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(Iorigargv, char **)
23 PERLVAR(Ihintgv, GV *)
24 PERLVAR(Iorigfilename, char *)
25 PERLVAR(Idiehook, SV *)
26 PERLVAR(Iwarnhook, SV *)
29 PERLVAR(Ipatchlevel, SV *)
30 PERLVAR(Ilocalpatches, const char * const *)
31 PERLVARI(Isplitstr, const char *, " ")
33 PERLVAR(Iminus_c, bool)
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)
42 PERLVAR(Iminus_E, bool)
45 =head1 Global Variables
47 =for apidoc mn|bool|PL_dowarn
49 The C variable which corresponds to Perl's $^W warning variable.
55 PERLVAR(Idoextract, bool)
56 PERLVAR(Isawampersand, bool) /* must save all match strings */
57 PERLVAR(Iunsafe, bool)
58 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
59 PERLVAR(Isrand_called, bool)
60 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
61 PERLVAR(Itainting, bool) /* doing taint checks */
62 PERLVAR(Iinplace, char *)
63 PERLVAR(Ie_script, SV *)
66 /* This value may be set when embedding for full cleanup */
67 /* 0=none, 1=full, 2=full with checks */
68 PERLVARI(Iperl_destruct_level, int, 0)
70 /* magical thingies */
71 PERLVAR(Ibasetime, Time_t) /* $^T */
72 PERLVAR(Iformfeed, SV *) /* $^L */
75 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
76 /* top fd to pass to subprocesses */
77 PERLVAR(Istatusvalue, I32) /* $? */
79 PERLVAR(Istatusvalue_vms,U32)
81 PERLVAR(Istatusvalue_posix,I32)
84 /* Moved here to give an even number of adjacent I32s/U32s/ints */
85 PERLVAR(Iorigargc, int)
87 /* shortcuts to various I/O objects */
88 PERLVAR(Istdingv, GV *)
89 PERLVAR(Istderrgv, GV *)
91 PERLVAR(Iargvgv, GV *)
92 PERLVAR(Iargvoutgv, GV *)
93 PERLVAR(Iargvout_stack, AV *)
95 /* shortcuts to regexp stuff */
96 /* this one needs to be moved to thrdvar.h and accessed via
97 * find_threadsv() when USE_5005THREADS */
98 PERLVAR(Ireplgv, GV *)
100 /* shortcuts to misc objects */
101 PERLVAR(Ierrgv, GV *)
103 /* shortcuts to debugging objects */
105 PERLVAR(IDBline, GV *)
108 =for apidoc mn|GV *|PL_DBsub
109 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
110 the SV which holds the name of the sub being debugged. This is the C
111 variable which corresponds to Perl's $DB::sub variable. See
114 =for apidoc mn|SV *|PL_DBsingle
115 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
116 boolean which indicates whether subs are being single-stepped.
117 Single-stepping is automatically turned on after every step. This is the C
118 variable which corresponds to Perl's $DB::single variable. See
121 =for apidoc mn|SV *|PL_DBtrace
122 Trace variable used when Perl is run in debugging mode, with the B<-d>
123 switch. This is the C variable which corresponds to Perl's $DB::trace
124 variable. See C<PL_DBsingle>.
129 PERLVAR(IDBsub, GV *)
130 PERLVAR(IDBsingle, SV *)
131 PERLVAR(IDBtrace, SV *)
132 PERLVAR(IDBsignal, SV *)
133 PERLVAR(Ilineary, AV *) /* lines of script for debugger */
134 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
137 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
138 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
139 PERLVAR(Icurstname, SV *) /* name of current package */
140 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
141 PERLVAR(Iendav, AV *) /* names of END subroutines */
142 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
143 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
144 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
145 PERLVAR(Istrtab, HV *) /* shared string table */
146 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
148 /* funky return mechanisms */
149 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
151 /* memory management */
152 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
153 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
154 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
155 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
157 /* subprocess state */
158 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
161 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
163 /* current interpreter roots */
164 PERLVAR(Imain_cv, CV *)
165 PERLVAR(Imain_root, OP *)
166 PERLVAR(Imain_start, OP *)
167 PERLVAR(Ieval_root, OP *)
168 PERLVAR(Ieval_start, OP *)
170 /* runtime control stuff */
171 PERLVARI(Icurcopdb, COP *, NULL)
172 PERLVARI(Icopline, line_t, NOLINE)
174 /* statics moved here for shared library purposes */
175 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
176 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
177 PERLVAR(Ilastfd, int) /* what to preserve mode on */
178 PERLVAR(Ioldname, char *) /* what to preserve mode on */
179 PERLVAR(IArgv, char **) /* stuff to free from do_aexec, vfork safe */
180 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
181 PERLVAR(Ipreambleav, AV *)
182 PERLVARI(Ilaststatval, int, -1)
183 PERLVARI(Ilaststype, I32, OP_STAT)
184 PERLVAR(Imess_sv, SV *)
186 /* XXX shouldn't these be per-thread? --GSAR */
187 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
189 /* interpreter atexit processing */
190 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
191 /* list of exit functions */
192 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
195 =for apidoc Amn|HV*|PL_modglobal
197 C<PL_modglobal> is a general purpose, interpreter global HV for use by
198 extensions that need to keep information on a per-interpreter basis.
