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

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.18 by root, Wed Nov 20 01:09:46 2013 UTC vs.
Revision 1.37 by root, Sat Nov 30 18:13:53 2013 UTC

…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	20	#endif
21	#ifndef HvNAMEUTF8	21	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	22	# define HvNAMEUTF8(hv) 0
23	#endif	23	#endif
		24	#ifndef SvREFCNT_dec_NN
		25	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		26	#endif
		27
		28	// known major and minor types
		29	enum cbor_type
		30	{
		31	MAJOR_SHIFT = 5,
		32	MINOR_MASK = 0x1f,
		33
		34	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		35	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		36	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		37	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		38	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		39	MAJOR_MAP = 5 << MAJOR_SHIFT,
		40	MAJOR_TAG = 6 << MAJOR_SHIFT,
		41	MAJOR_MISC = 7 << MAJOR_SHIFT,
		42
		43	// INT/STRING/ARRAY/MAP subtypes
		44	LENGTH_EXT1 = 24,
		45	LENGTH_EXT2 = 25,
		46	LENGTH_EXT4 = 26,
		47	LENGTH_EXT8 = 27,
		48
		49	// SIMPLE types (effectively MISC subtypes)
		50	SIMPLE_FALSE = 20,
		51	SIMPLE_TRUE = 21,
		52	SIMPLE_NULL = 22,
		53	SIMPLE_UNDEF = 23,
		54
		55	// MISC subtype (unused)
		56	MISC_EXT1 = 24,
		57	MISC_FLOAT16 = 25,
		58	MISC_FLOAT32 = 26,
		59	MISC_FLOAT64 = 27,
		60
		61	// BYTES/TEXT/ARRAY/MAP
		62	MINOR_INDEF = 31,
		63	};
24		64
25	// known tags	65	// known tags
26	enum cbor_tag	66	enum cbor_tag
27	{	67	{
28	// inofficial extensions (pending iana registration)	68	// extensions
		69	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	70	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	71	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHARABLE = 26, // http://cbor.schmorp.de/value-sharing	72	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	73	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	74	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	75	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		76
37	// rfc7049	77	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	78	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	79	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	80	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	81	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	82	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	83	CBOR_TAG_BIGFLOAT = 5, // array
44		84
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	85	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	86	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	87	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	88	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		89
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	90	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	91	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	92	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	93	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	94	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		95
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	96	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	97	};
58		98
59	#define F_SHRINK 0x00000001UL	99	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	100	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	101	#define F_ALLOW_SHARING 0x00000004UL
		102	#define F_ALLOW_CYCLES 0x00000008UL
62	#define F_DEDUP_STRINGS 0x00000008UL //TODO	103	#define F_PACK_STRINGS 0x00000010UL
63	#define F_DEDUP_KEYS 0x00000010UL //TODO
64		104
65	#define INIT_SIZE 32 // initial scalar size to be allocated	105	#define INIT_SIZE 32 // initial scalar size to be allocated
66		106
67	#define SB do {	107	#define SB do {
68	#define SE } while (0)	108	#define SE } while (0)
…		…
80	# define CBOR_SLOW 0	120	# define CBOR_SLOW 0
81	# define CBOR_STASH cbor_stash	121	# define CBOR_STASH cbor_stash
82	#endif	122	#endif
83		123
84	static HV cbor_stash, types_boolean_stash, types_error_stash, cbor_tagged_stash; // CBOR::XS::	124	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;	125	static SV types_true, types_false, types_error, sv_cbor, *default_filter;
86		126
87	typedef struct {	127	typedef struct {
88	U32 flags;	128	U32 flags;
89	U32 max_depth;	129	U32 max_depth;
90	STRLEN max_size;	130	STRLEN max_size;
		131	SV *filter;
91	} CBOR;	132	} CBOR;
92		133
93	ecb_inline void	134	ecb_inline void
94	cbor_init (CBOR *cbor)	135	cbor_init (CBOR *cbor)
95	{	136	{
96	Zero (cbor, 1, CBOR);	137	Zero (cbor, 1, CBOR);
97	cbor->max_depth = 512;	138	cbor->max_depth = 512;
		139	}
		140
		141	ecb_inline void
		142	cbor_free (CBOR *cbor)
		143	{
		144	SvREFCNT_dec (cbor->filter);
98	}	145	}
99		146
100	/////////////////////////////////////////////////////////////////////////////	147	/////////////////////////////////////////////////////////////////////////////
101	// utility functions	148	// utility functions
102		149
…		…
124	SvPV_renew (sv, SvCUR (sv) + 1);	171	SvPV_renew (sv, SvCUR (sv) + 1);
125	#endif	172	#endif
126	}	173	}
127	}	174	}
128		175
		176	// minimum length of a string to be registered for stringref
		177	ecb_inline int
		178	minimum_string_length (UV idx)
		179	{
		180	return idx > 23
		181	? idx > 0xffU
		182	? idx > 0xffffU
		183	? idx > 0xffffffffU
		184	? 11
		185	: 7
		186	: 5
		187	: 4
		188	: 3;
		189	}
		190
129	/////////////////////////////////////////////////////////////////////////////	191	/////////////////////////////////////////////////////////////////////////////
130	// encoder	192	// encoder
131		193
132	// structure used for encoding CBOR	194	// structure used for encoding CBOR
133	typedef struct	195	typedef struct
…		…
135	char *cur; // SvPVX (sv) + current output position	197	char *cur; // SvPVX (sv) + current output position
136	char *end; // SvEND (sv)	198	char *end; // SvEND (sv)
137	SV *sv; // result scalar	199	SV *sv; // result scalar
138	CBOR cbor;	200	CBOR cbor;
