3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 * 2006, 2007, 2008 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 =head1 Per-Interpreter Variables
15 /* These variables are per-interpreter in threaded/multiplicity builds,
18 * Don't forget to re-run embed.pl to propagate changes! */
20 /* New variables must be added to the very end for binary compatibility.
21 * XSUB.h provides wrapper functions via perlapi.h that make this
22 * irrelevant, but not all code may be expected to #include XSUB.h. */
24 /* Don't forget to add your variable also to perl_clone()! */
26 /* The 'I' prefix is only needed for vars that need appropriate #defines
27 * generated when built with or without MULTIPLICITY. It is also used
28 * to generate the appropriate export list for win32.
30 * When building without MULTIPLICITY, these variables will be truly global.
32 * Important ones in the first cache line (if alignment is done right) */
34 PERLVAR(Istack_sp, SV **) /* top of the stack */
36 PERLVAR(Iopsave, OP *)
38 PERLVAR(Iop, OP *) /* currently executing op */
40 PERLVAR(Icurpad, SV **) /* active pad (lexicals+tmps) */
42 PERLVAR(Istack_base, SV **)
43 PERLVAR(Istack_max, SV **)
45 PERLVAR(Iscopestack, I32 *) /* scopes we've ENTERed */
46 /* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be
47 present always, as -DDEUBGGING must be binary compatible with non. */
48 PERLVARI(Iscopestack_name, const char * *, NULL)
49 PERLVAR(Iscopestack_ix, I32)
50 PERLVAR(Iscopestack_max,I32)
52 PERLVAR(Isavestack, ANY *) /* items that need to be restored when
53 LEAVEing scopes we've ENTERed */
54 PERLVAR(Isavestack_ix, I32)
55 PERLVAR(Isavestack_max, I32)
57 PERLVAR(Itmps_stack, SV **) /* mortals we've made */
58 PERLVARI(Itmps_ix, I32, -1)
59 PERLVARI(Itmps_floor, I32, -1)
60 PERLVAR(Itmps_max, I32)
61 PERLVAR(Imodcount, I32) /* how much mod()ification in
64 PERLVAR(Imarkstack, I32 *) /* stack_sp locations we're
66 PERLVAR(Imarkstack_ptr, I32 *)
67 PERLVAR(Imarkstack_max, I32 *)
69 PERLVAR(ISv, SV *) /* used to hold temporary values */
70 PERLVAR(IXpv, XPV *) /* used to hold temporary values */
73 =for apidoc Amn|STRLEN|PL_na
75 A convenience variable which is typically used with C<SvPV> when one
76 doesn't care about the length of the string. It is usually more efficient
77 to either declare a local variable and use that instead or to use the
83 PERLVAR(Ina, STRLEN) /* for use in SvPV when length is
87 PERLVAR(Istatbuf, Stat_t)
88 PERLVAR(Istatcache, Stat_t) /* _ */
89 PERLVAR(Istatgv, GV *)
90 PERLVARI(Istatname, SV *, NULL)
93 PERLVAR(Itimesbuf, struct tms)
96 /* Fields used by magic variables such as $@, $/ and so on */
97 PERLVAR(Icurpm, PMOP *) /* what to do \ interps in REs from */
100 =for apidoc mn|SV*|PL_rs
102 The input record separator - C<$/> in Perl space.
104 =for apidoc mn|GV*|PL_last_in_gv
106 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
108 =for apidoc mn|GV*|PL_ofsgv
110 The glob containing the output field separator - C<*,> in Perl space.
115 PERLVAR(Irs, SV *) /* input record separator $/ */
116 PERLVAR(Ilast_in_gv, GV *) /* GV used in last <FH> */
