1 /* intrpvar.h 2 * 3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 4 * 2006, 2007, 2008 by Larry Wall and others 5 * 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. 8 * 9 */ 10 11 #include "handy.h" 12 13 /* 14 =head1 Per-Interpreter Variables 15 */ 16 17 /* These variables are per-interpreter in threaded/multiplicity builds, 18 * global otherwise. 19 20 * Don't forget to re-run regen/embed.pl to propagate changes! */ 21 22 /* New variables must be added to the very end for binary compatibility. */ 23 24 /* Don't forget to add your variable also to perl_clone()! (in sv.c) */ 25 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. If the variable 29 * needs to be initialized, use PERLVARI. 30 * 31 * When building without MULTIPLICITY, these variables will be truly global. 32 * 33 * Important ones in the first cache line (if alignment is done right) */ 34 35 PERLVAR(I, stack_sp, SV **) /* top of the stack */ 36 PERLVAR(I, op, OP *) /* currently executing op */ 37 PERLVAR(I, curpad, SV **) /* active pad (lexicals+tmps) */ 38 39 PERLVAR(I, stack_base, SV **) 40 PERLVAR(I, stack_max, SV **) 41 42 PERLVAR(I, savestack, ANY *) /* items that need to be restored when 43 LEAVEing scopes we've ENTERed */ 44 PERLVAR(I, savestack_ix, I32) 45 PERLVAR(I, savestack_max, I32) 46 47 PERLVAR(I, scopestack, I32 *) /* scopes we've ENTERed */ 48 PERLVAR(I, scopestack_ix, I32) 49 PERLVAR(I, scopestack_max, I32) 50 51 PERLVAR(I, tmps_stack, SV **) /* mortals we've made */ 52 PERLVARI(I, tmps_ix, SSize_t, -1) 53 PERLVARI(I, tmps_floor, SSize_t, -1) 54 PERLVAR(I, tmps_max, SSize_t) 55 56 PERLVARI(I, sub_generation, U32, 1) /* incr to invalidate method cache */ 57 58 PERLVAR(I, markstack, I32 *) /* stack_sp locations we're 59 remembering */ 60 PERLVAR(I, markstack_ptr, I32 *) 61 PERLVAR(I, markstack_max, I32 *) 62 63 #ifdef PERL_HASH_RANDOMIZE_KEYS 64 #ifdef USE_PERL_PERTURB_KEYS 65 PERLVARI(I, hash_rand_bits_enabled, U8, 1) /* used to randomize hash stuff 0 == no-random, 1 == random, 2 == determinsitic */ 66 #endif 67 PERLVARI(I, hash_rand_bits, UV, 0) /* used to randomize hash stuff */ 68 #endif 69 PERLVAR(I, strtab, HV *) /* shared string table */ 70 71 /* Fields used by magic variables such as $@, $/ and so on */ 72 PERLVAR(I, curpm, PMOP *) /* what to do \ interps in REs from */ 73 74 PERLVAR(I, tainting, bool) /* doing taint checks */ 75 PERLVAR(I, tainted, bool) /* using variables controlled by $< */ 76 PERLVAR(I, delaymagic, U16) /* ($<,$>) = ... */ 77 PERLVAR(I, localizing, U8) /* are we processing a local() list? */ 78 PERLVAR(I, in_eval, U8) /* trap "fatal" errors? */ 79 PERLVAR(I, defgv, GV *) /* the *_ glob */ 80 /* 81 82 =for apidoc mn|bool|PL_dowarn 83 84 The C variable which corresponds to Perl's $^W warning variable. 85 86 =cut 87 */ 88 89 PERLVAR(I, dowarn, U8) 90 91 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING) 92 # define PERL___I -1 93 #else 94 # define PERL___I 1 95 #endif 96 PERLVARI(I, utf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */ 97 #undef PERL___I 98 99 100 /* Stashes */ 101 PERLVAR(I, defstash, HV *) /* main symbol table */ 102 PERLVAR(I, curstash, HV *) /* symbol table for current package */ 103 104 PERLVAR(I, curcop, COP *) 105 PERLVAR(I, curstack, AV *) /* THE STACK */ 106 PERLVAR(I, curstackinfo, PERL_SI *) /* current stack + context */ 107 PERLVAR(I, mainstack, AV *) /* the stack when nothing funny is 108 happening */ 109 110 /* memory management */ 111 PERLVAR(I, sv_count, IV) /* how many SV* are currently allocated */ 112 PERLVAR(I, sv_objcount, IV) /* DEPRECATED AND UNMAINTAINED. 113 * Will be removed in Perl 5.22. 