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(Iapiversion, SV *)
232 PERLVAR(Ilocalpatches, const char * const *)
233 PERLVARI(Isplitstr, const char *, " ")
235 PERLVAR(Iminus_c, bool)
236 PERLVAR(Iminus_n, bool)
237 PERLVAR(Iminus_p, bool)
238 PERLVAR(Iminus_l, bool)
239 PERLVAR(Iminus_a, bool)
240 PERLVAR(Iminus_F, bool)
241 PERLVAR(Idoswitches, bool)
242 PERLVAR(Iminus_E, bool)
246 =for apidoc mn|bool|PL_dowarn
248 The C variable which corresponds to Perl's $^W warning variable.
254 PERLVAR(Idoextract, bool)
255 PERLVAR(Isawampersand, bool) /* must save all match strings */
256 PERLVAR(Iunsafe, bool)
257 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
258 PERLVAR(Isrand_called, bool)
259 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
260 PERLVAR(Itainting, bool) /* doing taint checks */
261 PERLVARI(Iin_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */
262 PERLVAR(Iinplace, char *)
263 PERLVAR(Ie_script, SV *)
265 /* magical thingies */
266 PERLVAR(Ibasetime, Time_t) /* $^T */
267 PERLVAR(Iformfeed, SV *) /* $^L */
270 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
271 /* top fd to pass to subprocesses */
272 PERLVAR(Istatusvalue, I32) /* $? */
274 PERLVAR(Istatusvalue_vms,U32)
276 PERLVAR(Istatusvalue_posix,I32)
279 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
280 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
282 /* shortcuts to various I/O objects */
283 PERLVAR(Istdingv, GV *) /* *STDIN */
284 PERLVAR(Istderrgv, GV *) /* *STDERR */
285 PERLVAR(Idefgv, GV *)
286 PERLVAR(Iargvgv, GV *) /* *ARGV */
287 PERLVAR(Iargvoutgv, GV *) /* *ARGVOUT */
288 PERLVAR(Iargvout_stack, AV *)
290 /* shortcuts to regexp stuff */
291 PERLVAR(Ireplgv, GV *) /* *^R */
293 /* shortcuts to misc objects */
294 PERLVAR(Ierrgv, GV *) /* *@ */
296 /* shortcuts to debugging objects */
297 PERLVAR(IDBgv, GV *) /* *DB::DB */
298 PERLVAR(IDBline, GV *) /* *DB::line */
301 =for apidoc mn|GV *|PL_DBsub
302 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
303 the SV which holds the name of the sub being debugged. This is the C
304 variable which corresponds to Perl's $DB::sub variable. See
307 =for apidoc mn|SV *|PL_DBsingle
308 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
309 boolean which indicates whether subs are being single-stepped.
310 Single-stepping is automatically turned on after every step. This is the C
311 variable which corresponds to Perl's $DB::single variable. See
314 =for apidoc mn|SV *|PL_DBtrace
315 Trace variable used when Perl is run in debugging mode, with the B<-d>
316 switch. This is the C variable which corresponds to Perl's $DB::trace
317 variable. See C<PL_DBsingle>.
322 PERLVAR(IDBsub, GV *) /* *DB::sub */
323 PERLVAR(IDBsingle, SV *) /* $DB::single */
324 PERLVAR(IDBtrace, SV *) /* $DB::trace */
325 PERLVAR(IDBsignal, SV *) /* $DB::signal */
326 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
329 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
330 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
331 PERLVAR(Icurstname, SV *) /* name of current package */
332 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
333 PERLVAR(Iendav, AV *) /* names of END subroutines */
334 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
335 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
336 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
337 PERLVAR(Istrtab, HV *) /* shared string table */
338 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
340 /* funky return mechanisms */
341 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
343 /* memory management */
344 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
345 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
346 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
347 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
349 /* subprocess state */
350 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
353 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
355 /* current interpreter roots */
356 PERLVAR(Imain_cv, CV *)
357 PERLVAR(Imain_root, OP *)
358 PERLVAR(Imain_start, OP *)
359 PERLVAR(Ieval_root, OP *)
360 PERLVAR(Ieval_start, OP *)
362 /* runtime control stuff */
363 PERLVARI(Icurcopdb, COP *, NULL)
365 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
366 PERLVAR(Ilastfd, int) /* what to preserve mode on */
367 PERLVAR(Ioldname, char *) /* what to preserve mode on */
368 PERLVAR(IArgv, const char **) /* stuff to free from do_aexec, vfork safe */
369 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
370 /* Elements in this array have ';' appended and are injected as a single line
371 into the tokeniser. You can't put any (literal) newlines into any program
372 you stuff in into this array, as the point where it's injected is expecting
373 a single physical line. */
374 PERLVAR(Ipreambleav, AV *)
375 PERLVAR(Imess_sv, SV *)
376 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
377 /* statics moved here for shared library purposes */
378 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
379 PERLVARI(Icv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
380 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
381 PERLVARI(Ilaststype, U16, OP_STAT)
382 PERLVARI(Ilaststatval, int, -1)
384 /* interpreter atexit processing */
385 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
386 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
387 /* list of exit functions */
390 =for apidoc Amn|HV*|PL_modglobal
392 C<PL_modglobal> is a general purpose, interpreter global HV for use by
393 extensions that need to keep information on a per-interpreter basis.
