3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
5 * by Larry Wall and others
7 * You may distribute under the terms of either the GNU General Public
8 * License or the Artistic License, as specified in the README file.
13 =head1 Per-Interpreter Variables
16 /* These variables are per-interpreter in threaded/multiplicity builds,
19 * Don't forget to re-run embed.pl to propagate changes! */
21 /* New variables must be added to the very end for binary compatibility.
22 * XSUB.h provides wrapper functions via perlapi.h that make this
23 * irrelevant, but not all code may be expected to #include XSUB.h. */
25 /* Don't forget to add your variable also to perl_clone()! */
27 /* The 'I' prefix is only needed for vars that need appropriate #defines
28 * generated when built with or without MULTIPLICITY. It is also used
29 * to generate the appropriate export list for win32.
31 * When building without MULTIPLICITY, these variables will be truly global.
33 * Important ones in the first cache line (if alignment is done right) */
35 PERLVAR(Istack_sp, SV **) /* top of the stack */
37 PERLVAR(Iopsave, OP *)
39 PERLVAR(Iop, OP *) /* currently executing op */
41 PERLVAR(Icurpad, SV **) /* active pad (lexicals+tmps) */
43 PERLVAR(Istack_base, SV **)
44 PERLVAR(Istack_max, SV **)
46 PERLVAR(Iscopestack, I32 *) /* scopes we've ENTERed */
47 PERLVAR(Iscopestack_ix, I32)
48 PERLVAR(Iscopestack_max,I32)
50 PERLVAR(Isavestack, ANY *) /* items that need to be restored when
51 LEAVEing scopes we've ENTERed */
52 PERLVAR(Isavestack_ix, I32)
53 PERLVAR(Isavestack_max, I32)
55 PERLVAR(Itmps_stack, SV **) /* mortals we've made */
56 PERLVARI(Itmps_ix, I32, -1)
57 PERLVARI(Itmps_floor, I32, -1)
58 PERLVAR(Itmps_max, I32)
59 PERLVAR(Imodcount, I32) /* how much mod()ification in
62 PERLVAR(Imarkstack, I32 *) /* stack_sp locations we're
64 PERLVAR(Imarkstack_ptr, I32 *)
65 PERLVAR(Imarkstack_max, I32 *)
67 PERLVAR(ISv, SV *) /* used to hold temporary values */
68 PERLVAR(IXpv, XPV *) /* used to hold temporary values */
71 =for apidoc Amn|STRLEN|PL_na
73 A convenience variable which is typically used with C<SvPV> when one
74 doesn't care about the length of the string. It is usually more efficient
75 to either declare a local variable and use that instead or to use the
81 PERLVAR(Ina, STRLEN) /* for use in SvPV when length is
85 PERLVAR(Istatbuf, Stat_t)
86 PERLVAR(Istatcache, Stat_t) /* _ */
87 PERLVAR(Istatgv, GV *)
88 PERLVARI(Istatname, SV *, NULL)
91 PERLVAR(Itimesbuf, struct tms)
94 /* Fields used by magic variables such as $@, $/ and so on */
95 PERLVAR(Icurpm, PMOP *) /* what to do \ interps in REs from */
98 =for apidoc mn|SV*|PL_rs
100 The input record separator - C<$/> in Perl space.
102 =for apidoc mn|GV*|PL_last_in_gv
104 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
106 =for apidoc mn|SV*|PL_ofs_sv
108 The output field separator - C<$,> in Perl space.
113 PERLVAR(Irs, SV *) /* input record separator $/ */
114 PERLVAR(Ilast_in_gv, GV *) /* GV used in last <FH> */
115 PERLVAR(Iofs_sv, SV *) /* output field separator $, */
116 PERLVAR(Idefoutgv, GV *) /* default FH for output */
117 PERLVARI(Ichopset, const char *, " \n-") /* $: */
118 PERLVAR(Iformtarget, SV *)
119 PERLVAR(Ibodytarget, SV *)
120 PERLVAR(Itoptarget, SV *)
123 PERLVAR(Idefstash, HV *) /* main symbol table */
124 PERLVAR(Icurstash, HV *) /* symbol table for current package */
126 PERLVAR(Irestartop, OP *) /* propagating an error from croak? */
127 PERLVAR(Icurcop, COP * VOL)
128 PERLVAR(Icurstack, AV *) /* THE STACK */
129 PERLVAR(Icurstackinfo, PERL_SI *) /* current stack + context */
130 PERLVAR(Imainstack, AV *) /* the stack when nothing funny is
133 PERLVAR(Itop_env, JMPENV *) /* ptr to current sigjmp environment */
