[ViewVC] Diff of: cvs/CBOR-XS/XS.xs

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.22 by root, Wed Nov 20 15:05:46 2013 UTC vs.
Revision 1.44 by root, Tue Feb 18 22:12:12 2014 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"
13		14
14	// compatibility with perl <5.18	15	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	16	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	17	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	20	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	21	#endif
21	#ifndef HvNAMEUTF8	22	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	23	# define HvNAMEUTF8(hv) 0
23	#endif	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	};
24		65
25	// known tags	66	// known tags
26	enum cbor_tag	67	enum cbor_tag
27	{	68	{
28	// inofficial extensions (pending iana registration)	69	// extensions
		70	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	71	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	72	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	73	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	74	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	75	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	76	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		77
37	// rfc7049	78	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	79	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	80	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	81	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	82	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	83	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	84	CBOR_TAG_BIGFLOAT = 5, // array
44		85
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	86	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	87	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	88	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	89	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		90
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	91	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	92	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	93	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	94	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	95	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		96
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	97	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	98	};
58		99
59	#define F_SHRINK 0x00000001UL	100	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	101	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	102	#define F_ALLOW_SHARING 0x00000004UL
		103	#define F_ALLOW_CYCLES 0x00000008UL
62	#define F_DEDUP_STRINGS 0x00000008UL //TODO	104	#define F_PACK_STRINGS 0x00000010UL
		105	#define F_VALIDATE_UTF8 0x00000020UL
63		106
64	#define INIT_SIZE 32 // initial scalar size to be allocated	107	#define INIT_SIZE 32 // initial scalar size to be allocated
65		108
66	#define SB do {	109	#define SB do {
67	#define SE } while (0)	110	#define SE } while (0)
…		…
79	# define CBOR_SLOW 0	122	# define CBOR_SLOW 0
80	# define CBOR_STASH cbor_stash	123	# define CBOR_STASH cbor_stash
81	#endif	124	#endif
82		125
83	static HV cbor_stash, types_boolean_stash, types_error_stash, cbor_tagged_stash; // CBOR::XS::	126	static HV cbor_stash, types_boolean_stash, types_error_stash, cbor_tagged_stash; // CBOR::XS::
84	static SV types_true, types_false, types_error, sv_cbor;	127	static SV types_true, types_false, types_error, sv_cbor, *default_filter;
85		128
86	typedef struct {	129	typedef struct {
87	U32 flags;	130	U32 flags;
88	U32 max_depth;	131	U32 max_depth;
89	STRLEN max_size;	132	STRLEN max_size;
		133	SV *filter;
		134
		135	// for the incremental parser
		136	STRLEN incr_pos; // the current offset into the text
		137	STRLEN incr_need; // minimum bytes needed to decode
		138	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
90	} CBOR;	139	} CBOR;
91		140
92	ecb_inline void	141	ecb_inline void
93	cbor_init (CBOR *cbor)	142	cbor_init (CBOR *cbor)
94	{	143	{
95	Zero (cbor, 1, CBOR);	144	Zero (cbor, 1, CBOR);
96	cbor->max_depth = 512;	145	cbor->max_depth = 512;
		146	}
		147
		148	ecb_inline void
		149	cbor_free (CBOR *cbor)
		150	{
		151	SvREFCNT_dec (cbor->filter);
		152	SvREFCNT_dec (cbor->incr_count);
97	}	153	}
98		154
99	/////////////////////////////////////////////////////////////////////////////	155	/////////////////////////////////////////////////////////////////////////////
100	// utility functions	156	// utility functions
101		157
…		…
131	{	187	{
132	return idx > 23	188	return idx > 23
133	? idx > 0xffU	189	? idx > 0xffU
134	? idx > 0xffffU	190	? idx > 0xffffU
135	? idx > 0xffffffffU	191	? idx > 0xffffffffU
		192	? 11
136	? 7	193	: 7
137	: 6
138	: 5	194	: 5
139	: 4	195	: 4
140	: 3;	196	: 3;
141	}	197	}
142		198
…		…
179	static void	235	static void
180	encode_uint (enc_t *enc, int major, UV len)	236	encode_uint (enc_t *enc, int major, UV len)
181	{	237	{
182	need (enc, 9);	238	need (enc, 9);
183		239
184	if (len < 24)	240	if (ecb_expect_true (len < LENGTH_EXT1))
185	*enc->cur++ = major \| len;	241	*enc->cur++ = major \| len;
186	else if (len <= 0xff)	242	else if (ecb_expect_true (len <= 0xffU))
