| 1 | /* thdrvar.h |
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| 2 | * |
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| 3 | * Copyright (c) 1997-2002, Larry Wall |
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| 4 | * |
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| 5 | * You may distribute under the terms of either the GNU General Public |
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| 6 | * License or the Artistic License, as specified in the README file. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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| 10 | /* |
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| 11 | =head1 Global Variables |
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| 12 | */ |
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| 13 | |
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| 14 | /***********************************************/ |
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| 15 | /* Global only to current thread */ |
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| 16 | /***********************************************/ |
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| 17 | |
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| 18 | /* Don't forget to re-run embed.pl to propagate changes! */ |
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| 19 | |
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| 20 | /* The 'T' prefix is only needed for vars that need appropriate #defines |
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| 21 | * generated when built with or without USE_5005THREADS. It is also used |
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| 22 | * to generate the appropriate export list for win32. |
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| 23 | * |
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| 24 | * When building without USE_5005THREADS, these variables will be truly global. |
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| 25 | * When building without USE_5005THREADS but with MULTIPLICITY, these variables |
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| 26 | * will be global per-interpreter. */ |
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| 27 | |
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| 28 | /* Important ones in the first cache line (if alignment is done right) */ |
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| 29 | |
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| 30 | #ifdef USE_5005THREADS |
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| 31 | PERLVAR(interp, PerlInterpreter*) /* thread owner */ |
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| 32 | #endif |
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| 33 | |
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| 34 | PERLVAR(Tstack_sp, SV **) /* top of the stack */ |
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| 35 | #ifdef OP_IN_REGISTER |
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| 36 | PERLVAR(Topsave, OP *) |
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| 37 | #else |
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| 38 | PERLVAR(Top, OP *) /* currently executing op */ |
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| 39 | #endif |
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| 40 | PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */ |
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| 41 | |
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| 42 | PERLVAR(Tstack_base, SV **) |
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| 43 | PERLVAR(Tstack_max, SV **) |
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| 44 | |
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| 45 | PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */ |
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| 46 | PERLVAR(Tscopestack_ix, I32) |
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| 47 | PERLVAR(Tscopestack_max,I32) |
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| 48 | |
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| 49 | PERLVAR(Tsavestack, ANY *) /* items that need to be restored |
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| 50 | when LEAVEing scopes we've ENTERed */ |
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| 51 | PERLVAR(Tsavestack_ix, I32) |
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| 52 | PERLVAR(Tsavestack_max, I32) |
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| 53 | |
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| 54 | PERLVAR(Ttmps_stack, SV **) /* mortals we've made */ |
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| 55 | PERLVARI(Ttmps_ix, I32, -1) |
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| 56 | PERLVARI(Ttmps_floor, I32, -1) |
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| 57 | PERLVAR(Ttmps_max, I32) |
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| 58 | |
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| 59 | PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */ |
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| 60 | PERLVAR(Tmarkstack_ptr, I32 *) |
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| 61 | PERLVAR(Tmarkstack_max, I32 *) |
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| 62 | |
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| 63 | PERLVAR(Tretstack, OP **) /* OPs we have postponed executing */ |
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| 64 | PERLVAR(Tretstack_ix, I32) |
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| 65 | PERLVAR(Tretstack_max, I32) |
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| 66 | |
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| 67 | PERLVAR(TSv, SV *) /* used to hold temporary values */ |
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| 68 | PERLVAR(TXpv, XPV *) /* used to hold temporary values */ |
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| 69 | |
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| 70 | /* |
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| 71 | =for apidoc Amn|STRLEN|PL_na |
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| 72 | |
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| 73 | A convenience variable which is typically used with C<SvPV> when one |
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| 74 | doesn't care about the length of the string. It is usually more efficient |
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| 75 | to either declare a local variable and use that instead or to use the |
