| | 1 | /* thdrvar.h |
| | 2 | * |
| | 3 | * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
| | 4 | * 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 | /* |
| | 12 | =head1 Global Variables |
| | 13 | */ |
| | 14 | |
| | 15 | /***********************************************/ |
| | 16 | /* Global only to current thread */ |
| | 17 | /***********************************************/ |
| | 18 | |
| | 19 | /* Don't forget to re-run embed.pl to propagate changes! */ |
| | 20 | |
| | 21 | /* The 'T' prefix is only needed for vars that need appropriate #defines |
| | 22 | * generated when built with or without USE_5005THREADS. It is also used |
| | 23 | * to generate the appropriate export list for win32. |
| | 24 | * |
| | 25 | * When building without USE_5005THREADS, these variables will be truly global. |
| | 26 | * When building without USE_5005THREADS but with MULTIPLICITY, these variables |
| | 27 | * will be global per-interpreter. */ |
| | 28 | |
| | 29 | /* Important ones in the first cache line (if alignment is done right) */ |
| | 30 | |
| | 31 | PERLVAR(Tstack_sp, SV **) /* top of the stack */ |
| | 32 | #ifdef OP_IN_REGISTER |
| | 33 | PERLVAR(Topsave, OP *) |
| | 34 | #else |
| | 35 | PERLVAR(Top, OP *) /* currently executing op */ |
| | 36 | #endif |
| | 37 | PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */ |
| | 38 | |
| | 39 | PERLVAR(Tstack_base, SV **) |
| | 40 | PERLVAR(Tstack_max, SV **) |
| | 41 | |
| | 42 | PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */ |
| | 43 | PERLVAR(Tscopestack_ix, I32) |
| | 44 | PERLVAR(Tscopestack_max,I32) |
| | 45 | |
| | 46 | PERLVAR(Tsavestack, ANY *) /* items that need to be restored |
| | 47 | when LEAVEing scopes we've ENTERed */ |
| | 48 | PERLVAR(Tsavestack_ix, I32) |
| | 49 | PERLVAR(Tsavestack_max, I32) |
| | 50 | |
| | 51 | PERLVAR(Ttmps_stack, SV **) /* mortals we've made */ |
| | 52 | PERLVARI(Ttmps_ix, I32, -1) |
| | 53 | PERLVARI(Ttmps_floor, I32, -1) |
| | 54 | PERLVAR(Ttmps_max, I32) |
| | 55 | |
| | 56 | PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */ |
| | 57 | PERLVAR(Tmarkstack_ptr, I32 *) |
| | 58 | PERLVAR(Tmarkstack_max, I32 *) |
| | 59 | |
| | 60 | PERLVAR(TSv, SV *) /* used to hold temporary values */ |
| | 61 | PERLVAR(TXpv, XPV *) /* used to hold temporary values */ |
| | 62 | |
| | 63 | /* |
| | 64 | =for apidoc Amn|STRLEN|PL_na |
| | 65 | |
| | 66 | A convenience variable which is typically used with C<SvPV> when one |
| | 67 | doesn't care about the length of the string. It is usually more efficient |
| | 68 | to either declare a local variable and use that instead or to use the |
| | 69 | C<SvPV_nolen> macro. |
| | 70 | |
| | 71 | =cut |
| | 72 | */ |
| | 73 | |
| | 74 | PERLVAR(Tna, STRLEN) /* for use in SvPV when length is |
| | 75 | Not Applicable */ |
| | 76 | |
| | 77 | /* stat stuff */ |
| | 78 | PERLVAR(Tstatbuf, Stat_t) |
| | 79 | PERLVAR(Tstatcache, Stat_t) /* _ */ |
| | 80 | PERLVAR(Tstatgv, GV *) |
| | 81 | PERLVARI(Tstatname, SV *, NULL) |
| | 82 | |
| | 83 | #ifdef HAS_TIMES |
| | 84 | PERLVAR(Ttimesbuf, struct tms) |
| | 85 | #endif |
| | 86 | |
| | 87 | /* Fields used by magic variables such as $@, $/ and so on */ |
| | 88 | PERLVAR(Ttainted, bool) /* using variables controlled by $< */ |
| | 89 | PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */ |
| | 90 | |
| | 91 | /* |
| | 92 | =for apidoc mn|SV*|PL_rs |
| | 93 | |
| | 94 | The input record separator - C<$/> in Perl space. |
| | 95 | |
| | 96 | =for apidoc mn|GV*|PL_last_in_gv |
| | 97 | |
| | 98 | The GV which was last used for a filehandle input operation. (C<< <FH> >>) |
| | 99 | |
| | 100 | =for apidoc mn|SV*|PL_ofs_sv |
| | 101 | |
| | 102 | The output field separator - C<$,> in Perl space. |