139	U32 depth; // recursion level	201	U32 depth; // recursion level
140	HV *stringref; // string => index, or 0	202	HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8)
		203	UV stringref_idx;
141	HV *sharable; // ptr => index, or 0	204	HV *shareable; // ptr => index, or 0
142	HV *sharable_idx;	205	UV shareable_idx;
143	} enc_t;	206	} enc_t;
144		207
145	ecb_inline void	208	ecb_inline void
146	need (enc_t *enc, STRLEN len)	209	need (enc_t *enc, STRLEN len)
147	{	210	{
…		…
164	static void	227	static void
165	encode_uint (enc_t *enc, int major, UV len)	228	encode_uint (enc_t *enc, int major, UV len)
166	{	229	{
167	need (enc, 9);	230	need (enc, 9);
168		231
169	if (len < 24)	232	if (ecb_expect_true (len < LENGTH_EXT1))
170	*enc->cur++ = major \| len;	233	*enc->cur++ = major \| len;
171	else if (len <= 0xff)	234	else if (ecb_expect_true (len <= 0xffU))
172	{	235	{
173	*enc->cur++ = major \| 24;	236	*enc->cur++ = major \| LENGTH_EXT1;
174	*enc->cur++ = len;	237	*enc->cur++ = len;
175	}	238	}
176	else if (len <= 0xffff)	239	else if (len <= 0xffffU)
177	{	240	{
178	*enc->cur++ = major \| 25;	241	*enc->cur++ = major \| LENGTH_EXT2;
179	*enc->cur++ = len >> 8;	242	*enc->cur++ = len >> 8;
180	*enc->cur++ = len;	243	*enc->cur++ = len;
181	}	244	}
182	else if (len <= 0xffffffff)	245	else if (len <= 0xffffffffU)
183	{	246	{
184	*enc->cur++ = major \| 26;	247	*enc->cur++ = major \| LENGTH_EXT4;
185	*enc->cur++ = len >> 24;	248	*enc->cur++ = len >> 24;
186	*enc->cur++ = len >> 16;	249	*enc->cur++ = len >> 16;
187	*enc->cur++ = len >> 8;	250	*enc->cur++ = len >> 8;
188	*enc->cur++ = len;	251	*enc->cur++ = len;
189	}	252	}
190	else	253	else
191	{	254	{
192	*enc->cur++ = major \| 27;	255	*enc->cur++ = major \| LENGTH_EXT8;
193	*enc->cur++ = len >> 56;	256	*enc->cur++ = len >> 56;
194	*enc->cur++ = len >> 48;	257	*enc->cur++ = len >> 48;
195	*enc->cur++ = len >> 40;	258	*enc->cur++ = len >> 40;
196	*enc->cur++ = len >> 32;	259	*enc->cur++ = len >> 32;
197	*enc->cur++ = len >> 24;	260	*enc->cur++ = len >> 24;
…		…
199	*enc->cur++ = len >> 8;	262	*enc->cur++ = len >> 8;
200	*enc->cur++ = len;	263	*enc->cur++ = len;
201	}	264	}
202	}	265	}
203		266
204	static void	267	ecb_inline void
		268	encode_tag (enc_t *enc, UV tag)
		269	{
		270	encode_uint (enc, MAJOR_TAG, tag);
		271	}
		272
		273	ecb_inline void
205	encode_str (enc_t enc, int utf8, char str, STRLEN len)	274	encode_str (enc_t enc, int utf8, char str, STRLEN len)
206	{	275	{
207	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	276	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
208	need (enc, len);	277	need (enc, len);
209	memcpy (enc->cur, str, len);	278	memcpy (enc->cur, str, len);
210	enc->cur += len;	279	enc->cur += len;
211	}	280	}
212		281
213	ecb_inline void
214	encode_tag (enc_t *enc, UV tag)
215	{
216	encode_uint (enc, 0xc0, tag);
217	}
218
219	static int	282	static void
220	encode_sharable2 (enc_t enc, SV sv)	283	encode_strref (enc_t enc, int utf8, char str, STRLEN len)
221	{	284	{
222	if (!enc->sharable)	285	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
223	enc->sharable = (HV )sv_2mortal ((SV )newHV ());	286	{
		287	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
224		288
225	SV **svp = hv_fetch (enc->sharable, &sv, sizeof (sv), 1);
226
227	if (SvOK (*svp))	289	if (SvOK (*svp))
228	{	290	{
		291	// already registered, use stringref
229	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);	292	encode_tag (enc, CBOR_TAG_STRINGREF);
230	encode_uint (enc, 0x00, SvUV (*svp));	293	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
231
232	return 1;	294	return;
233	}	295	}
234	else	296	else if (len >= minimum_string_length (enc->stringref_idx))
235	{	297	{
		298	// register only
236	sv_setuv (*svp, enc->sharable_idx++);	299	sv_setuv (*svp, enc->stringref_idx);
237	encode_tag (enc, CBOR_TAG_VALUE_SHARABLE);	300	++enc->stringref_idx;
238		301	}
239	return 0;
240	}	302	}
241	}
242		303
243	ecb_inline int	304	encode_str (enc, utf8, str, len);
244	encode_sharable (enc_t enc, SV sv)
245	{
246	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
247	&& ecb_expect_false (SvREFCNT (sv) > 1))
248	return encode_sharable2 (enc, sv);
249
250	return 0;
251	}	305	}
252		306
253	static void encode_sv (enc_t enc, SV sv);	307	static void encode_sv (enc_t enc, SV sv);
254		308
255	static void	309	static void
…		…
260	if (enc->depth >= enc->cbor.max_depth)	314	if (enc->depth >= enc->cbor.max_depth)
261	croak (ERR_NESTING_EXCEEDED);	315	croak (ERR_NESTING_EXCEEDED);
262		316
263	++enc->depth;	317	++enc->depth;
264		318
265	encode_uint (enc, 0x80, len + 1);	319	encode_uint (enc, MAJOR_ARRAY, len + 1);
266		320
267	for (i = 0; i <= len; ++i)	321	for (i = 0; i <= len; ++i)
268	{	322	{
269	SV **svp = av_fetch (av, i, 0);	323	SV **svp = av_fetch (av, i, 0);
270	encode_sv (enc, svp ? *svp : &PL_sv_undef);	324	encode_sv (enc, svp ? *svp : &PL_sv_undef);
…		…
285		339
286	int pairs = hv_iterinit (hv);	340	int pairs = hv_iterinit (hv);
287	int mg = SvMAGICAL (hv);	341	int mg = SvMAGICAL (hv);
288		342
289	if (mg)	343	if (mg)
290	encode_ch (enc, 0xa0 \| 31);	344	encode_ch (enc, MAJOR_MAP \| MINOR_INDEF);
291	else	345	else
292	encode_uint (enc, 0xa0, pairs);	346	encode_uint (enc, MAJOR_MAP, pairs);
293		347
294	while ((he = hv_iternext (hv)))	348	while ((he = hv_iternext (hv)))
295	{	349	{
296	if (HeKLEN (he) == HEf_SVKEY)	350	if (HeKLEN (he) == HEf_SVKEY)
297	encode_sv (enc, HeSVKEY (he));	351	encode_sv (enc, HeSVKEY (he));
298	else	352	else
299	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	353	encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
300		354
301	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	355	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
302	}	356	}
303		357
304	if (mg)	358	if (mg)
305	encode_ch (enc, 0xe0 \| 31);	359	encode_ch (enc, MAJOR_MISC \| MINOR_INDEF);
306		360
307	--enc->depth;	361	--enc->depth;
308	}	362	}
309		363
310	// encode objects, arrays and special \0=false and \1=true values.	364	// encode objects, arrays and special \0=false and \1=true values.