187	{	243	{
188	*enc->cur++ = major \| 24;	244	*enc->cur++ = major \| LENGTH_EXT1;
189	*enc->cur++ = len;	245	*enc->cur++ = len;
190	}	246	}
191	else if (len <= 0xffff)	247	else if (len <= 0xffffU)
192	{	248	{
193	*enc->cur++ = major \| 25;	249	*enc->cur++ = major \| LENGTH_EXT2;
194	*enc->cur++ = len >> 8;	250	*enc->cur++ = len >> 8;
195	*enc->cur++ = len;	251	*enc->cur++ = len;
196	}	252	}
197	else if (len <= 0xffffffff)	253	else if (len <= 0xffffffffU)
198	{	254	{
199	*enc->cur++ = major \| 26;	255	*enc->cur++ = major \| LENGTH_EXT4;
200	*enc->cur++ = len >> 24;	256	*enc->cur++ = len >> 24;
201	*enc->cur++ = len >> 16;	257	*enc->cur++ = len >> 16;
202	*enc->cur++ = len >> 8;	258	*enc->cur++ = len >> 8;
203	*enc->cur++ = len;	259	*enc->cur++ = len;
204	}	260	}
205	else	261	else
206	{	262	{
207	*enc->cur++ = major \| 27;	263	*enc->cur++ = major \| LENGTH_EXT8;
208	*enc->cur++ = len >> 56;	264	*enc->cur++ = len >> 56;
209	*enc->cur++ = len >> 48;	265	*enc->cur++ = len >> 48;
210	*enc->cur++ = len >> 40;	266	*enc->cur++ = len >> 40;
211	*enc->cur++ = len >> 32;	267	*enc->cur++ = len >> 32;
212	*enc->cur++ = len >> 24;	268	*enc->cur++ = len >> 24;
…		…
217	}	273	}
218		274
219	ecb_inline void	275	ecb_inline void
220	encode_tag (enc_t *enc, UV tag)	276	encode_tag (enc_t *enc, UV tag)
221	{	277	{
222	encode_uint (enc, 0xc0, tag);	278	encode_uint (enc, MAJOR_TAG, tag);
		279	}
		280
		281	ecb_inline void
		282	encode_str (enc_t enc, int utf8, char str, STRLEN len)
		283	{
		284	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
		285	need (enc, len);
		286	memcpy (enc->cur, str, len);
		287	enc->cur += len;
223	}	288	}
224		289
225	static void	290	static void
226	encode_str (enc_t enc, int utf8, char str, STRLEN len)	291	encode_strref (enc_t enc, int utf8, char str, STRLEN len)
227	{	292	{
228	if (ecb_expect_false (enc->cbor.flags & F_DEDUP_STRINGS))	293	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
229	{	294	{
230	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);	295	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
231		296
232	if (SvOK (*svp))	297	if (SvOK (*svp))
233	{	298	{
234	// already registered, use stringref	299	// already registered, use stringref
235	encode_tag (enc, CBOR_TAG_STRINGREF);	300	encode_tag (enc, CBOR_TAG_STRINGREF);
236	encode_uint (enc, 0x00, SvUV (*svp));	301	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
237	return;	302	return;
238	}	303	}
239	else if (len >= minimum_string_length (enc->stringref_idx))	304	else if (len >= minimum_string_length (enc->stringref_idx))
240	{	305	{
241	// register only	306	// register only
242	sv_setuv (*svp, enc->stringref_idx);	307	sv_setuv (*svp, enc->stringref_idx);
243	++enc->stringref_idx;	308	++enc->stringref_idx;
244	}	309	}
245	}	310	}
246		311
247	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	312	encode_str (enc, utf8, str, len);
248	need (enc, len);
249	memcpy (enc->cur, str, len);
250	enc->cur += len;
251	}	313	}
252		314
253	static void encode_sv (enc_t enc, SV sv);	315	static void encode_sv (enc_t enc, SV sv);
254		316
255	static void	317	static void
…		…
260	if (enc->depth >= enc->cbor.max_depth)	322	if (enc->depth >= enc->cbor.max_depth)
261	croak (ERR_NESTING_EXCEEDED);	323	croak (ERR_NESTING_EXCEEDED);
262		324
263	++enc->depth;	325	++enc->depth;
264		326
265	encode_uint (enc, 0x80, len + 1);	327	encode_uint (enc, MAJOR_ARRAY, len + 1);
266		328
267	for (i = 0; i <= len; ++i)	329	for (i = 0; i <= len; ++i)
268	{	330	{
269	SV **svp = av_fetch (av, i, 0);	331	SV **svp = av_fetch (av, i, 0);
270	encode_sv (enc, svp ? *svp : &PL_sv_undef);	332	encode_sv (enc, svp ? *svp : &PL_sv_undef);
271	}	333	}
272		334
273	--enc->depth;	335	--enc->depth;
274	}	336	}
275		337
276	ecb_inline void
277	encode_he (enc_t enc, HE he)
278	{
279	}
280
281	static void	338	static void
282	encode_hv (enc_t enc, HV hv)	339	encode_hv (enc_t enc, HV hv)
283	{	340	{
284	HE *he;	341	HE *he;
285		342
…		…
290		347
291	int pairs = hv_iterinit (hv);	348	int pairs = hv_iterinit (hv);
292	int mg = SvMAGICAL (hv);	349	int mg = SvMAGICAL (hv);
293		350
294	if (mg)	351	if (mg)
295	encode_ch (enc, 0xa0 \| 31);	352	encode_ch (enc, MAJOR_MAP \| MINOR_INDEF);
296	else	353	else
297	encode_uint (enc, 0xa0, pairs);	354	encode_uint (enc, MAJOR_MAP, pairs);
298		355
299	while ((he = hv_iternext (hv)))	356	while ((he = hv_iternext (hv)))
300	{	357	{
301	if (HeKLEN (he) == HEf_SVKEY)	358	if (HeKLEN (he) == HEf_SVKEY)
302	encode_sv (enc, HeSVKEY (he));	359	encode_sv (enc, HeSVKEY (he));
303	else	360	else
304	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	361	encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
305		362
306	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	363	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
307	}	364	}
308		365
309	if (mg)	366	if (mg)
310	encode_ch (enc, 0xe0 \| 31);	367	encode_ch (enc, MAJOR_MISC \| MINOR_INDEF);
311		368
312	--enc->depth;	369	--enc->depth;
313	}	370	}
314		371
315	// encode objects, arrays and special \0=false and \1=true values.	372	// encode objects, arrays and special \0=false and \1=true values.
