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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC vs.
Revision 1.95 by root, Sun Feb 22 06:55:28 2009 UTC

…		…
31	#define F_ALLOW_NONREF 0x00000100UL	31	#define F_ALLOW_NONREF 0x00000100UL
32	#define F_SHRINK 0x00000200UL	32	#define F_SHRINK 0x00000200UL
33	#define F_ALLOW_BLESSED 0x00000400UL	33	#define F_ALLOW_BLESSED 0x00000400UL
34	#define F_CONV_BLESSED 0x00000800UL	34	#define F_CONV_BLESSED 0x00000800UL
35	#define F_RELAXED 0x00001000UL	35	#define F_RELAXED 0x00001000UL
36		36	#define F_ALLOW_UNKNOWN 0x00002000UL
37	#define F_MAXDEPTH 0xf8000000UL
38	#define S_MAXDEPTH 27
39	#define F_MAXSIZE 0x01f00000UL
40	#define S_MAXSIZE 20
41	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	37	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
42		38
43	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
44	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
45
46	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
47	#define F_DEFAULT (9UL << S_MAXDEPTH)
48		40
49	#define INIT_SIZE 32 // initial scalar size to be allocated	41	#define INIT_SIZE 32 // initial scalar size to be allocated
50	#define INDENT_STEP 3 // spaces per indentation level	42	#define INDENT_STEP 3 // spaces per indentation level
51		43
52	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	44	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
…		…
67		59
68	#define IN_RANGE_INC(type,val,beg,end) \	60	#define IN_RANGE_INC(type,val,beg,end) \
69	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \	61	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
70	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	62	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
71		63
		64	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
		65
72	#ifdef USE_ITHREADS	66	#ifdef USE_ITHREADS
73	# define JSON_SLOW 1	67	# define JSON_SLOW 1
74	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	68	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
75	#else	69	#else
76	# define JSON_SLOW 0	70	# define JSON_SLOW 0
…		…
78	#endif	72	#endif
79		73
80	static HV json_stash, json_boolean_stash; // JSON::XS::	74	static HV json_stash, json_boolean_stash; // JSON::XS::
81	static SV json_true, json_false;	75	static SV json_true, json_false;
82		76
		77	enum {
		78	INCR_M_WS = 0, // initial whitespace skipping, must be 0
		79	INCR_M_STR, // inside string
		80	INCR_M_BS, // inside backslash
		81	INCR_M_JSON // outside anything, count nesting
		82	};
		83
		84	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
		85
83	typedef struct {	86	typedef struct {
84	U32 flags;	87	U32 flags;
		88	U32 max_depth;
		89	STRLEN max_size;
		90
85	SV *cb_object;	91	SV *cb_object;
86	HV *cb_sk_object;	92	HV *cb_sk_object;
		93
		94	// for the incremental parser
		95	SV *incr_text; // the source text so far
		96	STRLEN incr_pos; // the current offset into the text
		97	int incr_nest; // {[]}-nesting level
		98	unsigned char incr_mode;
87	} JSON;	99	} JSON;
		100
		101	INLINE void
		102	json_init (JSON *json)
		103	{
		104	Zero (json, 1, JSON);
		105	json->max_depth = 512;
		106	}
88		107
89	/////////////////////////////////////////////////////////////////////////////	108	/////////////////////////////////////////////////////////////////////////////
90	// utility functions	109	// utility functions
91		110
		111	INLINE SV *
		112	get_bool (const char *name)
		113	{
		114	SV *sv = get_sv (name, 1);
		115
		116	SvREADONLY_on (sv);
		117	SvREADONLY_on (SvRV (sv));
		118
		119	return sv;
		120	}
		121
92	INLINE void	122	INLINE void
93	shrink (SV *sv)	123	shrink (SV *sv)
94	{	124	{
95	sv_utf8_downgrade (sv, 1);	125	sv_utf8_downgrade (sv, 1);
		126
96	if (SvLEN (sv) > SvCUR (sv) + 1)	127	if (SvLEN (sv) > SvCUR (sv) + 1)
97	{	128	{
98	#ifdef SvPV_shrink_to_cur	129	#ifdef SvPV_shrink_to_cur
