1 /* thdrvar.h 2 * 3 * Copyright (C) 1999, 2000, 2001, 2002, by Larry Wall and others 4 * 5 * You may distribute under the terms of either the GNU General Public 6 * License or the Artistic License, as specified in the README file. 7 * 8 */ 9 10 /* 11 =head1 Global Variables 12 */ 13 14 /***********************************************/ 15 /* Global only to current thread */ 16 /***********************************************/ 17 18 /* Don't forget to re-run embed.pl to propagate changes! */ 19 20 /* The 'T' prefix is only needed for vars that need appropriate #defines 21 * generated when built with or without USE_5005THREADS. It is also used 22 * to generate the appropriate export list for win32. 23 * 24 * When building without USE_5005THREADS, these variables will be truly global. 25 * When building without USE_5005THREADS but with MULTIPLICITY, these variables 26 * will be global per-interpreter. */ 27 28 /* Important ones in the first cache line (if alignment is done right) */ 29 30 #ifdef USE_5005THREADS 31 PERLVAR(interp, PerlInterpreter*) /* thread owner */ 32 #endif 33 34 PERLVAR(Tstack_sp, SV **) /* top of the stack */ 35 #ifdef OP_IN_REGISTER 36 PERLVAR(Topsave, OP *) 37 #else 38 PERLVAR(Top, OP *) /* currently executing op */ 39 #endif 40 PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */ 41 42 PERLVAR(Tstack_base, SV **) 43 PERLVAR(Tstack_max, SV **) 44 45 PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */ 46 PERLVAR(Tscopestack_ix, I32) 47 PERLVAR(Tscopestack_max,I32) 48 49 PERLVAR(Tsavestack, ANY *) /* items that need to be restored 50 when LEAVEing scopes we've ENTERed */ 51 PERLVAR(Tsavestack_ix, I32) 52 PERLVAR(Tsavestack_max, I32) 53 54 PERLVAR(Ttmps_stack, SV **) /* mortals we've made */ 55 PERLVARI(Ttmps_ix, I32, -1) 56 PERLVARI(Ttmps_floor, I32, -1) 57 PERLVAR(Ttmps_max, I32) 58 59 PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */ 60 PERLVAR(Tmarkstack_ptr, I32 *) 61 PERLVAR(Tmarkstack_max, I32 *) 62 63 PERLVAR(Tretstack, OP **) /* OPs we have postponed executing */ 64 PERLVAR(Tretstack_ix, I32) 65 PERLVAR(Tretstack_max, I32) 66 67 PERLVAR(TSv, SV *) /* used to hold temporary values */ 68 PERLVAR(TXpv, XPV *) /* used to hold temporary values */ 69 70 /* 71 =for apidoc Amn|STRLEN|PL_na 72 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 76 C<SvPV_nolen> macro. 77 78 =cut 79 */ 80 81 PERLVAR(Tna, STRLEN) /* for use in SvPV when length is 82 Not Applicable */ 83 84 /* stat stuff */ 85 PERLVAR(Tstatbuf, Stat_t) 86 PERLVAR(Tstatcache, Stat_t) /* _ */ 87 PERLVAR(Tstatgv, GV *) 88 PERLVARI(Tstatname, SV *, Nullsv) 89 90 #ifdef HAS_TIMES 91 PERLVAR(Ttimesbuf, struct tms) 92 #endif 93 94 /* Fields used by magic variables such as $@, $/ and so on */ 95 PERLVAR(Ttainted, bool) /* using variables controlled by $< */ 96 PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */ 97 PERLVAR(Tnrs, SV *) /* placeholder: unused since 5.8.0 (5.7.2 patch #12027 for bug ID 20010815.012) */ 98 99 /* 100 =for apidoc mn|SV*|PL_rs 101 102 The input record separator - C<$/> in Perl space. 103 104 =for apidoc mn|GV*|PL_last_in_gv 105 106 The GV which was last used for a filehandle input operation. (C<< <FH> >>) 107 108 =for apidoc mn|SV*|PL_ofs_sv 109 110 The output field separator - C<$,> in Perl space. 