311	static void	365	static void
312	encode_rv (enc_t enc, SV sv)	366	encode_rv (enc_t enc, SV sv)
313	{	367	{
314	svtype svt;
315
316	SvGETMAGIC (sv);	368	SvGETMAGIC (sv);
		369
317	svt = SvTYPE (sv);	370	svtype svt = SvTYPE (sv);
318
319	if (encode_sharable (enc, sv))
320	return;
321		371
322	if (ecb_expect_false (SvOBJECT (sv)))	372	if (ecb_expect_false (SvOBJECT (sv)))
323	{	373	{
324	HV *boolean_stash = !CBOR_SLOW \|\| types_boolean_stash	374	HV *boolean_stash = !CBOR_SLOW \|\| types_boolean_stash
325	? types_boolean_stash	375	? types_boolean_stash
…		…
330	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	380	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
331	? cbor_tagged_stash	381	? cbor_tagged_stash
332	: gv_stashpv ("CBOR::XS::Tagged" , 1);	382	: gv_stashpv ("CBOR::XS::Tagged" , 1);
333		383
334	HV *stash = SvSTASH (sv);	384	HV *stash = SvSTASH (sv);
335	GV *method;
336		385
337	if (stash == boolean_stash)	386	if (stash == boolean_stash)
338	encode_ch (enc, SvIV (sv) ? 0xe0 \| 21 : 0xe0 \| 20);	387	{
		388	encode_ch (enc, SvIV (sv) ? MAJOR_MISC \| SIMPLE_TRUE : MAJOR_MISC \| SIMPLE_FALSE);
		389	return;
		390	}
339	else if (stash == error_stash)	391	else if (stash == error_stash)
340	encode_ch (enc, 0xe0 \| 23);	392	{
		393	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
		394	return;
		395	}
341	else if (stash == tagged_stash)	396	else if (stash == tagged_stash)
342	{	397	{
343	if (svt != SVt_PVAV)	398	if (svt != SVt_PVAV)
344	croak ("encountered CBOR::XS::Tagged object that isn't an array");	399	croak ("encountered CBOR::XS::Tagged object that isn't an array");
345		400
346	encode_uint (enc, 0xc0, SvUV (av_fetch ((AV )sv, 0, 1)));	401	encode_uint (enc, MAJOR_TAG, SvUV (av_fetch ((AV )sv, 0, 1)));
347	encode_sv (enc, av_fetch ((AV )sv, 1, 1));	402	encode_sv (enc, av_fetch ((AV )sv, 1, 1));
		403
		404	return;
		405	}
		406	}
		407
		408	if (ecb_expect_false (SvREFCNT (sv) > 1)
		409	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		410	{
		411	if (!enc->shareable)
		412	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
		413
		414	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
		415
		416	if (SvOK (*svp))
348	}	417	{
		418	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		419	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		420	return;
		421	}
		422	else
		423	{
		424	sv_setuv (*svp, enc->shareable_idx);
		425	++enc->shareable_idx;
		426	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		427	}
		428	}
		429
		430	if (ecb_expect_false (SvOBJECT (sv)))
		431	{
		432	HV *stash = SvSTASH (sv);
		433	GV *method;
		434
349	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	435	if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
350	{	436	{
351	dSP;	437	dSP;
352		438
353	ENTER; SAVETMPS; PUSHMARK (SP);	439	ENTER; SAVETMPS; PUSHMARK (SP);
354	// we re-bless the reference to get overload and other niceties right	440	// we re-bless the reference to get overload and other niceties right
…		…
386	// catch this surprisingly common error	472	// catch this surprisingly common error
387	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	473	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
388	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	474	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
389		475
390	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	476	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
391	encode_uint (enc, 0x80, count + 1);	477	encode_uint (enc, MAJOR_ARRAY, count + 1);
392	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	478	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
393		479
394	while (count)	480	while (count)
395	encode_sv (enc, SP[1 - count--]);	481	encode_sv (enc, SP[1 - count--]);
396		482
397	PUTBACK;	483	PUTBACK;
…		…
418	{	504	{
419	double nv = SvNVX (sv);	505	double nv = SvNVX (sv);
420		506
421	need (enc, 9);	507	need (enc, 9);
422		508
423	if (ecb_expect_false (nv == (U32)nv))	509	if (ecb_expect_false (nv == (NV)(U32)nv))
424	encode_uint (enc, 0x00, (U32)nv);	510	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
425	//TODO: maybe I32?	511	//TODO: maybe I32?