99	SvPV_shrink_to_cur (sv);	130	SvPV_shrink_to_cur (sv);
100	#elif defined (SvPV_renew)	131	#elif defined (SvPV_renew)
…		…
155	char *cur; // SvPVX (sv) + current output position	186	char *cur; // SvPVX (sv) + current output position
156	char *end; // SvEND (sv)	187	char *end; // SvEND (sv)
157	SV *sv; // result scalar	188	SV *sv; // result scalar
158	JSON json;	189	JSON json;
159	U32 indent; // indentation level	190	U32 indent; // indentation level
160	U32 maxdepth; // max. indentation/recursion level
161	UV limit; // escape character values >= this value when encoding	191	UV limit; // escape character values >= this value when encoding
162	} enc_t;	192	} enc_t;
163		193
164	INLINE void	194	INLINE void
165	need (enc_t *enc, STRLEN len)	195	need (enc_t *enc, STRLEN len)
166	{	196	{
167	if (expect_false (enc->cur + len >= enc->end))	197	if (expect_false (enc->cur + len >= enc->end))
168	{	198	{
169	STRLEN cur = enc->cur - SvPVX (enc->sv);	199	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
170	SvGROW (enc->sv, cur + len + 1);	200	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
171	enc->cur = SvPVX (enc->sv) + cur;	201	enc->cur = SvPVX (enc->sv) + cur;
172	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	202	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
173	}	203	}
174	}	204	}
175		205
…		…
250	(int)((uch - 0x10000) % 0x400 + 0xDC00));	280	(int)((uch - 0x10000) % 0x400 + 0xDC00));
251	enc->cur += 12;	281	enc->cur += 12;
252	}	282	}
253	else	283	else
254	{	284	{
255	static char hexdigit [16] = "0123456789abcdef";
256	need (enc, len += 5);	285	need (enc, len += 5);
257	*enc->cur++ = '\\';	286	*enc->cur++ = '\\';
258	*enc->cur++ = 'u';	287	*enc->cur++ = 'u';
259	*enc->cur++ = hexdigit [ uch >> 12 ];	288	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
260	*enc->cur++ = hexdigit [(uch >> 8) & 15];	289	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
261	*enc->cur++ = hexdigit [(uch >> 4) & 15];	290	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
262	*enc->cur++ = hexdigit [(uch >> 0) & 15];	291	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
263	}	292	}
264		293
265	str += clen;	294	str += clen;
266	}	295	}
267	else if (enc->json.flags & F_LATIN1)	296	else if (enc->json.flags & F_LATIN1)
…		…
338	static void	367	static void
339	encode_av (enc_t enc, AV av)	368	encode_av (enc_t enc, AV av)
340	{	369	{
341	int i, len = av_len (av);	370	int i, len = av_len (av);
342		371
343	if (enc->indent >= enc->maxdepth)	372	if (enc->indent >= enc->json.max_depth)
344	croak ("data structure too deep (hit recursion limit)");	373	croak (ERR_NESTING_EXCEEDED);
345		374
346	encode_ch (enc, '[');	375	encode_ch (enc, '[');
347		376
348	if (len >= 0)	377	if (len >= 0)
349	{	378	{
…		…
423		452
424	static void	453	static void
425	encode_hv (enc_t enc, HV hv)	454	encode_hv (enc_t enc, HV hv)
426	{	455	{
427	HE *he;	456	HE *he;
428	int count;
429		457
430	if (enc->indent >= enc->maxdepth)	458	if (enc->indent >= enc->json.max_depth)
431	croak ("data structure too deep (hit recursion limit)");	459	croak (ERR_NESTING_EXCEEDED);
432		460
433	encode_ch (enc, '{');	461	encode_ch (enc, '{');
434		462
435	// for canonical output we have to sort by keys first	463	// for canonical output we have to sort by keys first
436	// actually, this is mostly due to the stupid so-called	464	// actually, this is mostly due to the stupid so-called
437	// security workaround added somewhere in 5.8.x.	465	// security workaround added somewhere in 5.8.x
438	// that randomises hash orderings	466	// that randomises hash orderings
439	if (enc->json.flags & F_CANONICAL)	467	if (enc->json.flags & F_CANONICAL)
440	{	468	{
441	int count = hv_iterinit (hv);	469	int count = hv_iterinit (hv);
442		470
…		…
617		645
618	if (len == 1 && *pv == '1')	646	if (len == 1 && *pv == '1')
