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Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / tools / perl-5.8.0 / lib / 5.8.0 / sun4-solaris / CORE / sv.h
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86530b38
AT		 1/* sv.h
2 *
3 * Copyright (c) 1991-2002, Larry Wall
4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
8 */
9
10#ifdef sv_flags
11#undef sv_flags /* Convex has this in <signal.h> for sigvec() */
12#endif
13
14/*
15=head1 SV Flags
16
17=for apidoc AmU||svtype
18An enum of flags for Perl types. These are found in the file B<sv.h>
19in the C<svtype> enum. Test these flags with the C<SvTYPE> macro.
20
21=for apidoc AmU||SVt_PV
22Pointer type flag for scalars. See C<svtype>.
23
24=for apidoc AmU||SVt_IV
25Integer type flag for scalars. See C<svtype>.
26
27=for apidoc AmU||SVt_NV
28Double type flag for scalars. See C<svtype>.
29
30=for apidoc AmU||SVt_PVMG
31Type flag for blessed scalars. See C<svtype>.
32
33=for apidoc AmU||SVt_PVAV
34Type flag for arrays. See C<svtype>.
35
36=for apidoc AmU||SVt_PVHV
37Type flag for hashes. See C<svtype>.
38
39=for apidoc AmU||SVt_PVCV
40Type flag for code refs. See C<svtype>.
41
42=cut
43*/
44
45typedef enum {
46 SVt_NULL, /* 0 */
47 SVt_IV, /* 1 */
48 SVt_NV, /* 2 */
49 SVt_RV, /* 3 */
50 SVt_PV, /* 4 */
51 SVt_PVIV, /* 5 */
52 SVt_PVNV, /* 6 */
53 SVt_PVMG, /* 7 */
54 SVt_PVBM, /* 8 */
55 SVt_PVLV, /* 9 */
56 SVt_PVAV, /* 10 */
57 SVt_PVHV, /* 11 */
58 SVt_PVCV, /* 12 */
59 SVt_PVGV, /* 13 */
60 SVt_PVFM, /* 14 */
61 SVt_PVIO /* 15 */
62} svtype;
63
64/* Using C's structural equivalence to help emulate C++ inheritance here... */
65
66struct STRUCT_SV { /* struct sv { */
67 void* sv_any; /* pointer to something */
68 U32 sv_refcnt; /* how many references to us */
69 U32 sv_flags; /* what we are */
70};
71
72struct gv {
73 XPVGV* sv_any; /* pointer to something */
74 U32 sv_refcnt; /* how many references to us */
75 U32 sv_flags; /* what we are */
76};
77
78struct cv {
79 XPVCV* sv_any; /* pointer to something */
80 U32 sv_refcnt; /* how many references to us */
81 U32 sv_flags; /* what we are */
82};
83
84struct av {
85 XPVAV* sv_any; /* pointer to something */
86 U32 sv_refcnt; /* how many references to us */
87 U32 sv_flags; /* what we are */
88};
89
90struct hv {
91 XPVHV* sv_any; /* pointer to something */
92 U32 sv_refcnt; /* how many references to us */
93 U32 sv_flags; /* what we are */
94};
95
96struct io {
97 XPVIO* sv_any; /* pointer to something */
98 U32 sv_refcnt; /* how many references to us */
99 U32 sv_flags; /* what we are */
100};
101
102/*
103=head1 SV Manipulation Functions
104
105=for apidoc Am|U32|SvREFCNT|SV* sv
106Returns the value of the object's reference count.
107
108=for apidoc Am|SV*|SvREFCNT_inc|SV* sv
109Increments the reference count of the given SV.
110
111=for apidoc Am|void|SvREFCNT_dec|SV* sv
112Decrements the reference count of the given SV.
113
114=for apidoc Am|svtype|SvTYPE|SV* sv
115Returns the type of the SV. See C<svtype>.
116
117=for apidoc Am|void|SvUPGRADE|SV* sv|svtype type
118Used to upgrade an SV to a more complex form. Uses C<sv_upgrade> to
119perform the upgrade if necessary. See C<svtype>.