316	static void	373	static void
317	encode_rv (enc_t enc, SV sv)	374	encode_rv (enc_t enc, SV sv)
318	{	375	{
319	SvGETMAGIC (sv);	376	SvGETMAGIC (sv);
320
321	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
322	&& ecb_expect_false (SvREFCNT (sv) > 1))
323	{
324	if (!enc->shareable)
325	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
326
327	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
328
329	if (SvOK (*svp))
330	{
331	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
332	encode_uint (enc, 0x00, SvUV (*svp));
333	return;
334	}
335	else
336	{
337	sv_setuv (*svp, enc->shareable_idx);
338	++enc->shareable_idx;
339	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
340	}
341	}
342		377
343	svtype svt = SvTYPE (sv);	378	svtype svt = SvTYPE (sv);
344		379
345	if (ecb_expect_false (SvOBJECT (sv)))	380	if (ecb_expect_false (SvOBJECT (sv)))
346	{	381	{
…		…
353	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	388	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
354	? cbor_tagged_stash	389	? cbor_tagged_stash
355	: gv_stashpv ("CBOR::XS::Tagged" , 1);	390	: gv_stashpv ("CBOR::XS::Tagged" , 1);
356		391
357	HV *stash = SvSTASH (sv);	392	HV *stash = SvSTASH (sv);
358	GV *method;
359		393
360	if (stash == boolean_stash)	394	if (stash == boolean_stash)
361	encode_ch (enc, SvIV (sv) ? 0xe0 \| 21 : 0xe0 \| 20);	395	{
		396	encode_ch (enc, SvIV (sv) ? MAJOR_MISC \| SIMPLE_TRUE : MAJOR_MISC \| SIMPLE_FALSE);
		397	return;
		398	}
362	else if (stash == error_stash)	399	else if (stash == error_stash)
363	encode_ch (enc, 0xe0 \| 23);	400	{
		401	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
		402	return;
		403	}
364	else if (stash == tagged_stash)	404	else if (stash == tagged_stash)
365	{	405	{
366	if (svt != SVt_PVAV)	406	if (svt != SVt_PVAV)
367	croak ("encountered CBOR::XS::Tagged object that isn't an array");	407	croak ("encountered CBOR::XS::Tagged object that isn't an array");
368		408
369	encode_uint (enc, 0xc0, SvUV (av_fetch ((AV )sv, 0, 1)));	409	encode_uint (enc, MAJOR_TAG, SvUV (av_fetch ((AV )sv, 0, 1)));
370	encode_sv (enc, av_fetch ((AV )sv, 1, 1));	410	encode_sv (enc, av_fetch ((AV )sv, 1, 1));
		411
		412	return;
		413	}
		414	}
		415
		416	if (ecb_expect_false (SvREFCNT (sv) > 1)
		417	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		418	{
		419	if (!enc->shareable)
		420	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
		421
		422	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
		423
		424	if (SvOK (*svp))
371	}	425	{
		426	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		427	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		428	return;
		429	}
		430	else
		431	{
		432	sv_setuv (*svp, enc->shareable_idx);
		433	++enc->shareable_idx;
		434	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		435	}
		436	}
		437
		438	if (ecb_expect_false (SvOBJECT (sv)))
		439	{
		440	HV *stash = SvSTASH (sv);
		441	GV *method;
		442
372	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	443	if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
373	{	444	{
374	dSP;	445	dSP;
375		446
376	ENTER; SAVETMPS; PUSHMARK (SP);	447	ENTER; SAVETMPS; PUSHMARK (SP);
377	// we re-bless the reference to get overload and other niceties right	448	// we re-bless the reference to get overload and other niceties right
…		…
409	// catch this surprisingly common error	480	// catch this surprisingly common error
410	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	481	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
411	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	482	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
412		483
413	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	484	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
414	encode_uint (enc, 0x80, count + 1);	485	encode_uint (enc, MAJOR_ARRAY, count + 1);
415	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	486	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
416		487
417	while (count)	488	while (count)
418	encode_sv (enc, SP[1 - count--]);	489	encode_sv (enc, SP[1 - count--]);
419		490
420	PUTBACK;	491	PUTBACK;
…		…
441	{	512	{
442	double nv = SvNVX (sv);	513	double nv = SvNVX (sv);
443		514
444	need (enc, 9);	515	need (enc, 9);
445		516
446	if (ecb_expect_false (nv == (U32)nv))	517	if (ecb_expect_false (nv == (NV)(U32)nv))
447	encode_uint (enc, 0x00, (U32)nv);	518	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
448	//TODO: maybe I32?	519	//TODO: maybe I32?
449	else if (ecb_expect_false (nv == (float)nv))	520	else if (ecb_expect_false (nv == (float)nv))
450	{	521	{
451	uint32_t fp = ecb_float_to_binary32 (nv);	522	uint32_t fp = ecb_float_to_binary32 (nv);
452		523
453	*enc->cur++ = 0xe0 \| 26;	524	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT32;
454		525
455	if (!ecb_big_endian ())	526	if (!ecb_big_endian ())
456	fp = ecb_bswap32 (fp);	527	fp = ecb_bswap32 (fp);
457		528
458	memcpy (enc->cur, &fp, 4);	529	memcpy (enc->cur, &fp, 4);
…		…
460	}	531	}
461	else	532	else
462	{	533	{
463	uint64_t fp = ecb_double_to_binary64 (nv);	534	uint64_t fp = ecb_double_to_binary64 (nv);
464		535
465	*enc->cur++ = 0xe0 \| 27;	536	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT64;
466		537
467	if (!ecb_big_endian ())	538	if (!ecb_big_endian ())
468	fp = ecb_bswap64 (fp);	539	fp = ecb_bswap64 (fp);
469		540
470	memcpy (enc->cur, &fp, 8);	541	memcpy (enc->cur, &fp, 8);
…		…
479		550
480	if (SvPOKp (sv))	551	if (SvPOKp (sv))
481	{	552	{
482	STRLEN len;	553	STRLEN len;