134 PERLVAR(Istart_env, JMPENV) /* empty startup sigjmp environment */
135 PERLVARI(Ierrors, SV *, NULL) /* outstanding queued errors */
137 /* statics "owned" by various functions */
138 PERLVAR(Ihv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
140 PERLVAR(Ilastgotoprobe, OP*) /* from pp_ctl.c */
143 PERLVAR(Isortcop, OP *) /* user defined sort routine */
144 PERLVAR(Isortstash, HV *) /* which is in some package or other */
145 PERLVAR(Ifirstgv, GV *) /* $a */
146 PERLVAR(Isecondgv, GV *) /* $b */
149 PERLVAR(Iefloatbuf, char *)
150 PERLVAR(Iefloatsize, STRLEN)
154 PERLVAR(Iscreamfirst, I32 *)
155 PERLVAR(Iscreamnext, I32 *)
156 PERLVAR(Ilastscream, SV *)
158 PERLVAR(Ireg_state, struct re_save_state)
160 PERLVAR(Iregdummy, regnode) /* from regcomp.c */
162 PERLVARI(Idumpindent, U16, 4) /* number of blanks per dump
165 /* Space for U16 here without increasing the structure size */
167 PERLVARA(Icolors,6, char *) /* from regcomp.c */
169 PERLVARI(Ipeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
170 /* Pointer to peephole optimizer */
172 PERLVARI(Imaxscream, I32, -1)
173 PERLVARI(Ireginterp_cnt,I32, 0) /* Whether "Regexp" was interpolated. */
174 PERLVARI(Iwatchaddr, char **, 0)
175 PERLVAR(Iwatchok, char *)
177 /* the currently active slab in a chain of slabs of regmatch states,
178 * and the currently active state within that slab */
180 PERLVARI(Iregmatch_slab, regmatch_slab *, NULL)
181 PERLVAR(Iregmatch_state, regmatch_state *)
183 PERLVARI(Idelayedisa, HV*, NULL) /* stash for PL_delaymagic for magic_setisa */
185 /* Put anything new that is pointer aligned here. */
187 PERLVAR(Idelaymagic, U16) /* ($<,$>) = ... */
188 PERLVAR(Ilocalizing, U8) /* are we processing a local() list? */
189 PERLVAR(Icolorset, bool) /* from regcomp.c */
190 PERLVARI(Idirty, bool, FALSE) /* in the middle of tearing things
192 PERLVAR(Iin_eval, VOL U8) /* trap "fatal" errors? */
193 PERLVAR(Itainted, bool) /* using variables controlled by $< */
195 /* This value may be set when embedding for full cleanup */
196 /* 0=none, 1=full, 2=full with checks */
197 PERLVARI(Iperl_destruct_level, U8, 0)
199 PERLVAR(Iperldb, U32)
201 /* pseudo environmental stuff */
202 PERLVAR(Iorigargc, int)
203 PERLVAR(Iorigargv, char **)
204 PERLVAR(Ienvgv, GV *)
205 PERLVAR(Iincgv, GV *)
206 PERLVAR(Ihintgv, GV *)
207 PERLVAR(Iorigfilename, char *)
208 PERLVAR(Idiehook, SV *)
209 PERLVAR(Iwarnhook, SV *)
212 PERLVAR(Ipatchlevel, SV *)
213 PERLVAR(Ilocalpatches, const char * const *)
214 PERLVARI(Isplitstr, const char *, " ")
216 PERLVAR(Iminus_c, bool)
217 PERLVAR(Ipreprocess, bool)
218 PERLVAR(Iminus_n, bool)
219 PERLVAR(Iminus_p, bool)
220 PERLVAR(Iminus_l, bool)
221 PERLVAR(Iminus_a, bool)
222 PERLVAR(Iminus_F, bool)
223 PERLVAR(Idoswitches, bool)
225 PERLVAR(Iminus_E, bool)
229 =for apidoc mn|bool|PL_dowarn
231 The C variable which corresponds to Perl's $^W warning variable.
237 PERLVAR(Idoextract, bool)
238 PERLVAR(Isawampersand, bool) /* must save all match strings */
239 PERLVAR(Iunsafe, bool)
240 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
241 PERLVAR(Isrand_called, bool)
242 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
243 PERLVAR(Itainting, bool) /* doing taint checks */
244 PERLVAR(Iinplace, char *)
245 PERLVAR(Ie_script, SV *)
247 /* magical thingies */
248 PERLVAR(Ibasetime, Time_t) /* $^T */
249 PERLVAR(Iformfeed, SV *) /* $^L */
252 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
253 /* top fd to pass to subprocesses */
254 PERLVAR(Istatusvalue, I32) /* $? */
256 PERLVAR(Istatusvalue_vms,U32)
258 PERLVAR(Istatusvalue_posix,I32)
262 PERLVARI(Icshlen, I32, 0)
263 PERLVARI(Icshname, const char *, CSH)
266 /* shortcuts to various I/O objects */
267 PERLVAR(Istdingv, GV *)
268 PERLVAR(Istderrgv, GV *)