114 * Used to be: how many objects are currently allocated. */ 115 116 PERLVAR(I, sv_root, SV *) /* storage for SVs belonging to interp */ 117 PERLVAR(I, sv_arenaroot, SV *) /* list of areas for garbage collection */ 118 119 /* fake PMOP that PL_curpm points to while in (?{}) so $1 et al are visible */ 120 PERLVARI(I, reg_curpm, PMOP*, NULL) 121 122 /* the currently active slab in a chain of slabs of regmatch states, 123 * and the currently active state within that slab. This stack of states 124 * is shared amongst re-entrant calls to the regex engine */ 125 126 PERLVARI(I, regmatch_slab, regmatch_slab *, NULL) 127 PERLVAR(I, regmatch_state, regmatch_state *) 128 129 PERLVAR(I, comppad, PAD *) /* storage for lexically scoped temporaries */ 130 131 /* 132 =for apidoc Amn|SV|PL_sv_undef 133 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>. 134 135 =for apidoc Amn|SV|PL_sv_no 136 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as 137 C<&PL_sv_no>. 138 139 =for apidoc Amn|SV|PL_sv_yes 140 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as 141 C<&PL_sv_yes>. 142 143 =cut 144 */ 145 146 PERLVAR(I, sv_undef, SV) 147 PERLVAR(I, sv_no, SV) 148 PERLVAR(I, sv_yes, SV) 149 PERLVAR(I, Sv, SV *) /* used to hold temporary values */ 150 151 PERLVAR(I, parser, yy_parser *) /* current parser state */ 152 153 PERLVAR(I, stashcache, HV *) /* Cache to speed up S_method_common */ 154 155 156 /* 157 =for apidoc Amn|STRLEN|PL_na 158 159 A convenience variable which is typically used with C<SvPV> when one 160 doesn't care about the length of the string. It is usually more efficient 161 to either declare a local variable and use that instead or to use the 162 C<SvPV_nolen> macro. 163 164 =cut 165 */ 166 167 PERLVAR(I, na, STRLEN) /* for use in SvPV when length is 168 Not Applicable */ 169 170 /* stat stuff */ 171 PERLVAR(I, statbuf, Stat_t) 172 PERLVAR(I, statcache, Stat_t) /* _ */ 173 PERLVAR(I, statgv, GV *) 174 PERLVARI(I, statname, SV *, NULL) 175 176 #ifdef HAS_TIMES 177 /* Will be removed soon after v5.21.0. See RT #121351 */ 178 PERLVAR(I, timesbuf, struct tms) 179 #endif 180 181 /* 182 =for apidoc mn|SV*|PL_rs 183 184 The input record separator - C<$/> in Perl space. 185 186 =for apidoc mn|GV*|PL_last_in_gv 187 188 The GV which was last used for a filehandle input operation. (C<< <FH> >>) 189 190 =for apidoc mn|GV*|PL_ofsgv 191 192 The glob containing the output field separator - C<*,> in Perl space. 193 194 =cut 195 */ 196 197 PERLVAR(I, rs, SV *) /* input record separator $/ */ 198 PERLVAR(I, last_in_gv, GV *) /* GV used in last <FH> */ 199 PERLVAR(I, ofsgv, GV *) /* GV of output field separator *, */ 200 PERLVAR(I, defoutgv, GV *) /* default FH for output */ 201 PERLVARI(I, chopset, const char *, " \n-") /* $: */ 202 PERLVAR(I, formtarget, SV *) 203 PERLVAR(I, bodytarget, SV *) 204 PERLVAR(I, toptarget, SV *) 205 206 207 PERLVAR(I, restartop, OP *) /* propagating an error from croak? */ 208 PERLVAR(I, restartjmpenv, JMPENV *) /* target frame for longjmp in die */ 209 210 PERLVAR(I, top_env, JMPENV *) /* ptr to current sigjmp environment */ 211 PERLVAR(I, start_env, JMPENV) /* empty startup sigjmp environment */ 212 PERLVARI(I, errors, SV *, NULL) /* outstanding queued errors */ 213 214 /* statics "owned" by various functions */ 215 PERLVAR(I, hv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */ 216 217 PERLVAR(I, lastgotoprobe, OP*) /* from pp_ctl.c */ 218 219 /* sort stuff */ 220 PERLVAR(I, sortcop, OP *) /* user defined sort routine */ 221 PERLVAR(I, sortstash, HV *) /* which is in some package or other */ 222 PERLVAR(I, firstgv, GV *) /* $a */ 223 PERLVAR(I, secondgv, GV *) /* $b */ 224 225 /* float