426	else if (ecb_expect_false (nv == (float)nv))	512	else if (ecb_expect_false (nv == (float)nv))
427	{	513	{
428	uint32_t fp = ecb_float_to_binary32 (nv);	514	uint32_t fp = ecb_float_to_binary32 (nv);
429		515
430	*enc->cur++ = 0xe0 \| 26;	516	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT32;
431		517
432	if (!ecb_big_endian ())	518	if (!ecb_big_endian ())
433	fp = ecb_bswap32 (fp);	519	fp = ecb_bswap32 (fp);
434		520
435	memcpy (enc->cur, &fp, 4);	521	memcpy (enc->cur, &fp, 4);
…		…
437	}	523	}
438	else	524	else
439	{	525	{
440	uint64_t fp = ecb_double_to_binary64 (nv);	526	uint64_t fp = ecb_double_to_binary64 (nv);
441		527
442	*enc->cur++ = 0xe0 \| 27;	528	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT64;
443		529
444	if (!ecb_big_endian ())	530	if (!ecb_big_endian ())
445	fp = ecb_bswap64 (fp);	531	fp = ecb_bswap64 (fp);
446		532
447	memcpy (enc->cur, &fp, 8);	533	memcpy (enc->cur, &fp, 8);
…		…
452	static void	538	static void
453	encode_sv (enc_t enc, SV sv)	539	encode_sv (enc_t enc, SV sv)
454	{	540	{
455	SvGETMAGIC (sv);	541	SvGETMAGIC (sv);
456		542
457	if (encode_sharable (enc, sv))
458	return;
459
460	if (SvPOKp (sv))	543	if (SvPOKp (sv))
461	{	544	{
462	STRLEN len;	545	STRLEN len;
463	char *str = SvPV (sv, len);	546	char *str = SvPV (sv, len);
464	encode_str (enc, SvUTF8 (sv), str, len);	547	encode_strref (enc, SvUTF8 (sv), str, len);
465	}	548	}
466	else if (SvNOKp (sv))	549	else if (SvNOKp (sv))
467	encode_nv (enc, sv);	550	encode_nv (enc, sv);
468	else if (SvIOKp (sv))	551	else if (SvIOKp (sv))
469	{	552	{
470	if (SvIsUV (sv))	553	if (SvIsUV (sv))
471	encode_uint (enc, 0x00, SvUVX (sv));	554	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
472	else if (SvIVX (sv) >= 0)	555	else if (SvIVX (sv) >= 0)
473	encode_uint (enc, 0x00, SvIVX (sv));	556	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
474	else	557	else
475	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	558	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
476	}	559	}
477	else if (SvROK (sv))	560	else if (SvROK (sv))
478	encode_rv (enc, SvRV (sv));	561	encode_rv (enc, SvRV (sv));
479	else if (!SvOK (sv))	562	else if (!SvOK (sv))
480	encode_ch (enc, 0xe0 \| 22);	563	encode_ch (enc, MAJOR_MISC \| SIMPLE_NULL);
481	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	564	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
482	encode_ch (enc, 0xe0 \| 23);	565	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
483	else	566	else
484	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	567	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
485	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	568	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
486	}	569	}
487		570
…		…
494	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	577	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
495	enc.cur = SvPVX (enc.sv);	578	enc.cur = SvPVX (enc.sv);
496	enc.end = SvEND (enc.sv);	579	enc.end = SvEND (enc.sv);
497		580
498	SvPOK_only (enc.sv);	581	SvPOK_only (enc.sv);
		582
		583	if (cbor->flags & F_PACK_STRINGS)
		584	{
		585	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
		586	enc.stringref[0]= (HV )sv_2mortal ((SV )newHV ());
		587	enc.stringref[1]= (HV )sv_2mortal ((SV )newHV ());
		588	}
		589
499	encode_sv (&enc, scalar);	590	encode_sv (&enc, scalar);
500		591
501	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	592	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
502	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	593	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
503		594
…		…
517	U8 *end; // end of input string	608	U8 *end; // end of input string
518	const char *err; // parse error, if != 0	609	const char *err; // parse error, if != 0
519	CBOR cbor;	610	CBOR cbor;
520	U32 depth; // recursion depth	611	U32 depth; // recursion depth
521	U32 maxdepth; // recursion depth limit	612	U32 maxdepth; // recursion depth limit
522	AV *sharable;	613	AV *shareable;
		614	AV *stringref;
		615	SV *decode_tagged;
523	} dec_t;	616	} dec_t;
524		617
525	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	618	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE
526		619
527	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	620	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")
…		…
530	#define DEC_DEC_DEPTH --dec->depth	623	#define DEC_DEC_DEPTH --dec->depth
531		624
532	static UV	625	static UV
533	decode_uint (dec_t *dec)	626	decode_uint (dec_t *dec)
534	{	627	{
535	switch (*dec->cur & 31)	628	U8 m = *dec->cur & MINOR_MASK;
536	{	629	++dec->cur;
537	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
538	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
539	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
540	return *dec->cur++ & 31;
541		630
542	case 24:	631	if (ecb_expect_true (m < LENGTH_EXT1))
		632	return m;
		633	else if (ecb_expect_true (m == LENGTH_EXT1))