269 PERLVAR(Idefgv, GV *)
270 PERLVAR(Iargvgv, GV *)
271 PERLVAR(Iargvoutgv, GV *)
272 PERLVAR(Iargvout_stack, AV *)
274 /* shortcuts to regexp stuff */
275 PERLVAR(Ireplgv, GV *)
277 /* shortcuts to misc objects */
278 PERLVAR(Ierrgv, GV *)
280 /* shortcuts to debugging objects */
282 PERLVAR(IDBline, GV *)
285 =for apidoc mn|GV *|PL_DBsub
286 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
287 the SV which holds the name of the sub being debugged. This is the C
288 variable which corresponds to Perl's $DB::sub variable. See
291 =for apidoc mn|SV *|PL_DBsingle
292 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
293 boolean which indicates whether subs are being single-stepped.
294 Single-stepping is automatically turned on after every step. This is the C
295 variable which corresponds to Perl's $DB::single variable. See
298 =for apidoc mn|SV *|PL_DBtrace
299 Trace variable used when Perl is run in debugging mode, with the B<-d>
300 switch. This is the C variable which corresponds to Perl's $DB::trace
301 variable. See C<PL_DBsingle>.
306 PERLVAR(IDBsub, GV *)
307 PERLVAR(IDBsingle, SV *)
308 PERLVAR(IDBtrace, SV *)
309 PERLVAR(IDBsignal, SV *)
310 PERLVAR(Ilineary, AV *) /* lines of script for debugger */
311 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
314 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
315 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
316 PERLVAR(Icurstname, SV *) /* name of current package */
317 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
318 PERLVAR(Iendav, AV *) /* names of END subroutines */
319 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
320 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
321 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
322 PERLVAR(Istrtab, HV *) /* shared string table */
323 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
325 /* funky return mechanisms */
326 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
328 /* memory management */
329 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
330 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
331 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
332 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
334 /* subprocess state */
335 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
338 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
340 /* current interpreter roots */
341 PERLVAR(Imain_cv, CV *)
342 PERLVAR(Imain_root, OP *)
343 PERLVAR(Imain_start, OP *)
344 PERLVAR(Ieval_root, OP *)
345 PERLVAR(Ieval_start, OP *)
347 /* runtime control stuff */
348 PERLVARI(Icurcopdb, COP *, NULL)
350 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
351 PERLVAR(Ilastfd, int) /* what to preserve mode on */
352 PERLVAR(Ioldname, char *) /* what to preserve mode on */
353 PERLVAR(IArgv, char **) /* stuff to free from do_aexec, vfork safe */
354 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
355 PERLVAR(Ipreambleav, AV *)
356 PERLVAR(Imess_sv, SV *)
357 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
358 /* statics moved here for shared library purposes */
359 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
360 PERLVAR(Ierror_count, U8) /* how many errors so far, max 10 */
361 PERLVARI(Icv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
362 PERLVARI(Ilaststype, U16, OP_STAT)
363 PERLVARI(Ilaststatval, int, -1)
365 /* interpreter atexit processing */
366 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
367 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
368 /* list of exit functions */
371 =for apidoc Amn|HV*|PL_modglobal
373 C<PL_modglobal> is a general purpose, interpreter global HV for use by
374 extensions that need to keep information on a per-interpreter basis.