buffer */ 226 PERLVAR(I, efloatbuf, char *) 227 PERLVAR(I, efloatsize, STRLEN) 228 229 PERLVARI(I, dumpindent, U16, 4) /* number of blanks per dump 230 indentation level */ 231 232 PERLVAR(I, exit_flags, U8) /* was exit() unexpected, etc. */ 233 234 PERLVAR(I, utf8locale, bool) /* utf8 locale detected */ 235 PERLVAR(I, in_utf8_CTYPE_locale, bool) 236 237 PERLVARA(I, colors,6, char *) /* values from PERL_RE_COLORS env var */ 238 239 /* 240 =for apidoc Amn|peep_t|PL_peepp 241 242 Pointer to the per-subroutine peephole optimiser. This is a function 243 that gets called at the end of compilation of a Perl subroutine (or 244 equivalently independent piece of Perl code) to perform fixups of 245 some ops and to perform small-scale optimisations. The function is 246 called once for each subroutine that is compiled, and is passed, as sole 247 parameter, a pointer to the op that is the entry point to the subroutine. 248 It modifies the op tree in place. 249 250 The peephole optimiser should never be completely replaced. Rather, 251 add code to it by wrapping the existing optimiser. The basic way to do 252 this can be seen in L<perlguts/Compile pass 3: peephole optimization>. 253 If the new code wishes to operate on ops throughout the subroutine's 254 structure, rather than just at the top level, it is likely to be more 255 convenient to wrap the L</PL_rpeepp> hook. 256 257 =cut 258 */ 259 260 PERLVARI(I, peepp, peep_t, Perl_peep) 261 262 /* 263 =for apidoc Amn|peep_t|PL_rpeepp 264 265 Pointer to the recursive peephole optimiser. This is a function 266 that gets called at the end of compilation of a Perl subroutine (or 267 equivalently independent piece of Perl code) to perform fixups of some 268 ops and to perform small-scale optimisations. The function is called 269 once for each chain of ops linked through their C<op_next> fields; 270 it is recursively called to handle each side chain. It is passed, as 271 sole parameter, a pointer to the op that is at the head of the chain. 272 It modifies the op tree in place. 273 274 The peephole optimiser should never be completely replaced. Rather, 275 add code to it by wrapping the existing optimiser. The basic way to do 276 this can be seen in L<perlguts/Compile pass 3: peephole optimization>. 277 If the new code wishes to operate only on ops at a subroutine's top level, 278 rather than throughout the structure, it is likely to be more convenient 279 to wrap the L</PL_peepp> hook. 280 281 =cut 282 */ 283 284 PERLVARI(I, rpeepp, peep_t, Perl_rpeep) 285 286 /* 287 =for apidoc Amn|Perl_ophook_t|PL_opfreehook 288 289 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. 290 This allows extensions to free any extra attribute they have locally attached to an OP. 291 It is also assured to first fire for the parent OP and then for its kids. 292 293 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. 294 295 =cut 296 */ 297 298 PERLVARI(I, opfreehook, Perl_ophook_t, 0) /* op_free() hook */ 299 300 PERLVARI(I, watchaddr, char **, 0) 301 PERLVAR(I, watchok, char *) 302 303 PERLVAR(I, perldb, U32) 304 305 PERLVAR(I, signals, U32) /* Using which pre-5.8 signals */ 306 307 PERLVAR(I, reentrant_retint, int) /* Integer return value from reentrant functions */ 308 309 /* pseudo environmental stuff */ 310 PERLVAR(I, origargc, int) 311 PERLVAR(I, origargv, char **) 312 PERLVAR(I, envgv, GV *) 313 PERLVAR(I, incgv, GV *) 314 PERLVAR(I, hintgv, GV *) 315 PERLVAR(I, origfilename, char *) 316 PERLVAR(I, diehook, SV *) 317 PERLVAR(I, warnhook, SV *) 318 319 /* switches */ 320 PERLVAR(I, patchlevel, SV *) 321 PERLVAR(I, apiversion, SV *) 322 PERLVAR(I, localpatches, const