120
121=cut
122*/
123
124#define SvANY(sv) (sv)->sv_any
125#define SvFLAGS(sv) (sv)->sv_flags
126#define SvREFCNT(sv) (sv)->sv_refcnt
127
128#ifdef USE_5005THREADS
129
130# if defined(VMS)
131# define ATOMIC_INC(count) __ATOMIC_INCREMENT_LONG(&count)
132# define ATOMIC_DEC_AND_TEST(res,count) res=(1==__ATOMIC_DECREMENT_LONG(&count))
133 # else
134# ifdef EMULATE_ATOMIC_REFCOUNTS
135 # define ATOMIC_INC(count) STMT_START { \
136 MUTEX_LOCK(&PL_svref_mutex); \
137 ++count; \
138 MUTEX_UNLOCK(&PL_svref_mutex); \
139 } STMT_END
140# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
141 MUTEX_LOCK(&PL_svref_mutex); \
142 res = (--count == 0); \
143 MUTEX_UNLOCK(&PL_svref_mutex); \
144 } STMT_END
145# else
146# define ATOMIC_INC(count) atomic_inc(&count)
147# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
148# endif /* EMULATE_ATOMIC_REFCOUNTS */
149# endif /* VMS */
150#else
151# define ATOMIC_INC(count) (++count)
152# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
153#endif /* USE_5005THREADS */
154
155#ifdef __GNUC__
156# define SvREFCNT_inc(sv) \
157 ({ \
158 SV *nsv = (SV*)(sv); \
159 if (nsv) \
160 ATOMIC_INC(SvREFCNT(nsv)); \
161 nsv; \
162 })
163#else
164# ifdef USE_5005THREADS
165# if defined(VMS) && defined(__ALPHA)
166# define SvREFCNT_inc(sv) \
167 (PL_Sv=(SV*)(sv), (PL_Sv && __ATOMIC_INCREMENT_LONG(&(SvREFCNT(PL_Sv)))), (SV *)PL_Sv)
168# else
169# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
170# endif
171# else
172# define SvREFCNT_inc(sv) \
173 ((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
174# endif
175#endif
176
177#define SvREFCNT_dec(sv) sv_free((SV*)(sv))
178
179#define SVTYPEMASK 0xff
180#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
181
182#define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
183
184#define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
185#define SVs_PADTMP 0x00000200 /* in use as tmp */
186#define SVs_PADMY 0x00000400 /* in use a "my" variable */
187#define SVs_TEMP 0x00000800 /* string is stealable? */
188#define SVs_OBJECT 0x00001000 /* is "blessed" */
189#define SVs_GMG 0x00002000 /* has magical get method */
190#define SVs_SMG 0x00004000 /* has magical set method */
191#define SVs_RMG 0x00008000 /* has random magical methods */
192
193#define SVf_IOK 0x00010000 /* has valid public integer value */
194#define SVf_NOK 0x00020000 /* has valid public numeric value */
195#define SVf_POK 0x00040000 /* has valid public pointer value */
196#define SVf_ROK 0x00080000 /* has a valid reference pointer */
197
198#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
199#define SVf_OOK 0x00200000 /* has valid offset value */
200#define SVf_BREAK 0x00400000 /* refcnt is artificially low - used
201 * by SV's in final arena cleanup */
202#define SVf_READONLY 0x00800000 /* may not be modified */
203
204
205#define SVp_IOK 0x01000000 /* has valid non-public integer value */
206#define SVp_NOK 0x02000000 /* has valid non-public numeric value */
207#define SVp_POK 0x04000000 /* has valid non-public pointer value */
208#define SVp_SCREAM 0x08000000 /* has been studied? */
209
210#define SVf_UTF8 0x20000000 /* SvPVX is UTF-8 encoded */
211
212#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE)
213
214#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
215 SVp_IOK|SVp_NOK|SVp_POK)
216
217#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
218
219#define PRIVSHIFT 8
220
221/* Some private flags. */
222
223/* SVpad_OUR may be set on SVt_PV{NV,MG,GV} types */
224#define SVpad_OUR 0x80000000 /* pad name is "our" instead of "my" */
225#define SVpad_TYPED 0x40000000 /* Typed Lexical */
226
227#define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
228
229#define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */
230
231#define SVpbm_VALID 0x80000000
232#define SVpbm_TAIL 0x40000000
233
234#define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */
235
236#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
237#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
238#define SVphv_HASKFLAGS 0x80000000 /* keys have flag byte after hash */
239
240#define SVprv_WEAKREF 0x80000000 /* Weak reference */
241
242struct xrv {
243 SV * xrv_rv; /* pointer to another SV */
244};
245
246struct xpv {
247 char * xpv_pv; /* pointer to malloced string */
248 STRLEN xpv_cur; /* length of xpv_pv as a C string */
249 STRLEN xpv_len; /* allocated size */
250};
251
252struct xpviv {
253 char * xpv_pv; /* pointer to malloced string */
254 STRLEN xpv_cur; /* length of xpv_pv as a C string */
255 STRLEN xpv_len; /* allocated size */
256 IV xiv_iv; /* integer value or pv offset */
257};
258
259struct xpvuv {
260 char * xpv_pv; /* pointer to malloced string */
261 STRLEN xpv_cur; /* length of xpv_pv as a C string */
262 STRLEN xpv_len; /* allocated size */
263 UV xuv_uv; /* unsigned value or pv offset */
264};
265
266struct xpvnv {
267 char * xpv_pv; /* pointer to malloced string */
268 STRLEN xpv_cur; /* length of xpv_pv as a C string */
269 STRLEN xpv_len; /* allocated size */
270 IV xiv_iv; /* integer value or pv offset */
271 NV xnv_nv; /* numeric value, if any */
272};
273
274/* These structure must match the beginning of struct xpvhv in hv.h. */