394 In a pinch, it can also be used as a symbol table for extensions
395 to share data among each other. It is a good idea to use keys
396 prefixed by the package name of the extension that owns the data.
401 PERLVAR(Imodglobal, HV *) /* per-interp module data */
403 /* these used to be in global before 5.004_68 */
404 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
406 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
408 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
409 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
410 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
411 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
412 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
414 #ifdef HAVE_INTERP_INTERN
415 PERLVAR(Isys_intern, struct interp_intern)
416 /* platform internals */
419 /* more statics moved here */
420 PERLVAR(IDBcv, CV *) /* from perl.c */
421 PERLVARI(Igeneration, int, 100) /* from op.c */
423 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
424 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
425 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
426 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
428 PERLVAR(Iuid, Uid_t) /* current real user id */
429 PERLVAR(Ieuid, Uid_t) /* current effective user id */
430 PERLVAR(Igid, Gid_t) /* current real group id */
431 PERLVAR(Iegid, Gid_t) /* current effective group id */
432 PERLVARI(Ian, U32, 0) /* malloc sequence number */
433 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
434 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
435 PERLVAR(Iorigalen, U32)
436 PERLVAR(Iorigenviron, char **)
437 #ifdef PERL_USES_PL_PIDSTATUS
438 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
440 PERLVAR(Iosname, char *) /* operating system */
442 PERLVAR(Isighandlerp, Sighandler_t)
444 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
446 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
447 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
449 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
451 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
454 =for apidoc Amn|SV|PL_sv_undef
455 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
457 =for apidoc Amn|SV|PL_sv_no
458 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
461 =for apidoc Amn|SV|PL_sv_yes
462 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
468 PERLVAR(Isv_undef, SV)
472 PERLVAR(Isubname, SV *) /* name of current subroutine */
474 PERLVAR(Isubline, I32) /* line this subroutine began on */
475 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
477 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
478 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
480 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
482 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
484 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
486 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
487 PERLVARI(Ibreakable_sub_gen, U32, 0)
489 PERLVARI(Iamagic_generation, long, 0)
491 #ifdef USE_LOCALE_COLLATE
492 PERLVAR(Icollation_name,char *) /* Name of current collation */
493 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
494 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
495 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
496 PERLVARI(Icollation_standard, bool, TRUE)
497 /* Assume simple collation */
498 #endif /* USE_LOCALE_COLLATE */
501 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
506 PERLVARI(Iutf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
510 #ifdef USE_LOCALE_NUMERIC
512 PERLVARI(Inumeric_standard, bool, TRUE)
513 /* Assume simple numerics */
514 PERLVARI(Inumeric_local, bool, TRUE)
515 /* Assume local numerics */
516 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
517 #endif /* !USE_LOCALE_NUMERIC */
519 /* utf8 character classes */
520 PERLVAR(Iutf8_alnum, SV *)
521 PERLVAR(Iutf8_ascii, SV *)
522 PERLVAR(Iutf8_alpha, SV *)
523 PERLVAR(Iutf8_space, SV *)
524 PERLVAR(Iutf8_perl_space, SV *)
525 PERLVAR(Iutf8_perl_word, SV *)
526 PERLVAR(Iutf8_posix_digit, SV *)
527 PERLVAR(Iutf8_cntrl, SV *)
528 PERLVAR(Iutf8_graph, SV *)
529 PERLVAR(Iutf8_digit, SV *)
530 PERLVAR(Iutf8_upper, SV *)
531 PERLVAR(Iutf8_lower, SV *)
532 PERLVAR(Iutf8_print, SV *)
533 PERLVAR(Iutf8_punct, SV *)
534 PERLVAR(Iutf8_xdigit, SV *)
535 PERLVAR(Iutf8_mark, SV *)
536 PERLVAR(Iutf8_X_begin, SV *)
537 PERLVAR(Iutf8_X_extend, SV *)
538 PERLVAR(Iutf8_X_prepend, SV *)
539 PERLVAR(Iutf8_X_non_hangul, SV *)
540 PERLVAR(Iutf8_X_L, SV *)
541 PERLVAR(Iutf8_X_LV, SV *)
542 PERLVAR(Iutf8_X_LVT, SV *)
543 PERLVAR(Iutf8_X_T, SV *)
544 PERLVAR(Iutf8_X_V, SV *)
545 PERLVAR(Iutf8_X_LV_LVT_V, SV *)
546 PERLVAR(Iutf8_toupper, SV *)
547 PERLVAR(Iutf8_totitle, SV *)
548 PERLVAR(Iutf8_tolower, SV *)
549 PERLVAR(Iutf8_tofold, SV *)
550 PERLVAR(Ilast_swash_hv, HV *)
551 PERLVAR(Ilast_swash_tmps, U8 *)
552 PERLVAR(Ilast_swash_slen, STRLEN)
553 PERLVARA(Ilast_swash_key,10, U8)
554 PERLVAR(Ilast_swash_klen, U8) /* Only needs to store 0-10 */
557 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
560 PERLVAR(Ipad_reset_pending, bool) /* reset pad on next attempted alloc */
562 PERLVARI(Iglob_index, int, 0)
565 PERLVAR(Iparser, yy_parser *) /* current parser state */
567 /* Array of signal handlers, indexed by signal number, through which the C
568 signal handler dispatches. */