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| 76 | C<SvPV_nolen> macro. |
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| 77 | |
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| 78 | =cut |
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| 79 | */ |
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| 80 | |
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| 81 | PERLVAR(Tna, STRLEN) /* for use in SvPV when length is |
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| 82 | Not Applicable */ |
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| 83 | |
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| 84 | /* stat stuff */ |
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| 85 | PERLVAR(Tstatbuf, Stat_t) |
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| 86 | PERLVAR(Tstatcache, Stat_t) /* _ */ |
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| 87 | PERLVAR(Tstatgv, GV *) |
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| 88 | PERLVARI(Tstatname, SV *, Nullsv) |
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| 89 | |
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| 90 | #ifdef HAS_TIMES |
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| 91 | PERLVAR(Ttimesbuf, struct tms) |
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| 92 | #endif |
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| 93 | |
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| 94 | /* Fields used by magic variables such as $@, $/ and so on */ |
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| 95 | PERLVAR(Ttainted, bool) /* using variables controlled by $< */ |
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| 96 | PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */ |
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| 97 | PERLVAR(Tnrs, SV *) /* placeholder: unused since 5.8.0 (5.7.2 patch #12027 for bug ID 20010815.012) */ |
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| 98 | |
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| 99 | /* |
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| 100 | =for apidoc mn|SV*|PL_rs |
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| 101 | |
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| 102 | The input record separator - C<$/> in Perl space. |
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| 103 | |
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| 104 | =for apidoc mn|GV*|PL_last_in_gv |
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| 105 | |
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| 106 | The GV which was last used for a filehandle input operation. (C<< <FH> >>) |
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| 107 | |
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| 108 | =for apidoc mn|SV*|PL_ofs_sv |
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| 109 | |
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| 110 | The output field separator - C<$,> in Perl space. |
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| 111 | |
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| 112 | =cut |
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| 113 | */ |
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| 114 | |
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| 115 | PERLVAR(Trs, SV *) /* input record separator $/ */ |
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| 116 | PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */ |
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| 117 | PERLVAR(Tofs_sv, SV *) /* output field separator $, */ |
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| 118 | PERLVAR(Tdefoutgv, GV *) /* default FH for output */ |
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| 119 | PERLVARI(Tchopset, char *, " \n-") /* $: */ |
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| 120 | PERLVAR(Tformtarget, SV *) |
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| 121 | PERLVAR(Tbodytarget, SV *) |
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| 122 | PERLVAR(Ttoptarget, SV *) |
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| 123 | |
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| 124 | /* Stashes */ |
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| 125 | PERLVAR(Tdefstash, HV *) /* main symbol table */ |
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| 126 | PERLVAR(Tcurstash, HV *) /* symbol table for current package */ |
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| 127 | |
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| 128 | PERLVAR(Trestartop, OP *) /* propagating an error from croak? */ |
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| 129 | PERLVARI(Tcurcop, COP * VOL, &PL_compiling) |
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| 130 | PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */ |
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| 131 | PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */ |
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| 132 | PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */ |
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| 133 | PERLVAR(Tlocalizing, int) /* are we processing a local() list? */ |
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| 134 | |
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| 135 | PERLVAR(Tcurstack, AV *) /* THE STACK */ |
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| 136 | PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */ |
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| 137 | PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */ |
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| 138 | |
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| 139 | PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */ |
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| 140 | PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */ |
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| 141 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
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| 142 | PERLVARI(Tprotect, protect_proc_t, MEMBER_TO_FPTR(Perl_default_protect)) |
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| 143 | #endif |
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| 144 | PERLVARI(Terrors, SV *, Nullsv) /* outstanding queued errors */ |
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| 145 | |
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| 146 | /* statics "owned" by various functions */ |
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| 147 | PERLVAR(Tav_fetch_sv, SV *) /* owned by av_fetch() */ |