275struct xpvmg {
276 char * xpv_pv; /* pointer to malloced string */
277 STRLEN xpv_cur; /* length of xpv_pv as a C string */
278 STRLEN xpv_len; /* allocated size */
279 IV xiv_iv; /* integer value or pv offset */
280 NV xnv_nv; /* numeric value, if any */
281 MAGIC* xmg_magic; /* linked list of magicalness */
282 HV* xmg_stash; /* class package */
283};
284
285struct xpvlv {
286 char * xpv_pv; /* pointer to malloced string */
287 STRLEN xpv_cur; /* length of xpv_pv as a C string */
288 STRLEN xpv_len; /* allocated size */
289 IV xiv_iv; /* integer value or pv offset */
290 NV xnv_nv; /* numeric value, if any */
291 MAGIC* xmg_magic; /* linked list of magicalness */
292 HV* xmg_stash; /* class package */
293
294 STRLEN xlv_targoff;
295 STRLEN xlv_targlen;
296 SV* xlv_targ;
297 char xlv_type;
298};
299
300struct xpvgv {
301 char * xpv_pv; /* pointer to malloced string */
302 STRLEN xpv_cur; /* length of xpv_pv as a C string */
303 STRLEN xpv_len; /* allocated size */
304 IV xiv_iv; /* integer value or pv offset */
305 NV xnv_nv; /* numeric value, if any */
306 MAGIC* xmg_magic; /* linked list of magicalness */
307 HV* xmg_stash; /* class package */
308
309 GP* xgv_gp;
310 char* xgv_name;
311 STRLEN xgv_namelen;
312 HV* xgv_stash;
313 U8 xgv_flags;
314};
315
316struct xpvbm {
317 char * xpv_pv; /* pointer to malloced string */
318 STRLEN xpv_cur; /* length of xpv_pv as a C string */
319 STRLEN xpv_len; /* allocated size */
320 IV xiv_iv; /* integer value or pv offset */
321 NV xnv_nv; /* numeric value, if any */
322 MAGIC* xmg_magic; /* linked list of magicalness */
323 HV* xmg_stash; /* class package */
324
325 I32 xbm_useful; /* is this constant pattern being useful? */
326 U16 xbm_previous; /* how many characters in string before rare? */
327 U8 xbm_rare; /* rarest character in string */
328};
329
330/* This structure much match XPVCV in cv.h */
331
332typedef U16 cv_flags_t;
333
334struct xpvfm {
335 char * xpv_pv; /* pointer to malloced string */
336 STRLEN xpv_cur; /* length of xpv_pv as a C string */
337 STRLEN xpv_len; /* allocated size */
338 IV xiv_iv; /* integer value or pv offset */
339 NV xnv_nv; /* numeric value, if any */
340 MAGIC* xmg_magic; /* linked list of magicalness */
341 HV* xmg_stash; /* class package */
342
343 HV * xcv_stash;
344 OP * xcv_start;
345 OP * xcv_root;
346 void (*xcv_xsub)(pTHX_ CV*);
347 ANY xcv_xsubany;
348 GV * xcv_gv;
349 char * xcv_file;
350 long xcv_depth; /* >= 2 indicates recursive call */
351 AV * xcv_padlist;
352 CV * xcv_outside;
353#ifdef USE_5005THREADS
354 perl_mutex *xcv_mutexp; /* protects xcv_owner */
355 struct perl_thread *xcv_owner; /* current owner thread */
356#endif /* USE_5005THREADS */
357 cv_flags_t xcv_flags;
358
359 IV xfm_lines;
360};
361
362struct xpvio {
363 char * xpv_pv; /* pointer to malloced string */
364 STRLEN xpv_cur; /* length of xpv_pv as a C string */
365 STRLEN xpv_len; /* allocated size */
366 IV xiv_iv; /* integer value or pv offset */
367 NV xnv_nv; /* numeric value, if any */
368 MAGIC* xmg_magic; /* linked list of magicalness */
369 HV* xmg_stash; /* class package */
370
371 PerlIO * xio_ifp; /* ifp and ofp are normally the same */
372 PerlIO * xio_ofp; /* but sockets need separate streams */
373 /* Cray addresses everything by word boundaries (64 bits) and
374 * code and data pointers cannot be mixed (which is exactly what
375 * Perl_filter_add() tries to do with the dirp), hence the following
376 * union trick (as suggested by Gurusamy Sarathy).
377 * For further information see Geir Johansen's problem report titled
378 [ID 20000612.002] Perl problem on Cray system
379 * The any pointer (known as IoANY()) will also be a good place
380 * to hang any IO disciplines to.
381 */
382 union {
383 DIR * xiou_dirp; /* for opendir, readdir, etc */
384 void * xiou_any; /* for alignment */
385 } xio_dirpu;
386 IV xio_lines; /* $. */
387 IV xio_page; /* $% */
388 IV xio_page_len; /* $= */
389 IV xio_lines_left; /* $- */
390 char * xio_top_name; /* $^ */
391 GV * xio_top_gv; /* $^ */
392 char * xio_fmt_name; /* $~ */
393 GV * xio_fmt_gv; /* $~ */
394 char * xio_bottom_name;/* $^B */
395 GV * xio_bottom_gv; /* $^B */
396 short xio_subprocess; /* -| or |- */
397 char xio_type;
398 char xio_flags;
399};
400#define xio_dirp xio_dirpu.xiou_dirp
401#define xio_any xio_dirpu.xiou_any
402
403#define IOf_ARGV 1 /* this fp iterates over ARGV */
404#define IOf_START 2 /* check for null ARGV and substitute '-' */
405#define IOf_FLUSH 4 /* this fp wants a flush after write op */
406#define IOf_DIDTOP 8 /* just did top of form */
407#define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */
408#define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */
409#define IOf_FAKE_DIRP 64 /* xio_dirp is fake (source filters kludge) */
410
411/* The following macros define implementation-independent predicates on SVs. */
412
413/*
414=for apidoc Am|bool|SvNIOK|SV* sv
415Returns a boolean indicating whether the SV contains a number, integer or
416double.
417
418=for apidoc Am|bool|SvNIOKp|SV* sv
419Returns a boolean indicating whether the SV contains a number, integer or
420double. Checks the B<private> setting. Use C<SvNIOK>.
