3 * Copyright (c) 1991-1999, Larry Wall
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.
11 #undef sv_flags /* Convex has this in <signal.h> for sigvec() */
33 /* Using C's structural equivalence to help emulate C++ inheritance here... */
36 void* sv_any; /* pointer to something */
37 U32 sv_refcnt; /* how many references to us */
38 U32 sv_flags; /* what we are */
42 XPVGV* sv_any; /* pointer to something */
43 U32 sv_refcnt; /* how many references to us */
44 U32 sv_flags; /* what we are */
48 XPVCV* sv_any; /* pointer to something */
49 U32 sv_refcnt; /* how many references to us */
50 U32 sv_flags; /* what we are */
54 XPVAV* sv_any; /* pointer to something */
55 U32 sv_refcnt; /* how many references to us */
56 U32 sv_flags; /* what we are */
60 XPVHV* sv_any; /* pointer to something */
61 U32 sv_refcnt; /* how many references to us */
62 U32 sv_flags; /* what we are */
66 XPVIO* sv_any; /* pointer to something */
67 U32 sv_refcnt; /* how many references to us */
68 U32 sv_flags; /* what we are */
71 #define SvANY(sv) (sv)->sv_any
72 #define SvFLAGS(sv) (sv)->sv_flags
73 #define SvREFCNT(sv) (sv)->sv_refcnt
77 # ifdef EMULATE_ATOMIC_REFCOUNTS
78 # define ATOMIC_INC(count) STMT_START { \
79 MUTEX_LOCK(&PL_svref_mutex); \
81 MUTEX_UNLOCK(&PL_svref_mutex); \
83 # define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
84 MUTEX_LOCK(&PL_svref_mutex); \
85 res = (--count == 0); \
86 MUTEX_UNLOCK(&PL_svref_mutex); \
89 # define ATOMIC_INC(count) atomic_inc(&count)
90 # define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
91 # endif /* EMULATE_ATOMIC_REFCOUNTS */
93 # define ATOMIC_INC(count) (++count)
94 # define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
95 #endif /* USE_THREADS */
98 # define SvREFCNT_inc(sv) \
100 SV *nsv = (SV*)(sv); \
102 ATOMIC_INC(SvREFCNT(nsv)); \
106 # if defined(CRIPPLED_CC) || defined(USE_THREADS)
107 # define SvREFCNT_inc(sv) sv_newref((SV*)sv)
109 # define SvREFCNT_inc(sv) \
110 ((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
114 #define SvREFCNT_dec(sv) sv_free((SV*)sv)
116 #define SVTYPEMASK 0xff
117 #define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
119 #define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
121 #define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
122 #define SVs_PADTMP 0x00000200 /* in use as tmp */
123 #define SVs_PADMY 0x00000400 /* in use a "my" variable */
124 #define SVs_TEMP 0x00000800 /* string is stealable? */
125 #define SVs_OBJECT 0x00001000 /* is "blessed" */
126 #define SVs_GMG 0x00002000 /* has magical get method */
127 #define SVs_SMG 0x00004000 /* has magical set method */
128 #define SVs_RMG 0x00008000 /* has random magical methods */
130 #define SVf_IOK 0x00010000 /* has valid public integer value */
131 #define SVf_NOK 0x00020000 /* has valid public numeric value */
132 #define SVf_POK 0x00040000 /* has valid public pointer value */
133 #define SVf_ROK 0x00080000 /* has a valid reference pointer */
135 #define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
136 #define SVf_OOK 0x00200000 /* has valid offset value */
137 #define SVf_BREAK 0x00400000 /* refcnt is artificially low */
138 #define SVf_READONLY 0x00800000 /* may not be modified */
140 #define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE)
142 #define SVp_IOK 0x01000000 /* has valid non-public integer value */
143 #define SVp_NOK 0x02000000 /* has valid non-public numeric value */
144 #define SVp_POK 0x04000000 /* has valid non-public pointer value */
145 #define SVp_SCREAM 0x08000000 /* has been studied? */
147 #define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
148 SVp_IOK|SVp_NOK|SVp_POK)
150 #define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
154 /* Some private flags. */
156 #define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
158 #define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */
160 #define SVpbm_VALID 0x80000000
161 #define SVpbm_TAIL 0x40000000
163 #define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */
165 #define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
166 #define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
169 SV * xrv_rv; /* pointer to another SV */
173 char * xpv_pv; /* pointer to malloced string */
174 STRLEN xpv_cur; /* length of xpv_pv as a C string */
175 STRLEN xpv_len; /* allocated size */
179 char * xpv_pv; /* pointer to malloced string */
180 STRLEN xpv_cur; /* length of xpv_pv as a C string */
181 STRLEN xpv_len; /* allocated size */
182 IV xiv_iv; /* integer value or pv offset */
186 char * xpv_pv; /* pointer to malloced string */
187 STRLEN xpv_cur; /* length of xpv_pv as a C string */
188 STRLEN xpv_len; /* allocated size */
189 UV xuv_uv; /* unsigned value or pv offset */
193 char * xpv_pv; /* pointer to malloced string */
194 STRLEN xpv_cur; /* length of xpv_pv as a C string */
195 STRLEN xpv_len; /* allocated size */
196 IV xiv_iv; /* integer value or pv offset */
197 double xnv_nv; /* numeric value, if any */
200 /* These structure must match the beginning of struct xpvhv in hv.h. */
202 char * xpv_pv; /* pointer to malloced string */
203 STRLEN xpv_cur; /* length of xpv_pv as a C string */
204 STRLEN xpv_len; /* allocated size */
205 IV xiv_iv; /* integer value or pv offset */
206 double xnv_nv; /* numeric value, if any */
207 MAGIC* xmg_magic; /* linked list of magicalness */
208 HV* xmg_stash; /* class package */
212 char * xpv_pv; /* pointer to malloced string */
213 STRLEN xpv_cur; /* length of xpv_pv as a C string */
214 STRLEN xpv_len; /* allocated size */