483	char *str = SvPV (sv, len);	554	char *str = SvPV (sv, len);
484	encode_str (enc, SvUTF8 (sv), str, len);	555	encode_strref (enc, SvUTF8 (sv), str, len);
485	}	556	}
486	else if (SvNOKp (sv))	557	else if (SvNOKp (sv))
487	encode_nv (enc, sv);	558	encode_nv (enc, sv);
488	else if (SvIOKp (sv))	559	else if (SvIOKp (sv))
489	{	560	{
490	if (SvIsUV (sv))	561	if (SvIsUV (sv))
491	encode_uint (enc, 0x00, SvUVX (sv));	562	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
492	else if (SvIVX (sv) >= 0)	563	else if (SvIVX (sv) >= 0)
493	encode_uint (enc, 0x00, SvIVX (sv));	564	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
494	else	565	else
495	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	566	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
496	}	567	}
497	else if (SvROK (sv))	568	else if (SvROK (sv))
498	encode_rv (enc, SvRV (sv));	569	encode_rv (enc, SvRV (sv));
499	else if (!SvOK (sv))	570	else if (!SvOK (sv))
500	encode_ch (enc, 0xe0 \| 22);	571	encode_ch (enc, MAJOR_MISC \| SIMPLE_NULL);
501	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	572	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
502	encode_ch (enc, 0xe0 \| 23);	573	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
503	else	574	else
504	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	575	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
505	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	576	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
506	}	577	}
507		578
…		…
515	enc.cur = SvPVX (enc.sv);	586	enc.cur = SvPVX (enc.sv);
516	enc.end = SvEND (enc.sv);	587	enc.end = SvEND (enc.sv);
517		588
518	SvPOK_only (enc.sv);	589	SvPOK_only (enc.sv);
519		590
520	if (cbor->flags & F_DEDUP_STRINGS)	591	if (cbor->flags & F_PACK_STRINGS)
521	{	592	{
522	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	593	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
523	enc.stringref[0]= (HV )sv_2mortal ((SV )newHV ());	594	enc.stringref[0]= (HV )sv_2mortal ((SV )newHV ());
524	enc.stringref[1]= (HV )sv_2mortal ((SV )newHV ());	595	enc.stringref[1]= (HV )sv_2mortal ((SV )newHV ());
525	}	596	}
…		…
547	CBOR cbor;	618	CBOR cbor;
548	U32 depth; // recursion depth	619	U32 depth; // recursion depth
549	U32 maxdepth; // recursion depth limit	620	U32 maxdepth; // recursion depth limit
550	AV *shareable;	621	AV *shareable;
551	AV *stringref;	622	AV *stringref;
		623	SV *decode_tagged;
552	} dec_t;	624	} dec_t;
553		625
554	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	626	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE
555		627
556	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	628	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")
…		…
559	#define DEC_DEC_DEPTH --dec->depth	631	#define DEC_DEC_DEPTH --dec->depth
560		632
561	static UV	633	static UV
562	decode_uint (dec_t *dec)	634	decode_uint (dec_t *dec)
563	{	635	{
564	switch (*dec->cur & 31)	636	U8 m = *dec->cur & MINOR_MASK;
565	{	637	++dec->cur;
566	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
567	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
568	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
569	return *dec->cur++ & 31;
570		638
571	case 24:	639	if (ecb_expect_true (m < LENGTH_EXT1))
		640	return m;
		641	else if (ecb_expect_true (m == LENGTH_EXT1))
		642	{
572	WANT (2);	643	WANT (1);
573	dec->cur += 2;	644	dec->cur += 1;
574	return dec->cur[-1];	645	return dec->cur[-1];
575		646	}
576	case 25:	647	else if (ecb_expect_true (m == LENGTH_EXT2))
		648	{
577	WANT (3);	649	WANT (2);
578	dec->cur += 3;	650	dec->cur += 2;
579	return (((UV)dec->cur[-2]) << 8)	651	return (((UV)dec->cur[-2]) << 8)
580	\| ((UV)dec->cur[-1]);	652	\| ((UV)dec->cur[-1]);
581		653	}
582	case 26:	654	else if (ecb_expect_true (m == LENGTH_EXT4))
		655	{
583	WANT (5);	656	WANT (4);
584	dec->cur += 5;	657	dec->cur += 4;
585	return (((UV)dec->cur[-4]) << 24)	658	return (((UV)dec->cur[-4]) << 24)
586	\| (((UV)dec->cur[-3]) << 16)	659	\| (((UV)dec->cur[-3]) << 16)
587	\| (((UV)dec->cur[-2]) << 8)	660	\| (((UV)dec->cur[-2]) << 8)
588	\| ((UV)dec->cur[-1]);	661	\| ((UV)dec->cur[-1]);
589		662	}
590	case 27:	663	else if (ecb_expect_true (m == LENGTH_EXT8))
		664	{
591	WANT (9);	665	WANT (8);
592	dec->cur += 9;	666	dec->cur += 8;
		667
		668	return
		669	#if UVSIZE < 8
		670	0
		671	#else
593	return (((UV)dec->cur[-8]) << 56)	672	(((UV)dec->cur[-8]) << 56)
594	\| (((UV)dec->cur[-7]) << 48)	673	\| (((UV)dec->cur[-7]) << 48)
595	\| (((UV)dec->cur[-6]) << 40)	674	\| (((UV)dec->cur[-6]) << 40)
596	\| (((UV)dec->cur[-5]) << 32)	675	\| (((UV)dec->cur[-5]) << 32)
		676	#endif
597	\| (((UV)dec->cur[-4]) << 24)	677	\| (((UV)dec->cur[-4]) << 24)
598	\| (((UV)dec->cur[-3]) << 16)	678	\| (((UV)dec->cur[-3]) << 16)
599	\| (((UV)dec->cur[-2]) << 8)	679	\| (((UV)dec->cur[-2]) << 8)
600	\| ((UV)dec->cur[-1]);	680	\| ((UV)dec->cur[-1]);
601		681	}
602	default:	682	else
603	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	683	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
604	}
605		684
606	fail:	685	fail:
607	return 0;	686	return 0;
608	}	687	}
609		688
…		…
614	{	693	{
615	AV *av = newAV ();	694	AV *av = newAV ();
616		695
617	DEC_INC_DEPTH;	696	DEC_INC_DEPTH;
618		697
619	if ((*dec->cur & 31) == 31)	698	if (*dec->cur == (MAJOR_ARRAY \| MINOR_INDEF))
620	{	699	{
621	++dec->cur;	700	++dec->cur;
622		701
623	for (;;)	702	for (;;)
624	{	703	{
625	WANT (1);	704	WANT (1);
626		705
627	if (*dec->cur == (0xe0 \| 31))	706	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
