3 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others
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.
11 =head1 Global Variables
14 /***********************************************/
15 /* Global only to current thread */
16 /***********************************************/
18 /* Don't forget to re-run embed.pl to propagate changes! */
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.
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. */
28 /* Important ones in the first cache line (if alignment is done right) */
30 PERLVAR(Tstack_sp, SV **) /* top of the stack */
32 PERLVAR(Topsave, OP *)
34 PERLVAR(Top, OP *) /* currently executing op */
36 PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */
38 PERLVAR(Tstack_base, SV **)
39 PERLVAR(Tstack_max, SV **)
41 PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */
42 PERLVAR(Tscopestack_ix, I32)
43 PERLVAR(Tscopestack_max,I32)
45 PERLVAR(Tsavestack, ANY *) /* items that need to be restored
46 when LEAVEing scopes we've ENTERed */
47 PERLVAR(Tsavestack_ix, I32)
48 PERLVAR(Tsavestack_max, I32)
50 PERLVAR(Ttmps_stack, SV **) /* mortals we've made */
51 PERLVARI(Ttmps_ix, I32, -1)
52 PERLVARI(Ttmps_floor, I32, -1)
53 PERLVAR(Ttmps_max, I32)
55 PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */
56 PERLVAR(Tmarkstack_ptr, I32 *)
57 PERLVAR(Tmarkstack_max, I32 *)
59 PERLVAR(TSv, SV *) /* used to hold temporary values */
60 PERLVAR(TXpv, XPV *) /* used to hold temporary values */
63 =for apidoc Amn|STRLEN|PL_na
65 A convenience variable which is typically used with C<SvPV> when one
66 doesn't care about the length of the string. It is usually more efficient
67 to either declare a local variable and use that instead or to use the
73 PERLVAR(Tna, STRLEN) /* for use in SvPV when length is
77 PERLVAR(Tstatbuf, Stat_t)
78 PERLVAR(Tstatcache, Stat_t) /* _ */
79 PERLVAR(Tstatgv, GV *)
80 PERLVARI(Tstatname, SV *, NULL)
83 PERLVAR(Ttimesbuf, struct tms)
86 /* Fields used by magic variables such as $@, $/ and so on */
87 PERLVAR(Ttainted, bool) /* using variables controlled by $< */
88 PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */
91 =for apidoc mn|SV*|PL_rs
93 The input record separator - C<$/> in Perl space.
95 =for apidoc mn|GV*|PL_last_in_gv
97 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
99 =for apidoc mn|SV*|PL_ofs_sv
101 The output field separator - C<$,> in Perl space.
106 PERLVAR(Trs, SV *) /* input record separator $/ */
107 PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */
108 PERLVAR(Tofs_sv, SV *) /* output field separator $, */
109 PERLVAR(Tdefoutgv, GV *) /* default FH for output */
110 PERLVARI(Tchopset, const char *, " \n-") /* $: */
111 PERLVAR(Tformtarget, SV *)
112 PERLVAR(Tbodytarget, SV *)
113 PERLVAR(Ttoptarget, SV *)
116 PERLVAR(Tdefstash, HV *) /* main symbol table */
117 PERLVAR(Tcurstash, HV *) /* symbol table for current package */
119 PERLVAR(Trestartop, OP *) /* propagating an error from croak? */
120 PERLVARI(Tcurcop, COP * VOL, &PL_compiling)
121 PERLVAR(Tin_eval, VOL U8) /* trap "fatal" errors? */
122 PERLVAR(Tdelaymagic, U16) /* ($<,$>) = ... */
123 PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */
124 PERLVAR(Tlocalizing, int) /* are we processing a local() list? */
126 PERLVAR(Tcurstack, AV *) /* THE STACK */
127 PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */
128 PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */
130 PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */
131 PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */
132 PERLVARI(Terrors, SV *, NULL) /* outstanding queued errors */
134 /* statics "owned" by various functions */
135 PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */
136 PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */
137 PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
139 PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */
141 PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */
142 PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */
145 PERLVAR(Tsortcop, OP *) /* user defined sort routine */
146 PERLVAR(Tsortstash, HV *) /* which is in some package or other */
147 PERLVAR(Tfirstgv, GV *) /* $a */
148 PERLVAR(Tsecondgv, GV *) /* $b */
151 PERLVAR(Tefloatbuf, char*)
152 PERLVAR(Tefloatsize, STRLEN)
156 PERLVAR(Tscreamfirst, I32 *)
157 PERLVAR(Tscreamnext, I32 *)
158 PERLVARI(Tmaxscream, I32, -1)
159 PERLVAR(Tlastscream, SV *)
161 PERLVAR(Treg_state, struct re_save_state)
162 PERLVAR(Tregdummy, regnode) /* from regcomp.c */
163 PERLVAR(Tcolorset, int) /* from regcomp.c */
164 PERLVARA(Tcolors,6, char *) /* from regcomp.c */
166 PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
167 /* Pointer to peephole optimizer */
169 PERLVARI(Treginterp_cnt,int, 0) /* Whether "Regexp" was interpolated. */
170 PERLVARI(Twatchaddr, char **, 0)
171 PERLVAR(Twatchok, char *)
173 /* Note that the variables below are all explicitly referenced in the code
174 * as thr->whatever and therefore don't need the 'T' prefix. */
176 /* the currently active slab in a chain of slabs of regmatch states,
177 * and the currently active state within that slab */
179 PERLVARI(Tregmatch_slab, regmatch_slab *, NULL)
180 PERLVAR(Tregmatch_state, regmatch_state *)