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| 148 | PERLVAR(Thv_fetch_sv, SV *) /* owned by hv_fetch() */ |
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| 149 | PERLVAR(Thv_fetch_ent_mh, HE) /* owned by hv_fetch_ent() */ |
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| 150 | |
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| 151 | PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */ |
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| 152 | |
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| 153 | PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */ |
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| 154 | PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */ |
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| 155 | |
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| 156 | /* sort stuff */ |
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| 157 | PERLVAR(Tsortcop, OP *) /* user defined sort routine */ |
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| 158 | PERLVAR(Tsortstash, HV *) /* which is in some package or other */ |
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| 159 | PERLVAR(Tfirstgv, GV *) /* $a */ |
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| 160 | PERLVAR(Tsecondgv, GV *) /* $b */ |
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| 161 | PERLVAR(Tsortcxix, I32) /* from pp_ctl.c */ |
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| 162 | |
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| 163 | /* float buffer */ |
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| 164 | PERLVAR(Tefloatbuf, char*) |
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| 165 | PERLVAR(Tefloatsize, STRLEN) |
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| 166 | |
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| 167 | /* regex stuff */ |
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| 168 | |
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| 169 | PERLVAR(Tscreamfirst, I32 *) |
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| 170 | PERLVAR(Tscreamnext, I32 *) |
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| 171 | PERLVARI(Tmaxscream, I32, -1) |
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| 172 | PERLVAR(Tlastscream, SV *) |
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| 173 | |
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| 174 | PERLVAR(Tregdummy, regnode) /* from regcomp.c */ |
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| 175 | PERLVAR(Tregcomp_parse, char*) /* Input-scan pointer. */ |
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| 176 | PERLVAR(Tregxend, char*) /* End of input for compile */ |
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| 177 | PERLVAR(Tregcode, regnode*) /* Code-emit pointer; ®dummy = don't */ |
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| 178 | PERLVAR(Tregnaughty, I32) /* How bad is this pattern? */ |
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| 179 | PERLVAR(Tregsawback, I32) /* Did we see \1, ...? */ |
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| 180 | PERLVAR(Tregprecomp, char *) /* uncompiled string. */ |
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| 181 | PERLVAR(Tregnpar, I32) /* () count. */ |
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| 182 | PERLVAR(Tregsize, I32) /* Code size. */ |
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| 183 | PERLVAR(Tregflags, U32) /* are we folding, multilining? */ |
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| 184 | PERLVAR(Tregseen, U32) /* from regcomp.c */ |
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| 185 | PERLVAR(Tseen_zerolen, I32) /* from regcomp.c */ |
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| 186 | PERLVAR(Tseen_evals, I32) /* from regcomp.c */ |
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| 187 | PERLVAR(Tregcomp_rx, regexp *) /* from regcomp.c */ |
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| 188 | PERLVAR(Textralen, I32) /* from regcomp.c */ |
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| 189 | PERLVAR(Tcolorset, int) /* from regcomp.c */ |
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| 190 | PERLVARA(Tcolors,6, char *) /* from regcomp.c */ |
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| 191 | PERLVAR(Treg_whilem_seen, I32) /* number of WHILEM in this expr */ |
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| 192 | PERLVAR(Treginput, char *) /* String-input pointer. */ |
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| 193 | PERLVAR(Tregbol, char *) /* Beginning of input, for ^ check. */ |
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| 194 | PERLVAR(Tregeol, char *) /* End of input, for $ check. */ |
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| 195 | PERLVAR(Tregstartp, I32 *) /* Pointer to startp array. */ |
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| 196 | PERLVAR(Tregendp, I32 *) /* Ditto for endp. */ |
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| 197 | PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */ |
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| 198 | PERLVAR(Treglastcloseparen, U32 *) /* Similarly for lastcloseparen. */ |
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| 199 | PERLVAR(Tregtill, char *) /* How far we are required to go. */ |
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| 200 | PERLVAR(Tregcompat1, char) /* used to be regprev1 */ |
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| 201 | PERLVAR(Treg_start_tmp, char **) /* from regexec.c */ |
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| 202 | PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */ |
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| 203 | PERLVAR(Tregdata, struct reg_data *) |
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| 204 | /* from regexec.c renamed was data */ |
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| 205 | PERLVAR(Tbostr, char *) /* from regexec.c */ |
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| 206 | PERLVAR(Treg_flags, U32) /* from regexec.c */ |
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| 207 | PERLVAR(Treg_eval_set, I32) /* from regexec.c */ |
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| 208 | PERLVAR(Tregnarrate, I32) /* from regexec.c */ |
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| 209 | PERLVAR(Tregprogram, regnode *) /* from regexec.c */ |
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| 210 | PERLVARI(Tregindent, int, 0) /* from regexec.c */ |
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| 211 | PERLVAR(Tregcc, CURCUR *) /* from regexec.c */ |