char * const *) 323 PERLVARI(I, splitstr, const char *, " ") 324 325 PERLVAR(I, minus_c, bool) 326 PERLVAR(I, minus_n, bool) 327 PERLVAR(I, minus_p, bool) 328 PERLVAR(I, minus_l, bool) 329 PERLVAR(I, minus_a, bool) 330 PERLVAR(I, minus_F, bool) 331 PERLVAR(I, doswitches, bool) 332 PERLVAR(I, minus_E, bool) 333 334 PERLVAR(I, inplace, char *) 335 PERLVAR(I, e_script, SV *) 336 337 PERLVAR(I, basetime, Time_t) /* $^T */ 338 339 PERLVARI(I, maxsysfd, I32, MAXSYSFD) 340 /* top fd to pass to subprocesses */ 341 PERLVAR(I, statusvalue, I32) /* $? */ 342 #ifdef VMS 343 PERLVAR(I, statusvalue_vms, U32) 344 #else 345 PERLVAR(I, statusvalue_posix, I32) 346 #endif 347 348 PERLVARI(I, sig_pending, int, 0) /* Number if highest signal pending */ 349 PERLVAR(I, psig_pend, int *) /* per-signal "count" of pending */ 350 351 /* shortcuts to various I/O objects */ 352 PERLVAR(I, stdingv, GV *) /* *STDIN */ 353 PERLVAR(I, stderrgv, GV *) /* *STDERR */ 354 PERLVAR(I, argvgv, GV *) /* *ARGV */ 355 PERLVAR(I, argvoutgv, GV *) /* *ARGVOUT */ 356 PERLVAR(I, argvout_stack, AV *) 357 358 /* shortcuts to regexp stuff */ 359 PERLVAR(I, replgv, GV *) /* *^R */ 360 361 /* shortcuts to misc objects */ 362 PERLVAR(I, errgv, GV *) /* *@ */ 363 364 /* shortcuts to debugging objects */ 365 PERLVAR(I, DBgv, GV *) /* *DB::DB */ 366 PERLVAR(I, DBline, GV *) /* *DB::line */ 367 368 /* 369 =for apidoc mn|GV *|PL_DBsub 370 When Perl is run in debugging mode, with the B<-d> switch, this GV contains 371 the SV which holds the name of the sub being debugged. This is the C 372 variable which corresponds to Perl's $DB::sub variable. See 373 C<PL_DBsingle>. 374 375 =for apidoc mn|SV *|PL_DBsingle 376 When Perl is run in debugging mode, with the B<-d> switch, this SV is a 377 boolean which indicates whether subs are being single-stepped. 378 Single-stepping is automatically turned on after every step. This is the C 379 variable which corresponds to Perl's $DB::single variable. See 380 C<PL_DBsub>. 381 382 =for apidoc mn|SV *|PL_DBtrace 383 Trace variable used when Perl is run in debugging mode, with the B<-d> 384 switch. This is the C variable which corresponds to Perl's $DB::trace 385 variable. See C<PL_DBsingle>. 386 387 =cut 388 */ 389 390 PERLVAR(I, DBsub, GV *) /* *DB::sub */ 391 PERLVAR(I, DBsingle, SV *) /* $DB::single */ 392 PERLVAR(I, DBtrace, SV *) /* $DB::trace */ 393 PERLVAR(I, DBsignal, SV *) /* $DB::signal */ 394 PERLVAR(I, dbargs, AV *) /* args to call listed by caller function */ 395 396 /* symbol tables */ 397 PERLVAR(I, debstash, HV *) /* symbol table for perldb package */ 398 PERLVAR(I, globalstash, HV *) /* global keyword overrides imported here */ 399 PERLVAR(I, curstname, SV *) /* name of current package */ 400 PERLVAR(I, beginav, AV *) /* names of BEGIN subroutines */ 401 PERLVAR(I, endav, AV *) /* names of END subroutines */ 402 PERLVAR(I, unitcheckav, AV *) /* names of UNITCHECK subroutines */ 403 PERLVAR(I, checkav, AV *) /* names of CHECK subroutines */ 404 PERLVAR(I, initav, AV *) /* names of INIT subroutines */ 405 406 /* subprocess state */ 407 PERLVAR(I, fdpid, AV *) /* keep fd-to-pid mappings for my_popen */ 408 409 /* internal state */ 410 PERLVARI(I, op_mask, char *, NULL) /* masked operations for safe evals */ 411 412 /* current interpreter roots */ 413 PERLVAR(I, main_cv, CV *) 414 PERLVAR(I, main_root, OP *) 415 PERLVAR(I, main_start, OP *) 416 PERLVAR(I, eval_root, OP *) 417 PERLVAR(I, eval_start, OP *) 418 419 /* runtime control stuff */ 420 PERLVARI(I, curcopdb, COP *, NULL) 421 422 PERLVAR(I, filemode, int) /* so nextargv() can preserve mode */ 423 PERLVAR(I, lastfd, int) /* what to preserve