117 PERLVAR(Iofsgv, GV *) /* GV of output field separator *, */
118 PERLVAR(Idefoutgv, GV *) /* default FH for output */
119 PERLVARI(Ichopset, const char *, " \n-") /* $: */
120 PERLVAR(Iformtarget, SV *)
121 PERLVAR(Ibodytarget, SV *)
122 PERLVAR(Itoptarget, SV *)
125 PERLVAR(Idefstash, HV *) /* main symbol table */
126 PERLVAR(Icurstash, HV *) /* symbol table for current package */
128 PERLVAR(Irestartop, OP *) /* propagating an error from croak? */
129 PERLVAR(Irestartjmpenv, JMPENV *) /* target frame for longjmp in die */
130 PERLVAR(Icurcop, COP *)
131 PERLVAR(Icurstack, AV *) /* THE STACK */
132 PERLVAR(Icurstackinfo, PERL_SI *) /* current stack + context */
133 PERLVAR(Imainstack, AV *) /* the stack when nothing funny is
136 PERLVAR(Itop_env, JMPENV *) /* ptr to current sigjmp environment */
137 PERLVAR(Istart_env, JMPENV) /* empty startup sigjmp environment */
138 PERLVARI(Ierrors, SV *, NULL) /* outstanding queued errors */
140 /* statics "owned" by various functions */
141 PERLVAR(Ihv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
143 PERLVAR(Ilastgotoprobe, OP*) /* from pp_ctl.c */
146 PERLVAR(Isortcop, OP *) /* user defined sort routine */
147 PERLVAR(Isortstash, HV *) /* which is in some package or other */
148 PERLVAR(Ifirstgv, GV *) /* $a */
149 PERLVAR(Isecondgv, GV *) /* $b */
152 PERLVAR(Iefloatbuf, char *)
153 PERLVAR(Iefloatsize, STRLEN)
157 PERLVAR(Iscreamfirst, I32 *)
158 PERLVAR(Iscreamnext, I32 *)
159 PERLVAR(Ilastscream, SV *)
161 PERLVAR(Ireg_state, struct re_save_state)
163 PERLVAR(Iregdummy, regnode) /* from regcomp.c */
165 PERLVARI(Idumpindent, U16, 4) /* number of blanks per dump
169 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
170 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
172 PERLVARA(Icolors,6, char *) /* from regcomp.c */
174 PERLVARI(Ipeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
175 /* Pointer to peephole optimizer */
178 =for apidoc Amn|Perl_ophook_t|PL_opfreehook
180 When non-C<NULL>, the function pointed by this variable will be called each time an OP is freed with the corresponding OP as the argument.
181 This allows extensions to free any extra attribute they have locally attached to an OP.
182 It is also assured to first fire for the parent OP and then for its kids.
184 When you replace this variable, it is considered a good practice to store the possibly previously installed hook and that you recall it inside your own.
189 PERLVARI(Iopfreehook, Perl_ophook_t, 0) /* op_free() hook */
191 PERLVARI(Imaxscream, I32, -1)
192 PERLVARI(Ireginterp_cnt,I32, 0) /* Whether "Regexp" was interpolated. */
193 PERLVARI(Iwatchaddr, char **, 0)
194 PERLVAR(Iwatchok, char *)
196 /* the currently active slab in a chain of slabs of regmatch states,
197 * and the currently active state within that slab */
199 PERLVARI(Iregmatch_slab, regmatch_slab *, NULL)
200 PERLVAR(Iregmatch_state, regmatch_state *)
202 /* Put anything new that is pointer aligned here. */
204 PERLVAR(Idelaymagic, U16) /* ($<,$>) = ... */
205 PERLVAR(Ilocalizing, U8) /* are we processing a local() list? */
206 PERLVAR(Icolorset, bool) /* from regcomp.c */