628	{	707	{
629	++dec->cur;	708	++dec->cur;
630	break;	709	break;
631	}	710	}
632		711
…		…
635	}	714	}
636	else	715	else
637	{	716	{
638	int i, len = decode_uint (dec);	717	int i, len = decode_uint (dec);
639		718
		719	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
640	av_fill (av, len - 1);	720	av_fill (av, len - 1);
641		721
642	for (i = 0; i < len; ++i)	722	for (i = 0; i < len; ++i)
643	AvARRAY (av)[i] = decode_sv (dec);	723	AvARRAY (av)[i] = decode_sv (dec);
644	}	724	}
…		…
656	decode_he (dec_t dec, HV hv)	736	decode_he (dec_t dec, HV hv)
657	{	737	{
658	// for speed reasons, we specialcase single-string	738	// for speed reasons, we specialcase single-string
659	// byte or utf-8 strings as keys, but only when !stringref	739	// byte or utf-8 strings as keys, but only when !stringref
660		740
661	if (expect_true (!dec->stringref))	741	if (ecb_expect_true (!dec->stringref))
662	if (dec->cur >= 0x40 && dec->cur <= 0x40 + 27)	742	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
663	{	743	{
664	I32 len = decode_uint (dec);	744	I32 len = decode_uint (dec);
665	char key = (char )dec->cur;	745	char key = (char )dec->cur;
666		746
667	dec->cur += len;	747	dec->cur += len;
668		748
669	if (ecb_expect_false (dec->stringref))
670	av_push (dec->stringref, newSVpvn (key, len));
671
672	hv_store (hv, key, len, decode_sv (dec), 0);	749	hv_store (hv, key, len, decode_sv (dec), 0);
673		750
674	return;	751	return;
675	}	752	}
676	else if (dec->cur >= 0x60 && dec->cur <= 0x60 + 27)	753	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
677	{	754	{
678	I32 len = decode_uint (dec);	755	I32 len = decode_uint (dec);
679	char key = (char )dec->cur;	756	char key = (char )dec->cur;
680		757
681	dec->cur += len;	758	dec->cur += len;
682		759
683	if (ecb_expect_false (dec->stringref))	760	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
684	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	761	if (!is_utf8_string (key, len))
		762	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
685		763
686	hv_store (hv, key, -len, decode_sv (dec), 0);	764	hv_store (hv, key, -len, decode_sv (dec), 0);
687		765
688	return;	766	return;
689	}	767	}
…		…
691	SV *k = decode_sv (dec);	769	SV *k = decode_sv (dec);
692	SV *v = decode_sv (dec);	770	SV *v = decode_sv (dec);
693		771
694	hv_store_ent (hv, k, v, 0);	772	hv_store_ent (hv, k, v, 0);
695	SvREFCNT_dec (k);	773	SvREFCNT_dec (k);
		774
		775	fail:
		776	;
696	}	777	}
697		778
698	static SV *	779	static SV *
699	decode_hv (dec_t *dec)	780	decode_hv (dec_t *dec)
700	{	781	{
701	HV *hv = newHV ();	782	HV *hv = newHV ();
702		783
703	DEC_INC_DEPTH;	784	DEC_INC_DEPTH;
704		785
705	if ((*dec->cur & 31) == 31)	786	if (*dec->cur == (MAJOR_MAP \| MINOR_INDEF))
706	{	787	{
707	++dec->cur;	788	++dec->cur;
708		789
709	for (;;)	790	for (;;)
710	{	791	{
711	WANT (1);	792	WANT (1);
712		793
713	if (*dec->cur == (0xe0 \| 31))	794	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
714	{	795	{
715	++dec->cur;	796	++dec->cur;
716	break;	797	break;
717	}	798	}
718		799
…		…
739	static SV *	820	static SV *
740	decode_str (dec_t *dec, int utf8)	821	decode_str (dec_t *dec, int utf8)
741	{	822	{
742	SV *sv = 0;	823	SV *sv = 0;
743		824
744	if ((*dec->cur & 31) == 31)	825	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
745	{	826	{
		827	// indefinite length strings
746	++dec->cur;	828	++dec->cur;
747		829
		830	U8 major = *dec->cur & MAJOR_MISC;
		831
748	sv = newSVpvn ("", 0);	832	sv = newSVpvn ("", 0);
749		833
750	// not very fast, and certainly not robust against illegal input
751	for (;;)	834	for (;;)
752	{	835	{
753	WANT (1);	836	WANT (1);
754		837
755	if (*dec->cur == (0xe0 \| 31))	838	if ((*dec->cur - major) > LENGTH_EXT8)
		839	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
756	{	840	{
757	++dec->cur;	841	++dec->cur;
758	break;	842	break;
759	}	843	}
		844	else
		845	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
760		846
761	sv_catsv (sv, decode_sv (dec));	847	STRLEN len = decode_uint (dec);
		848
		849	WANT (len);
		850	sv_catpvn (sv, dec->cur, len);
		851	dec->cur += len;
762	}	852	}
763	}	853	}
764	else	854	else
765	{	855	{
766	STRLEN len = decode_uint (dec);	856	STRLEN len = decode_uint (dec);
767		857
768	WANT (len);	858	WANT (len);
769	sv = newSVpvn (dec->cur, len);	859	sv = newSVpvn (dec->cur, len);
770	dec->cur += len;	860	dec->cur += len;
		861
		862	if (ecb_expect_false (dec->stringref)
		863	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		864	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
771	}	865	}
772		866
773	if (utf8)	867	if (utf8)
		868	{
		869	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		870	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		871	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		872
774	SvUTF8_on (sv);	873	SvUTF8_on (sv);
775		874	}
776	if (ecb_expect_false (dec->stringref)
777	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
778	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
779		875
780	return sv;	876	return sv;
781		877
782	fail:	878	fail:
783	SvREFCNT_dec (sv);	879	SvREFCNT_dec (sv);
…		…
815	}	911	}
816	break;	912	break;
817		913
818	case CBOR_TAG_STRINGREF:	914	case CBOR_TAG_STRINGREF:
819	{	915	{
820	if ((*dec->cur >> 5) != 0)	916	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
821	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	917	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
822		918