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| 212 | PERLVAR(Treg_call_cc, struct re_cc_state *) /* from regexec.c */ |
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| 213 | PERLVAR(Treg_re, regexp *) /* from regexec.c */ |
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| 214 | PERLVAR(Treg_ganch, char *) /* position of \G */ |
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| 215 | PERLVAR(Treg_sv, SV *) /* what we match against */ |
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| 216 | PERLVAR(Treg_magic, MAGIC *) /* pos-magic of what we match */ |
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| 217 | PERLVAR(Treg_oldpos, I32) /* old pos of what we match */ |
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| 218 | PERLVARI(Treg_oldcurpm, PMOP*, NULL) /* curpm before match */ |
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| 219 | PERLVARI(Treg_curpm, PMOP*, NULL) /* curpm during match */ |
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| 220 | PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */ |
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| 221 | PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */ |
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| 222 | PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */ |
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| 223 | PERLVAR(Treg_leftiter, I32) /* wait until caching pos */ |
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| 224 | PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */ |
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| 225 | PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */ |
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| 226 | |
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| 227 | PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep)) |
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| 228 | /* Pointer to peephole optimizer */ |
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| 229 | PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp)) |
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| 230 | /* Pointer to REx compiler */ |
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| 231 | PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags)) |
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| 232 | /* Pointer to REx executer */ |
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| 233 | PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start)) |
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| 234 | /* Pointer to optimized REx executer */ |
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| 235 | PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string)) |
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| 236 | /* Pointer to optimized REx string */ |
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| 237 | PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree)) |
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| 238 | /* Pointer to REx free()er */ |
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| 239 | |
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| 240 | PERLVARI(Treginterp_cnt,int, 0) /* Whether `Regexp' |
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| 241 | was interpolated. */ |
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| 242 | PERLVARI(Treg_starttry, char *, 0) /* -Dr: where regtry was called. */ |
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| 243 | PERLVARI(Twatchaddr, char **, 0) |
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| 244 | PERLVAR(Twatchok, char *) |
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| 245 | |
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| 246 | /* Note that the variables below are all explicitly referenced in the code |
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| 247 | * as thr->whatever and therefore don't need the 'T' prefix. */ |
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| 248 | |
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| 249 | #ifdef USE_5005THREADS |
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| 250 | |
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| 251 | PERLVAR(oursv, SV *) |
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| 252 | PERLVAR(cvcache, HV *) |
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| 253 | PERLVAR(self, perl_os_thread) /* Underlying thread object */ |
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| 254 | PERLVAR(flags, U32) |
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| 255 | PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */ |
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| 256 | PERLVAR(threadsvp, SV **) /* AvARRAY(threadsv) */ |
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| 257 | PERLVAR(specific, AV *) /* Thread-specific user data */ |
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| 258 | PERLVAR(errsv, SV *) /* Backing SV for $@ */ |
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| 259 | PERLVAR(mutex, perl_mutex) /* For the fields others can change */ |
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| 260 | PERLVAR(tid, U32) |
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| 261 | PERLVAR(prev, struct perl_thread *) |
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| 262 | PERLVAR(next, struct perl_thread *) |
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| 263 | /* Circular linked list of threads */ |
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| 264 | |
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| 265 | #ifdef HAVE_THREAD_INTERN |
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| 266 | PERLVAR(i, struct thread_intern) |
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| 267 | /* Platform-dependent internals */ |
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| 268 | #endif |
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| 269 | |
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| 270 | PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */ |
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| 271 | PERLVAR(thr_done, bool) /* True when the thread has finished */ |
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| 272 | |
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| 273 | #endif /* USE_5005THREADS */ |
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| 274 | |
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| 275 | PERLVAR(Treg_match_utf8, bool) /* was what we matched against utf8 */ |
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| 276 | |
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