619	encode_str (enc, "true", 4, 0);	647	encode_str (enc, "true", 4, 0);
620	else if (len == 1 && *pv == '0')	648	else if (len == 1 && *pv == '0')
621	encode_str (enc, "false", 5, 0);	649	encode_str (enc, "false", 5, 0);
		650	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		651	encode_str (enc, "null", 4, 0);
622	else	652	else
623	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	653	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
624	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	654	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
625	}	655	}
		656	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		657	encode_str (enc, "null", 4, 0);
626	else	658	else
627	croak ("encountered %s, but JSON can only represent references to arrays or hashes",	659	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
628	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	660	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
629	}	661	}
630		662
…		…
692	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	724	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
693	}	725	}
694	}	726	}
695	else if (SvROK (sv))	727	else if (SvROK (sv))
696	encode_rv (enc, SvRV (sv));	728	encode_rv (enc, SvRV (sv));
697	else if (!SvOK (sv))	729	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
698	encode_str (enc, "null", 4, 0);	730	encode_str (enc, "null", 4, 0);
699	else	731	else
700	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	732	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
701	SvPV_nolen (sv), SvFLAGS (sv));	733	SvPV_nolen (sv), SvFLAGS (sv));
702	}	734	}
…		…
712	enc.json = *json;	744	enc.json = *json;
713	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	745	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
714	enc.cur = SvPVX (enc.sv);	746	enc.cur = SvPVX (enc.sv);
715	enc.end = SvEND (enc.sv);	747	enc.end = SvEND (enc.sv);
716	enc.indent = 0;	748	enc.indent = 0;
717	enc.maxdepth = DEC_DEPTH (enc.json.flags);
718	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL	749	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
719	: enc.json.flags & F_LATIN1 ? 0x000100UL	750	: enc.json.flags & F_LATIN1 ? 0x000100UL
720	: 0x110000UL;	751	: 0x110000UL;
721		752
722	SvPOK_only (enc.sv);	753	SvPOK_only (enc.sv);
…		…
789	if (*dec->cur != ch) \	820	if (*dec->cur != ch) \
790	ERR (# ch " expected"); \	821	ERR (# ch " expected"); \
791	++dec->cur; \	822	++dec->cur; \
792	SE	823	SE
793		824
794	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")	825	#define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED)
795	#define DEC_DEC_DEPTH --dec->depth	826	#define DEC_DEC_DEPTH --dec->depth
796		827
797	static SV decode_sv (dec_t dec);	828	static SV decode_sv (dec_t dec);
798		829
799	static signed char decode_hexdigit[256];	830	static signed char decode_hexdigit[256];
…		…
939	{	970	{
940	STRLEN len = cur - buf;	971	STRLEN len = cur - buf;
941		972
942	if (sv)	973	if (sv)
943	{	974	{
944	SvGROW (sv, SvCUR (sv) + len + 1);	975	STRLEN cur = SvCUR (sv);
		976
		977	if (SvLEN (sv) <= cur + len)
		978	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		979
945	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	980	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
946	SvCUR_set (sv, SvCUR (sv) + len);	981	SvCUR_set (sv, SvCUR (sv) + len);
947	}	982	}
948	else	983	else
949	sv = newSVpvn (buf, len);	984	sv = newSVpvn (buf, len);
…		…
1171	char *p = dec->cur;	1206	char *p = dec->cur;
1172	char *e = p + 24; // only try up to 24 bytes	1207	char *e = p + 24; // only try up to 24 bytes
1173		1208
1174	for (;;)	1209	for (;;)
1175	{	1210	{
1176	// the >= 0x80 is true on most architectures	1211	// the >= 0x80 is false on most architectures
1177	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')	1212	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