215 IV xiv_iv; /* integer value or pv offset */
216 double xnv_nv; /* numeric value, if any */
217 MAGIC* xmg_magic; /* linked list of magicalness */
218 HV* xmg_stash; /* class package */
227 char * xpv_pv; /* pointer to malloced string */
228 STRLEN xpv_cur; /* length of xpv_pv as a C string */
229 STRLEN xpv_len; /* allocated size */
230 IV xiv_iv; /* integer value or pv offset */
231 double xnv_nv; /* numeric value, if any */
232 MAGIC* xmg_magic; /* linked list of magicalness */
233 HV* xmg_stash; /* class package */
243 char * xpv_pv; /* pointer to malloced string */
244 STRLEN xpv_cur; /* length of xpv_pv as a C string */
245 STRLEN xpv_len; /* allocated size */
246 IV xiv_iv; /* integer value or pv offset */
247 double xnv_nv; /* numeric value, if any */
248 MAGIC* xmg_magic; /* linked list of magicalness */
249 HV* xmg_stash; /* class package */
251 I32 xbm_useful; /* is this constant pattern being useful? */
252 U16 xbm_previous; /* how many characters in string before rare? */
253 U8 xbm_rare; /* rarest character in string */
256 /* This structure much match XPVCV */
258 typedef U16 cv_flags_t;
261 char * xpv_pv; /* pointer to malloced string */
262 STRLEN xpv_cur; /* length of xpv_pv as a C string */
263 STRLEN xpv_len; /* allocated size */
264 IV xiv_iv; /* integer value or pv offset */
265 double xnv_nv; /* numeric value, if any */
266 MAGIC* xmg_magic; /* linked list of magicalness */
267 HV* xmg_stash; /* class package */
272 void (*xcv_xsub)_((CV* _CPERLproto));
276 long xcv_depth; /* >= 2 indicates recursive call */
280 perl_mutex *xcv_mutexp; /* protects xcv_owner */
281 struct perl_thread *xcv_owner; /* current owner thread */
282 #endif /* USE_THREADS */
283 cv_flags_t xcv_flags;
289 char * xpv_pv; /* pointer to malloced string */
290 STRLEN xpv_cur; /* length of xpv_pv as a C string */
291 STRLEN xpv_len; /* allocated size */
292 IV xiv_iv; /* integer value or pv offset */
293 double xnv_nv; /* numeric value, if any */
294 MAGIC* xmg_magic; /* linked list of magicalness */
295 HV* xmg_stash; /* class package */
297 PerlIO * xio_ifp; /* ifp and ofp are normally the same */
298 PerlIO * xio_ofp; /* but sockets need separate streams */
299 DIR * xio_dirp; /* for opendir, readdir, etc */
300 long xio_lines; /* $. */
301 long xio_page; /* $% */
302 long xio_page_len; /* $= */
303 long xio_lines_left; /* $- */
304 char * xio_top_name; /* $^ */
305 GV * xio_top_gv; /* $^ */
306 char * xio_fmt_name; /* $~ */
307 GV * xio_fmt_gv; /* $~ */
308 char * xio_bottom_name;/* $^B */
309 GV * xio_bottom_gv; /* $^B */
310 short xio_subprocess; /* -| or |- */
315 #define IOf_ARGV 1 /* this fp iterates over ARGV */
316 #define IOf_START 2 /* check for null ARGV and substitute '-' */
317 #define IOf_FLUSH 4 /* this fp wants a flush after write op */
318 #define IOf_DIDTOP 8 /* just did top of form */
319 #define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */
320 #define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */
322 /* The following macros define implementation-independent predicates on SVs. */
324 #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK))
325 #define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK))
326 #define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \
327 SVp_IOK|SVp_NOK|SVf_IVisUV))
329 #define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
330 #define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
333 #define SvOK_off_exc_UV(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \
336 #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK))
337 #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK)
338 #define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK)
339 #define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK)
340 #define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK)
341 #define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK)
342 #define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK)
344 #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK)
345 #define SvIOK_on(sv) (SvOOK_off(sv), \
346 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
347 #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
348 #define SvIOK_only(sv) (SvOK_off(sv), \
349 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
350 #define SvIOK_only_UV(sv) (SvOK_off_exc_UV(sv), \
351 SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
353 #define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
354 == (SVf_IOK|SVf_IVisUV))
355 #define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
358 #define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV)
359 #define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV)
360 #define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV)
362 #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK)
363 #define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
364 #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK))
365 #define SvNOK_only(sv) (SvOK_off(sv), \
366 SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
368 #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK)
369 #define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK))
370 #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK))
371 #define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC|SVf_IVisUV), \
372 SvFLAGS(sv) |= (SVf_POK|SVp_POK))
374 #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
375 #define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK)
376 #define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv))
