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 *) /* $b */
149 PERLVAR(Iefloatbuf, char *)
150 PERLVAR(Iefloatsize, STRLEN)
154 PERLVAR(Iscreamfirst, I32 *)
155 PERLVAR(Iscreamnext, I32 *)
156 PERLVAR(Ilastscream, SV *)
158 PERLVAR(Ireg_state, struct re_save_state)
160 PERLVAR(Iregdummy, regnode) /* from regcomp.c */
162 PERLVARI(Idumpindent, U16, 4) /* number of blanks per dump
166 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
167 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
169 PERLVARA(Icolors,6, char *) /* from regcomp.c */
171 PERLVARI(Ipeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
172 /* Pointer to peephole optimizer */
174 PERLVARI(Imaxscream, I32, -1)
175 PERLVARI(Ireginterp_cnt,I32, 0) /* Whether "Regexp" was interpolated. */
176 PERLVARI(Iwatchaddr, char **, 0)
177 PERLVAR(Iwatchok, char *)
179 /* the currently active slab in a chain of slabs of regmatch states,
180 * and the currently active state within that slab */
182 PERLVARI(Iregmatch_slab, regmatch_slab *, NULL)
183 PERLVAR(Iregmatch_state, regmatch_state *)
185 /* Put anything new that is pointer aligned here. */
187 PERLVAR(Idelaymagic, U16) /* ($<,$>) = ... */
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 /* mod_perl is special, and also assigns a meaning -1 */
198 PERLVARI(Iperl_destruct_level, signed char, 0)
200 PERLVAR(Iperldb, U32)
202 /* pseudo environmental stuff */
203 PERLVAR(Iorigargc, int)
204 PERLVAR(Iorigargv, char **)
205 PERLVAR(Ienvgv, GV *)
206 PERLVAR(Iincgv, GV *)
207 PERLVAR(Ihintgv, GV *)
208 PERLVAR(Iorigfilename, char *)
209 PERLVAR(Idiehook, SV *)
210 PERLVAR(Iwarnhook, SV *)
213 PERLVAR(Ipatchlevel, SV *)
214 PERLVAR(Ilocalpatches, const char * const *)
215 PERLVARI(Isplitstr, const char *, " ")
217 PERLVAR(Iminus_c, bool)
218 PERLVAR(Ipreprocess, bool)
219 PERLVAR(Iminus_n, bool)
220 PERLVAR(Iminus_p, bool)
221 PERLVAR(Iminus_l, bool)
222 PERLVAR(Iminus_a, bool)
223 PERLVAR(Iminus_F, bool)
224 PERLVAR(Idoswitches, bool)
226 PERLVAR(Iminus_E, bool)
230 =for apidoc mn|bool|PL_dowarn
232 The C variable which corresponds to Perl's $^W warning variable.
238 PERLVAR(Idoextract, bool)
239 PERLVAR(Isawampersand, bool) /* must save all match strings */
240 PERLVAR(Iunsafe, bool)
241 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
242 PERLVAR(Isrand_called, bool)
243 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
244 PERLVAR(Itainting, bool) /* doing taint checks */
245 PERLVAR(Iinplace, char *)
246 PERLVAR(Ie_script, SV *)
248 /* magical thingies */
249 PERLVAR(Ibasetime, Time_t) /* $^T */
250 PERLVAR(Iformfeed, SV *) /* $^L */
253 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
254 /* top fd to pass to subprocesses */
255 PERLVAR(Istatusvalue, I32) /* $? */
257 PERLVAR(Istatusvalue_vms,U32)
259 PERLVAR(Istatusvalue_posix,I32)
262 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
263 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
265 /* shortcuts to various I/O objects */
266 PERLVAR(Istdingv, GV *)
267 PERLVAR(Istderrgv, GV *)
268 PERLVAR(Idefgv, GV *)
269 PERLVAR(Iargvgv, GV *)
270 PERLVAR(Iargvoutgv, GV *)
271 PERLVAR(Iargvout_stack, AV *)
273 /* shortcuts to regexp stuff */
274 PERLVAR(Ireplgv, GV *)
276 /* shortcuts to misc objects */
277 PERLVAR(Ierrgv, GV *)
279 /* shortcuts to debugging objects */
281 PERLVAR(IDBline, GV *)
284 =for apidoc mn|GV *|PL_DBsub
285 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
286 the SV which holds the name of the sub being debugged. This is the C
287 variable which corresponds to Perl's $DB::sub variable. See
290 =for apidoc mn|SV *|PL_DBsingle
291 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
292 boolean which indicates whether subs are being single-stepped.
293 Single-stepping is automatically turned on after every step. This is the C
294 variable which corresponds to Perl's $DB::single variable. See
297 =for apidoc mn|SV *|PL_DBtrace
298 Trace variable used when Perl is run in debugging mode, with the B<-d>
299 switch. This is the C variable which corresponds to Perl's $DB::trace
300 variable. See C<PL_DBsingle>.