mode on */ 424 PERLVAR(I, oldname, char *) /* what to preserve mode on */ 425 PERLVAR(I, Argv, const char **) /* stuff to free from do_aexec, vfork safe */ 426 PERLVAR(I, Cmd, char *) /* stuff to free from do_aexec, vfork safe */ 427 /* Elements in this array have ';' appended and are injected as a single line 428 into the tokeniser. You can't put any (literal) newlines into any program 429 you stuff in into this array, as the point where it's injected is expecting 430 a single physical line. */ 431 PERLVAR(I, preambleav, AV *) 432 PERLVAR(I, mess_sv, SV *) 433 PERLVAR(I, ors_sv, SV *) /* output record separator $\ */ 434 435 /* funky return mechanisms */ 436 PERLVAR(I, forkprocess, int) /* so do_open |- can return proc# */ 437 438 /* statics moved here for shared library purposes */ 439 PERLVARI(I, gensym, I32, 0) /* next symbol for getsym() to define */ 440 PERLVARI(I, cv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */ 441 PERLVAR(I, taint_warn, bool) /* taint warns instead of dying */ 442 PERLVARI(I, laststype, U16, OP_STAT) 443 444 PERLVARI(I, laststatval, int, -1) 445 446 PERLVAR(I, modcount, I32) /* how much op_lvalue()ification in 447 assignment? */ 448 449 /* interpreter atexit processing */ 450 PERLVARI(I, exitlistlen, I32, 0) /* length of same */ 451 PERLVARI(I, exitlist, PerlExitListEntry *, NULL) 452 /* list of exit functions */ 453 454 /* 455 =for apidoc Amn|HV*|PL_modglobal 456 457 C<PL_modglobal> is a general purpose, interpreter global HV for use by 458 extensions that need to keep information on a per-interpreter basis. 459 In a pinch, it can also be used as a symbol table for extensions 460 to share data among each other. It is a good idea to use keys 461 prefixed by the package name of the extension that owns the data. 462 463 =cut 464 */ 465 466 PERLVAR(I, modglobal, HV *) /* per-interp module data */ 467 468 /* these used to be in global before 5.004_68 */ 469 PERLVARI(I, profiledata, U32 *, NULL) /* table of ops, counts */ 470 471 PERLVAR(I, compiling, COP) /* compiling/done executing marker */ 472 473 PERLVAR(I, compcv, CV *) /* currently compiling subroutine */ 474 PERLVAR(I, comppad_name, PADNAMELIST *) /* variable names for "my" variables */ 475 PERLVAR(I, comppad_name_fill, I32) /* last "introduced" variable offset */ 476 PERLVAR(I, comppad_name_floor, I32) /* start of vars in innermost block */ 477 478 #ifdef HAVE_INTERP_INTERN 479 PERLVAR(I, sys_intern, struct interp_intern) 480 /* platform internals */ 481 #endif 482 483 /* more statics moved here */ 484 PERLVAR(I, DBcv, CV *) /* from perl.c */ 485 PERLVARI(I, generation, int, 100) /* from op.c */ 486 487 PERLVAR(I, unicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */ 488 489 PERLVARI(I, in_clean_objs,bool, FALSE) /* from sv.c */ 490 PERLVARI(I, in_clean_all, bool, FALSE) /* ptrs to freed SVs now legal */ 491 PERLVAR(I, nomemok, bool) /* let malloc context handle nomem */ 492 PERLVARI(I, savebegin, bool, FALSE) /* save BEGINs for compiler */ 493 494 495 PERLVAR(I, delaymagic_uid, Uid_t) /* current real user id, only for delaymagic */ 496 PERLVAR(I, delaymagic_euid, Uid_t) /* current effective user id, only for delaymagic */ 497 PERLVAR(I, delaymagic_gid, Gid_t) /* current real group id, only for delaymagic */ 498 PERLVAR(I, delaymagic_egid, Gid_t) /* current effective group id, only for delaymagic */ 499 PERLVARI(I, an, U32, 0) /* malloc sequence number */ 500 501 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */ 502 PERLVARI(I, breakable_sub_gen, U32, 0) 503 504 #ifdef DEBUGGING 505 /* exercise wrap-around */ 506 #define PERL_COP_SEQMAX (U32_MAX-50) 507 #else 508 #define PERL_COP_SEQMAX 