		634	{
543	WANT (2);	635	WANT (1);
544	dec->cur += 2;	636	dec->cur += 1;
545	return dec->cur[-1];	637	return dec->cur[-1];
546		638	}
547	case 25:	639	else if (ecb_expect_true (m == LENGTH_EXT2))
		640	{
548	WANT (3);	641	WANT (2);
549	dec->cur += 3;	642	dec->cur += 2;
550	return (((UV)dec->cur[-2]) << 8)	643	return (((UV)dec->cur[-2]) << 8)
551	\| ((UV)dec->cur[-1]);	644	\| ((UV)dec->cur[-1]);
552		645	}
553	case 26:	646	else if (ecb_expect_true (m == LENGTH_EXT4))
		647	{
554	WANT (5);	648	WANT (4);
555	dec->cur += 5;	649	dec->cur += 4;
556	return (((UV)dec->cur[-4]) << 24)	650	return (((UV)dec->cur[-4]) << 24)
557	\| (((UV)dec->cur[-3]) << 16)	651	\| (((UV)dec->cur[-3]) << 16)
558	\| (((UV)dec->cur[-2]) << 8)	652	\| (((UV)dec->cur[-2]) << 8)
559	\| ((UV)dec->cur[-1]);	653	\| ((UV)dec->cur[-1]);
560		654	}
561	case 27:	655	else if (ecb_expect_true (m == LENGTH_EXT8))
		656	{
562	WANT (9);	657	WANT (8);
563	dec->cur += 9;	658	dec->cur += 8;
		659
		660	return
		661	#if UVSIZE < 8
		662	0
		663	#else
564	return (((UV)dec->cur[-8]) << 56)	664	(((UV)dec->cur[-8]) << 56)
565	\| (((UV)dec->cur[-7]) << 48)	665	\| (((UV)dec->cur[-7]) << 48)
566	\| (((UV)dec->cur[-6]) << 40)	666	\| (((UV)dec->cur[-6]) << 40)
567	\| (((UV)dec->cur[-5]) << 32)	667	\| (((UV)dec->cur[-5]) << 32)
		668	#endif
568	\| (((UV)dec->cur[-4]) << 24)	669	\| (((UV)dec->cur[-4]) << 24)
569	\| (((UV)dec->cur[-3]) << 16)	670	\| (((UV)dec->cur[-3]) << 16)
570	\| (((UV)dec->cur[-2]) << 8)	671	\| (((UV)dec->cur[-2]) << 8)
571	\| ((UV)dec->cur[-1]);	672	\| ((UV)dec->cur[-1]);
572		673	}
573	default:	674	else
574	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	675	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
575	}
576		676
577	fail:	677	fail:
578	return 0;	678	return 0;
579	}	679	}
580		680
…		…
585	{	685	{
586	AV *av = newAV ();	686	AV *av = newAV ();
587		687
588	DEC_INC_DEPTH;	688	DEC_INC_DEPTH;
589		689
590	if ((*dec->cur & 31) == 31)	690	if (*dec->cur == (MAJOR_ARRAY \| MINOR_INDEF))
591	{	691	{
592	++dec->cur;	692	++dec->cur;
593		693
594	for (;;)	694	for (;;)
595	{	695	{
596	WANT (1);	696	WANT (1);
597		697
598	if (*dec->cur == (0xe0 \| 31))	698	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
599	{	699	{
600	++dec->cur;	700	++dec->cur;
601	break;	701	break;
602	}	702	}
603		703
…		…
606	}	706	}
607	else	707	else
608	{	708	{
609	int i, len = decode_uint (dec);	709	int i, len = decode_uint (dec);
610		710
		711	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
611	av_fill (av, len - 1);	712	av_fill (av, len - 1);
612		713
613	for (i = 0; i < len; ++i)	714	for (i = 0; i < len; ++i)
614	AvARRAY (av)[i] = decode_sv (dec);	715	AvARRAY (av)[i] = decode_sv (dec);
615	}	716	}
…		…
625		726
626	static void	727	static void
627	decode_he (dec_t dec, HV hv)	728	decode_he (dec_t dec, HV hv)
628	{	729	{
629	// for speed reasons, we specialcase single-string	730	// for speed reasons, we specialcase single-string
630	// byte or utf-8 strings as keys.	731	// byte or utf-8 strings as keys, but only when !stringref
631		732
632	if (dec->cur >= 0x40 && dec->cur <= 0x40 + 27)	733	if (ecb_expect_true (!dec->stringref))
		734	if (ecb_expect_true ((*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
633	{	735	{
634	I32 len = decode_uint (dec);	736	I32 len = decode_uint (dec);
635	char key = (char )dec->cur;	737	char key = (char )dec->cur;
636		738
637	dec->cur += len;	739	dec->cur += len;
638		740
		741	if (ecb_expect_false (dec->stringref))
		742	av_push (dec->stringref, newSVpvn (key, len));
		743
639	hv_store (hv, key, len, decode_sv (dec), 0);	744	hv_store (hv, key, len, decode_sv (dec), 0);
		745
		746	return;
640	}	747	}
641	else if (dec->cur >= 0x60 && dec->cur <= 0x60 + 27)	748	else if (ecb_expect_true ((*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
642	{	749	{
643	I32 len = decode_uint (dec);	750	I32 len = decode_uint (dec);
644	char key = (char )dec->cur;	751	char key = (char )dec->cur;
645		752
646	dec->cur += len;	753	dec->cur += len;
647		754
		755	if (ecb_expect_false (dec->stringref))
		756	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));
		757
648	hv_store (hv, key, -len, decode_sv (dec), 0);	758	hv_store (hv, key, -len, decode_sv (dec), 0);
		759
		760	return;
649	}	761	}
650	else	762
651	{
652	SV *k = decode_sv (dec);	763	SV *k = decode_sv (dec);
653	SV *v = decode_sv (dec);	764	SV *v = decode_sv (dec);
654		765
655	hv_store_ent (hv, k, v, 0);	766	hv_store_ent (hv, k, v, 0);
656	SvREFCNT_dec (k);	767	SvREFCNT_dec (k);
657	}
658	}	768	}
659		769
660	static SV *	770	static SV *
661	decode_hv (dec_t *dec)	771	decode_hv (dec_t *dec)
662	{	772	{
663	HV *hv = newHV ();	773	HV *hv = newHV ();
664		774
665	DEC_INC_DEPTH;	775	DEC_INC_DEPTH;
666		776
667	if ((*dec->cur & 31) == 31)	777	if (*dec->cur == (MAJOR_MAP \| MINOR_INDEF))
668	{	778	{
669	++dec->cur;	779	++dec->cur;
670		780
