1 /***********************************************/
2 /* Global only to current interpreter instance */
3 /***********************************************/
5 /* Don't forget to re-run embed.pl to propagate changes! */
7 /* New variables must be added to the very end for binary compatibility.
8 * XSUB.h provides wrapper functions via perlapi.h that make this
9 * irrelevant, but not all code may be expected to #include XSUB.h. */
11 /* Don't forget to add your variable also to perl_clone()! */
13 /* The 'I' prefix is only needed for vars that need appropriate #defines
14 * generated when built with or without MULTIPLICITY. It is also used
15 * to generate the appropriate export list for win32.
17 * When building without MULTIPLICITY, these variables will be truly global. */
19 /* pseudo environmental stuff */
20 PERLVAR(Iorigargc, int)
21 PERLVAR(Iorigargv, char **)
24 PERLVAR(Ihintgv, GV *)
25 PERLVAR(Iorigfilename, char *)
26 PERLVAR(Idiehook, SV *)
27 PERLVAR(Iwarnhook, SV *)
30 PERLVAR(Iminus_c, bool)
31 PERLVAR(Ipatchlevel, SV *)
32 PERLVAR(Ilocalpatches, const char * const *)
33 PERLVARI(Isplitstr, const char *, " ")
34 PERLVAR(Ipreprocess, bool)
35 PERLVAR(Iminus_n, bool)
36 PERLVAR(Iminus_p, bool)
37 PERLVAR(Iminus_l, bool)
38 PERLVAR(Iminus_a, bool)
39 PERLVAR(Iminus_F, bool)
40 PERLVAR(Idoswitches, bool)
41 PERLVAR(Iminus_E, bool)
44 =head1 Global Variables
46 =for apidoc mn|bool|PL_dowarn
48 The C variable which corresponds to Perl's $^W warning variable.
54 PERLVAR(Iwidesyscalls, bool) /* unused since 5.8.1 */
55 PERLVAR(Idoextract, bool)
56 PERLVAR(Isawampersand, bool) /* must save all match strings */
57 PERLVAR(Iunsafe, bool)
58 PERLVAR(Iinplace, char *)
59 PERLVAR(Ie_script, SV *)
62 /* This value may be set when embedding for full cleanup */
63 /* 0=none, 1=full, 2=full with checks */
64 PERLVARI(Iperl_destruct_level, int, 0)
66 /* magical thingies */
67 PERLVAR(Ibasetime, Time_t) /* $^T */
68 PERLVAR(Iformfeed, SV *) /* $^L */
71 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
72 /* top fd to pass to subprocesses */
73 PERLVAR(Istatusvalue, I32) /* $? */
74 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
76 PERLVAR(Istatusvalue_vms,U32)
78 PERLVAR(Istatusvalue_posix,I32)
81 /* shortcuts to various I/O objects */
82 PERLVAR(Istdingv, GV *)
83 PERLVAR(Istderrgv, GV *)
85 PERLVAR(Iargvgv, GV *)
86 PERLVAR(Iargvoutgv, GV *)
87 PERLVAR(Iargvout_stack, AV *)
89 /* shortcuts to regexp stuff */
90 /* this one needs to be moved to thrdvar.h and accessed via
91 * find_threadsv() when USE_5005THREADS */
92 PERLVAR(Ireplgv, GV *)
94 /* shortcuts to misc objects */
97 /* shortcuts to debugging objects */
99 PERLVAR(IDBline, GV *)
102 =for apidoc mn|GV *|PL_DBsub
103 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
104 the SV which holds the name of the sub being debugged. This is the C
105 variable which corresponds to Perl's $DB::sub variable. See
108 =for apidoc mn|SV *|PL_DBsingle
109 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
110 boolean which indicates whether subs are being single-stepped.
111 Single-stepping is automatically turned on after every step. This is the C
112 variable which corresponds to Perl's $DB::single variable. See
115 =for apidoc mn|SV *|PL_DBtrace
116 Trace variable used when Perl is run in debugging mode, with the B<-d>
117 switch. This is the C variable which corresponds to Perl's $DB::trace
118 variable. See C<PL_DBsingle>.