421
422=for apidoc Am|void|SvNIOK_off|SV* sv
423Unsets the NV/IV status of an SV.
424
425=for apidoc Am|bool|SvOK|SV* sv
426Returns a boolean indicating whether the value is an SV.
427
428=for apidoc Am|bool|SvIOKp|SV* sv
429Returns a boolean indicating whether the SV contains an integer. Checks
430the B<private> setting. Use C<SvIOK>.
431
432=for apidoc Am|bool|SvNOKp|SV* sv
433Returns a boolean indicating whether the SV contains a double. Checks the
434B<private> setting. Use C<SvNOK>.
435
436=for apidoc Am|bool|SvPOKp|SV* sv
437Returns a boolean indicating whether the SV contains a character string.
438Checks the B<private> setting. Use C<SvPOK>.
439
440=for apidoc Am|bool|SvIOK|SV* sv
441Returns a boolean indicating whether the SV contains an integer.
442
443=for apidoc Am|void|SvIOK_on|SV* sv
444Tells an SV that it is an integer.
445
446=for apidoc Am|void|SvIOK_off|SV* sv
447Unsets the IV status of an SV.
448
449=for apidoc Am|void|SvIOK_only|SV* sv
450Tells an SV that it is an integer and disables all other OK bits.
451
452=for apidoc Am|void|SvIOK_only_UV|SV* sv
453Tells and SV that it is an unsigned integer and disables all other OK bits.
454
455=for apidoc Am|void|SvIOK_UV|SV* sv
456Returns a boolean indicating whether the SV contains an unsigned integer.
457
458=for apidoc Am|void|SvUOK|SV* sv
459Returns a boolean indicating whether the SV contains an unsigned integer.
460
461=for apidoc Am|void|SvIOK_notUV|SV* sv
462Returns a boolean indicating whether the SV contains a signed integer.
463
464=for apidoc Am|bool|SvNOK|SV* sv
465Returns a boolean indicating whether the SV contains a double.
466
467=for apidoc Am|void|SvNOK_on|SV* sv
468Tells an SV that it is a double.
469
470=for apidoc Am|void|SvNOK_off|SV* sv
471Unsets the NV status of an SV.
472
473=for apidoc Am|void|SvNOK_only|SV* sv
474Tells an SV that it is a double and disables all other OK bits.
475
476=for apidoc Am|bool|SvPOK|SV* sv
477Returns a boolean indicating whether the SV contains a character
478string.
479
480=for apidoc Am|void|SvPOK_on|SV* sv
481Tells an SV that it is a string.
482
483=for apidoc Am|void|SvPOK_off|SV* sv
484Unsets the PV status of an SV.
485
486=for apidoc Am|void|SvPOK_only|SV* sv
487Tells an SV that it is a string and disables all other OK bits.
488Will also turn off the UTF8 status.
489
490=for apidoc Am|bool|SvOOK|SV* sv
491Returns a boolean indicating whether the SvIVX is a valid offset value for
492the SvPVX. This hack is used internally to speed up removal of characters
493from the beginning of a SvPV. When SvOOK is true, then the start of the
494allocated string buffer is really (SvPVX - SvIVX).
495
496=for apidoc Am|bool|SvROK|SV* sv
497Tests if the SV is an RV.
498
499=for apidoc Am|void|SvROK_on|SV* sv
500Tells an SV that it is an RV.
501
502=for apidoc Am|void|SvROK_off|SV* sv
503Unsets the RV status of an SV.
504
505=for apidoc Am|SV*|SvRV|SV* sv
506Dereferences an RV to return the SV.
507
508=for apidoc Am|IV|SvIVX|SV* sv
509Returns the raw value in the SV's IV slot, without checks or conversions.
510Only use when you are sure SvIOK is true. See also C<SvIV()>.
511
512=for apidoc Am|UV|SvUVX|SV* sv
513Returns the raw value in the SV's UV slot, without checks or conversions.
514Only use when you are sure SvIOK is true. See also C<SvUV()>.
515
516=for apidoc Am|NV|SvNVX|SV* sv
517Returns the raw value in the SV's NV slot, without checks or conversions.
518Only use when you are sure SvNOK is true. See also C<SvNV()>.
519
520=for apidoc Am|char*|SvPVX|SV* sv
521Returns a pointer to the physical string in the SV. The SV must contain a
522string.
523
524=for apidoc Am|STRLEN|SvCUR|SV* sv
525Returns the length of the string which is in the SV. See C<SvLEN>.
526
527=for apidoc Am|STRLEN|SvLEN|SV* sv
528Returns the size of the string buffer in the SV, not including any part
529attributable to C<SvOOK>. See C<SvCUR>.
530
531=for apidoc Am|char*|SvEND|SV* sv
532Returns a pointer to the last character in the string which is in the SV.
533See C<SvCUR>. Access the character as *(SvEND(sv)).
534
535=for apidoc Am|HV*|SvSTASH|SV* sv
536Returns the stash of the SV.
537
538=for apidoc Am|void|SvCUR_set|SV* sv|STRLEN len
539Set the length of the string which is in the SV. See C<SvCUR>.