111 112 =cut 113 */ 114 115 PERLVAR(Trs, SV *) /* input record separator $/ */ 116 PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */ 117 PERLVAR(Tofs_sv, SV *) /* output field separator $, */ 118 PERLVAR(Tdefoutgv, GV *) /* default FH for output */ 119 PERLVARI(Tchopset, char *, " \n-") /* $: */ 120 PERLVAR(Tformtarget, SV *) 121 PERLVAR(Tbodytarget, SV *) 122 PERLVAR(Ttoptarget, SV *) 123 124 /* Stashes */ 125 PERLVAR(Tdefstash, HV *) /* main symbol table */ 126 PERLVAR(Tcurstash, HV *) /* symbol table for current package */ 127 128 PERLVAR(Trestartop, OP *) /* propagating an error from croak? */ 129 PERLVARI(Tcurcop, COP * VOL, &PL_compiling) 130 PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */ 131 PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */ 132 PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */ 133 PERLVAR(Tlocalizing, int) /* are we processing a local() list? */ 134 135 PERLVAR(Tcurstack, AV *) /* THE STACK */ 136 PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */ 137 PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */ 138 139 PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */ 140 PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */ 141 #ifdef PERL_FLEXIBLE_EXCEPTIONS 142 PERLVARI(Tprotect, protect_proc_t, MEMBER_TO_FPTR(Perl_default_protect)) 143 #endif 144 PERLVARI(Terrors, SV *, Nullsv) /* outstanding queued errors */ 145 146 /* statics "owned" by various functions */ 147 PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */ 148 PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */ 149 PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */ 150 151 PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */ 152 153 PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */ 154 PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */ 155 156 /* sort stuff */ 157 PERLVAR(Tsortcop, OP *) /* user defined sort routine */ 158 PERLVAR(Tsortstash, HV *) /* which is in some package or other */ 159 PERLVAR(Tfirstgv, GV *) /* $a */ 160 PERLVAR(Tsecondgv, GV *) /* $b */ 161 PERLVAR(Tsortcxix, I32) /* from pp_ctl.c */ 162 163 /* float buffer */ 164 PERLVAR(Tefloatbuf, char*) 165 PERLVAR(Tefloatsize, STRLEN) 166 167 /* regex stuff */ 168 169 PERLVAR(Tscreamfirst, I32 *) 170 PERLVAR(Tscreamnext, I32 *) 171 PERLVARI(Tmaxscream, I32, -1) 172 PERLVAR(Tlastscream, SV *) 173 174 PERLVAR(Tregdummy, regnode) /* from regcomp.c */ 175 PERLVAR(Tregcomp_parse, char*) /* Input-scan pointer. */ 176 PERLVAR(Tregxend, char*) /* End of input for compile */ 177 PERLVAR(Tregcode, regnode*) /* Code-emit pointer; ®dummy = don't */ 178 PERLVAR(Tregnaughty, I32) /* How bad is this pattern? */ 179 PERLVAR(Tregsawback, I32) /* Did we see \1, ...? */ 180 PERLVAR(Tregprecomp, char *) /* uncompiled string. */ 181 PERLVAR(Tregnpar, I32) /* () count. */ 182 PERLVAR(Tregsize, I32) /* Code size. */ 183 PERLVAR(Tregflags, U32) /* are we folding, multilining? */ 184 PERLVAR(Tregseen, U32) /* from regcomp.c */ 185 PERLVAR(Tseen_zerolen, I32) /* from regcomp.c */ 186 PERLVAR(Tseen_evals, I32) /* from regcomp.c */ 187 PERLVAR(Tregcomp_rx, regexp *) /* from regcomp.c */ 188 PERLVAR(Textralen, I32) /* from regcomp.c */ 189 PERLVAR(Tcolorset, int) /* from regcomp.c */ 190 PERLVARA(Tcolors,6, char *) /* from regcomp.c */ 191 PERLVAR(Treg_whilem_seen, I32) /* number of WHILEM in this expr */ 192 PERLVAR(Treginput, char *) /* String-input pointer. */ 193 PERLVAR(Tregbol, char *) /* Beginning of input, for ^ check. */ 194 PERLVAR(Tregeol, char *) /* End of input, for $ check. */ 195 PERLVAR(Tregstartp, I32 *) /* Pointer to startp array. */ 196 PERLVAR(Tregendp, I32 *) /* Ditto for endp. */ 197 PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */ 198 PERLVAR(Treglastcloseparen, U32 *) /* Similarly for lastcloseparen. */ 199 PERLVAR(Tregtill, char *) /* How far we