207 PERLVARI(Idirty, bool, FALSE) /* in the middle of tearing things
209 PERLVAR(Iin_eval, U8) /* trap "fatal" errors? */
210 PERLVAR(Itainted, bool) /* using variables controlled by $< */
212 /* This value may be set when embedding for full cleanup */
213 /* 0=none, 1=full, 2=full with checks */
214 /* mod_perl is special, and also assigns a meaning -1 */
215 PERLVARI(Iperl_destruct_level, signed char, 0)
217 PERLVAR(Iperldb, U32)
219 /* pseudo environmental stuff */
220 PERLVAR(Iorigargc, int)
221 PERLVAR(Iorigargv, char **)
222 PERLVAR(Ienvgv, GV *)
223 PERLVAR(Iincgv, GV *)
224 PERLVAR(Ihintgv, GV *)
225 PERLVAR(Iorigfilename, char *)
226 PERLVAR(Idiehook, SV *)
227 PERLVAR(Iwarnhook, SV *)
230 PERLVAR(Ipatchlevel, SV *)
231 PERLVAR(Ilocalpatches, const char * const *)
232 PERLVARI(Isplitstr, const char *, " ")
234 PERLVAR(Iminus_c, bool)
235 PERLVAR(Iminus_n, bool)
236 PERLVAR(Iminus_p, bool)
237 PERLVAR(Iminus_l, bool)
238 PERLVAR(Iminus_a, bool)
239 PERLVAR(Iminus_F, bool)
240 PERLVAR(Idoswitches, bool)
241 PERLVAR(Iminus_E, bool)
245 =for apidoc mn|bool|PL_dowarn
247 The C variable which corresponds to Perl's $^W warning variable.
253 PERLVAR(Idoextract, bool)
254 PERLVAR(Isawampersand, bool) /* must save all match strings */
255 PERLVAR(Iunsafe, bool)
256 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
257 PERLVAR(Isrand_called, bool)
258 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
259 PERLVAR(Itainting, bool) /* doing taint checks */
261 PERLVAR(Iinplace, char *)
262 PERLVAR(Ie_script, SV *)
264 /* magical thingies */
265 PERLVAR(Ibasetime, Time_t) /* $^T */
266 PERLVAR(Iformfeed, SV *) /* $^L */
269 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
270 /* top fd to pass to subprocesses */
271 PERLVAR(Istatusvalue, I32) /* $? */
273 PERLVAR(Istatusvalue_vms,U32)
275 PERLVAR(Istatusvalue_posix,I32)
278 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
279 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
281 /* shortcuts to various I/O objects */
282 PERLVAR(Istdingv, GV *)
283 PERLVAR(Istderrgv, GV *)
284 PERLVAR(Idefgv, GV *)
285 PERLVAR(Iargvgv, GV *)
286 PERLVAR(Iargvoutgv, GV *)
287 PERLVAR(Iargvout_stack, AV *)
289 /* shortcuts to regexp stuff */
290 PERLVAR(Ireplgv, GV *)
292 /* shortcuts to misc objects */
293 PERLVAR(Ierrgv, GV *)
295 /* shortcuts to debugging objects */
297 PERLVAR(IDBline, GV *)
300 =for apidoc mn|GV *|PL_DBsub
301 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
302 the SV which holds the name of the sub being debugged. This is the C
303 variable which corresponds to Perl's $DB::sub variable. See
306 =for apidoc mn|SV *|PL_DBsingle
307 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
308 boolean which indicates whether subs are being single-stepped.
309 Single-stepping is automatically turned on after every step. This is the C
310 variable which corresponds to Perl's $DB::single variable. See
313 =for apidoc mn|SV *|PL_DBtrace
314 Trace variable used when Perl is run in debugging mode, with the B<-d>
315 switch. This is the C variable which corresponds to Perl's $DB::trace
316 variable. See C<PL_DBsingle>.