1178	{	1213	{
1179	// slow path, back up and use decode_str	1214	// slow path, back up and use decode_str
1180	SV *key = decode_str (dec);	1215	SV *key = decode_str (dec);
1181	if (!key)	1216	if (!key)
…		…
1329	case 't':	1364	case 't':
1330	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1365	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1331	{	1366	{
1332	dec->cur += 4;	1367	dec->cur += 4;
1333	#if JSON_SLOW	1368	#if JSON_SLOW
1334	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);	1369	json_true = get_bool ("JSON::XS::true");
1335	#endif	1370	#endif
1336	return SvREFCNT_inc (json_true);	1371	return newSVsv (json_true);
1337	}	1372	}
1338	else	1373	else
1339	ERR ("'true' expected");	1374	ERR ("'true' expected");
1340		1375
1341	break;	1376	break;
…		…
1343	case 'f':	1378	case 'f':
1344	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1379	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1345	{	1380	{
1346	dec->cur += 5;	1381	dec->cur += 5;
1347	#if JSON_SLOW	1382	#if JSON_SLOW
1348	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1383	json_false = get_bool ("JSON::XS::false");
1349	#endif	1384	#endif
1350	return SvREFCNT_inc (json_false);	1385	return newSVsv (json_false);
1351	}	1386	}
1352	else	1387	else
1353	ERR ("'false' expected");	1388	ERR ("'false' expected");
1354		1389
1355	break;	1390	break;
…		…
1373	fail:	1408	fail:
1374	return 0;	1409	return 0;
1375	}	1410	}
1376		1411
1377	static SV *	1412	static SV *
1378	decode_json (SV string, JSON json, UV *offset_return)	1413	decode_json (SV string, JSON json, STRLEN *offset_return)
1379	{	1414	{
1380	dec_t dec;	1415	dec_t dec;
1381	UV offset;	1416	STRLEN offset;
1382	SV *sv;	1417	SV *sv;
1383		1418
		1419	/* work around bugs in 5.10 where manipulating magic values
		1420	* will perl ignore the magic in subsequent accesses
		1421	*/
1384	SvGETMAGIC (string);	1422	/SvGETMAGIC (string);/
		1423	if (SvMAGICAL (string))
		1424	string = sv_2mortal (newSVsv (string));
		1425
1385	SvUPGRADE (string, SVt_PV);	1426	SvUPGRADE (string, SVt_PV);
1386		1427
1387	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))	1428	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1429	* assertion with -DDEBUGGING, although SvCUR is documented to
		1430	* return the xpv_cur field which certainly exists after upgrading.
		1431	* according to nicholas clark, calling SvPOK fixes this.
		1432	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1433	* and hope for the best.
		1434	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1435	* assertion business is seriously broken, try yet another workaround
		1436	* for the broken -DDEBUGGING.
		1437	*/
		1438	#ifdef DEBUGGING
		1439	offset = SvOK (string) ? sv_len (string) : 0;
		1440	#else
		1441	offset = SvCUR (string);
		1442	#endif
		1443
		1444	if (offset > json->max_size && json->max_size)
1388	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1445	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1389	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));	1446	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
1390		1447
1391	if (json->flags & F_UTF8)	1448	if (json->flags & F_UTF8)
1392	sv_utf8_downgrade (string, 0);	1449	sv_utf8_downgrade (string, 0);
1393	else	1450	else
1394	sv_utf8_upgrade (string);	1451	sv_utf8_upgrade (string);
1395		1452
1396	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1453	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1397		1454
1398	dec.json = *json;	1455	dec.json = *json;
1399	dec.cur = SvPVX (string);	1456	dec.cur = SvPVX (string);
1400	dec.end = SvEND (string);	1457	dec.end = SvEND (string);
1401	dec.err = 0;	1458	dec.err = 0;
1402	dec.depth = 0;	1459	dec.depth = 0;
1403	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1404		1460