375 In a pinch, it can also be used as a symbol table for extensions
376 to share data among each other. It is a good idea to use keys
377 prefixed by the package name of the extension that owns the data.
382 PERLVAR(Imodglobal, HV *) /* per-interp module data */
384 /* these used to be in global before 5.004_68 */
385 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
387 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
389 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
390 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
391 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
392 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
393 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
395 #ifdef HAVE_INTERP_INTERN
396 PERLVAR(Isys_intern, struct interp_intern)
397 /* platform internals */
400 /* more statics moved here */
401 PERLVAR(IDBcv, CV *) /* from perl.c */
402 PERLVARI(Igeneration, int, 100) /* from op.c */
404 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
405 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
406 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
407 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
409 PERLVAR(Iuid, Uid_t) /* current real user id */
410 PERLVAR(Ieuid, Uid_t) /* current effective user id */
411 PERLVAR(Igid, Gid_t) /* current real group id */
412 PERLVAR(Iegid, Gid_t) /* current effective group id */
413 PERLVARI(Ian, U32, 0) /* malloc sequence number */
414 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
415 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
416 PERLVAR(Iorigalen, U32)
417 PERLVAR(Iorigenviron, char **)
418 #ifdef PERL_USES_PL_PIDSTATUS
419 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
421 PERLVAR(Iosname, char *) /* operating system */
423 PERLVAR(Isighandlerp, Sighandler_t)
425 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
427 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
428 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
430 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
432 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
434 PERLVARA(Itokenbuf,256, char)
437 =for apidoc Amn|SV|PL_sv_undef
438 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
440 =for apidoc Amn|SV|PL_sv_no
441 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
444 =for apidoc Amn|SV|PL_sv_yes
445 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
451 PERLVAR(Isv_undef, SV)
455 PERLVAR(Isubname, SV *) /* name of current subroutine */
457 PERLVAR(Isubline, I32) /* line this subroutine began on */
458 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
460 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
461 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
463 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
464 PERLVAR(Ipad_reset_pending, I32) /* reset pad on next attempted alloc */
466 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
468 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
470 PERLVARI(Iamagic_generation, long, 0)
472 #ifdef USE_LOCALE_COLLATE
473 PERLVAR(Icollation_name,char *) /* Name of current collation */
474 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
475 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
476 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
477 PERLVARI(Icollation_standard, bool, TRUE)
478 /* Assume simple collation */
479 #endif /* USE_LOCALE_COLLATE */
482 #ifdef PERL_UTF8_CACHE_ASSERT
487 PERLVARI(Iutf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
491 #ifdef USE_LOCALE_NUMERIC
493 PERLVARI(Inumeric_standard, bool, TRUE)
494 /* Assume simple numerics */
495 PERLVARI(Inumeric_local, bool, TRUE)
496 /* Assume local numerics */
497 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
498 #endif /* !USE_LOCALE_NUMERIC */
500 /* utf8 character classes */
501 PERLVAR(Iutf8_alnum, SV *)
502 PERLVAR(Iutf8_alnumc, SV *)
503 PERLVAR(Iutf8_ascii, SV *)
504 PERLVAR(Iutf8_alpha, SV *)
505 PERLVAR(Iutf8_space, SV *)
506 PERLVAR(Iutf8_cntrl, SV *)
507 PERLVAR(Iutf8_graph, SV *)
508 PERLVAR(Iutf8_digit, SV *)
509 PERLVAR(Iutf8_upper, SV *)
510 PERLVAR(Iutf8_lower, SV *)
511 PERLVAR(Iutf8_print, SV *)
512 PERLVAR(Iutf8_punct, SV *)
513 PERLVAR(Iutf8_xdigit, SV *)
514 PERLVAR(Iutf8_mark, SV *)
515 PERLVAR(Iutf8_toupper, SV *)
516 PERLVAR(Iutf8_totitle, SV *)
517 PERLVAR(Iutf8_tolower, SV *)
518 PERLVAR(Iutf8_tofold, SV *)
519 PERLVAR(Ilast_swash_hv, HV *)
520 PERLVAR(Ilast_swash_tmps, U8 *)
521 PERLVAR(Ilast_swash_slen, STRLEN)
522 PERLVARA(Ilast_swash_key,10, U8)
523 PERLVAR(Ilast_swash_klen, U8) /* Only needs to store 0-10 */
526 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
529 PERLVARI(Iglob_index, int, 0)
532 PERLVAR(Iparser, yy_parser *) /* current parser state */