823	UV idx = decode_uint (dec);	919	UV idx = decode_uint (dec);
824		920
825	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))	921	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))
…		…
832	case CBOR_TAG_VALUE_SHAREABLE:	928	case CBOR_TAG_VALUE_SHAREABLE:
833	{	929	{
834	if (ecb_expect_false (!dec->shareable))	930	if (ecb_expect_false (!dec->shareable))
835	dec->shareable = (AV )sv_2mortal ((SV )newAV ());	931	dec->shareable = (AV )sv_2mortal ((SV )newAV ());
836		932
		933	if (dec->cbor.flags & F_ALLOW_CYCLES)
		934	{
837	sv = newSV (0);	935	sv = newSV (0);
838	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	936	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
839		937
840	SV *osv = decode_sv (dec);	938	SV *osv = decode_sv (dec);
841	sv_setsv (sv, osv);	939	sv_setsv (sv, osv);
842	SvREFCNT_dec_NN (osv);	940	SvREFCNT_dec_NN (osv);
		941	}
		942	else
		943	{
		944	av_push (dec->shareable, &PL_sv_undef);
		945	int idx = AvFILLp (dec->shareable);
		946	sv = decode_sv (dec);
		947	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		948	}
843	}	949	}
844	break;	950	break;
845		951
846	case CBOR_TAG_VALUE_SHAREDREF:	952	case CBOR_TAG_VALUE_SHAREDREF:
847	{	953	{
848	if ((*dec->cur >> 5) != 0)	954	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
849	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	955	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
850		956
851	UV idx = decode_uint (dec);	957	UV idx = decode_uint (dec);
852		958
853	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))	959	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))
854	ERR ("corrupted CBOR data (sharedref index out of bounds)");	960	ERR ("corrupted CBOR data (sharedref index out of bounds)");
855		961
856	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	962	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		963
		964	if (sv == &PL_sv_undef)
		965	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
857	}	966	}
858	break;	967	break;
859		968
860	case CBOR_TAG_PERL_OBJECT:	969	case CBOR_TAG_PERL_OBJECT:
861	{	970	{
…		…
910		1019
911	default:	1020	default:
912	{	1021	{
913	sv = decode_sv (dec);	1022	sv = decode_sv (dec);
914		1023
		1024	dSP;
		1025	ENTER; SAVETMPS; PUSHMARK (SP);
		1026	EXTEND (SP, 2);
		1027	PUSHs (newSVuv (tag));
		1028	PUSHs (sv);
		1029
		1030	PUTBACK;
		1031	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY \| G_EVAL);
		1032	SPAGAIN;
		1033
		1034	if (SvTRUE (ERRSV))
		1035	{
		1036	FREETMPS; LEAVE;
		1037	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));
		1038	}
		1039
		1040	if (count)
		1041	{
		1042	SvREFCNT_dec (sv);
		1043	sv = SvREFCNT_inc (POPs);
		1044	}
		1045	else
		1046	{
915	AV *av = newAV ();	1047	AV *av = newAV ();
916	av_push (av, newSVuv (tag));	1048	av_push (av, newSVuv (tag));
917	av_push (av, sv);	1049	av_push (av, sv);
918		1050
919	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	1051	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
920	? cbor_tagged_stash	1052	? cbor_tagged_stash
921	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1053	: gv_stashpv ("CBOR::XS::Tagged" , 1);
922
923	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1054	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1055	}
		1056
		1057	PUTBACK;
		1058
		1059	FREETMPS; LEAVE;
924	}	1060	}
925	break;	1061	break;
926	}	1062	}
927		1063
928	return sv;	1064	return sv;
…		…
935	static SV *	1071	static SV *
936	decode_sv (dec_t *dec)	1072	decode_sv (dec_t *dec)
937	{	1073	{
938	WANT (1);	1074	WANT (1);
939		1075
940	switch (*dec->cur >> 5)	1076	switch (*dec->cur >> MAJOR_SHIFT)
941	{	1077	{
942	case 0: // unsigned int	1078	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
943	return newSVuv (decode_uint (dec));	1079	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
944	case 1: // negative int	1080	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
945	return newSViv (-1 - (IV)decode_uint (dec));	1081	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
946	case 2: // octet string	1082	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
947	return decode_str (dec, 0);	1083	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
948	case 3: // utf-8 string	1084	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
949	return decode_str (dec, 1);	1085
950	case 4: // array	1086	case MAJOR_MISC >> MAJOR_SHIFT:
951	return decode_av (dec);
952	case 5: // map
953	return decode_hv (dec);
954	case 6: // tag
955	return decode_tagged (dec);
956	case 7: // misc
957	switch (*dec->cur++ & 31)	1087	switch (*dec->cur++ & MINOR_MASK)
958	{	1088	{
959	case 20:	1089	case SIMPLE_FALSE:
960	#if CBOR_SLOW	1090	#if CBOR_SLOW
961	types_false = get_bool ("Types::Serialiser::false");	1091	types_false = get_bool ("Types::Serialiser::false");
962	#endif	1092	#endif
963	return newSVsv (types_false);	1093	return newSVsv (types_false);
964	case 21:	1094	case SIMPLE_TRUE:
965	#if CBOR_SLOW	1095	#if CBOR_SLOW
966	types_true = get_bool ("Types::Serialiser::true");	1096	types_true = get_bool ("Types::Serialiser::true");
967	#endif	1097	#endif
968	return newSVsv (types_true);	1098	return newSVsv (types_true);
969	case 22:	1099	case SIMPLE_NULL:
970	return newSVsv (&PL_sv_undef);	1100	return newSVsv (&PL_sv_undef);
971	case 23:	1101	case SIMPLE_UNDEF:
972	#if CBOR_SLOW	1102	#if CBOR_SLOW
973	types_error = get_bool ("Types::Serialiser::error");	1103	types_error = get_bool ("Types::Serialiser::error");
974	#endif	1104	#endif
975	return newSVsv (types_error);	1105	return newSVsv (types_error);