1405	if (dec.json.cb_object \|\| dec.json.cb_sk_object)	1461	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
1406	dec.json.flags \|= F_HOOK;	1462	dec.json.flags \|= F_HOOK;
1407		1463
1408	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1464	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
…		…
1459		1515
1460	return sv;	1516	return sv;
1461	}	1517	}
1462		1518
1463	/////////////////////////////////////////////////////////////////////////////	1519	/////////////////////////////////////////////////////////////////////////////
		1520	// incremental parser
		1521
		1522	static void
		1523	incr_parse (JSON *self)
		1524	{
		1525	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1526
		1527	for (;;)
		1528	{
		1529	//printf ("loop pod %d p<%c><%s>, mode %d nest %d\n", p - SvPVX (self->incr_text), p, p, self->incr_mode, self->incr_nest);//D
		1530	switch (self->incr_mode)
		1531	{
		1532	// only used for intiial whitespace skipping
		1533	case INCR_M_WS:
		1534	for (;;)
		1535	{
		1536	if (*p > 0x20)
		1537	{
		1538	self->incr_mode = INCR_M_JSON;
		1539	goto incr_m_json;
		1540	}
		1541	else if (!*p)
		1542	goto interrupt;
		1543
		1544	++p;
		1545	}
		1546
		1547	// skip a single char inside a string (for \\-processing)
		1548	case INCR_M_BS:
		1549	if (!*p)
		1550	goto interrupt;
		1551
		1552	++p;
		1553	self->incr_mode = INCR_M_STR;
		1554	goto incr_m_str;
		1555
		1556	// inside a string
		1557	case INCR_M_STR:
		1558	incr_m_str:
		1559	for (;;)
		1560	{
		1561	if (*p == '"')
		1562	{
		1563	++p;
		1564	self->incr_mode = INCR_M_JSON;
		1565
		1566	if (!self->incr_nest)
		1567	goto interrupt;
		1568
		1569	goto incr_m_json;
		1570	}
		1571	else if (*p == '\\')
		1572	{
		1573	++p; // "virtually" consumes character after \
		1574
		1575	if (!*p) // if at end of string we have to switch modes
		1576	{
		1577	self->incr_mode = INCR_M_BS;
		1578	goto interrupt;
		1579	}
		1580	}
		1581	else if (!*p)
		1582	goto interrupt;
		1583
		1584	++p;
		1585	}
		1586
		1587	// after initial ws, outside string
		1588	case INCR_M_JSON:
		1589	incr_m_json:
		1590	for (;;)
		1591	{
		1592	switch (*p++)
		1593	{
		1594	case 0:
		1595	--p;
		1596	goto interrupt;
		1597
		1598	case 0x09:
		1599	case 0x0a:
		1600	case 0x0d:
		1601	case 0x20:
		1602	if (!self->incr_nest)
		1603	{
		1604	--p; // do not eat the whitespace, let the next round do it
		1605	goto interrupt;
		1606	}
		1607	break;
		1608
		1609	case '"':
		1610	self->incr_mode = INCR_M_STR;
		1611	goto incr_m_str;
		1612
		1613	case '[':
		1614	case '{':
		1615	if (++self->incr_nest > self->max_depth)
		1616	croak (ERR_NESTING_EXCEEDED);
		1617	break;
		1618
		1619	case ']':
		1620	case '}':
		1621	if (--self->incr_nest <= 0)
		1622	goto interrupt;
		1623	}
		1624	}
		1625	}
		1626
		1627	modechange:
		1628	;
		1629	}
		1630
		1631	interrupt:
		1632	self->incr_pos = p - SvPVX (self->incr_text);
		1633	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
		1634	}
		1635
		1636	/////////////////////////////////////////////////////////////////////////////
1464	// XS interface functions	1637	// XS interface functions
1465		1638
1466	MODULE = JSON::XS PACKAGE = JSON::XS	1639	MODULE = JSON::XS PACKAGE = JSON::XS
1467		1640
1468	BOOT:	1641	BOOT:
…		…
1477	: -1;	1650	: -1;
1478		1651
1479	json_stash = gv_stashpv ("JSON::XS" , 1);	1652	json_stash = gv_stashpv ("JSON::XS" , 1);
1480	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1653	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
1481		1654
1482	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );	1655	json_true = get_bool ("JSON::XS::true");
1483	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1656	json_false = get_bool ("JSON::XS::false");
1484	}	1657	}
1485		1658
1486	PROTOTYPES: DISABLE	1659	PROTOTYPES: DISABLE
1487		1660
1488	void CLONE (...)	1661	void CLONE (...)