123 PERLVAR(IDBsub, GV *)
124 PERLVAR(IDBsingle, SV *)
125 PERLVAR(IDBtrace, SV *)
126 PERLVAR(IDBsignal, SV *)
127 PERLVAR(Ilineary, AV *) /* lines of script for debugger */
128 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
131 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
132 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
133 PERLVAR(Icurstname, SV *) /* name of current package */
134 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
135 PERLVAR(Iendav, AV *) /* names of END subroutines */
136 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
137 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
138 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
139 PERLVAR(Istrtab, HV *) /* shared string table */
140 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
142 /* memory management */
143 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
144 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
145 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
146 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
148 /* funky return mechanisms */
149 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
151 /* subprocess state */
152 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
155 PERLVAR(Itainting, bool) /* doing taint checks */
156 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
158 /* current interpreter roots */
159 PERLVAR(Imain_cv, CV *)
160 PERLVAR(Imain_root, OP *)
161 PERLVAR(Imain_start, OP *)
162 PERLVAR(Ieval_root, OP *)
163 PERLVAR(Ieval_start, OP *)
165 /* runtime control stuff */
166 PERLVARI(Icurcopdb, COP *, NULL)
167 PERLVARI(Icopline, line_t, NOLINE)
169 /* statics moved here for shared library purposes */
170 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
171 PERLVAR(Ilastfd, int) /* what to preserve mode on */
172 PERLVAR(Ioldname, char *) /* what to preserve mode on */
173 PERLVAR(IArgv, char **) /* stuff to free from do_aexec, vfork safe */
174 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
175 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
176 PERLVAR(Ipreambleav, AV *)
177 PERLVARI(Ilaststatval, int, -1)
178 PERLVARI(Ilaststype, I32, OP_STAT)
179 PERLVAR(Imess_sv, SV *)
181 /* XXX shouldn't these be per-thread? --GSAR */
182 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
184 /* interpreter atexit processing */
185 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
186 /* list of exit functions */
187 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
190 =for apidoc Amn|HV*|PL_modglobal
192 C<PL_modglobal> is a general purpose, interpreter global HV for use by
193 extensions that need to keep information on a per-interpreter basis.
194 In a pinch, it can also be used as a symbol table for extensions
195 to share data among each other. It is a good idea to use keys
196 prefixed by the package name of the extension that owns the data.
201 PERLVAR(Imodglobal, HV *) /* per-interp module data */
203 /* these used to be in global before 5.004_68 */
204 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
205 PERLVARI(Irsfp, PerlIO * VOL, NULL) /* current source file pointer */
206 PERLVARI(Irsfp_filters, AV *, NULL) /* keeps active source filters */
208 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
210 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
211 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
212 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
213 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
214 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
216 #ifdef HAVE_INTERP_INTERN
217 PERLVAR(Isys_intern, struct interp_intern)
218 /* platform internals */
221 /* more statics moved here */
222 PERLVARI(Igeneration, int, 100) /* from op.c */
223 PERLVAR(IDBcv, CV *) /* from perl.c */
225 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
226 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
228 PERLVAR(Ilinestart, char *) /* beg. of most recently read line */
230 PERLVAR(Iuid, Uid_t) /* current real user id */
231 PERLVAR(Ieuid, Uid_t) /* current effective user id */
232 PERLVAR(Igid, Gid_t) /* current real group id */
233 PERLVAR(Iegid, Gid_t) /* current effective group id */
234 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
235 PERLVARI(Ian, U32, 0) /* malloc sequence number */
236 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
237 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
238 PERLVAR(Iorigenviron, char **)
239 PERLVAR(Iorigalen, U32)