321 PERLVAR(IDBsub, GV *)
322 PERLVAR(IDBsingle, SV *)
323 PERLVAR(IDBtrace, SV *)
324 PERLVAR(IDBsignal, SV *)
325 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
328 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
329 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
330 PERLVAR(Icurstname, SV *) /* name of current package */
331 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
332 PERLVAR(Iendav, AV *) /* names of END subroutines */
333 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
334 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
335 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
336 PERLVAR(Istrtab, HV *) /* shared string table */
337 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
339 /* funky return mechanisms */
340 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
342 /* memory management */
343 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
344 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
345 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
346 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
348 /* subprocess state */
349 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
352 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
354 /* current interpreter roots */
355 PERLVAR(Imain_cv, CV *)
356 PERLVAR(Imain_root, OP *)
357 PERLVAR(Imain_start, OP *)
358 PERLVAR(Ieval_root, OP *)
359 PERLVAR(Ieval_start, OP *)
361 /* runtime control stuff */
362 PERLVARI(Icurcopdb, COP *, NULL)
364 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
365 PERLVAR(Ilastfd, int) /* what to preserve mode on */
366 PERLVAR(Ioldname, char *) /* what to preserve mode on */
367 PERLVAR(IArgv, const char **) /* stuff to free from do_aexec, vfork safe */
368 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
369 /* Elements in this array have ';' appended and are injected as a single line
370 into the tokeniser. You can't put any (literal) newlines into any program
371 you stuff in into this array, as the point where it's injected is expecting
372 a single physical line. */
373 PERLVAR(Ipreambleav, AV *)
374 PERLVAR(Imess_sv, SV *)
375 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
376 /* statics moved here for shared library purposes */
377 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
378 PERLVARI(Icv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
379 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
380 PERLVARI(Ilaststype, U16, OP_STAT)
381 PERLVARI(Ilaststatval, int, -1)
383 /* interpreter atexit processing */
384 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
385 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
386 /* list of exit functions */
389 =for apidoc Amn|HV*|PL_modglobal
391 C<PL_modglobal> is a general purpose, interpreter global HV for use by
392 extensions that need to keep information on a per-interpreter basis.
393 In a pinch, it can also be used as a symbol table for extensions
394 to share data among each other. It is a good idea to use keys
395 prefixed by the package name of the extension that owns the data.
400 PERLVAR(Imodglobal, HV *) /* per-interp module data */
402 /* these used to be in global before 5.004_68 */
403 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
405 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
407 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
408 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
409 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
410 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
411 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
413 #ifdef HAVE_INTERP_INTERN
414 PERLVAR(Isys_intern, struct interp_intern)
415 /* platform internals */
418 /* more statics moved here */
419 PERLVAR(IDBcv, CV *) /* from perl.c */
420 PERLVARI(Igeneration, int, 100) /* from op.c */
422 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
423 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
424 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
425 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
427 PERLVAR(Iuid, Uid_t) /* current real user id */
428 PERLVAR(Ieuid, Uid_t) /* current effective user id */
429 PERLVAR(Igid, Gid_t) /* current real group id */
430 PERLVAR(Iegid, Gid_t) /* current effective group id */
431 PERLVARI(Ian, U32, 0) /* malloc sequence number */
432 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
433 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
434 PERLVAR(Iorigalen, U32)
435 PERLVAR(Iorigenviron, char **)
436 #ifdef PERL_USES_PL_PIDSTATUS
437 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
439 PERLVAR(Iosname, char *) /* operating system */