199 In a pinch, it can also be used as a symbol table for extensions
200 to share data among each other. It is a good idea to use keys
201 prefixed by the package name of the extension that owns the data.
206 PERLVAR(Imodglobal, HV *) /* per-interp module data */
208 /* these used to be in global before 5.004_68 */
209 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
210 PERLVARI(Irsfp, PerlIO * VOL, NULL) /* current source file pointer */
211 PERLVARI(Irsfp_filters, AV *, NULL) /* keeps active source filters */
213 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
215 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
216 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
217 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
218 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
219 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
221 #ifdef HAVE_INTERP_INTERN
222 PERLVAR(Isys_intern, struct interp_intern)
223 /* platform internals */
226 /* more statics moved here */
227 PERLVAR(IDBcv, CV *) /* from perl.c */
228 PERLVARI(Igeneration, int, 100) /* from op.c */
230 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
231 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
232 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
233 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
235 PERLVAR(Ilinestart, char *) /* beg. of most recently read line */
237 PERLVAR(Iuid, Uid_t) /* current real user id */
238 PERLVAR(Ieuid, Uid_t) /* current effective user id */
239 PERLVAR(Igid, Gid_t) /* current real group id */
240 PERLVAR(Iegid, Gid_t) /* current effective group id */
241 PERLVARI(Ian, U32, 0) /* malloc sequence number */
242 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
243 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
244 PERLVAR(Iorigalen, U32)
245 PERLVAR(Iorigenviron, char **)
246 #ifdef PERL_USES_PL_PIDSTATUS
247 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
249 PERLVAR(Iosname, char *) /* operating system */
251 PERLVAR(Isighandlerp, Sighandler_t)
253 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
255 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
256 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
258 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
260 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
262 PERLVARA(Itokenbuf,256, char)
265 =for apidoc Amn|SV|PL_sv_undef
266 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
268 =for apidoc Amn|SV|PL_sv_no
269 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
272 =for apidoc Amn|SV|PL_sv_yes
273 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
279 PERLVAR(Isv_undef, SV)
284 PERLVARI(Icshname, const char *, CSH)
285 PERLVARI(Icshlen, I32, 0)
288 PERLVAR(Ilex_state, U32) /* next token is determined */
290 /* What we know when we're in LEX_KNOWNEXT state. */
292 PERLVARA(Inexttoke,5, NEXTTOKE) /* value of next token, if any */
293 PERLVAR(Icurforce, I32)
295 PERLVARA(Inextval,5, YYSTYPE) /* value of next token, if any */
296 PERLVARA(Inexttype,5, I32) /* type of next token */
297 PERLVAR(Inexttoke, I32)
300 PERLVAR(Ilinestr, SV *)
301 PERLVAR(Ibufptr, char *)
302 PERLVAR(Ioldbufptr, char *)
303 PERLVAR(Ioldoldbufptr, char *)
304 PERLVAR(Ibufend, char *)
305 PERLVARI(Iexpect,int, XSTATE) /* how to interpret ambiguous tokens */
307 PERLVAR(Imulti_end, I32) /* last line of multi-line string */
309 PERLVAR(Ierror_count, I32) /* how many errors so far, max 10 */
310 PERLVAR(Isubline, I32) /* line this subroutine began on */
311 PERLVAR(Isubname, SV *) /* name of current subroutine */
313 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
314 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
315 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
316 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
317 PERLVAR(Ipad_reset_pending, I32) /* reset pad on next attempted alloc */
319 PERLVAR(Ilast_uni, char *) /* position of last named-unary op */
320 PERLVAR(Ilast_lop, char *) /* position of last list operator */
321 PERLVAR(Ilast_lop_op, OPCODE) /* last list operator */
322 PERLVAR(Iin_my, I32) /* we're compiling a "my" (or "our") declaration */
323 PERLVAR(Iin_my_stash, HV *) /* declared class of this "my" declaration */
325 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
328 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
330 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
332 PERLVARI(Iamagic_generation, long, 0)
334 #ifdef USE_LOCALE_COLLATE
335 PERLVAR(Icollation_name,char *) /* Name of current collation */
336 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
337 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
338 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
339 PERLVARI(Icollation_standard, bool, TRUE)
340 /* Assume simple collation */
341 #endif /* USE_LOCALE_COLLATE */
344 #ifdef PERL_UTF8_CACHE_ASSERT
345 PERLVARI(Iutf8cache, I8, -1) /* Is the utf8 caching code enabled? */
347 PERLVARI(Iutf8cache, I8, 1) /* Is the utf8 caching code enabled? */
350 #ifdef USE_LOCALE_NUMERIC
352 PERLVARI(Inumeric_standard, bool, TRUE)
353 /* Assume simple numerics */
354 PERLVARI(Inumeric_local, bool, TRUE)
355 /* Assume local numerics */
356 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
357 #endif /* !USE_LOCALE_NUMERIC */
359 /* utf8 character classes */
360 PERLVAR(Iutf8_alnum, SV *)
361 PERLVAR(Iutf8_alnumc, SV *)