540
541=cut
542*/
543
544#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
545#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
546#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
547 SVp_IOK|SVp_NOK|SVf_IVisUV))
548
549#define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
550#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
551 SVf_IVisUV|SVf_UTF8), \
552 SvOOK_off(sv))
553#define SvOK_off_exc_UV(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
554 SVf_UTF8), \
555 SvOOK_off(sv))
556
557#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
558#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
559#define SvIOKp_on(sv) ((void)SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
560#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
561#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
562#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
563#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
564
565#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
566#define SvIOK_on(sv) ((void)SvOOK_off(sv), \
567 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
568#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
569#define SvIOK_only(sv) ((void)SvOK_off(sv), \
570 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
571#define SvIOK_only_UV(sv) ((void)SvOK_off_exc_UV(sv), \
572 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
573
574#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
575 == (SVf_IOK|SVf_IVisUV))
576#define SvUOK(sv) SvIOK_UV(sv)
577#define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
578 == SVf_IOK)
579
580#define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV)
581#define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV)
582#define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV)
583
584#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
585#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
586#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
587#define SvNOK_only(sv) ((void)SvOK_off(sv), \
588 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
589
590/*
591=for apidoc Am|void|SvUTF8|SV* sv
592Returns a boolean indicating whether the SV contains UTF-8 encoded data.
593
594=for apidoc Am|void|SvUTF8_on|SV *sv
595Turn on the UTF8 status of an SV (the data is not changed, just the flag).
596Do not use frivolously.
597
598=for apidoc Am|void|SvUTF8_off|SV *sv
599Unsets the UTF8 status of an SV.
600
601=for apidoc Am|void|SvPOK_only_UTF8|SV* sv
602Tells an SV that it is a string and disables all other OK bits,
603and leaves the UTF8 status as it was.
604
605=cut
606 */
607
608#define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8)
609#define SvUTF8_on(sv) (SvFLAGS(sv) |= (SVf_UTF8))
610#define SvUTF8_off(sv) (SvFLAGS(sv) &= ~(SVf_UTF8))
611
612#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
613#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
614#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
615#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
616 SVf_IVisUV|SVf_UTF8), \
617 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
618#define SvPOK_only_UTF8(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
619 SVf_IVisUV), \
620 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
621
622#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
623#define SvOOK_on(sv) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
624#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
625
626#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
627#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
628#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
629
630#define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
631#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
632#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
633
634#define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
635#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
636#define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
637
638#define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
639#define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
640#define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
641
642#define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
643#define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
644#define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
645
646#define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
647#define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
648#define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
649
650#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
651#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
652#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
653
654#define SvGAMAGIC(sv) (SvFLAGS(sv) & (SVs_GMG|SVf_AMAGIC))
655
656/*
657#define Gv_AMG(stash) \
658 (HV_AMAGICmb(stash) && \
659 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
660*/
661#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
662
663#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
664 == (SVf_ROK|SVprv_WEAKREF))
665#define SvWEAKREF_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_WEAKREF))
666#define SvWEAKREF_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_WEAKREF))
667
668#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
669
670#define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
671
672#define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
673#define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
674#define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
675
676#define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
677#define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
678
679#define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
680#define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
681#define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
682
683#define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
684#define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
685#define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
686
687#define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
688#define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
689#define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
690
691#define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
692#define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
693#define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
694
695#define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
696#define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
697#define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
698
699#define SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL)
700#define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL)
701#define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL)
702
703#define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
704#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
705#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
706
707#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
708#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
709#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
710
711#ifdef USE_ITHREADS
712/* The following uses the FAKE flag to show that a regex pointer is infact
713 its own offset in the regexpad for ithreads */
714#define SvREPADTMP(sv) (SvFLAGS(sv) & SVf_FAKE)
715#define SvREPADTMP_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
716#define SvREPADTMP_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
717#endif
718
719#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
720#define SvRVx(sv) SvRV(sv)
721
722#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
723#define SvIVXx(sv) SvIVX(sv)
724#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
725#define SvUVXx(sv) SvUVX(sv)
726#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
727#define SvNVXx(sv) SvNVX(sv)
728#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
729#define SvPVXx(sv) SvPVX(sv)
730#define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
731#define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
732#define SvLENx(sv) SvLEN(sv)
733#define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
734#define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv))
735#define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
736#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
737
738/* Ask a scalar nicely to try to become an IV, if possible.
739 Not guaranteed to stay returning void */
740/* Macro won't actually call sv_2iv if already IOK */
741#define SvIV_please(sv) \
742 STMT_START {if (!SvIOKp(sv) && (SvNOK(sv) || SvPOK(sv))) \
743 (void) SvIV(sv); } STMT_END
744#define SvIV_set(sv, val) \
745 STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
746 (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
747#define SvNV_set(sv, val) \
748 STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
749 (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
750#define SvPV_set(sv, val) \
751 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
752 (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
753#define SvCUR_set(sv, val) \
754 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
755 (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
756#define SvLEN_set(sv, val) \
757 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
758 (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
759#define SvEND_set(sv, val) \
760 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
761 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
762
763#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
764#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
765#define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
766
767#define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
768
769#define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
770#define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
771#define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
772#define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
773
774#define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
775#define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
776#define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
777#define IoANY(sv) ((XPVIO*) SvANY(sv))->xio_any
778#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
779#define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
780#define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
781#define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
782#define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
783#define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
784#define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
785#define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
786#define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
787#define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
788#define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
789#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
790#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
791
792/* IoTYPE(sv) is a single character telling the type of I/O connection. */
793#define IoTYPE_RDONLY '<'
794#define IoTYPE_WRONLY '>'
795#define IoTYPE_RDWR '+'
796#define IoTYPE_APPEND 'a'
797#define IoTYPE_PIPE '|'
798#define IoTYPE_STD '-' /* stdin or stdout */
799#define IoTYPE_SOCKET 's'
800#define IoTYPE_CLOSED ' '
801
802/*
803=for apidoc Am|bool|SvTAINTED|SV* sv
804Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if
805not.