240 #ifdef PERL_USES_PL_PIDSTATUS
241 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
243 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
244 PERLVAR(Iosname, char *) /* operating system */
246 PERLVAR(Isighandlerp, Sighandler_t)
248 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
250 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
251 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
253 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
255 PERLVARA(Itokenbuf,256, char)
258 =for apidoc Amn|SV|PL_sv_undef
259 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
261 =for apidoc Amn|SV|PL_sv_no
262 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
265 =for apidoc Amn|SV|PL_sv_yes
266 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
272 PERLVAR(Isv_undef, SV)
277 PERLVARI(Icshname, const char *, CSH)
278 PERLVARI(Icshlen, I32, 0)
281 PERLVAR(Ilex_state, U32) /* next token is determined */
283 /* What we know when we're in LEX_KNOWNEXT state. */
285 PERLVARA(Inexttoke,5, NEXTTOKE) /* value of next token, if any */
286 PERLVAR(Icurforce, I32)
288 PERLVARA(Inextval,5, YYSTYPE) /* value of next token, if any */
289 PERLVARA(Inexttype,5, I32) /* type of next token */
290 PERLVAR(Inexttoke, I32)
293 PERLVAR(Ilinestr, SV *)
294 PERLVAR(Ibufptr, char *)
295 PERLVAR(Ioldbufptr, char *)
296 PERLVAR(Ioldoldbufptr, char *)
297 PERLVAR(Ibufend, char *)
298 PERLVARI(Iexpect,int, XSTATE) /* how to interpret ambiguous tokens */
300 PERLVAR(Imulti_end, I32) /* last line of multi-line string */
302 PERLVAR(Ierror_count, I32) /* how many errors so far, max 10 */
303 PERLVAR(Isubline, I32) /* line this subroutine began on */
304 PERLVAR(Isubname, SV *) /* name of current subroutine */
306 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
307 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
308 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
309 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
310 PERLVAR(Ipad_reset_pending, I32) /* reset pad on next attempted alloc */
312 PERLVAR(Ilast_uni, char *) /* position of last named-unary op */
313 PERLVAR(Ilast_lop, char *) /* position of last list operator */
314 PERLVAR(Ilast_lop_op, OPCODE) /* last list operator */
315 PERLVAR(Iin_my, I32) /* we're compiling a "my" (or "our") declaration */
316 PERLVAR(Iin_my_stash, HV *) /* declared class of this "my" declaration */
318 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
321 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
323 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
325 PERLVARI(Iamagic_generation, long, 0)
327 #ifdef USE_LOCALE_COLLATE
328 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
329 PERLVAR(Icollation_name,char *) /* Name of current collation */
330 PERLVARI(Icollation_standard, bool, TRUE)
331 /* Assume simple collation */
332 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
333 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
334 #endif /* USE_LOCALE_COLLATE */
336 #ifdef USE_LOCALE_NUMERIC
338 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
339 PERLVARI(Inumeric_standard, bool, TRUE)
340 /* Assume simple numerics */
341 PERLVARI(Inumeric_local, bool, TRUE)
342 /* Assume local numerics */
344 PERLVAR(Inumeric_compat1, char)
345 /* Used to be numeric_radix */
346 #endif /* !USE_LOCALE_NUMERIC */
348 /* utf8 character classes */
349 PERLVAR(Iutf8_alnum, SV *)
350 PERLVAR(Iutf8_alnumc, SV *)
351 PERLVAR(Iutf8_ascii, SV *)
352 PERLVAR(Iutf8_alpha, SV *)
353 PERLVAR(Iutf8_space, SV *)
354 PERLVAR(Iutf8_cntrl, SV *)
355 PERLVAR(Iutf8_graph, SV *)
356 PERLVAR(Iutf8_digit, SV *)
357 PERLVAR(Iutf8_upper, SV *)
358 PERLVAR(Iutf8_lower, SV *)
359 PERLVAR(Iutf8_print, SV *)
360 PERLVAR(Iutf8_punct, SV *)
361 PERLVAR(Iutf8_xdigit, SV *)
362 PERLVAR(Iutf8_mark, SV *)
363 PERLVAR(Iutf8_toupper, SV *)
364 PERLVAR(Iutf8_totitle, SV *)
365 PERLVAR(Iutf8_tolower, SV *)
366 PERLVAR(Iutf8_tofold, SV *)
367 PERLVAR(Ilast_swash_hv, HV *)
368 PERLVAR(Ilast_swash_klen, U32)
369 PERLVARA(Ilast_swash_key,10, U8)
370 PERLVAR(Ilast_swash_tmps, U8 *)
371 PERLVAR(Ilast_swash_slen, STRLEN)
373 PERLVAR(Iparser, yy_parser *) /* current parser state */
375 PERLVARI(Iglob_index, int, 0)
376 PERLVAR(Isrand_called, bool)
377 PERLVARA(Iuudmap,256, char)
378 PERLVAR(Ibitcount, char *)
380 PERLVAR(Ipsig_ptr, SV**)
381 PERLVAR(Ipsig_name, SV**)
383 #if defined(PERL_IMPLICIT_SYS)
384 PERLVAR(IMem, struct IPerlMem*)
385 PERLVAR(IMemShared, struct IPerlMem*)