are required to go. */ 200 PERLVAR(Tregcompat1, char) /* used to be regprev1 */ 201 PERLVAR(Treg_start_tmp, char **) /* from regexec.c */ 202 PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */ 203 PERLVAR(Tregdata, struct reg_data *) 204 /* from regexec.c renamed was data */ 205 PERLVAR(Tbostr, char *) /* from regexec.c */ 206 PERLVAR(Treg_flags, U32) /* from regexec.c */ 207 PERLVAR(Treg_eval_set, I32) /* from regexec.c */ 208 PERLVAR(Tregnarrate, I32) /* from regexec.c */ 209 PERLVAR(Tregprogram, regnode *) /* from regexec.c */ 210 PERLVARI(Tregindent, int, 0) /* from regexec.c */ 211 PERLVAR(Tregcc, CURCUR *) /* from regexec.c */ 212 PERLVAR(Treg_call_cc, struct re_cc_state *) /* from regexec.c */ 213 PERLVAR(Treg_re, regexp *) /* from regexec.c */ 214 PERLVAR(Treg_ganch, char *) /* position of \G */ 215 PERLVAR(Treg_sv, SV *) /* what we match against */ 216 PERLVAR(Treg_magic, MAGIC *) /* pos-magic of what we match */ 217 PERLVAR(Treg_oldpos, I32) /* old pos of what we match */ 218 PERLVARI(Treg_oldcurpm, PMOP*, NULL) /* curpm before match */ 219 PERLVARI(Treg_curpm, PMOP*, NULL) /* curpm during match */ 220 PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */ 221 PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */ 222 PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */ 223 PERLVAR(Treg_leftiter, I32) /* wait until caching pos */ 224 PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */ 225 PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */ 226 227 PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep)) 228 /* Pointer to peephole optimizer */ 229 PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp)) 230 /* Pointer to REx compiler */ 231 PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags)) 232 /* Pointer to REx executer */ 233 PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start)) 234 /* Pointer to optimized REx executer */ 235 PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string)) 236 /* Pointer to optimized REx string */ 237 PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree)) 238 /* Pointer to REx free()er */ 239 240 PERLVARI(Treginterp_cnt,int, 0) /* Whether `Regexp' 241 was interpolated. */ 242 PERLVARI(Treg_starttry, char *, 0) /* -Dr: where regtry was called. */ 243 PERLVARI(Twatchaddr, char **, 0) 244 PERLVAR(Twatchok, char *) 245 246 /* Note that the variables below are all explicitly referenced in the code 247 * as thr->whatever and therefore don't need the 'T' prefix. */ 248 249 #ifdef USE_5005THREADS 250 251 PERLVAR(oursv, SV *) 252 PERLVAR(cvcache, HV *) 253 PERLVAR(self, perl_os_thread) /* Underlying thread object */ 254 PERLVAR(flags, U32) 255 PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */ 256 PERLVAR(threadsvp, SV **) /* AvARRAY(threadsv) */ 257 PERLVAR(specific, AV *) /* Thread-specific user data */ 258 PERLVAR(errsv, SV *) /* Backing SV for $@ */ 259 PERLVAR(mutex, perl_mutex) /* For the fields others can change */ 260 PERLVAR(tid, U32) 261 PERLVAR(prev, struct perl_thread *) 262 PERLVAR(next, struct perl_thread *) 263 /* Circular linked list of threads */ 264 265 #ifdef HAVE_THREAD_INTERN 266 PERLVAR(i, struct thread_intern) 267 /* Platform-dependent internals */ 268 #endif 269 270 PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */ 271 PERLVAR(thr_done, bool) /* True when the thread has finished */ 272 273 #endif /* USE_5005THREADS */ 274 275 PERLVAR(Treg_match_utf8, bool) /* was what we matched against utf8 */ 276 277 PERLVAR(Tcomppad, AV *) /* storage for lexically scoped temporaries */ 278 279