…		…
1493	void new (char *klass)	1666	void new (char *klass)
1494	PPCODE:	1667	PPCODE:
1495	{	1668	{
1496	SV *pv = NEWSV (0, sizeof (JSON));	1669	SV *pv = NEWSV (0, sizeof (JSON));
1497	SvPOK_only (pv);	1670	SvPOK_only (pv);
1498	Zero (SvPVX (pv), 1, JSON);	1671	json_init ((JSON *)SvPVX (pv));
1499	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1500	XPUSHs (sv_2mortal (sv_bless (	1672	XPUSHs (sv_2mortal (sv_bless (
1501	newRV_noinc (pv),	1673	newRV_noinc (pv),
1502	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1674	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1503	)));	1675	)));
1504	}	1676	}
…		…
1516	allow_nonref = F_ALLOW_NONREF	1688	allow_nonref = F_ALLOW_NONREF
1517	shrink = F_SHRINK	1689	shrink = F_SHRINK
1518	allow_blessed = F_ALLOW_BLESSED	1690	allow_blessed = F_ALLOW_BLESSED
1519	convert_blessed = F_CONV_BLESSED	1691	convert_blessed = F_CONV_BLESSED
1520	relaxed = F_RELAXED	1692	relaxed = F_RELAXED
		1693	allow_unknown = F_ALLOW_UNKNOWN
1521	PPCODE:	1694	PPCODE:
1522	{	1695	{
1523	if (enable)	1696	if (enable)
1524	self->flags \|= ix;	1697	self->flags \|= ix;
1525	else	1698	else
…		…
1540	get_allow_nonref = F_ALLOW_NONREF	1713	get_allow_nonref = F_ALLOW_NONREF
1541	get_shrink = F_SHRINK	1714	get_shrink = F_SHRINK
1542	get_allow_blessed = F_ALLOW_BLESSED	1715	get_allow_blessed = F_ALLOW_BLESSED
1543	get_convert_blessed = F_CONV_BLESSED	1716	get_convert_blessed = F_CONV_BLESSED
1544	get_relaxed = F_RELAXED	1717	get_relaxed = F_RELAXED
		1718	get_allow_unknown = F_ALLOW_UNKNOWN
1545	PPCODE:	1719	PPCODE:
1546	XPUSHs (boolSV (self->flags & ix));	1720	XPUSHs (boolSV (self->flags & ix));
1547		1721
1548	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	1722	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1549	PPCODE:	1723	PPCODE:
1550	{	1724	self->max_depth = max_depth;
1551	UV log2 = 0;
1552
1553	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1554
1555	while ((1UL << log2) < max_depth)
1556	++log2;
1557
1558	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1559
1560	XPUSHs (ST (0));	1725	XPUSHs (ST (0));
1561	}
1562		1726
1563	U32 get_max_depth (JSON *self)	1727	U32 get_max_depth (JSON *self)
1564	CODE:	1728	CODE:
1565	RETVAL = DEC_DEPTH (self->flags);	1729	RETVAL = self->max_depth;
1566	OUTPUT:	1730	OUTPUT:
1567	RETVAL	1731	RETVAL
1568		1732
1569	void max_size (JSON *self, UV max_size = 0)	1733	void max_size (JSON *self, U32 max_size = 0)
1570	PPCODE:	1734	PPCODE:
1571	{	1735	self->max_size = max_size;
1572	UV log2 = 0;
1573
1574	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1575	if (max_size == 1) max_size = 2;
1576
1577	while ((1UL << log2) < max_size)
1578	++log2;
1579
1580	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1581
1582	XPUSHs (ST (0));	1736	XPUSHs (ST (0));
1583	}
1584		1737
1585	int get_max_size (JSON *self)	1738	int get_max_size (JSON *self)
1586	CODE:	1739	CODE:
1587	RETVAL = DEC_SIZE (self->flags);	1740	RETVAL = self->max_size;
1588	OUTPUT:	1741	OUTPUT:
1589	RETVAL	1742	RETVAL
1590		1743
1591	void filter_json_object (JSON self, SV cb = &PL_sv_undef)	1744	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1592	PPCODE:	1745	PPCODE:
…		…
1628	XPUSHs (decode_json (jsonstr, self, 0));	1781	XPUSHs (decode_json (jsonstr, self, 0));
1629		1782
1630	void decode_prefix (JSON self, SV jsonstr)	1783	void decode_prefix (JSON self, SV jsonstr)
1631	PPCODE:	1784	PPCODE:
1632	{	1785	{
1633	UV offset;	1786	STRLEN offset;
1634	EXTEND (SP, 2);	1787	EXTEND (SP, 2);
1635	PUSHs (decode_json (jsonstr, self, &offset));	1788	PUSHs (decode_json (jsonstr, self, &offset));
1636	PUSHs (sv_2mortal (newSVuv (offset)));	1789	PUSHs (sv_2mortal (newSVuv (offset)));
		1790	}
		1791
		1792	void incr_parse (JSON self, SV jsonstr = 0)
		1793	PPCODE:
		1794	{
		1795	if (!self->incr_text)
		1796	self->incr_text = newSVpvn ("", 0);
		1797
		1798	// append data, if any