386 PERLVAR(IMemParse, struct IPerlMem*)
387 PERLVAR(IEnv, struct IPerlEnv*)
388 PERLVAR(IStdIO, struct IPerlStdIO*)
389 PERLVAR(ILIO, struct IPerlLIO*)
390 PERLVAR(IDir, struct IPerlDir*)
391 PERLVAR(ISock, struct IPerlSock*)
392 PERLVAR(IProc, struct IPerlProc*)
395 PERLVAR(Iptr_table, PTR_TBL_t*)
396 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
398 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
400 /* 5.6.0 stopped here */
402 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
403 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
405 #ifdef USE_LOCALE_NUMERIC
407 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
411 #if defined(USE_ITHREADS)
412 PERLVAR(Iregex_pad, SV**) /* All regex objects */
413 PERLVAR(Iregex_padav, AV*) /* All regex objects */
417 #ifdef USE_REENTRANT_API
418 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
421 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
424 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
425 /* (MAD = Misc Attribute Decoration) */
426 PERLVARI(Ixmlfp, PerlIO *,NULL)
429 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
430 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
433 PERLVARI(Iperlio, PerlIO *,NULL)
434 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
435 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
438 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
440 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
442 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
444 #ifdef PL_OP_SLAB_ALLOC
445 PERLVAR(IOpPtr,I32 **)
446 PERLVARI(IOpSpace,I32,0)
447 PERLVAR(IOpSlab,I32 *)
450 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
452 PERLVAR(Iutf8_idstart, SV *)
453 PERLVAR(Iutf8_idcont, SV *)
455 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
457 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
458 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
460 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
462 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
464 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
466 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
468 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
470 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
472 /* Hooks to shared SVs and locks. */
473 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
474 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
476 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
478 /* This reference ensures that the mathoms are linked with perl */
479 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
481 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
483 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
485 /* Force inclusion of both runops options */
486 PERLVARI(Irunops_std, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_standard))
487 PERLVARI(Irunops_dbg, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_debug))
489 /* Stores the PPID */
490 #ifdef THREADS_HAVE_PIDS
491 PERLVARI(Ippid, IV, 0)
494 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
496 PERLVARI(Ihash_seed_set, bool, FALSE) /* Hash initialized? */
498 PERLVAR(IDBassertion, SV *)
500 PERLVARI(Icv_has_eval, I32, 0) /* PL_compcv includes an entereval or similar */
502 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
504 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
506 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
507 /* File descriptor to talk to the child which dumps scalars. */
508 PERLVARI(Idumper_fd, int, -1)
511 #ifdef PERL_IMPLICIT_CONTEXT
512 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
513 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
514 #ifdef PERL_GLOBAL_STRUCT_PRIVATE
515 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
519 #ifdef PERL_TRACK_MEMPOOL
520 /* For use with the memory debugging code in util.c */
521 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
524 #ifdef PERL_UTF8_CACHE_ASSERT
525 PERLVARI(Iutf8cache, I8, -1) /* Is the utf8 caching code enabled? */
527 PERLVARI(Iutf8cache, I8, 1) /* Is the utf8 caching code enabled? */
530 /* New variables must be added to the very end, before this comment,
531 * for binary compatibility (the offsets of the old members must not change).
532 * (Don't forget to add your variable also to perl_clone()!)
533 * XSUB.h provides wrapper functions via perlapi.h that make this
534 * irrelevant, but not all code may be expected to #include XSUB.h.