to_float (fp));	1241	return newSVnv (ecb_binary16_to_float (fp));
971	}	1242	}
972		1243
973	case 26:	1244	case MISC_FLOAT32:
974	{	1245	{
975	uint32_t fp;	1246	uint32_t fp;
976	WANT (4);	1247	WANT (4);
977	memcpy (&fp, dec->cur, 4);	1248	memcpy (&fp, dec->cur, 4);
978	dec->cur += 4;	1249	dec->cur += 4;
…		…
981	fp = ecb_bswap32 (fp);	1252	fp = ecb_bswap32 (fp);
982		1253
983	return newSVnv (ecb_binary32_to_float (fp));	1254	return newSVnv (ecb_binary32_to_float (fp));
984	}	1255	}
985		1256
986	case 27:	1257	case MISC_FLOAT64:
987	{	1258	{
988	uint64_t fp;	1259	uint64_t fp;
989	WANT (8);	1260	WANT (8);
990	memcpy (&fp, dec->cur, 8);	1261	memcpy (&fp, dec->cur, 8);
991	dec->cur += 8;	1262	dec->cur += 8;
…		…
994	fp = ecb_bswap64 (fp);	1265	fp = ecb_bswap64 (fp);
995		1266
996	return newSVnv (ecb_binary64_to_double (fp));	1267	return newSVnv (ecb_binary64_to_double (fp));
997	}	1268	}
998		1269
999	// 0..19 unassigned	1270	// 0..19 unassigned simple
1000	// 24 reserved + unassigned (reserved values are not encodable)	1271	// 24 reserved + unassigned simple (reserved values are not encodable)
		1272	// 28-30 unassigned misc
		1273	// 31 break code
1001	default:	1274	default:
1002	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1275	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1003	}	1276	}
1004		1277
1005	break;	1278	break;
1006	}	1279	}
1007		1280
…		…
1010	}	1283	}
1011		1284
1012	static SV *	1285	static SV *
1013	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1286	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1014	{	1287	{
1015	dec_t dec = { };	1288	dec_t dec = { 0 };
1016	SV *sv;	1289	SV *sv;
1017	STRLEN len;	1290	STRLEN len;
1018	char *data = SvPVbyte (string, len);	1291	char *data = SvPVbyte (string, len);
1019		1292
1020	if (len > cbor->max_size && cbor->max_size)	1293	if (len > cbor->max_size && cbor->max_size)
…		…
1034	if (dec.cur != dec.end && !dec.err)	1307	if (dec.cur != dec.end && !dec.err)
1035	dec.err = "garbage after CBOR object";	1308	dec.err = "garbage after CBOR object";
1036		1309
1037	if (dec.err)	1310	if (dec.err)
1038	{	1311	{
		1312	if (dec.shareable)
		1313	{
		1314	// need to break cyclic links, which would all be in shareable
		1315	int i;
		1316	SV **svp;
		1317
		1318	for (i = av_len (dec.shareable) + 1; i--; )
		1319	if ((svp = av_fetch (dec.shareable, i, 0)))
		1320	sv_setsv (*svp, &PL_sv_undef);
		1321	}
		1322
1039	SvREFCNT_dec (sv);	1323	SvREFCNT_dec (sv);
		1324
		1325	if (dec.err_sv)
		1326	sv_2mortal (dec.err_sv);
		1327
1040	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);	1328	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
1041	}	1329	}
1042		1330
1043	sv = sv_2mortal (sv);	1331	sv = sv_2mortal (sv);
1044		1332
1045	return sv;	1333	return sv;
1046	}	1334	}
1047		1335
		1336	/////////////////////////////////////////////////////////////////////////////
		1337	// incremental parser
		1338
		1339	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1340
		1341	// returns 0 for notyet, 1 for success or error
		1342	static int
		1343	incr_parse (CBOR *self, SV *cborstr)
		1344	{
		1345	STRLEN cur;
		1346	SvPV (cborstr, cur);
		1347
		1348	while (ecb_expect_true (self->incr_need <= cur))
		1349	{
		1350	// table of integer count bytes
		1351	static I8 incr_len[MINOR_MASK + 1] = {
		1352	0, 0, 0, 0, 0, 0, 0, 0,
		1353	0, 0, 0, 0, 0, 0, 0, 0,
		1354	0, 0, 0, 0, 0, 0, 0, 0,