		1799	if (jsonstr)
		1800	{
		1801	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))
		1802	{
		1803	/* utf-8-ness differs, need to upgrade */
		1804	sv_utf8_upgrade (self->incr_text);
		1805
		1806	if (self->incr_pos)
		1807	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		1808	- (U8 *)SvPVX (self->incr_text);
		1809	}
		1810
		1811	{
		1812	STRLEN len;
		1813	const char *str = SvPV (jsonstr, len);
		1814	STRLEN cur = SvCUR (self->incr_text);
		1815
		1816	if (SvLEN (self->incr_text) <= cur + len)
		1817	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		1818
		1819	Move (str, SvEND (self->incr_text), len, char);
		1820	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
		1821	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
		1822	}
		1823	}
		1824
		1825	if (GIMME_V != G_VOID)
		1826	do
		1827	{
		1828	STRLEN offset;
		1829
		1830	if (!INCR_DONE (self))
		1831	{
		1832	incr_parse (self);
		1833
		1834	if (self->incr_pos > self->max_size && self->max_size)
		1835	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1836	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
		1837
		1838	if (!INCR_DONE (self))
		1839	break;
		1840	}
		1841
		1842	XPUSHs (decode_json (self->incr_text, self, &offset));
		1843
		1844	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
		1845	self->incr_pos -= offset;
		1846	self->incr_nest = 0;
		1847	self->incr_mode = 0;
		1848	}
		1849	while (GIMME_V == G_ARRAY);
		1850	}
		1851
		1852	SV incr_text (JSON self)
		1853	ATTRS: lvalue
		1854	CODE:
		1855	{
		1856	if (self->incr_pos)
		1857	croak ("incr_text can not be called when the incremental parser already started parsing");
		1858
		1859	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;
		1860	}
		1861	OUTPUT:
		1862	RETVAL
		1863
		1864	void incr_skip (JSON *self)
		1865	CODE:
		1866	{
		1867	if (self->incr_pos)
		1868	{
		1869	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos);
		1870	self->incr_pos = 0;
		1871	self->incr_nest = 0;
		1872	self->incr_mode = 0;
		1873	}
		1874	}
		1875
		1876	void incr_reset (JSON *self)
		1877	CODE:
		1878	{
		1879	SvREFCNT_dec (self->incr_text);
		1880	self->incr_text = 0;
		1881	self->incr_pos = 0;
		1882	self->incr_nest = 0;
		1883	self->incr_mode = 0;
1637	}	1884	}
1638		1885
1639	void DESTROY (JSON *self)	1886	void DESTROY (JSON *self)
1640	CODE:	1887	CODE:
1641	SvREFCNT_dec (self->cb_sk_object);	1888	SvREFCNT_dec (self->cb_sk_object);
1642	SvREFCNT_dec (self->cb_object);	1889	SvREFCNT_dec (self->cb_object);
		1890	SvREFCNT_dec (self->incr_text);
1643		1891
1644	PROTOTYPES: ENABLE	1892	PROTOTYPES: ENABLE
1645		1893
1646	void encode_json (SV *scalar)	1894	void encode_json (SV *scalar)
1647	ALIAS:	1895	ALIAS:
1648	to_json_ = 0	1896	to_json_ = 0
1649	encode_json = F_UTF8	1897	encode_json = F_UTF8
1650	PPCODE:	1898	PPCODE:
1651	{	1899	{
1652	JSON json = { F_DEFAULT \| ix };	1900	JSON json;
		1901	json_init (&json);
		1902	json.flags \|= ix;
1653	XPUSHs (encode_json (scalar, &json));	1903	XPUSHs (encode_json (scalar, &json));
1654	}	1904	}
1655		1905
1656	void decode_json (SV *jsonstr)	1906	void decode_json (SV *jsonstr)
1657	ALIAS:	1907	ALIAS:
1658	from_json_ = 0	1908	from_json_ = 0
1659	decode_json = F_UTF8	1909	decode_json = F_UTF8
1660	PPCODE:	1910	PPCODE:
1661	{	1911	{
1662	JSON json = { F_DEFAULT \| ix };	1912	JSON json;
		1913	json_init (&json);
		1914	json.flags \|= ix;
1663	XPUSHs (decode_json (jsonstr, &json, 0));	1915	XPUSHs (decode_json (jsonstr, &json, 0));
1664	}	1916	}
1665		1917
		1918

Diff Legend

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

Comparing JSON-XS/XS.xs (file contents): Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC vs. Revision 1.95 by root, Sun Feb 22 06:55:28 2009 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC vs.
Revision 1.95 by root, Sun Feb 22 06:55:28 2009 UTC