671	for (;;)	781	for (;;)
672	{	782	{
673	WANT (1);	783	WANT (1);
674		784
675	if (*dec->cur == (0xe0 \| 31))	785	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
676	{	786	{
677	++dec->cur;	787	++dec->cur;
678	break;	788	break;
679	}	789	}
680		790
…		…
701	static SV *	811	static SV *
702	decode_str (dec_t *dec, int utf8)	812	decode_str (dec_t *dec, int utf8)
703	{	813	{
704	SV *sv = 0;	814	SV *sv = 0;
705		815
706	if ((*dec->cur & 31) == 31)	816	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
707	{	817	{
		818	// indefinite length strings
708	++dec->cur;	819	++dec->cur;
709		820
		821	U8 major = *dec->cur & MAJOR_MISC;
		822
710	sv = newSVpvn ("", 0);	823	sv = newSVpvn ("", 0);
711		824
712	// not very fast, and certainly not robust against illegal input
713	for (;;)	825	for (;;)
714	{	826	{
715	WANT (1);	827	WANT (1);
716		828
717	if (*dec->cur == (0xe0 \| 31))	829	if ((*dec->cur - major) > LENGTH_EXT8)
		830	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
718	{	831	{
719	++dec->cur;	832	++dec->cur;
720	break;	833	break;
721	}	834	}
		835	else
		836	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
722		837
723	sv_catsv (sv, decode_sv (dec));	838	STRLEN len = decode_uint (dec);
		839
		840	WANT (len);
		841	sv_catpvn (sv, dec->cur, len);
		842	dec->cur += len;
724	}	843	}
725	}	844	}
726	else	845	else
727	{	846	{
728	STRLEN len = decode_uint (dec);	847	STRLEN len = decode_uint (dec);
729		848
730	WANT (len);	849	WANT (len);
731	sv = newSVpvn (dec->cur, len);	850	sv = newSVpvn (dec->cur, len);
732	dec->cur += len;	851	dec->cur += len;
		852
		853	if (ecb_expect_false (dec->stringref)
		854	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		855	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
733	}	856	}
734		857
735	if (utf8)	858	if (utf8)
736	SvUTF8_on (sv);	859	SvUTF8_on (sv);
737		860
…		…
743	}	866	}
744		867
745	static SV *	868	static SV *
746	decode_tagged (dec_t *dec)	869	decode_tagged (dec_t *dec)
747	{	870	{
		871	SV *sv = 0;
748	UV tag = decode_uint (dec);	872	UV tag = decode_uint (dec);
749	SV *sv = decode_sv (dec);	873
		874	WANT (1);
750		875
751	switch (tag)	876	switch (tag)
752	{	877	{
753	case CBOR_TAG_MAGIC:	878	case CBOR_TAG_MAGIC:
754	return sv;	879	sv = decode_sv (dec);
		880	break;
755		881
756	case CBOR_TAG_INDIRECTION:	882	case CBOR_TAG_INDIRECTION:
757	return newRV_noinc (sv);	883	sv = newRV_noinc (decode_sv (dec));
		884	break;
758		885
		886	case CBOR_TAG_STRINGREF_NAMESPACE:
		887	{
		888	ENTER; SAVETMPS;
		889
		890	SAVESPTR (dec->stringref);
		891	dec->stringref = (AV )sv_2mortal ((SV )newAV ());
		892
		893	sv = decode_sv (dec);
		894
		895	FREETMPS; LEAVE;
		896	}
		897	break;
		898
		899	case CBOR_TAG_STRINGREF:
		900	{
		901	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
		902	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
		903
		904	UV idx = decode_uint (dec);
		905
		906	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))
		907	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
		908
		909	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
		910	}
		911	break;
		912
759	case CBOR_TAG_VALUE_SHARABLE:	913	case CBOR_TAG_VALUE_SHAREABLE:
		914	{
760	if (ecb_expect_false (!dec->sharable))	915	if (ecb_expect_false (!dec->shareable))
761	dec->sharable = (AV )sv_2mortal ((SV )newAV ());	916	dec->shareable = (AV )sv_2mortal ((SV )newAV ());
762		917
		918	if (dec->cbor.flags & F_ALLOW_CYCLES)
		919	{
		920	sv = newSV (0);
763	av_push (dec->sharable, SvREFCNT_inc_NN (sv));	921	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
764		922
765	return sv;	923	SV *osv = decode_sv (dec);
		924	sv_setsv (sv, osv);
		925	SvREFCNT_dec_NN (osv);
		926	}
		927	else
		928	{
		929	av_push (dec->shareable, &PL_sv_undef);
		930	int idx = AvFILLp (dec->shareable);
		931	sv = decode_sv (dec);
		932	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		933	}
		934	}
		935	break;
766		936
767	case CBOR_TAG_VALUE_SHAREDREF:	937	case CBOR_TAG_VALUE_SHAREDREF:
768	{	938	{
769	// TODO: should verify that the sv atcually was a CBOR unsigned integer	939	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
770	UV idx = SvUV (sv);	940	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
771		941
		942	UV idx = decode_uint (dec);
		943
772	if (!dec->sharable \|\| idx > AvFILLp (dec->sharable))	944	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))
773	ERR ("corrupted CBOR data (sharedref index out of bounds)");	945	ERR ("corrupted CBOR data (sharedref index out of bounds)");
774		946
775	SvREFCNT_dec (sv);
776
777	return SvREFCNT_inc_NN (AvARRAY (dec->sharable)[idx]);	947	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		948
		949	if (sv == &PL_sv_undef)
		950	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
778	}	951	}
		952	break;
779		953
780	case CBOR_TAG_PERL_OBJECT:	954	case CBOR_TAG_PERL_OBJECT:
781	{	955	{