0 509 #endif 510 PERLVARI(I, cop_seqmax, U32, PERL_COP_SEQMAX) /* statement sequence number */ 511 #undef PERL_COP_SEQMAX 512 513 PERLVARI(I, evalseq, U32, 0) /* eval sequence number */ 514 PERLVAR(I, origalen, U32) 515 PERLVAR(I, origenviron, char **) 516 #ifdef PERL_USES_PL_PIDSTATUS 517 PERLVAR(I, pidstatus, HV *) /* pid-to-status mappings for waitpid */ 518 #endif 519 PERLVAR(I, osname, char *) /* operating system */ 520 521 PERLVAR(I, sighandlerp, Sighandler_t) 522 523 PERLVARA(I, body_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */ 524 525 PERLVAR(I, debug, VOL U32) /* flags given to -D switch */ 526 527 PERLVARI(I, maxo, int, MAXO) /* maximum number of ops */ 528 529 PERLVARI(I, runops, runops_proc_t, RUNOPS_DEFAULT) 530 531 PERLVAR(I, subname, SV *) /* name of current subroutine */ 532 533 PERLVAR(I, subline, I32) /* line this subroutine began on */ 534 PERLVAR(I, min_intro_pending, I32) /* start of vars to introduce */ 535 536 PERLVAR(I, max_intro_pending, I32) /* end of vars to introduce */ 537 PERLVAR(I, padix, I32) /* max used index in current "register" pad */ 538 539 PERLVAR(I, padix_floor, I32) /* how low may inner block reset padix */ 540 541 #ifdef USE_LOCALE_COLLATE 542 PERLVAR(I, collation_name, char *) /* Name of current collation */ 543 PERLVAR(I, collxfrm_base, Size_t) /* Basic overhead in *xfrm() */ 544 PERLVARI(I, collxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */ 545 PERLVARI(I, collation_ix, U32, 0) /* Collation generation index */ 546 PERLVARI(I, collation_standard, bool, TRUE) 547 /* Assume simple collation */ 548 #endif /* USE_LOCALE_COLLATE */ 549 550 #ifdef PERL_SAWAMPERSAND 551 PERLVAR(I, sawampersand, U8) /* must save all match strings */ 552 #endif 553 554 PERLVAR(I, unsafe, bool) 555 PERLVAR(I, colorset, bool) /* PERL_RE_COLORS env var is in use */ 556 557 /* current phase the interpreter is in 558 for ordering this structure to remove holes, we're assuming that this is 4 559 bytes. */ 560 PERLVARI(I, phase, enum perl_phase, PERL_PHASE_CONSTRUCT) 561 562 PERLVARI(I, in_load_module, bool, FALSE) /* to prevent recursions in PerlIO_find_layer */ 563 564 /* This value may be set when embedding for full cleanup */ 565 /* 0=none, 1=full, 2=full with checks */ 566 /* mod_perl is special, and also assigns a meaning -1 */ 567 PERLVARI(I, perl_destruct_level, signed char, 0) 568 569 #ifdef USE_LOCALE_NUMERIC 570 571 PERLVARI(I, numeric_standard, bool, TRUE) 572 /* Assume simple numerics */ 573 PERLVARI(I, numeric_local, bool, TRUE) 574 /* Assume local numerics */ 575 PERLVAR(I, numeric_name, char *) /* Name of current numeric locale */ 576 PERLVAR(I, numeric_radix_sv, SV *) /* The radix separator if not '.' */ 577 578 #endif /* !USE_LOCALE_NUMERIC */ 579 580 /* Unicode inversion lists */ 581 PERLVAR(I, Latin1, SV *) 582 PERLVAR(I, UpperLatin1, SV *) /* Code points 128 - 255 */ 583 PERLVAR(I, AboveLatin1, SV *) 584 585 PERLVAR(I, NonL1NonFinalFold, SV *) 586 PERLVAR(I, HasMultiCharFold, SV *) 587 588 /* utf8 character class swashes */ 589 PERLVAR(I, utf8_mark, SV *) 590 PERLVAR(I, utf8_X_regular_begin, SV *) 591 PERLVAR(I, utf8_X_extend, SV *) 592 PERLVAR(I, utf8_toupper, SV *) 593 PERLVAR(I, utf8_totitle, SV *) 594 PERLVAR(I, utf8_tolower, SV *) 595 PERLVAR(I, utf8_tofold, SV *) 596 PERLVAR(I, utf8_charname_begin, SV *) 597 PERLVAR(I, utf8_charname_continue, SV *) 598 599 PERLVARA(I, utf8_swash_ptrs, POSIX_SWASH_COUNT, SV *) 600 PERLVARA(I, Posix_ptrs, POSIX_CC_COUNT, SV *) 601 PERLVARA(I, XPosix_ptrs, POSIX_CC_COUNT, SV *) 602 603 PERLVAR(I, last_swash_hv, HV *) 604 PERLVAR(I, last_swash_tmps, U8 *) 605 PERLVAR(I, last_swash_slen, STRLEN) 