441 PERLVAR(Isighandlerp, Sighandler_t)
443 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
445 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
446 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
448 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
450 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
453 =for apidoc Amn|SV|PL_sv_undef
454 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
456 =for apidoc Amn|SV|PL_sv_no
457 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
460 =for apidoc Amn|SV|PL_sv_yes
461 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
467 PERLVAR(Isv_undef, SV)
471 PERLVAR(Isubname, SV *) /* name of current subroutine */
473 PERLVAR(Isubline, I32) /* line this subroutine began on */
474 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
476 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
477 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
479 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
481 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
483 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
485 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
486 PERLVARI(Ibreakable_sub_gen, U32, 0)
488 PERLVARI(Iamagic_generation, long, 0)
490 #ifdef USE_LOCALE_COLLATE
491 PERLVAR(Icollation_name,char *) /* Name of current collation */
492 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
493 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
494 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
495 PERLVARI(Icollation_standard, bool, TRUE)
496 /* Assume simple collation */
497 #endif /* USE_LOCALE_COLLATE */
500 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
505 PERLVARI(Iutf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
509 #ifdef USE_LOCALE_NUMERIC
511 PERLVARI(Inumeric_standard, bool, TRUE)
512 /* Assume simple numerics */
513 PERLVARI(Inumeric_local, bool, TRUE)
514 /* Assume local numerics */
515 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
516 #endif /* !USE_LOCALE_NUMERIC */
518 /* utf8 character classes */
519 PERLVAR(Iutf8_alnum, SV *)
520 PERLVAR(Iutf8_ascii, SV *)
521 PERLVAR(Iutf8_alpha, SV *)
522 PERLVAR(Iutf8_space, SV *)
523 PERLVAR(Iutf8_perl_space, SV *)
524 PERLVAR(Iutf8_perl_word, SV *)
525 PERLVAR(Iutf8_posix_digit, SV *)
526 PERLVAR(Iutf8_cntrl, SV *)
527 PERLVAR(Iutf8_graph, SV *)
528 PERLVAR(Iutf8_digit, SV *)
529 PERLVAR(Iutf8_upper, SV *)
530 PERLVAR(Iutf8_lower, SV *)
531 PERLVAR(Iutf8_print, SV *)
532 PERLVAR(Iutf8_punct, SV *)
533 PERLVAR(Iutf8_xdigit, SV *)
534 PERLVAR(Iutf8_mark, SV *)
535 PERLVAR(Iutf8_X_begin, SV *)
536 PERLVAR(Iutf8_X_extend, SV *)
537 PERLVAR(Iutf8_X_prepend, SV *)
538 PERLVAR(Iutf8_X_non_hangul, SV *)
539 PERLVAR(Iutf8_X_L, SV *)
540 PERLVAR(Iutf8_X_LV, SV *)
541 PERLVAR(Iutf8_X_LVT, SV *)
542 PERLVAR(Iutf8_X_T, SV *)
543 PERLVAR(Iutf8_X_V, SV *)
544 PERLVAR(Iutf8_X_LV_LVT_V, SV *)
545 PERLVAR(Iutf8_toupper, SV *)
546 PERLVAR(Iutf8_totitle, SV *)
547 PERLVAR(Iutf8_tolower, SV *)
548 PERLVAR(Iutf8_tofold, SV *)
549 PERLVAR(Ilast_swash_hv, HV *)
550 PERLVAR(Ilast_swash_tmps, U8 *)
551 PERLVAR(Ilast_swash_slen, STRLEN)
552 PERLVARA(Ilast_swash_key,10, U8)
553 PERLVAR(Ilast_swash_klen, U8) /* Only needs to store 0-10 */
556 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
559 PERLVAR(Ipad_reset_pending, bool) /* reset pad on next attempted alloc */
561 PERLVARI(Iglob_index, int, 0)
564 PERLVAR(Iparser, yy_parser *) /* current parser state */
566 /* Array of signal handlers, indexed by signal number, through which the C
567 signal handler dispatches. */
568 PERLVAR(Ipsig_ptr, SV**)
569 /* Array of names of signals, indexed by signal number, for (re)use as the first
570 argument to a signal handler. Only one block of memory is allocated for
571 both psig_name and psig_ptr. */
572 PERLVAR(Ipsig_name, SV**)
574 #if defined(PERL_IMPLICIT_SYS)
575 PERLVAR(IMem, struct IPerlMem*)
576 PERLVAR(IMemShared, struct IPerlMem*)
577 PERLVAR(IMemParse, struct IPerlMem*)
578 PERLVAR(IEnv, struct IPerlEnv*)
579 PERLVAR(IStdIO, struct IPerlStdIO*)
580 PERLVAR(ILIO, struct IPerlLIO*)
581 PERLVAR(IDir, struct IPerlDir*)
582 PERLVAR(ISock, struct IPerlSock*)
583 PERLVAR(IProc, struct IPerlProc*)
586 PERLVAR(Iptr_table, PTR_TBL_t*)
587 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
589 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
592 #ifdef USE_LOCALE_NUMERIC
594 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
598 #if defined(USE_ITHREADS)
599 PERLVAR(Iregex_pad, SV**) /* Shortcut into the array of
601 PERLVAR(Iregex_padav, AV*) /* All regex objects, indexed via the
602 values in op_pmoffset of pmop.