| | 103 | |
| | 104 | =cut |
| | 105 | */ |
| | 106 | |
| | 107 | PERLVAR(Trs, SV *) /* input record separator $/ */ |
| | 108 | PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */ |
| | 109 | PERLVAR(Tofs_sv, SV *) /* output field separator $, */ |
| | 110 | PERLVAR(Tdefoutgv, GV *) /* default FH for output */ |
| | 111 | PERLVARI(Tchopset, const char *, " \n-") /* $: */ |
| | 112 | PERLVAR(Tformtarget, SV *) |
| | 113 | PERLVAR(Tbodytarget, SV *) |
| | 114 | PERLVAR(Ttoptarget, SV *) |
| | 115 | |
| | 116 | /* Stashes */ |
| | 117 | PERLVAR(Tdefstash, HV *) /* main symbol table */ |
| | 118 | PERLVAR(Tcurstash, HV *) /* symbol table for current package */ |
| | 119 | |
| | 120 | PERLVAR(Trestartop, OP *) /* propagating an error from croak? */ |
| | 121 | PERLVARI(Tcurcop, COP * VOL, &PL_compiling) |
| | 122 | PERLVAR(Tin_eval, VOL U8) /* trap "fatal" errors? */ |
| | 123 | PERLVAR(Tdelaymagic, U16) /* ($<,$>) = ... */ |
| | 124 | PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */ |
| | 125 | PERLVAR(Tlocalizing, int) /* are we processing a local() list? */ |
| | 126 | |
| | 127 | PERLVAR(Tcurstack, AV *) /* THE STACK */ |
| | 128 | PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */ |
| | 129 | PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */ |
| | 130 | |
| | 131 | PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */ |
| | 132 | PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */ |
| | 133 | PERLVARI(Terrors, SV *, NULL) /* outstanding queued errors */ |
| | 134 | |
| | 135 | /* statics "owned" by various functions */ |
| | 136 | PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */ |
| | 137 | PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */ |
| | 138 | PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */ |
| | 139 | |
| | 140 | PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */ |
| | 141 | |
| | 142 | PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */ |
| | 143 | PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */ |
| | 144 | |
| | 145 | /* sort stuff */ |
| | 146 | PERLVAR(Tsortcop, OP *) /* user defined sort routine */ |
| | 147 | PERLVAR(Tsortstash, HV *) /* which is in some package or other */ |
| | 148 | PERLVAR(Tfirstgv, GV *) /* $a */ |
| | 149 | PERLVAR(Tsecondgv, GV *) /* $b */ |
| | 150 | |
| | 151 | /* float buffer */ |
| | 152 | PERLVAR(Tefloatbuf, char*) |
| | 153 | PERLVAR(Tefloatsize, STRLEN) |
| | 154 | |
| | 155 | /* regex stuff */ |
| | 156 | |
| | 157 | PERLVAR(Tscreamfirst, I32 *) |
| | 158 | PERLVAR(Tscreamnext, I32 *) |
| | 159 | PERLVARI(Tmaxscream, I32, -1) |
| | 160 | PERLVAR(Tlastscream, SV *) |
| | 161 | |
| | 162 | PERLVAR(Treg_state, struct re_save_state) |
| | 163 | PERLVAR(Tregdummy, regnode) /* from regcomp.c */ |
| | 164 | PERLVAR(Tcolorset, int) /* from regcomp.c */ |
| | 165 | PERLVARA(Tcolors,6, char *) /* from regcomp.c */ |
| | 166 | |
| | 167 | PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep)) |
| | 168 | /* Pointer to peephole optimizer */ |
| | 169 | |
| | 170 | PERLVARI(Treginterp_cnt,int, 0) /* Whether "Regexp" was interpolated. */ |
| | 171 | PERLVARI(Twatchaddr, char **, 0) |
| | 172 | PERLVAR(Twatchok, char *) |
| | 173 | |
| | 174 | /* Note that the variables below are all explicitly referenced in the code |
| | 175 | * as thr->whatever and therefore don't need the 'T' prefix. */ |
| | 176 | |
| | 177 | /* the currently active slab in a chain of slabs of regmatch states, |
| | 178 | * and the currently active state within that slab */ |
| | 179 | |
| | 180 | PERLVARI(Tregmatch_slab, regmatch_slab *, NULL) |
| | 181 | PERLVAR(Tregmatch_state, regmatch_state *) |
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