		1355	1, 2, 4, 8,-1,-1,-1,-2
		1356	};
		1357
		1358	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1359	U8 m = *p & MINOR_MASK;
		1360	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1361	I8 ilen = incr_len[m];
		1362
		1363	self->incr_need = self->incr_pos + 1;
		1364
		1365	if (ecb_expect_false (ilen < 0))
		1366	{
		1367	if (m != MINOR_INDEF)
		1368	return 1; // error
		1369
		1370	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1371	{
		1372	if (count >= 0)
		1373	return 1; // error
		1374
		1375	count = 1;
		1376	}
		1377	else
		1378	{
		1379	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1380	count = -1;
		1381	}
		1382	}
		1383	else
		1384	{
		1385	self->incr_need += ilen;
		1386	if (ecb_expect_false (self->incr_need > cur))
		1387	return 0;
		1388
		1389	int major = *p >> MAJOR_SHIFT;
		1390
		1391	switch (major)
		1392	{
		1393	case MAJOR_TAG >> MAJOR_SHIFT:
		1394	++count; // tags merely prefix another value
		1395	break;
		1396
		1397	case MAJOR_BYTES >> MAJOR_SHIFT:
		1398	case MAJOR_TEXT >> MAJOR_SHIFT:
		1399	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1400	case MAJOR_MAP >> MAJOR_SHIFT:
		1401	{
		1402	UV len;
		1403
		1404	if (ecb_expect_false (ilen))
		1405	{
		1406	len = 0;
		1407
		1408	do {
		1409	len = (len << 8) | *++p;
		1410	} while (--ilen);
		1411	}
		1412	else
		1413	len = m;
		1414
		1415	switch (major)
		1416	{
		1417	case MAJOR_BYTES >> MAJOR_SHIFT:
		1418	case MAJOR_TEXT >> MAJOR_SHIFT:
		1419	self->incr_need += len;
		1420	if (ecb_expect_false (self->incr_need > cur))
		1421	return 0;
		1422
		1423	break;
		1424
		1425	case MAJOR_MAP >> MAJOR_SHIFT:
		1426	len <<= 1;
		1427	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1428	if (len)
		1429	{
		1430	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1431	count = len + 1;
		1432	}
		1433	break;
		1434	}
		1435	}
		1436	}
		1437	}
		1438
		1439	self->incr_pos = self->incr_need;
		1440
		1441	if (count > 0)
		1442	{
		1443	while (!--count)
		1444	{
		1445	if (!AvFILLp (self->incr_count))
		1446	return 1; // done
		1447
		1448	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1449	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1450	}
		1451
		1452	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1453	}
		1454	}
		1455
		1456	return 0;
		1457	}
		1458
		1459
1048	/////////////////////////////////////////////////////////////////////////////	1460	/////////////////////////////////////////////////////////////////////////////
1049	// XS interface functions	1461	// XS interface functions
1050		1462
1051	MODULE = CBOR::XS PACKAGE = CBOR::XS	1463	MODULE = CBOR::XS PACKAGE = CBOR::XS
1052		1464
…		…
1060		1472
1061	types_true = get_bool ("Types::Serialiser::true" );	1473	types_true = get_bool ("Types::Serialiser::true" );
1062	types_false = get_bool ("Types::Serialiser::false");	1474	types_false = get_bool ("Types::Serialiser::false");
1063	types_error = get_bool ("Types::Serialiser::error");	1475	types_error = get_bool ("Types::Serialiser::error");
1064		1476
		1477	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1478
1065	sv_cbor = newSVpv ("CBOR", 0);	1479	sv_cbor = newSVpv ("CBOR", 0);
1066	SvREADONLY_on (sv_cbor);	1480	SvREADONLY_on (sv_cbor);
		1481
		1482	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1067	}	1483	}
1068		1484
1069	PROTOTYPES: DISABLE	1485	PROTOTYPES: DISABLE
1070		1486
1071	void CLONE (...)	1487	void CLONE (...)