606 PERLVARA(I, last_swash_key,UTF8_MAXBYTES-1, U8) 607 PERLVAR(I, last_swash_klen, U8) /* Only needs to store 0-12 */ 608 609 #ifdef FCRYPT 610 PERLVARI(I, cryptseen, bool, FALSE) /* has fast crypt() been initialized? */ 611 #else 612 /* One byte hole in the interpreter structure. */ 613 #endif 614 615 PERLVAR(I, pad_reset_pending, bool) /* reset pad on next attempted alloc */ 616 PERLVAR(I, srand_called, bool) 617 618 /* Array of signal handlers, indexed by signal number, through which the C 619 signal handler dispatches. */ 620 PERLVAR(I, psig_ptr, SV **) 621 /* Array of names of signals, indexed by signal number, for (re)use as the first 622 argument to a signal handler. Only one block of memory is allocated for 623 both psig_name and psig_ptr. */ 624 PERLVAR(I, psig_name, SV **) 625 626 #if defined(PERL_IMPLICIT_SYS) 627 PERLVAR(I, Mem, struct IPerlMem *) 628 PERLVAR(I, MemShared, struct IPerlMem *) 629 PERLVAR(I, MemParse, struct IPerlMem *) 630 PERLVAR(I, Env, struct IPerlEnv *) 631 PERLVAR(I, StdIO, struct IPerlStdIO *) 632 PERLVAR(I, LIO, struct IPerlLIO *) 633 PERLVAR(I, Dir, struct IPerlDir *) 634 PERLVAR(I, Sock, struct IPerlSock *) 635 PERLVAR(I, Proc, struct IPerlProc *) 636 #endif 637 638 PERLVAR(I, ptr_table, PTR_TBL_t *) 639 PERLVARI(I, beginav_save, AV *, NULL) /* save BEGIN{}s when compiling */ 640 641 PERLVAR(I, body_arenas, void *) /* pointer to list of body-arenas */ 642 643 644 #if defined(USE_ITHREADS) 645 PERLVAR(I, regex_pad, SV **) /* Shortcut into the array of 646 regex_padav */ 647 PERLVAR(I, regex_padav, AV *) /* All regex objects, indexed via the 648 values in op_pmoffset of pmop. 649 Entry 0 is an SV whose PV is a 650 "packed" list of IVs listing 651 the now-free slots in the array */ 652 PERLVAR(I, stashpad, HV **) /* for CopSTASH */ 653 PERLVARI(I, stashpadmax, PADOFFSET, 64) 654 PERLVARI(I, stashpadix, PADOFFSET, 0) 655 #endif 656 657 #ifdef USE_REENTRANT_API 658 PERLVAR(I, reentrant_buffer, REENTR *) /* here we store the _r buffers */ 659 #endif 660 661 PERLVAR(I, custom_op_names, HV *) /* Names of user defined ops */ 662 PERLVAR(I, custom_op_descs, HV *) /* Descriptions of user defined ops */ 663 664 #ifdef PERLIO_LAYERS 665 PERLVARI(I, perlio, PerlIOl *, NULL) 666 PERLVARI(I, known_layers, PerlIO_list_t *, NULL) 667 PERLVARI(I, def_layerlist, PerlIO_list_t *, NULL) 668 #endif 669 670 PERLVARI(I, encoding, SV *, NULL) /* character encoding */ 671 672 PERLVAR(I, utf8_idstart, SV *) 673 PERLVAR(I, utf8_idcont, SV *) 674 PERLVAR(I, utf8_xidstart, SV *) 675 PERLVAR(I, utf8_perl_idstart, SV *) 676 PERLVAR(I, utf8_perl_idcont, SV *) 677 PERLVAR(I, utf8_xidcont, SV *) 678 679 PERLVAR(I, sort_RealCmp, SVCOMPARE_t) 680 681 PERLVARI(I, checkav_save, AV *, NULL) /* save CHECK{}s when compiling */ 682 PERLVARI(I, unitcheckav_save, AV *, NULL) 683 /* save UNITCHECK{}s when compiling */ 684 685 PERLVARI(I, clocktick, long, 0) /* this many times() ticks in a second */ 686 687 /* Hooks to shared SVs and locks. */ 688 PERLVARI(I, sharehook, share_proc_t, Perl_sv_nosharing) 689 PERLVARI(I, lockhook, share_proc_t, Perl_sv_nosharing) 690 #ifdef NO_MATHOMS 691 # define PERL_UNLOCK_HOOK Perl_sv_nosharing 692 #else 693 /* This reference ensures that the mathoms are linked with perl */ 694 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking 695 #endif 696 PERLVARI(I, unlockhook, share_proc_t, PERL_UNLOCK_HOOK) 697 698 PERLVARI(I, threadhook, thrhook_proc_t, Perl_nothreadhook) 699 700 /* Can shared object be destroyed */ 701 PERLVARI(I, destroyhook, destroyable_proc_t, Perl_sv_destroyable) 702 703 #ifndef PERL_MICRO 704 PERLVARI(I, signalhook, despatch_signals_proc_t, Perl_despatch_signals) 705 #endif 706 707 PERLVARI(I, isarev, HV *, NULL) /* Reverse map of @ISA dependencies */ 708 709 /* Register of known Method Resolution Orders. 