976		1106
977	case 25:	1107	case MISC_FLOAT16:
978	{	1108	{
979	WANT (2);	1109	WANT (2);
980		1110
981	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];	1111	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];
982	dec->cur += 2;	1112	dec->cur += 2;
983		1113
984	return newSVnv (ecb_binary16_to_float (fp));	1114	return newSVnv (ecb_binary16_to_float (fp));
985	}	1115	}
986		1116
987	case 26:	1117	case MISC_FLOAT32:
988	{	1118	{
989	uint32_t fp;	1119	uint32_t fp;
990	WANT (4);	1120	WANT (4);
991	memcpy (&fp, dec->cur, 4);	1121	memcpy (&fp, dec->cur, 4);
992	dec->cur += 4;	1122	dec->cur += 4;
…		…
995	fp = ecb_bswap32 (fp);	1125	fp = ecb_bswap32 (fp);
996		1126
997	return newSVnv (ecb_binary32_to_float (fp));	1127	return newSVnv (ecb_binary32_to_float (fp));
998	}	1128	}
999		1129
1000	case 27:	1130	case MISC_FLOAT64:
1001	{	1131	{
1002	uint64_t fp;	1132	uint64_t fp;
1003	WANT (8);	1133	WANT (8);
1004	memcpy (&fp, dec->cur, 8);	1134	memcpy (&fp, dec->cur, 8);
1005	dec->cur += 8;	1135	dec->cur += 8;
…		…
1008	fp = ecb_bswap64 (fp);	1138	fp = ecb_bswap64 (fp);
1009		1139
1010	return newSVnv (ecb_binary64_to_double (fp));	1140	return newSVnv (ecb_binary64_to_double (fp));
1011	}	1141	}
1012		1142
1013	// 0..19 unassigned	1143	// 0..19 unassigned simple
1014	// 24 reserved + unassigned (reserved values are not encodable)	1144	// 24 reserved + unassigned simple (reserved values are not encodable)
		1145	// 28-30 unassigned misc
		1146	// 31 break code
1015	default:	1147	default:
1016	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1148	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1017	}	1149	}
1018		1150
1019	break;	1151	break;
1020	}	1152	}
1021		1153
…		…
1048	if (dec.cur != dec.end && !dec.err)	1180	if (dec.cur != dec.end && !dec.err)
1049	dec.err = "garbage after CBOR object";	1181	dec.err = "garbage after CBOR object";
1050		1182
1051	if (dec.err)	1183	if (dec.err)
1052	{	1184	{
		1185	if (dec.shareable)
		1186	{
		1187	// need to break cyclic links, which whould all be in shareable
		1188	int i;
		1189	SV **svp;
		1190
		1191	for (i = av_len (dec.shareable) + 1; i--; )
		1192	if ((svp = av_fetch (dec.shareable, i, 0)))
		1193	sv_setsv (*svp, &PL_sv_undef);
		1194	}
		1195
1053	SvREFCNT_dec (sv);	1196	SvREFCNT_dec (sv);
1054	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);	1197	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);
1055	}	1198	}
1056		1199
1057	sv = sv_2mortal (sv);	1200	sv = sv_2mortal (sv);
1058		1201
1059	return sv;	1202	return sv;
1060	}	1203	}
1061		1204
		1205	/////////////////////////////////////////////////////////////////////////////
		1206	// incremental parser
		1207
		1208	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1209
		1210	// returns 0 for notyet, 1 for success or error
		1211	static int
		1212	incr_parse (CBOR self, SV cborstr)
		1213	{
		1214	STRLEN cur;
		1215	SvPV (cborstr, cur);
		1216
		1217	while (ecb_expect_true (self->incr_need <= cur))
		1218	{
		1219	// table of integer count bytes
		1220	static I8 incr_len[MINOR_MASK + 1] = {
		1221	0, 0, 0, 0, 0, 0, 0, 0,
		1222	0, 0, 0, 0, 0, 0, 0, 0,
		1223	0, 0, 0, 0, 0, 0, 0, 0,
		1224	1, 2, 4, 8,-1,-1,-1,-2
		1225	};
		1226
		1227	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1228	U8 m = *p & MINOR_MASK;
		1229	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1230	I8 ilen = incr_len[m];
		1231
		1232	self->incr_need = self->incr_pos + 1;
		1233
		1234	if (ecb_expect_false (ilen < 0))
		1235	{
		1236	if (m != MINOR_INDEF)
		1237	return 1; // error
		1238
		1239	if (*p == (MAJOR_MISC \| MINOR_INDEF))
		1240	{
		1241	if (count >= 0)
		1242	return 1; // error
		1243
		1244	count = 1;
		1245	}
		1246	else
		1247	{
		1248	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1249	count = -1;
		1250	}
		1251	}
		1252	else
		1253	{
		1254	self->incr_need += ilen;
		1255	if (ecb_expect_false (self->incr_need > cur))
		1256	return 0;
		1257
		1258	int major = *p >> MAJOR_SHIFT;
		1259
		1260	switch (major)
		1261	{
		1262	case MAJOR_BYTES >> MAJOR_SHIFT:
		1263	case MAJOR_TEXT >> MAJOR_SHIFT:
		1264	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1265	case MAJOR_MAP >> MAJOR_SHIFT:
		1266	{
		1267	UV len;
		1268
		1269	if (ecb_expect_false (ilen))
		1270	{
		1271	len = 0;
		1272
		1273	do {
		1274	len = (len << 8) \| *++p;
		1275	} while (--ilen);
		1276	}
		1277	else
		1278	len = m;
		1279
		1280	switch (major)
		1281	{
		1282	case MAJOR_BYTES >> MAJOR_SHIFT:
		1283	case MAJOR_TEXT >> MAJOR_SHIFT:
		1284	self->incr_need += len;
		1285	if (ecb_expect_false (self->incr_need > cur))
		1286	return 0;
		1287
		1288	break;
		1289
		1290	case MAJOR_MAP >> MAJOR_SHIFT:
		1291	len <<= 1;
		1292	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1293	if (len)
		1294	{
		1295	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1296	count = len + 1;
		1297	}
		1298	break;
		1299	}
		1300	}
		1301	}
		1302	}
		1303
		1304	self->incr_pos = self->incr_need;
		1305
		1306	if (count > 0)
		1307	{
		1308	while (!--count)
		1309	{
		1310	if (!AvFILLp (self->incr_count))
		1311	return 1; // done
		1312
		1313	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1314	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1315	}
		1316
		1317	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1318	}
		1319	}
		1320
		1321	return 0;
		1322	}
		1323
		1324
1062	/////////////////////////////////////////////////////////////////////////////	1325	/////////////////////////////////////////////////////////////////////////////