362 PERLVAR(Iutf8_ascii, SV *)
363 PERLVAR(Iutf8_alpha, SV *)
364 PERLVAR(Iutf8_space, SV *)
365 PERLVAR(Iutf8_cntrl, SV *)
366 PERLVAR(Iutf8_graph, SV *)
367 PERLVAR(Iutf8_digit, SV *)
368 PERLVAR(Iutf8_upper, SV *)
369 PERLVAR(Iutf8_lower, SV *)
370 PERLVAR(Iutf8_print, SV *)
371 PERLVAR(Iutf8_punct, SV *)
372 PERLVAR(Iutf8_xdigit, SV *)
373 PERLVAR(Iutf8_mark, SV *)
374 PERLVAR(Iutf8_toupper, SV *)
375 PERLVAR(Iutf8_totitle, SV *)
376 PERLVAR(Iutf8_tolower, SV *)
377 PERLVAR(Iutf8_tofold, SV *)
378 PERLVAR(Ilast_swash_hv, HV *)
379 PERLVAR(Ilast_swash_tmps, U8 *)
380 PERLVAR(Ilast_swash_slen, STRLEN)
381 PERLVARI(Iglob_index, int, 0)
382 PERLVAR(Ilast_swash_klen, U32)
383 PERLVARA(Ilast_swash_key,10, U8)
385 PERLVAR(Iparser, yy_parser *) /* current parser state */
387 PERLVARA(Iuudmap,256, char)
388 PERLVAR(Ibitcount, char *)
390 PERLVAR(Ipsig_ptr, SV**)
391 PERLVAR(Ipsig_name, SV**)
393 #if defined(PERL_IMPLICIT_SYS)
394 PERLVAR(IMem, struct IPerlMem*)
395 PERLVAR(IMemShared, struct IPerlMem*)
396 PERLVAR(IMemParse, struct IPerlMem*)
397 PERLVAR(IEnv, struct IPerlEnv*)
398 PERLVAR(IStdIO, struct IPerlStdIO*)
399 PERLVAR(ILIO, struct IPerlLIO*)
400 PERLVAR(IDir, struct IPerlDir*)
401 PERLVAR(ISock, struct IPerlSock*)
402 PERLVAR(IProc, struct IPerlProc*)
405 PERLVAR(Iptr_table, PTR_TBL_t*)
406 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
408 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
410 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
411 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
413 #ifdef USE_LOCALE_NUMERIC
415 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
419 #if defined(USE_ITHREADS)
420 PERLVAR(Iregex_pad, SV**) /* All regex objects */
421 PERLVAR(Iregex_padav, AV*) /* All regex objects */
425 #ifdef USE_REENTRANT_API
426 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
431 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
432 /* (MAD = Misc Attribute Decoration) */
433 PERLVARI(Ixmlfp, PerlIO *,NULL)
436 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
437 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
440 PERLVARI(Iperlio, PerlIO *,NULL)
441 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
442 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
445 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
447 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
449 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
450 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
451 PERLVARI(Ihash_seed_set, bool, FALSE) /* Hash initialized? */
452 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
454 PERLVARI(Icv_has_eval, I32, 0) /* PL_compcv includes an entereval or similar */
456 #ifdef PL_OP_SLAB_ALLOC
457 PERLVAR(IOpPtr,I32 **)
458 PERLVARI(IOpSpace,I32,0)
459 PERLVAR(IOpSlab,I32 *)
462 PERLVAR(Iutf8_idstart, SV *)
463 PERLVAR(Iutf8_idcont, SV *)
465 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
467 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
468 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
470 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
472 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
474 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
476 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
478 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
480 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
482 /* Hooks to shared SVs and locks. */
483 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
484 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
486 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
488 /* This reference ensures that the mathoms are linked with perl */
489 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
491 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
493 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
495 /* Force inclusion of both runops options */
496 PERLVARI(Irunops_std, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_standard))
497 PERLVARI(Irunops_dbg, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_debug))
499 /* Stores the PPID */
500 #ifdef THREADS_HAVE_PIDS
501 PERLVARI(Ippid, IV, 0)
504 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
506 PERLVAR(IDBassertion, SV *)
508 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
510 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
511 /* File descriptor to talk to the child which dumps scalars. */
512 PERLVARI(Idumper_fd, int, -1)
515 #ifdef PERL_IMPLICIT_CONTEXT
516 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
517 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
518 #ifdef PERL_GLOBAL_STRUCT_PRIVATE
519 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
523 #ifdef PERL_TRACK_MEMPOOL
524 /* For use with the memory debugging code in util.c */
525 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
528 #ifdef PERL_DEBUG_READONLY_OPS
529 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
530 PERLVARI(Islab_count, U32, 0) /* Size of the array */
533 /* New variables must be added to the very end, before this comment,
534 * for binary compatibility (the offsets of the old members must not change).
535 * (Don't forget to add your variable also to perl_clone()!)
536 * XSUB.h provides wrapper functions via perlapi.h that make this
537 * irrelevant, but not all code may be expected to #include XSUB.h.