806
807=for apidoc Am|void|SvTAINTED_on|SV* sv
808Marks an SV as tainted.
809
810=for apidoc Am|void|SvTAINTED_off|SV* sv
811Untaints an SV. Be I<very> careful with this routine, as it short-circuits
812some of Perl's fundamental security features. XS module authors should not
813use this function unless they fully understand all the implications of
814unconditionally untainting the value. Untainting should be done in the
815standard perl fashion, via a carefully crafted regexp, rather than directly
816untainting variables.
817
818=for apidoc Am|void|SvTAINT|SV* sv
819Taints an SV if tainting is enabled
820
821=cut
822*/
823
824#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
825#define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END
826#define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END
827
828#define SvTAINT(sv) \
829 STMT_START { \
830 if (PL_tainting) { \
831 if (PL_tainted) \
832 SvTAINTED_on(sv); \
833 } \
834 } STMT_END
835
836/*
837=for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len
838Like C<SvPV> but will force the SV into containing just a string
839(C<SvPOK_only>). You want force if you are going to update the C<SvPVX>
840directly.
841
842=for apidoc Am|char*|SvPV_force_nomg|SV* sv|STRLEN len
843Like C<SvPV> but will force the SV into containing just a string
844(C<SvPOK_only>). You want force if you are going to update the C<SvPVX>
845directly. Doesn't process magic.
846
847=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
848Returns a pointer to the string in the SV, or a stringified form of
849the SV if the SV does not contain a string. The SV may cache the
850stringified version becoming C<SvPOK>. Handles 'get' magic. See also
851C<SvPVx> for a version which guarantees to evaluate sv only once.
852
853=for apidoc Am|char*|SvPVx|SV* sv|STRLEN len
854A version of C<SvPV> which guarantees to evaluate sv only once.
855
856=for apidoc Am|char*|SvPV_nolen|SV* sv
857Returns a pointer to the string in the SV, or a stringified form of
858the SV if the SV does not contain a string. The SV may cache the
859stringified form becoming C<SvPOK>. Handles 'get' magic.
860
861=for apidoc Am|IV|SvIV|SV* sv
862Coerces the given SV to an integer and returns it. See C<SvIVx> for a
863version which guarantees to evaluate sv only once.
864
865=for apidoc Am|IV|SvIVx|SV* sv
866Coerces the given SV to an integer and returns it. Guarantees to evaluate
867sv only once. Use the more efficient C<SvIV> otherwise.
868
869=for apidoc Am|NV|SvNV|SV* sv
870Coerce the given SV to a double and return it. See C<SvNVx> for a version
871which guarantees to evaluate sv only once.
872
873=for apidoc Am|NV|SvNVx|SV* sv
874Coerces the given SV to a double and returns it. Guarantees to evaluate
875sv only once. Use the more efficient C<SvNV> otherwise.
876
877=for apidoc Am|UV|SvUV|SV* sv
878Coerces the given SV to an unsigned integer and returns it. See C<SvUVx>
879for a version which guarantees to evaluate sv only once.
880
881=for apidoc Am|UV|SvUVx|SV* sv
882Coerces the given SV to an unsigned integer and returns it. Guarantees to
883evaluate sv only once. Use the more efficient C<SvUV> otherwise.
884
885=for apidoc Am|bool|SvTRUE|SV* sv
886Returns a boolean indicating whether Perl would evaluate the SV as true or
887false, defined or undefined. Does not handle 'get' magic.
888
889=for apidoc Am|char*|SvPVutf8_force|SV* sv|STRLEN len
890Like C<SvPV_force>, but converts sv to utf8 first if necessary.
891
892=for apidoc Am|char*|SvPVutf8|SV* sv|STRLEN len
893Like C<SvPV>, but converts sv to utf8 first if necessary.
894
895=for apidoc Am|char*|SvPVutf8_nolen|SV* sv
896Like C<SvPV_nolen>, but converts sv to utf8 first if necessary.
897
898=for apidoc Am|char*|SvPVbyte_force|SV* sv|STRLEN len
899Like C<SvPV_force>, but converts sv to byte representation first if necessary.
900
901=for apidoc Am|char*|SvPVbyte|SV* sv|STRLEN len
902Like C<SvPV>, but converts sv to byte representation first if necessary.
903
904=for apidoc Am|char*|SvPVbyte_nolen|SV* sv
905Like C<SvPV_nolen>, but converts sv to byte representation first if necessary.
906
907=for apidoc Am|char*|SvPVutf8x_force|SV* sv|STRLEN len
908Like C<SvPV_force>, but converts sv to utf8 first if necessary.
909Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8_force>
910otherwise.
911
912=for apidoc Am|char*|SvPVutf8x|SV* sv|STRLEN len
913Like C<SvPV>, but converts sv to utf8 first if necessary.
914Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8>
915otherwise.