		956	sv = decode_sv (dec);
		957
782	if (!SvROK (sv) \|\| SvTYPE (SvRV (sv)) != SVt_PVAV)	958	if (!SvROK (sv) \|\| SvTYPE (SvRV (sv)) != SVt_PVAV)
783	ERR ("corrupted CBOR data (non-array perl object)");	959	ERR ("corrupted CBOR data (non-array perl object)");
784		960
785	AV av = (AV )SvRV (sv);	961	AV av = (AV )SvRV (sv);
786	int len = av_len (av) + 1;	962	int len = av_len (av) + 1;
…		…
821	sv = SvREFCNT_inc (POPs);	997	sv = SvREFCNT_inc (POPs);
822		998
823	PUTBACK;	999	PUTBACK;
824		1000
825	FREETMPS; LEAVE;	1001	FREETMPS; LEAVE;
826
827	return sv;
828	}	1002	}
		1003	break;
829		1004
830	default:	1005	default:
831	{	1006	{
		1007	sv = decode_sv (dec);
		1008
		1009	dSP;
		1010	ENTER; SAVETMPS; PUSHMARK (SP);
		1011	EXTEND (SP, 2);
		1012	PUSHs (newSVuv (tag));
		1013	PUSHs (sv);
		1014
		1015	PUTBACK;
		1016	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY \| G_EVAL);
		1017	SPAGAIN;
		1018
		1019	if (SvTRUE (ERRSV))
		1020	{
		1021	FREETMPS; LEAVE;
		1022	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));
		1023	}
		1024
		1025	if (count)
		1026	{
		1027	SvREFCNT_dec (sv);
		1028	sv = SvREFCNT_inc (POPs);
		1029	}
		1030	else
		1031	{
832	AV *av = newAV ();	1032	AV *av = newAV ();
833	av_push (av, newSVuv (tag));	1033	av_push (av, newSVuv (tag));
834	av_push (av, sv);	1034	av_push (av, sv);
835		1035
836	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	1036	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
837	? cbor_tagged_stash	1037	? cbor_tagged_stash
838	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1038	: gv_stashpv ("CBOR::XS::Tagged" , 1);
839
840	return sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1039	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
841	}	1040	}
		1041
		1042	PUTBACK;
		1043
		1044	FREETMPS; LEAVE;
		1045	}
		1046	break;
842	}	1047	}
		1048
		1049	return sv;
843		1050
844	fail:	1051	fail:
845	SvREFCNT_dec (sv);	1052	SvREFCNT_dec (sv);
846	return &PL_sv_undef;	1053	return &PL_sv_undef;
847	}	1054	}
…		…
849	static SV *	1056	static SV *
850	decode_sv (dec_t *dec)	1057	decode_sv (dec_t *dec)
851	{	1058	{
852	WANT (1);	1059	WANT (1);
853		1060
854	switch (*dec->cur >> 5)	1061	switch (*dec->cur >> MAJOR_SHIFT)
855	{	1062	{
856	case 0: // unsigned int	1063	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
857	return newSVuv (decode_uint (dec));	1064	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
858	case 1: // negative int	1065	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
859	return newSViv (-1 - (IV)decode_uint (dec));	1066	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
860	case 2: // octet string	1067	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
861	return decode_str (dec, 0);	1068	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
862	case 3: // utf-8 string	1069	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
863	return decode_str (dec, 1);	1070
864	case 4: // array	1071	case MAJOR_MISC >> MAJOR_SHIFT:
865	return decode_av (dec);
866	case 5: // map
867	return decode_hv (dec);
868	case 6: // tag
869	return decode_tagged (dec);
870	case 7: // misc
871	switch (*dec->cur++ & 31)	1072	switch (*dec->cur++ & MINOR_MASK)
872	{	1073	{
873	case 20:	1074	case SIMPLE_FALSE:
874	#if CBOR_SLOW	1075	#if CBOR_SLOW
875	types_false = get_bool ("Types::Serialiser::false");	1076	types_false = get_bool ("Types::Serialiser::false");
876	#endif	1077	#endif
877	return newSVsv (types_false);	1078	return newSVsv (types_false);
878	case 21:	1079	case SIMPLE_TRUE:
879	#if CBOR_SLOW	1080	#if CBOR_SLOW
880	types_true = get_bool ("Types::Serialiser::true");	1081	types_true = get_bool ("Types::Serialiser::true");
881	#endif	1082	#endif
882	return newSVsv (types_true);	1083	return newSVsv (types_true);
883	case 22:	1084	case SIMPLE_NULL:
884	return newSVsv (&PL_sv_undef);	1085	return newSVsv (&PL_sv_undef);
885	case 23:	1086	case SIMPLE_UNDEF:
886	#if CBOR_SLOW	1087	#if CBOR_SLOW
887	types_error = get_bool ("Types::Serialiser::error");	1088	types_error = get_bool ("Types::Serialiser::error");
888	#endif	1089	#endif
889	return newSVsv (types_error);	1090	return newSVsv (types_error);
890		1091
891	case 25:	1092	case MISC_FLOAT16:
892	{	1093	{
893	WANT (2);	1094	WANT (2);
894		1095
895	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];	1096	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];
896	dec->cur += 2;	1097	dec->cur += 2;
897		1098
898	return newSVnv (ecb_binary16_to_float (fp));	1099	return newSVnv (ecb_binary16_to_float (fp));
899	}	1100	}
900		1101
901	case 26:	1102	case MISC_FLOAT32:
902	{	1103	{
903	uint32_t fp;	1104	uint32_t fp;
904	WANT (4);	1105	WANT (4);
905	memcpy (&fp, dec->cur, 4);	1106	memcpy (&fp, dec->cur, 4);
906	dec->cur += 4;	1107	dec->cur += 4;
…		…
909	fp = ecb_bswap32 (fp);	1110	fp = ecb_bswap32 (fp);
910		1111
911	return newSVnv (ecb_binary32_to_float (fp));	1112	return newSVnv (ecb_binary32_to_float (fp));