305 PERLVAR(IDBsub, GV *)
306 PERLVAR(IDBsingle, SV *)
307 PERLVAR(IDBtrace, SV *)
308 PERLVAR(IDBsignal, SV *)
309 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
312 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
313 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
314 PERLVAR(Icurstname, SV *) /* name of current package */
315 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
316 PERLVAR(Iendav, AV *) /* names of END subroutines */
317 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
318 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
319 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
320 PERLVAR(Istrtab, HV *) /* shared string table */
321 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
323 /* funky return mechanisms */
324 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
326 /* memory management */
327 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
328 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
329 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
330 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
332 /* subprocess state */
333 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
336 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
338 /* current interpreter roots */
339 PERLVAR(Imain_cv, CV *)
340 PERLVAR(Imain_root, OP *)
341 PERLVAR(Imain_start, OP *)
342 PERLVAR(Ieval_root, OP *)
343 PERLVAR(Ieval_start, OP *)
345 /* runtime control stuff */
346 PERLVARI(Icurcopdb, COP *, NULL)
348 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
349 PERLVAR(Ilastfd, int) /* what to preserve mode on */
350 PERLVAR(Ioldname, char *) /* what to preserve mode on */
351 PERLVAR(IArgv, const char **) /* stuff to free from do_aexec, vfork safe */
352 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
353 /* Elements in this array have ';' appended and are injected as a single line
354 into the tokeniser. You can't put any (literal) newlines into any program
355 you stuff in into this array, as the point where it's injected is expecting
356 a single physical line. */
357 PERLVAR(Ipreambleav, AV *)
358 PERLVAR(Imess_sv, SV *)
359 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
360 /* statics moved here for shared library purposes */
361 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
362 PERLVARI(Icv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
363 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
364 PERLVARI(Ilaststype, U16, OP_STAT)
365 PERLVARI(Ilaststatval, int, -1)
367 /* interpreter atexit processing */
368 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
369 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
370 /* list of exit functions */
373 =for apidoc Amn|HV*|PL_modglobal
375 C<PL_modglobal> is a general purpose, interpreter global HV for use by
376 extensions that need to keep information on a per-interpreter basis.
377 In a pinch, it can also be used as a symbol table for extensions
378 to share data among each other. It is a good idea to use keys
379 prefixed by the package name of the extension that owns the data.
384 PERLVAR(Imodglobal, HV *) /* per-interp module data */
386 /* these used to be in global before 5.004_68 */
387 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
389 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
391 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
392 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
393 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
394 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
395 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
397 #ifdef HAVE_INTERP_INTERN
398 PERLVAR(Isys_intern, struct interp_intern)
399 /* platform internals */
402 /* more statics moved here */
403 PERLVAR(IDBcv, CV *) /* from perl.c */
404 PERLVARI(Igeneration, int, 100) /* from op.c */
406 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
407 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
408 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
409 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
411 PERLVAR(Iuid, Uid_t) /* current real user id */
412 PERLVAR(Ieuid, Uid_t) /* current effective user id */
413 PERLVAR(Igid, Gid_t) /* current real group id */
414 PERLVAR(Iegid, Gid_t) /* current effective group id */
415 PERLVARI(Ian, U32, 0) /* malloc sequence number */
416 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
417 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
418 PERLVAR(Iorigalen, U32)
419 PERLVAR(Iorigenviron, char **)
420 #ifdef PERL_USES_PL_PIDSTATUS
421 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
423 PERLVAR(Iosname, char *) /* operating system */
425 PERLVAR(Isighandlerp, Sighandler_t)
427 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
429 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
430 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
432 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
434 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
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 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
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 */
557 #ifdef USE_LOCALE_NUMERIC
559 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
563 #if defined(USE_ITHREADS)
564 PERLVAR(Iregex_pad, SV**) /* All regex objects */
565 PERLVAR(Iregex_padav, AV*) /* All regex objects */
569 #ifdef USE_REENTRANT_API
570 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
573 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
574 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
577 PERLVARI(Iperlio, PerlIO *,NULL)
578 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
579 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
582 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
584 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
586 PERLVAR(Iutf8_idstart, SV *)
587 PERLVAR(Iutf8_idcont, SV *)
589 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
591 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
592 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
594 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
596 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
598 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
600 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
602 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
604 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
606 /* Hooks to shared SVs and locks. */
607 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
608 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
610 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
612 /* This reference ensures that the mathoms are linked with perl */
613 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
615 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
617 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
619 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
621 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
623 PERLVARI(Iisarev, HV*, NULL) /* Reverse map of @ISA dependencies */
625 /* The last unconditional member of the interpreter structure when 5.10.0 was
626 released. The offset of the end of this is baked into a global variable in
627 any shared perl library which will allow a sanity test in future perl
629 #define PERL_LAST_5_10_0_INTERP_MEMBER Iisarev
631 #ifdef PERL_IMPLICIT_CONTEXT
632 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
633 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
634 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
635 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
639 #ifdef PERL_TRACK_MEMPOOL
640 /* For use with the memory debugging code in util.c */
641 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
644 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
645 /* File descriptor to talk to the child which dumps scalars. */
646 PERLVARI(Idumper_fd, int, -1)
649 /* Stores the PPID */
650 #ifdef THREADS_HAVE_PIDS
651 PERLVARI(Ippid, IV, 0)
655 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
656 /* (MAD = Misc Attribute Decoration) */
657 PERLVARI(Ixmlfp, PerlIO *,NULL)
660 #ifdef PL_OP_SLAB_ALLOC
661 PERLVAR(IOpPtr,I32 **)
662 PERLVARI(IOpSpace,I32,0)
663 PERLVAR(IOpSlab,I32 *)
666 #ifdef PERL_DEBUG_READONLY_OPS
667 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
668 PERLVARI(Islab_count, U32, 0) /* Size of the array */
671 /* Can shared object be destroyed */
672 PERLVARI(Idestroyhook, destroyable_proc_t, MEMBER_TO_FPTR(Perl_sv_destroyable))
674 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
675 * above on where there are gaps which currently will be structure padding. */
677 /* Within a stable branch, new variables must be added to the very end, before
678 * this comment, for binary compatibility (the offsets of the old members must
680 * (Don't forget to add your variable also to perl_clone()!)
681 * XSUB.h provides wrapper functions via perlapi.h that make this
682 * irrelevant, but not all code may be expected to #include XSUB.h.