916
917=for apidoc Am|char*|SvPVbytex_force|SV* sv|STRLEN len
918Like C<SvPV_force>, but converts sv to byte representation first if necessary.
919Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte_force>
920otherwise.
921
922=for apidoc Am|char*|SvPVbytex|SV* sv|STRLEN len
923Like C<SvPV>, but converts sv to byte representation first if necessary.
924Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte>
925otherwise.
926
927
928=cut
929*/
930
931/* Let us hope that bitmaps for UV and IV are the same */
932#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
933#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
934#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
935
936/* ----*/
937
938#define SvPV(sv, lp) SvPV_flags(sv, lp, SV_GMAGIC)
939
940#define SvPV_flags(sv, lp, flags) \
941 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
942 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv_flags(sv, &lp, flags))
943
944#define SvPV_force(sv, lp) SvPV_force_flags(sv, lp, SV_GMAGIC)
945
946#define SvPV_force_nomg(sv, lp) SvPV_force_flags(sv, lp, 0)
947
948#define SvPV_force_flags(sv, lp, flags) \
949 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
950 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force_flags(sv, &lp, flags))
951
952#define SvPV_nolen(sv) \
953 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
954 ? SvPVX(sv) : sv_2pv_nolen(sv))
955
956#define SvPV_nomg(sv, lp) SvPV_flags(sv, lp, 0)
957
958/* ----*/
959
960#define SvPVutf8(sv, lp) \
961 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
962 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
963
964#define SvPVutf8_force(sv, lp) \
965 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
966 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
967
968
969#define SvPVutf8_nolen(sv) \
970 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
971 ? SvPVX(sv) : sv_2pvutf8_nolen(sv))
972
973/* ----*/
974
975#define SvPVbyte(sv, lp) \
976 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
977 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp))
978
979#define SvPVbyte_force(sv, lp) \
980 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \
981 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyte_force(sv, &lp))
982
983#define SvPVbyte_nolen(sv) \
984 ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\
985 ? SvPVX(sv) : sv_2pvbyte_nolen(sv))
986
987
988
989/* define FOOx(): idempotent versions of FOO(). If possible, use a local
990 * var to evaluate the arg once; failing that, use a global if possible;
991 * failing that, call a function to do the work
992 */
993
994#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
995#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
996#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
997
998#ifdef __GNUC__
999
1000# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
1001# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
1002# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
1003# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
1004# define SvPVutf8x(sv, lp) ({SV *nsv = (sv); SvPVutf8(nsv, lp); })
1005# define SvPVbytex(sv, lp) ({SV *nsv = (sv); SvPVbyte(nsv, lp); })
1006# define SvTRUE(sv) ( \
1007 !sv \
1008 ? 0 \
1009 : SvPOK(sv) \
1010 ? (({XPV *nxpv = (XPV*)SvANY(sv); \
1011 nxpv && \
1012 (nxpv->xpv_cur > 1 || \
1013 (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \
1014 ? 1 \
1015 : 0) \
1016 : \
1017 SvIOK(sv) \
1018 ? SvIVX(sv) != 0 \
1019 : SvNOK(sv) \
1020 ? SvNVX(sv) != 0.0 \
1021 : sv_2bool(sv) )
1022# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
1023
1024#else /* __GNUC__ */
1025
1026# ifdef USE_5005THREADS
1027# define SvIVx(sv) sv_iv(sv)
1028# define SvUVx(sv) sv_uv(sv)
1029# define SvNVx(sv) sv_nv(sv)
1030# define SvPVx(sv, lp) sv_pvn(sv, &lp)
1031# define SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
1032# define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
1033# define SvTRUE(sv) SvTRUEx(sv)
1034# define SvTRUEx(sv) sv_true(sv)
1035
1036# else /* USE_5005THREADS */
1037
1038/* These inlined macros use globals, which will require a thread
1039 * declaration in user code, so we avoid them under threads */
1040
1041# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
1042# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
1043# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
1044# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
1045# define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
1046# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
1047# define SvTRUE(sv) ( \
1048 !sv \
1049 ? 0 \
1050 : SvPOK(sv) \
1051 ? ((PL_Xpv = (XPV*)SvANY(sv)) && \
1052 (PL_Xpv->xpv_cur > 1 || \
1053 (PL_Xpv->xpv_cur && *PL_Xpv->xpv_pv != '0')) \
1054 ? 1 \
1055 : 0) \
1056 : \
1057 SvIOK(sv) \
1058 ? SvIVX(sv) != 0 \
1059 : SvNOK(sv) \
1060 ? SvNVX(sv) != 0.0 \
1061 : sv_2bool(sv) )
1062# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
1063# endif /* USE_5005THREADS */
1064#endif /* __GNU__ */
1065
1066
1067/* flag values for sv_*_flags functions */
1068#define SV_IMMEDIATE_UNREF 1
1069#define SV_GMAGIC 2
1070
1071/* all these 'functions' are now just macros */
1072
1073#define sv_pv(sv) SvPV_nolen(sv)
1074#define sv_pvutf8(sv) SvPVutf8_nolen(sv)
1075#define sv_pvbyte(sv) SvPVbyte_nolen(sv)
1076
1077#define sv_pvn_force_nomg(sv, lp) sv_pvn_force_flags(sv, lp, 0)
1078#define sv_utf8_upgrade_nomg(sv) sv_utf8_upgrade_flags(sv, 0)
1079#define sv_catpvn_nomg(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, 0)
1080#define sv_setsv(dsv, ssv) sv_setsv_flags(dsv, ssv, SV_GMAGIC)
1081#define sv_setsv_nomg(dsv, ssv) sv_setsv_flags(dsv, ssv, 0)
1082#define sv_catsv(dsv, ssv) sv_catsv_flags(dsv, ssv, SV_GMAGIC)
1083#define sv_catsv_nomg(dsv, ssv) sv_catsv_flags(dsv, ssv, 0)
1084#define sv_catpvn(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC)
1085#define sv_2pv(sv, lp) sv_2pv_flags(sv, lp, SV_GMAGIC)
1086#define sv_2pv_nomg(sv, lp) sv_2pv_flags(sv, lp, 0)
1087#define sv_pvn_force(sv, lp) sv_pvn_force_flags(sv, lp, SV_GMAGIC)
1088#define sv_utf8_upgrade(sv) sv_utf8_upgrade_flags(sv, SV_GMAGIC)
1089
1090
1091/*
1092=for apidoc Am|SV*|newRV_inc|SV* sv
1093
1094Creates an RV wrapper for an SV. The reference count for the original SV is
1095incremented.
