| [3181] | 1 | /* thdrvar.h
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| 2 | *
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| 3 | * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others
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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, const 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 *) /* unused as of change #19268 */
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| 148 | PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */
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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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