534 PERLVAR(Ibitcount, char *)
536 PERLVAR(Ipsig_ptr, SV**)
537 PERLVAR(Ipsig_name, SV**)
539 #if defined(PERL_IMPLICIT_SYS)
540 PERLVAR(IMem, struct IPerlMem*)
541 PERLVAR(IMemShared, struct IPerlMem*)
542 PERLVAR(IMemParse, struct IPerlMem*)
543 PERLVAR(IEnv, struct IPerlEnv*)
544 PERLVAR(IStdIO, struct IPerlStdIO*)
545 PERLVAR(ILIO, struct IPerlLIO*)
546 PERLVAR(IDir, struct IPerlDir*)
547 PERLVAR(ISock, struct IPerlSock*)
548 PERLVAR(IProc, struct IPerlProc*)
551 PERLVAR(Iptr_table, PTR_TBL_t*)
552 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
554 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
556 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
557 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
560 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
561 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
562 PERLVARI(Ihash_seed_set, bool, FALSE) /* Hash initialized? */
563 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
565 #ifdef USE_LOCALE_NUMERIC
567 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
571 #if defined(USE_ITHREADS)
572 PERLVAR(Iregex_pad, SV**) /* All regex objects */
573 PERLVAR(Iregex_padav, AV*) /* All regex objects */
577 #ifdef USE_REENTRANT_API
578 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
583 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
584 /* (MAD = Misc Attribute Decoration) */
585 PERLVARI(Ixmlfp, PerlIO *,NULL)
588 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
589 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
592 PERLVARI(Iperlio, PerlIO *,NULL)
593 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
594 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
597 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
599 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
601 #ifdef PL_OP_SLAB_ALLOC
602 PERLVAR(IOpPtr,I32 **)
603 PERLVARI(IOpSpace,I32,0)
604 PERLVAR(IOpSlab,I32 *)
607 PERLVAR(Iutf8_idstart, SV *)
608 PERLVAR(Iutf8_idcont, SV *)
610 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
612 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
613 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
615 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
617 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
619 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
621 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
623 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
625 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
627 /* Hooks to shared SVs and locks. */
628 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
629 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
631 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
633 /* This reference ensures that the mathoms are linked with perl */
634 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
636 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
638 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
640 /* Force inclusion of both runops options */
641 PERLVARI(Irunops_std, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_standard))
642 PERLVARI(Irunops_dbg, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_debug))
644 /* Stores the PPID */
645 #ifdef THREADS_HAVE_PIDS
646 PERLVARI(Ippid, IV, 0)
649 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
651 PERLVAR(IDBassertion, SV *)
653 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
655 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
656 /* File descriptor to talk to the child which dumps scalars. */
657 PERLVARI(Idumper_fd, int, -1)
660 PERLVAR(Imulti_end, I32) /* last line of multi-line string */
662 #ifdef PERL_IMPLICIT_CONTEXT
663 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
664 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
665 #ifdef PERL_GLOBAL_STRUCT_PRIVATE
666 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
670 #ifdef PERL_TRACK_MEMPOOL
671 /* For use with the memory debugging code in util.c */
672 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
675 #ifdef PERL_DEBUG_READONLY_OPS
676 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
677 PERLVARI(Islab_count, U32, 0) /* Size of the array */
680 PERLVARI(Iisarev, HV*, NULL) /* Reverse map of @ISA dependencies */
682 /* If you are adding a U8 or U16, see the 'Space' comments above on where
683 * there are gaps which currently will be structure padding. */
685 /* Within a stable branch, new variables must be added to the very end, before
686 * this comment, for binary compatibility (the offsets of the old members must
688 * (Don't forget to add your variable also to perl_clone()!)
689 * XSUB.h provides wrapper functions via perlapi.h that make this
690 * irrelevant, but not all code may be expected to #include XSUB.h.