912	}	1113	}
913		1114
914	case 27:	1115	case MISC_FLOAT64:
915	{	1116	{
916	uint64_t fp;	1117	uint64_t fp;
917	WANT (8);	1118	WANT (8);
918	memcpy (&fp, dec->cur, 8);	1119	memcpy (&fp, dec->cur, 8);
919	dec->cur += 8;	1120	dec->cur += 8;
…		…
922	fp = ecb_bswap64 (fp);	1123	fp = ecb_bswap64 (fp);
923		1124
924	return newSVnv (ecb_binary64_to_double (fp));	1125	return newSVnv (ecb_binary64_to_double (fp));
925	}	1126	}
926		1127
927	// 0..19 unassigned	1128	// 0..19 unassigned simple
928	// 24 reserved + unassigned (reserved values are not encodable)	1129	// 24 reserved + unassigned (reserved values are not encodable)
929	default:	1130	default:
930	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1131	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");
931	}	1132	}
932		1133
…		…
987	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);	1188	types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1);
988		1189
989	types_true = get_bool ("Types::Serialiser::true" );	1190	types_true = get_bool ("Types::Serialiser::true" );
990	types_false = get_bool ("Types::Serialiser::false");	1191	types_false = get_bool ("Types::Serialiser::false");
991	types_error = get_bool ("Types::Serialiser::error");	1192	types_error = get_bool ("Types::Serialiser::error");
		1193
		1194	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
992		1195
993	sv_cbor = newSVpv ("CBOR", 0);	1196	sv_cbor = newSVpv ("CBOR", 0);
994	SvREADONLY_on (sv_cbor);	1197	SvREADONLY_on (sv_cbor);
995	}	1198	}
996		1199
…		…
1018	void shrink (CBOR *self, int enable = 1)	1221	void shrink (CBOR *self, int enable = 1)
1019	ALIAS:	1222	ALIAS:
1020	shrink = F_SHRINK	1223	shrink = F_SHRINK
1021	allow_unknown = F_ALLOW_UNKNOWN	1224	allow_unknown = F_ALLOW_UNKNOWN
1022	allow_sharing = F_ALLOW_SHARING	1225	allow_sharing = F_ALLOW_SHARING
1023	dedup_keys = F_DEDUP_KEYS	1226	allow_cycles = F_ALLOW_CYCLES
1024	dedup_strings = F_DEDUP_STRINGS	1227	pack_strings = F_PACK_STRINGS
1025	PPCODE:	1228	PPCODE:
1026	{	1229	{
1027	if (enable)	1230	if (enable)
1028	self->flags \|= ix;	1231	self->flags \|= ix;
1029	else	1232	else
…		…
1035	void get_shrink (CBOR *self)	1238	void get_shrink (CBOR *self)
1036	ALIAS:	1239	ALIAS:
1037	get_shrink = F_SHRINK	1240	get_shrink = F_SHRINK
1038	get_allow_unknown = F_ALLOW_UNKNOWN	1241	get_allow_unknown = F_ALLOW_UNKNOWN
1039	get_allow_sharing = F_ALLOW_SHARING	1242	get_allow_sharing = F_ALLOW_SHARING
1040	get_dedup_keys = F_DEDUP_KEYS	1243	get_allow_cycles = F_ALLOW_CYCLES
1041	get_dedup_strings = F_DEDUP_STRINGS	1244	get_pack_strings = F_PACK_STRINGS
1042	PPCODE:	1245	PPCODE:
1043	XPUSHs (boolSV (self->flags & ix));	1246	XPUSHs (boolSV (self->flags & ix));
1044		1247
1045	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1248	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1046	PPCODE:	1249	PPCODE:
…		…
1059	XPUSHs (ST (0));	1262	XPUSHs (ST (0));
1060		1263
1061	int get_max_size (CBOR *self)	1264	int get_max_size (CBOR *self)
1062	CODE:	1265	CODE:
1063	RETVAL = self->max_size;	1266	RETVAL = self->max_size;
		1267	OUTPUT:
		1268	RETVAL
		1269
		1270	void filter (CBOR self, SV filter = 0)
		1271	PPCODE:
		1272	SvREFCNT_dec (self->filter);
		1273	self->filter = filter ? newSVsv (filter) : filter;
		1274	XPUSHs (ST (0));
		1275
		1276	SV get_filter (CBOR self)
		1277	CODE:
		1278	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1064	OUTPUT:	1279	OUTPUT:
1065	RETVAL	1280	RETVAL
1066		1281
1067	void encode (CBOR self, SV scalar)	1282	void encode (CBOR self, SV scalar)
1068	PPCODE:	1283	PPCODE:
…		…
1083	EXTEND (SP, 2);	1298	EXTEND (SP, 2);
1084	PUSHs (sv);	1299	PUSHs (sv);
1085	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1300	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1086	}	1301	}
1087		1302
		1303	void DESTROY (CBOR *self)
		1304	PPCODE:
		1305	cbor_free (self);
		1306
1088	PROTOTYPES: ENABLE	1307	PROTOTYPES: ENABLE
1089		1308
1090	void encode_cbor (SV *scalar)	1309	void encode_cbor (SV *scalar)
		1310	ALIAS:
		1311	encode_cbor = 0
		1312	encode_cbor_sharing = F_ALLOW_SHARING
1091	PPCODE:	1313	PPCODE:
1092	{	1314	{
1093	CBOR cbor;	1315	CBOR cbor;
1094	cbor_init (&cbor);	1316	cbor_init (&cbor);
		1317	cbor.flags \|= ix;
1095	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1318	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1096	XPUSHs (scalar);	1319	XPUSHs (scalar);
1097	}	1320	}
1098		1321
1099	void decode_cbor (SV *cborstr)	1322	void decode_cbor (SV *cborstr)

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Comparing CBOR-XS/XS.xs (file contents): Revision 1.18 by root, Wed Nov 20 01:09:46 2013 UTC vs. Revision 1.37 by root, Sat Nov 30 18:13:53 2013 UTC

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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.18 by root, Wed Nov 20 01:09:46 2013 UTC vs.
Revision 1.37 by root, Sat Nov 30 18:13:53 2013 UTC