…		…
1090	void shrink (CBOR *self, int enable = 1)	1506	void shrink (CBOR *self, int enable = 1)
1091	ALIAS:	1507	ALIAS:
1092	shrink = F_SHRINK	1508	shrink = F_SHRINK
1093	allow_unknown = F_ALLOW_UNKNOWN	1509	allow_unknown = F_ALLOW_UNKNOWN
1094	allow_sharing = F_ALLOW_SHARING	1510	allow_sharing = F_ALLOW_SHARING
1095	dedup_keys = F_DEDUP_KEYS	1511	allow_cycles = F_ALLOW_CYCLES
		1512	forbid_objects = F_FORBID_OBJECTS
1096	dedup_strings = F_DEDUP_STRINGS	1513	pack_strings = F_PACK_STRINGS
		1514	text_keys = F_TEXT_KEYS
		1515	text_strings = F_TEXT_STRINGS
		1516	validate_utf8 = F_VALIDATE_UTF8
1097	PPCODE:	1517	PPCODE:
1098	{	1518	{
1099	if (enable)	1519	if (enable)
1100	self->flags |= ix;	1520	self->flags |= ix;
1101	else	1521	else
…		…
1107	void get_shrink (CBOR *self)	1527	void get_shrink (CBOR *self)
1108	ALIAS:	1528	ALIAS:
1109	get_shrink = F_SHRINK	1529	get_shrink = F_SHRINK
1110	get_allow_unknown = F_ALLOW_UNKNOWN	1530	get_allow_unknown = F_ALLOW_UNKNOWN
1111	get_allow_sharing = F_ALLOW_SHARING	1531	get_allow_sharing = F_ALLOW_SHARING
1112	get_dedup_keys = F_DEDUP_KEYS	1532	get_allow_cycles = F_ALLOW_CYCLES
		1533	get_forbid_objects = F_FORBID_OBJECTS
1113	get_dedup_strings = F_DEDUP_STRINGS	1534	get_pack_strings = F_PACK_STRINGS
		1535	get_text_keys = F_TEXT_KEYS
		1536	get_text_strings = F_TEXT_STRINGS
		1537	get_validate_utf8 = F_VALIDATE_UTF8
1114	PPCODE:	1538	PPCODE:
1115	XPUSHs (boolSV (self->flags & ix));	1539	XPUSHs (boolSV (self->flags & ix));
1116		1540
1117	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1541	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1118	PPCODE:	1542	PPCODE:
…		…
1131	XPUSHs (ST (0));	1555	XPUSHs (ST (0));
1132		1556
1133	int get_max_size (CBOR *self)	1557	int get_max_size (CBOR *self)
1134	CODE:	1558	CODE:
1135	RETVAL = self->max_size;	1559	RETVAL = self->max_size;
		1560	OUTPUT:
		1561	RETVAL
		1562
		1563	void filter (CBOR *self, SV *filter = 0)
		1564	PPCODE:
		1565	SvREFCNT_dec (self->filter);
		1566	self->filter = filter ? newSVsv (filter) : filter;
		1567	XPUSHs (ST (0));
		1568
		1569	SV *get_filter (CBOR *self)
		1570	CODE:
		1571	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1136	OUTPUT:	1572	OUTPUT:
1137	RETVAL	1573	RETVAL
1138		1574
1139	void encode (CBOR *self, SV *scalar)	1575	void encode (CBOR *self, SV *scalar)
1140	PPCODE:	1576	PPCODE:
…		…
1155	EXTEND (SP, 2);	1591	EXTEND (SP, 2);
1156	PUSHs (sv);	1592	PUSHs (sv);
1157	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1593	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1158	}	1594	}
1159		1595
		1596	void incr_parse (CBOR *self, SV *cborstr)
		1597	ALIAS:
		1598	incr_parse_multiple = 1
		1599	PPCODE:
		1600	{
		1601	if (SvUTF8 (cborstr))
		1602	sv_utf8_downgrade (cborstr, 0);
		1603
		1604	if (!self->incr_count)
		1605	{
		1606	self->incr_count = newAV ();
		1607	self->incr_pos = 0;
		1608	self->incr_need = 1;
		1609
		1610	av_push (self->incr_count, newSViv (1));
		1611	}
		1612
		1613	do
		1614	{
		1615	if (!incr_parse (self, cborstr))
		1616	{
		1617	if (self->incr_need > self->max_size && self->max_size)
		1618	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1619	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1620
		1621	break;
		1622	}
		1623
		1624	SV *sv;
		1625	char *offset;
		1626
		1627	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1628	XPUSHs (sv);
		1629
		1630	sv_chop (cborstr, offset);
		1631
		1632	av_clear (self->incr_count);
		1633	av_push (self->incr_count, newSViv (1));
		1634
		1635	self->incr_pos = 0;
		1636	self->incr_need = self->incr_pos + 1;
		1637	}
		1638	while (ix);
		1639	}
		1640
		1641	void incr_reset (CBOR *self)
		1642	CODE:
		1643	{
		1644	SvREFCNT_dec (self->incr_count);
		1645	self->incr_count = 0;
		1646	}
		1647
		1648	void DESTROY (CBOR *self)
		1649	PPCODE:
		1650	cbor_free (self);
		1651
1160	PROTOTYPES: ENABLE	1652	PROTOTYPES: ENABLE
1161		1653
1162	void encode_cbor (SV *scalar)	1654	void encode_cbor (SV *scalar)
		1655	ALIAS:
		1656	encode_cbor = 0
		1657	encode_cbor_sharing = F_ALLOW_SHARING
1163	PPCODE:	1658	PPCODE:
1164	{	1659	{
1165	CBOR cbor;	1660	CBOR cbor;
1166	cbor_init (&cbor);	1661	cbor_init (&cbor);
		1662	cbor.flags |= ix;
1167	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1663	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1168	XPUSHs (scalar);	1664	XPUSHs (scalar);
1169	}	1665	}
1170		1666
1171	void decode_cbor (SV *cborstr)	1667	void decode_cbor (SV *cborstr)

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