710 What this actually points to is an implementation detail (it may change to 711 a structure incorporating a reference count - use mro_get_from_name to 712 retrieve a C<struct mro_alg *> */ 713 PERLVAR(I, registered_mros, HV *) 714 715 /* Compile-time block start/end hooks */ 716 PERLVAR(I, blockhooks, AV *) 717 718 /* Everything that folds to a given character, for case insensitivity regex 719 * matching */ 720 PERLVARI(I, utf8_foldclosures, HV *, NULL) 721 722 /* List of characters that participate in folds (except marks, etc in 723 * multi-char folds) */ 724 PERLVARI(I, utf8_foldable, SV *, NULL) 725 726 PERLVAR(I, custom_ops, HV *) /* custom op registrations */ 727 728 PERLVAR(I, Xpv, XPV *) /* (unused) held temporary value */ 729 730 /* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be 731 present always, as -DDEBUGGING must be binary compatible with non. */ 732 PERLVARI(I, scopestack_name, const char * *, NULL) 733 734 PERLVAR(I, debug_pad, struct perl_debug_pad) /* always needed because of the re extension */ 735 736 /* Hook for File::Glob */ 737 PERLVARI(I, globhook, globhook_t, NULL) 738 739 /* The last unconditional member of the interpreter structure when 5.20.3 was 740 released. The offset of the end of this is baked into a global variable in 741 any shared perl library which will allow a sanity test in future perl 742 releases. */ 743 #define PERL_LAST_5_18_0_INTERP_MEMBER Iglobhook 744 745 #ifdef PERL_IMPLICIT_CONTEXT 746 PERLVARI(I, my_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */ 747 PERLVARI(I, my_cxt_size, int, 0) /* size of PL_my_cxt_list */ 748 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 749 PERLVARI(I, my_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */ 750 # endif 751 #endif 752 753 #ifdef PERL_TRACK_MEMPOOL 754 /* For use with the memory debugging code in util.c */ 755 PERLVAR(I, memory_debug_header, struct perl_memory_debug_header) 756 #endif 757 758 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 759 /* File descriptor to talk to the child which dumps scalars. */ 760 PERLVARI(I, dumper_fd, int, -1) 761 #endif 762 763 #ifdef PERL_MAD 764 PERLVARI(I, madskills, bool, FALSE) /* preserve all syntactic info */ 765 /* (MAD = Misc Attribute Decoration) */ 766 PERLVARI(I, xmlfp, PerlIO *, NULL) 767 #endif 768 769 #ifdef DEBUG_LEAKING_SCALARS 770 PERLVARI(I, sv_serial, U32, 0) /* SV serial number, used in sv.c */ 771 #endif 772 773 PERLVARA(I, sv_consts, SV_CONSTS_COUNT, SV*) /* constant SVs with precomputed hash value */ 774 775 #ifdef PERL_TRACE_OPS 776 PERLVARA(I, op_exec_cnt, OP_max+2, UV) /* Counts of executed OPs of the given type. 777 If PERL_TRACE_OPS is enabled, we'll dump 778 a summary count of all ops executed in the 779 program at perl_destruct time. For 780 profiling/debugging only. Works only if 781 DEBUGGING is enabled, too. */ 782 #endif 783 784 PERLVAR(I, random_state, PL_RANDOM_STATE_TYPE) 785 786 /* If you are adding a U8 or U16, check to see if there are 'Space' comments 787 * above on where there are gaps which currently will be structure padding. */ 788 789 /* Within a stable branch, new variables must be added to the very end, before 790 * this comment, for binary compatibility (the offsets of the old members must 791 * not change). 792 * (Don't forget to add your variable also to perl_clone()!) 793 * XSUB.h provides wrapper functions via perlapi.h that make this 794 * irrelevant, but not all code may be expected to #include XSUB.h. 795 */ 796