1063	// XS interface functions	1326	// XS interface functions
1064		1327
1065	MODULE = CBOR::XS PACKAGE = CBOR::XS	1328	MODULE = CBOR::XS PACKAGE = CBOR::XS
1066		1329
…		…
1073	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);	1336	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);
1074		1337
1075	types_true = get_bool ("Types::Serialiser::true" );	1338	types_true = get_bool ("Types::Serialiser::true" );
1076	types_false = get_bool ("Types::Serialiser::false");	1339	types_false = get_bool ("Types::Serialiser::false");
1077	types_error = get_bool ("Types::Serialiser::error");	1340	types_error = get_bool ("Types::Serialiser::error");
		1341
		1342	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
1078		1343
1079	sv_cbor = newSVpv ("CBOR", 0);	1344	sv_cbor = newSVpv ("CBOR", 0);
1080	SvREADONLY_on (sv_cbor);	1345	SvREADONLY_on (sv_cbor);
1081	}	1346	}
1082		1347
…		…
1104	void shrink (CBOR *self, int enable = 1)	1369	void shrink (CBOR *self, int enable = 1)
1105	ALIAS:	1370	ALIAS:
1106	shrink = F_SHRINK	1371	shrink = F_SHRINK
1107	allow_unknown = F_ALLOW_UNKNOWN	1372	allow_unknown = F_ALLOW_UNKNOWN
1108	allow_sharing = F_ALLOW_SHARING	1373	allow_sharing = F_ALLOW_SHARING
		1374	allow_cycles = F_ALLOW_CYCLES
1109	dedup_strings = F_DEDUP_STRINGS	1375	pack_strings = F_PACK_STRINGS
		1376	validate_utf8 = F_VALIDATE_UTF8
1110	PPCODE:	1377	PPCODE:
1111	{	1378	{
1112	if (enable)	1379	if (enable)
1113	self->flags \|= ix;	1380	self->flags \|= ix;
1114	else	1381	else
…		…
1120	void get_shrink (CBOR *self)	1387	void get_shrink (CBOR *self)
1121	ALIAS:	1388	ALIAS:
1122	get_shrink = F_SHRINK	1389	get_shrink = F_SHRINK
1123	get_allow_unknown = F_ALLOW_UNKNOWN	1390	get_allow_unknown = F_ALLOW_UNKNOWN
1124	get_allow_sharing = F_ALLOW_SHARING	1391	get_allow_sharing = F_ALLOW_SHARING
		1392	get_allow_cycles = F_ALLOW_CYCLES
1125	get_dedup_strings = F_DEDUP_STRINGS	1393	get_pack_strings = F_PACK_STRINGS
		1394	get_validate_utf8 = F_VALIDATE_UTF8
1126	PPCODE:	1395	PPCODE:
1127	XPUSHs (boolSV (self->flags & ix));	1396	XPUSHs (boolSV (self->flags & ix));
1128		1397
1129	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1398	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1130	PPCODE:	1399	PPCODE:
…		…
1143	XPUSHs (ST (0));	1412	XPUSHs (ST (0));
1144		1413
1145	int get_max_size (CBOR *self)	1414	int get_max_size (CBOR *self)
1146	CODE:	1415	CODE:
1147	RETVAL = self->max_size;	1416	RETVAL = self->max_size;
		1417	OUTPUT:
		1418	RETVAL
		1419
		1420	void filter (CBOR self, SV filter = 0)
		1421	PPCODE:
		1422	SvREFCNT_dec (self->filter);
		1423	self->filter = filter ? newSVsv (filter) : filter;
		1424	XPUSHs (ST (0));
		1425
		1426	SV get_filter (CBOR self)
		1427	CODE:
		1428	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1148	OUTPUT:	1429	OUTPUT:
1149	RETVAL	1430	RETVAL
1150		1431
1151	void encode (CBOR self, SV scalar)	1432	void encode (CBOR self, SV scalar)
1152	PPCODE:	1433	PPCODE:
…		…
1167	EXTEND (SP, 2);	1448	EXTEND (SP, 2);
1168	PUSHs (sv);	1449	PUSHs (sv);
1169	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1450	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1170	}	1451	}
1171		1452
		1453	void incr_parse (CBOR self, SV cborstr)
		1454	ALIAS:
		1455	incr_parse_multiple = 1
		1456	PPCODE:
		1457	{
		1458	if (SvUTF8 (cborstr))
		1459	sv_utf8_downgrade (cborstr, 0);
		1460
		1461	if (!self->incr_count)
		1462	{
		1463	self->incr_count = newAV ();
		1464	self->incr_pos = 0;
		1465	self->incr_need = 1;
		1466
		1467	av_push (self->incr_count, newSViv (1));
		1468	}
		1469
		1470	do
		1471	{
		1472	if (!incr_parse (self, cborstr))
		1473	{
		1474	if (self->incr_need > self->max_size && self->max_size)
		1475	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1476	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1477
		1478	break;
		1479	}
		1480
		1481	SV *sv;
		1482	char *offset;
		1483
		1484	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1485	XPUSHs (sv);
		1486
		1487	sv_chop (cborstr, offset);
		1488
		1489	av_clear (self->incr_count);
		1490	av_push (self->incr_count, newSViv (1));
		1491
		1492	self->incr_pos = 0;
		1493	self->incr_need = self->incr_pos + 1;
		1494	}
		1495	while (ix);
		1496	}
		1497
		1498	void incr_reset (CBOR *self)
		1499	CODE:
		1500	{
		1501	SvREFCNT_dec (self->incr_count);
		1502	self->incr_count = 0;
		1503	}
		1504
		1505	void DESTROY (CBOR *self)
		1506	PPCODE:
		1507	cbor_free (self);
		1508
1172	PROTOTYPES: ENABLE	1509	PROTOTYPES: ENABLE
1173		1510
1174	void encode_cbor (SV *scalar)	1511	void encode_cbor (SV *scalar)
		1512	ALIAS:
		1513	encode_cbor = 0
		1514	encode_cbor_sharing = F_ALLOW_SHARING
1175	PPCODE:	1515	PPCODE:
1176	{	1516	{
1177	CBOR cbor;	1517	CBOR cbor;
1178	cbor_init (&cbor);	1518	cbor_init (&cbor);
		1519	cbor.flags \|= ix;
1179	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1520	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1180	XPUSHs (scalar);	1521	XPUSHs (scalar);
1181	}	1522	}
1182		1523
1183	void decode_cbor (SV *cborstr)	1524	void decode_cbor (SV *cborstr)

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Comparing CBOR-XS/XS.xs (file contents): Revision 1.22 by root, Wed Nov 20 15:05:46 2013 UTC vs. Revision 1.44 by root, Tue Feb 18 22:12:12 2014 UTC

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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.22 by root, Wed Nov 20 15:05:46 2013 UTC vs.
Revision 1.44 by root, Tue Feb 18 22:12:12 2014 UTC