378 #define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE)
379 #define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE)
380 #define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE)
382 #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK)
383 #define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK)
384 #define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC))
386 #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG))
387 #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG))
388 #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG))
390 #define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG)
391 #define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG)
392 #define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG)
394 #define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG)
395 #define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG)
396 #define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG)
398 #define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG)
399 #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG)
400 #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG)
402 #define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC)
403 #define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC)
404 #define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC)
407 #define Gv_AMG(stash) \
408 (HV_AMAGICmb(stash) && \
409 ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash)))
411 #define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
413 #define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST)
415 #define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY)
417 #define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP)
418 #define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY)
419 #define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP)
421 #define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY)
422 #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY)
424 #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP)
425 #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP)
426 #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP)
428 #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT)
429 #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT)
430 #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT)
432 #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY)
433 #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY)
434 #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY)
436 #define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM)
437 #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM)
438 #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM)
440 #define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED)
441 #define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED)
442 #define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED)
444 #define SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL)
445 #define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL)
446 #define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL)
448 #define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL)
449 #define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL)
450 #define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL)
452 #define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID)
453 #define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID)
454 #define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID)
456 #define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv
457 #define SvRVx(sv) SvRV(sv)
459 #define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv
460 #define SvIVXx(sv) SvIVX(sv)
461 #define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv
462 #define SvUVXx(sv) SvUVX(sv)
463 #define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv
464 #define SvNVXx(sv) SvNVX(sv)
465 #define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv
466 #define SvPVXx(sv) SvPVX(sv)
467 #define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur
468 #define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len
469 #define SvLENx(sv) SvLEN(sv)
470 #define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur)
471 #define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv))
472 #define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic
473 #define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash
475 #define SvIV_set(sv, val) \
476 STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \
477 (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END
478 #define SvNV_set(sv, val) \
479 STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \
480 (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END
481 #define SvPV_set(sv, val) \
482 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
483 (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END
484 #define SvCUR_set(sv, val) \
485 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
486 (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END
487 #define SvLEN_set(sv, val) \
488 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
489 (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END
490 #define SvEND_set(sv, val) \
491 STMT_START { assert(SvTYPE(sv) >= SVt_PV); \
492 (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END
494 #define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare
495 #define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful
496 #define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous
498 #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines
500 #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type
501 #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ
502 #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff
503 #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen
505 #define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp
506 #define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp
507 #define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp
508 #define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines
509 #define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page
510 #define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len
511 #define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left
512 #define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name
513 #define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv
514 #define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name
515 #define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv
516 #define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name
517 #define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv
518 #define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess
519 #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type
520 #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags
522 #define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv))
523 #define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END
524 #define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END
526 #define SvTAINT(sv) \
535 #define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
536 #define SvPV(sv, lp) sv_pvn(sv, &lp)
537 #define SvPV_nolen(sv) sv_pv(sv)
538 #define SvIVx(sv) sv_iv(sv)
539 #define SvUVx(sv) sv_uv(sv)
540 #define SvNVx(sv) sv_nv(sv)
541 #define SvPVx(sv, lp) sv_pvn(sv, &lp)
542 #define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
543 #define SvTRUEx(sv) sv_true(sv)
545 #define SvIV(sv) SvIVx(sv)
546 #define SvNV(sv) SvNVx(sv)
547 #define SvUV(sv) SvUVx(sv)
548 #define SvTRUE(sv) SvTRUEx(sv)
551 /* redefine some things to more efficient inlined versions */
553 /* Let us hope that bitmaps for UV and IV are the same */
555 #define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
558 #define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
561 #define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
564 #define SvPV(sv, lp) \
565 (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
568 #define SvPV_force(sv, lp) \
569 ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
570 ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
573 #define SvPV_nolen(sv) \
574 (SvPOK(sv) ? SvPVX(sv) : sv_2pv_nolen(sv))
583 # define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
584 # define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
585 # define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
586 # define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
587 # define SvTRUE(sv) ( \
591 ? (({XPV *nxpv = (XPV*)SvANY(sv); \
593 (*nxpv->xpv_pv > '0' || \
594 nxpv->xpv_cur > 1 || \
595 (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \
604 # define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); })
607 /* These inlined macros use globals, which will require a thread
608 * declaration in user code, so we avoid them under threads */
616 # define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv))
617 # define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv))
618 # define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv))
619 # define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp))
620 # define SvTRUE(sv) ( \
624 ? ((PL_Xpv = (XPV*)SvANY(sv)) && \
625 (*PL_Xpv->xpv_pv > '0' || \
626 PL_Xpv->xpv_cur > 1 || \
627 (PL_Xpv->xpv_cur && *PL_Xpv->xpv_pv != '0')) \
636 # define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv))
637 #endif /* !USE_THREADS */
638 #endif /* !__GNU__ */
639 #endif /* !CRIPPLED_CC */
641 #define newRV_inc(sv) newRV(sv)
643 /* the following macros update any magic values this sv is associated with */
645 #define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END
646 #define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END
648 #define SvSetSV_and(dst,src,finally) \
650 if ((dst) != (src)) { \
651 sv_setsv(dst, src); \
655 #define SvSetSV_nosteal_and(dst,src,finally) \
657 if ((dst) != (src)) { \
658 U32 tMpF = SvFLAGS(src) & SVs_TEMP; \
660 sv_setsv(dst, src); \
661 SvFLAGS(src) |= tMpF; \
666 #define SvSetSV(dst,src) \
667 SvSetSV_and(dst,src,/*nothing*/;)
668 #define SvSetSV_nosteal(dst,src) \
669 SvSetSV_nosteal_and(dst,src,/*nothing*/;)
671 #define SvSetMagicSV(dst,src) \
672 SvSetSV_and(dst,src,SvSETMAGIC(dst))
673 #define SvSetMagicSV_nosteal(dst,src) \
674 SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst))
677 #define SvPEEK(sv) sv_peek(sv)
679 #define SvPEEK(sv) ""
682 #define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no)
684 #define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no)
686 #define isGV(sv) (SvTYPE(sv) == SVt_PVGV)
689 # define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
690 # define Sv_Grow sv_grow
692 /* extra parentheses intentionally NOT placed around "len"! */
693 # define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \
694 ? sv_grow(sv,(unsigned long)len) : SvPVX(sv))
695 # define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len))