569 PERLVAR(Ipsig_ptr, SV**)
570 /* Array of names of signals, indexed by signal number, for (re)use as the first
571 argument to a signal handler. Only one block of memory is allocated for
572 both psig_name and psig_ptr. */
573 PERLVAR(Ipsig_name, SV**)
575 #if defined(PERL_IMPLICIT_SYS)
576 PERLVAR(IMem, struct IPerlMem*)
577 PERLVAR(IMemShared, struct IPerlMem*)
578 PERLVAR(IMemParse, struct IPerlMem*)
579 PERLVAR(IEnv, struct IPerlEnv*)
580 PERLVAR(IStdIO, struct IPerlStdIO*)
581 PERLVAR(ILIO, struct IPerlLIO*)
582 PERLVAR(IDir, struct IPerlDir*)
583 PERLVAR(ISock, struct IPerlSock*)
584 PERLVAR(IProc, struct IPerlProc*)
587 PERLVAR(Iptr_table, PTR_TBL_t*)
588 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
590 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
593 #ifdef USE_LOCALE_NUMERIC
595 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
599 #if defined(USE_ITHREADS)
600 PERLVAR(Iregex_pad, SV**) /* Shortcut into the array of
602 PERLVAR(Iregex_padav, AV*) /* All regex objects, indexed via the
603 values in op_pmoffset of pmop.
604 Entry 0 is an SV whose PV is a
605 "packed" list of IVs listing
606 the now-free slots in the array */
609 #ifdef USE_REENTRANT_API
610 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
613 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
614 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
617 PERLVARI(Iperlio, PerlIO *,NULL)
618 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
619 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
622 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
624 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
626 PERLVAR(Iutf8_idstart, SV *)
627 PERLVAR(Iutf8_idcont, SV *)
629 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
631 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
632 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
634 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
636 /* Space for an int */
638 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
640 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
642 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
644 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
646 /* Hooks to shared SVs and locks. */
647 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
648 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
650 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
652 /* This reference ensures that the mathoms are linked with perl */
653 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
655 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
657 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
659 PERLVARI(Isignalhook, despatch_signals_proc_t, MEMBER_TO_FPTR(Perl_despatch_signals))
661 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
663 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
665 PERLVARI(Iisarev, HV*, NULL) /* Reverse map of @ISA dependencies */
667 /* The last unconditional member of the interpreter structure when 5.10.0 was
668 released. The offset of the end of this is baked into a global variable in
669 any shared perl library which will allow a sanity test in future perl
671 #define PERL_LAST_5_10_0_INTERP_MEMBER Iisarev
673 #ifdef PERL_IMPLICIT_CONTEXT
674 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
675 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
676 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
677 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
681 #ifdef PERL_TRACK_MEMPOOL
682 /* For use with the memory debugging code in util.c */
683 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
686 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
687 /* File descriptor to talk to the child which dumps scalars. */
688 PERLVARI(Idumper_fd, int, -1)
691 /* Stores the PPID */
692 #ifdef THREADS_HAVE_PIDS
693 PERLVARI(Ippid, IV, 0)
697 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
698 /* (MAD = Misc Attribute Decoration) */
699 PERLVARI(Ixmlfp, PerlIO *,NULL)
702 #ifdef PL_OP_SLAB_ALLOC
703 PERLVAR(IOpPtr,I32 **)
704 PERLVARI(IOpSpace,I32,0)
705 PERLVAR(IOpSlab,I32 *)
708 #ifdef PERL_DEBUG_READONLY_OPS
709 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
710 PERLVARI(Islab_count, U32, 0) /* Size of the array */
713 /* Can shared object be destroyed */
714 PERLVARI(Idestroyhook, destroyable_proc_t, MEMBER_TO_FPTR(Perl_sv_destroyable))
716 #ifdef DEBUG_LEAKING_SCALARS
717 PERLVARI(Isv_serial, U32, 0) /* SV serial number, used in sv.c */
720 /* Register of known Method Resolution Orders.
721 What this actually points to is an implementation detail (it may change to
722 a structure incorporating a reference count - use mro_get_from_name to
723 retrieve a C<struct mro_alg *> */
724 PERLVAR(Iregistered_mros, HV *)
726 /* Compile-time block start/end hooks */
727 PERLVAR(Iblockhooks, AV *)
729 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
730 * above on where there are gaps which currently will be structure padding. */
732 /* Within a stable branch, new variables must be added to the very end, before
733 * this comment, for binary compatibility (the offsets of the old members must
735 * (Don't forget to add your variable also to perl_clone()!)
736 * XSUB.h provides wrapper functions via perlapi.h that make this
737 * irrelevant, but not all code may be expected to #include XSUB.h.