1096
1097=cut
1098*/
1099
1100#define newRV_inc(sv) newRV(sv)
1101
1102/* the following macros update any magic values this sv is associated with */
1103
1104/*
1105=head1 Magical Functions
1106
1107=for apidoc Am|void|SvGETMAGIC|SV* sv
1108Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its
1109argument more than once.
1110
1111=for apidoc Am|void|SvSETMAGIC|SV* sv
1112Invokes C<mg_set> on an SV if it has 'set' magic. This macro evaluates its
1113argument more than once.
1114
1115=for apidoc Am|void|SvSetSV|SV* dsb|SV* ssv
1116Calls C<sv_setsv> if dsv is not the same as ssv. May evaluate arguments
1117more than once.
1118
1119=for apidoc Am|void|SvSetSV_nosteal|SV* dsv|SV* ssv
1120Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
1121ssv. May evaluate arguments more than once.
1122
1123=for apidoc Am|void|SvSetMagicSV|SV* dsb|SV* ssv
1124Like C<SvSetSV>, but does any set magic required afterwards.
1125
1126=for apidoc Am|void|SvSetMagicSV_nosteal|SV* dsv|SV* ssv
1127Like C<SvSetMagicSV>, but does any set magic required afterwards.
1128
1129=for apidoc Am|void|SvSHARE|SV* sv
1130Arranges for sv to be shared between threads if a suitable module
1131has been loaded.
1132
1133=for apidoc Am|void|SvLOCK|SV* sv
1134Arranges for a mutual exclusion lock to be obtained on sv if a suitable module
1135has been loaded.
1136
1137=for apidoc Am|void|SvUNLOCK|SV* sv
1138Releases a mutual exclusion lock on sv if a suitable module
1139has been loaded.
1140
1141=head1 SV Manipulation Functions
1142
1143=for apidoc Am|char *|SvGROW|SV* sv|STRLEN len
1144Expands the character buffer in the SV so that it has room for the
1145indicated number of bytes (remember to reserve space for an extra trailing
1146NUL character). Calls C<sv_grow> to perform the expansion if necessary.
1147Returns a pointer to the character buffer.
1148
1149=cut
1150*/
1151
1152#define SvSHARE(sv) CALL_FPTR(PL_sharehook)(aTHX_ sv)
1153#define SvLOCK(sv) CALL_FPTR(PL_lockhook)(aTHX_ sv)
1154#define SvUNLOCK(sv) CALL_FPTR(PL_unlockhook)(aTHX_ sv)
1155
1156#define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END
1157#define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END
1158
1159#define SvSetSV_and(dst,src,finally) \
1160 STMT_START { \
1161 if ((dst) != (src)) { \
1162 sv_setsv(dst, src); \
1163 finally; \
1164 } \
1165 } STMT_END
1166#define SvSetSV_nosteal_and(dst,src,finally) \
1167 STMT_START { \
1168 if ((dst) != (src)) { \
1169 U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
1170 SvTEMP_off(src); \
1171 sv_setsv(dst, src); \
1172 SvFLAGS(src) |= tMpF; \
1173 finally; \
1174 } \
1175 } STMT_END
1176
1177#define SvSetSV(dst,src) \
1178 SvSetSV_and(dst,src,/*nothing*/;)
1179#define SvSetSV_nosteal(dst,src) \
1180 SvSetSV_nosteal_and(dst,src,/*nothing*/;)
1181
1182#define SvSetMagicSV(dst,src) \
1183 SvSetSV_and(dst,src,SvSETMAGIC(dst))
1184#define SvSetMagicSV_nosteal(dst,src) \
1185 SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
1186
1187#if !defined(SKIP_DEBUGGING)
1188#define SvPEEK(sv) sv_peek(sv)
1189#else
1190#define SvPEEK(sv) ""
1191#endif
1192
1193#define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no)
1194
1195#define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
1196
1197#define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
1198
1199#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
1200#define Sv_Grow sv_grow
1201
1202#define CLONEf_COPY_STACKS 1
1203#define CLONEf_KEEP_PTR_TABLE 2
1204#define CLONEf_CLONE_HOST 4
1205
1206struct clone_params {
1207 AV* stashes;
1208 UV flags;
1209 PerlInterpreter *proto_perl;
1210};
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