603 Entry 0 is an SV whose PV is a
604 "packed" list of IVs listing
605 the now-free slots in the array */
608 #ifdef USE_REENTRANT_API
609 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
612 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
613 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
616 PERLVARI(Iperlio, PerlIO *,NULL)
617 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
618 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
621 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
623 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
625 PERLVAR(Iutf8_idstart, SV *)
626 PERLVAR(Iutf8_idcont, SV *)
628 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
630 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
631 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
633 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
635 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
637 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
639 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
641 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
643 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
645 /* Hooks to shared SVs and locks. */
646 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
647 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
649 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
651 /* This reference ensures that the mathoms are linked with perl */
652 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
654 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
656 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
658 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
660 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
662 PERLVARI(Iisarev, HV*, NULL) /* Reverse map of @ISA dependencies */
664 /* The last unconditional member of the interpreter structure when 5.10.0 was
665 released. The offset of the end of this is baked into a global variable in
666 any shared perl library which will allow a sanity test in future perl
668 #define PERL_LAST_5_10_0_INTERP_MEMBER Iisarev
670 #ifdef PERL_IMPLICIT_CONTEXT
671 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
672 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
673 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
674 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
678 #ifdef PERL_TRACK_MEMPOOL
679 /* For use with the memory debugging code in util.c */
680 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
683 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
684 /* File descriptor to talk to the child which dumps scalars. */
685 PERLVARI(Idumper_fd, int, -1)
688 /* Stores the PPID */
689 #ifdef THREADS_HAVE_PIDS
690 PERLVARI(Ippid, IV, 0)
694 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
695 /* (MAD = Misc Attribute Decoration) */
696 PERLVARI(Ixmlfp, PerlIO *,NULL)
699 #ifdef PL_OP_SLAB_ALLOC
700 PERLVAR(IOpPtr,I32 **)
701 PERLVARI(IOpSpace,I32,0)
702 PERLVAR(IOpSlab,I32 *)
705 #ifdef PERL_DEBUG_READONLY_OPS
706 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
707 PERLVARI(Islab_count, U32, 0) /* Size of the array */
710 /* Can shared object be destroyed */
711 PERLVARI(Idestroyhook, destroyable_proc_t, MEMBER_TO_FPTR(Perl_sv_destroyable))
713 #ifdef DEBUG_LEAKING_SCALARS
714 PERLVARI(Isv_serial, U32, 0) /* SV serial number, used in sv.c */
717 /* Register of known Method Resolution Orders.
718 What this actually points to is an implementation detail (it may change to
719 a structure incorporating a reference count - use mro_get_from_name to
720 retrieve a C<struct mro_alg *> */
721 PERLVAR(Iregistered_mros, HV *)
723 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
724 * above on where there are gaps which currently will be structure padding. */
726 /* Within a stable branch, new variables must be added to the very end, before
727 * this comment, for binary compatibility (the offsets of the old members must
729 * (Don't forget to add your variable also to perl_clone()!)
730 * XSUB.h provides wrapper functions via perlapi.h that make this
731 * irrelevant, but not all code may be expected to #include XSUB.h.