3 * Copyright (C) 1999, 2000, 2001, 2002, 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(Tretstack, OP **) /* OPs we have postponed executing */
60 PERLVAR(Tretstack_ix, I32)
61 PERLVAR(Tretstack_max, I32)
63 PERLVAR(TSv, SV *) /* used to hold temporary values */
64 PERLVAR(TXpv, XPV *) /* used to hold temporary values */
67 =for apidoc Amn|STRLEN|PL_na
69 A convenience variable which is typically used with C<SvPV> when one
70 doesn't care about the length of the string. It is usually more efficient
71 to either declare a local variable and use that instead or to use the
77 PERLVAR(Tna, STRLEN) /* for use in SvPV when length is
81 PERLVAR(Tstatbuf, Stat_t)
82 PERLVAR(Tstatcache, Stat_t) /* _ */
83 PERLVAR(Tstatgv, GV *)
84 PERLVARI(Tstatname, SV *, Nullsv)
87 PERLVAR(Ttimesbuf, struct tms)
90 /* Fields used by magic variables such as $@, $/ and so on */
91 PERLVAR(Ttainted, bool) /* using variables controlled by $< */
92 PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */
93 PERLVAR(Tnrs, SV *) /* was placeholder: unused since 5.8.0 (5.7.2 patch #12027 for bug ID 20010815.012). Used to save rx->saved_copy */
96 =for apidoc mn|SV*|PL_rs
98 The input record separator - C<$/> in Perl space.
100 =for apidoc mn|GV*|PL_last_in_gv
102 The GV which was last used for a filehandle input operation. (C<< <FH> >>)
104 =for apidoc mn|SV*|PL_ofs_sv
106 The output field separator - C<$,> in Perl space.
111 PERLVAR(Trs, SV *) /* input record separator $/ */
112 PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */
113 PERLVAR(Tofs_sv, SV *) /* output field separator $, */
114 PERLVAR(Tdefoutgv, GV *) /* default FH for output */
115 PERLVARI(Tchopset, char *, " \n-") /* $: */
116 PERLVAR(Tformtarget, SV *)
117 PERLVAR(Tbodytarget, SV *)
118 PERLVAR(Ttoptarget, SV *)
121 PERLVAR(Tdefstash, HV *) /* main symbol table */
122 PERLVAR(Tcurstash, HV *) /* symbol table for current package */
124 PERLVAR(Trestartop, OP *) /* propagating an error from croak? */
125 PERLVARI(Tcurcop, COP * VOL, &PL_compiling)
126 PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */
127 PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */
128 PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */
129 PERLVAR(Tlocalizing, int) /* are we processing a local() list? */
131 PERLVAR(Tcurstack, AV *) /* THE STACK */
132 PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */
133 PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */
135 PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */
136 PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */
137 #ifdef PERL_FLEXIBLE_EXCEPTIONS
138 PERLVARI(Tprotect, protect_proc_t, MEMBER_TO_FPTR(Perl_default_protect))
140 PERLVARI(Terrors, SV *, Nullsv) /* outstanding queued errors */
142 /* statics "owned" by various functions */
143 PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */
144 PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */
145 PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
147 PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */
149 PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */
150 PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */
153 PERLVAR(Tsortcop, OP *) /* user defined sort routine */
154 PERLVAR(Tsortstash, HV *) /* which is in some package or other */
155 PERLVAR(Tfirstgv, GV *) /* $a */
156 PERLVAR(Tsecondgv, GV *) /* $b */
157 PERLVAR(Tsortcxix, I32) /* from pp_ctl.c */
160 PERLVAR(Tefloatbuf, char*)
161 PERLVAR(Tefloatsize, STRLEN)
165 PERLVAR(Tscreamfirst, I32 *)
166 PERLVAR(Tscreamnext, I32 *)
167 PERLVARI(Tmaxscream, I32, -1)
168 PERLVAR(Tlastscream, SV *)
170 PERLVAR(Tregdummy, regnode) /* from regcomp.c */
171 PERLVAR(Tregprecomp, char *) /* uncompiled string. */
172 PERLVAR(Tregnpar, I32) /* () count. */
173 PERLVAR(Tregsize, I32) /* Code size. */
174 PERLVAR(Tcolorset, int) /* from regcomp.c */
175 PERLVARA(Tcolors,6, char *) /* from regcomp.c */
176 PERLVAR(Treginput, char *) /* String-input pointer. */
177 PERLVAR(Tregbol, char *) /* Beginning of input, for ^ check. */
178 PERLVAR(Tregeol, char *) /* End of input, for $ check. */
179 PERLVAR(Tregstartp, I32 *) /* Pointer to startp array. */
180 PERLVAR(Tregendp, I32 *) /* Ditto for endp. */
181 PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */
182 PERLVAR(Treglastcloseparen, U32 *) /* Similarly for lastcloseparen. */
183 PERLVAR(Tregtill, char *) /* How far we are required to go. */
184 PERLVAR(Treg_start_tmp, char **) /* from regexec.c */
185 PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */
186 PERLVAR(Tregdata, struct reg_data *)
187 /* from regexec.c renamed was data */
188 PERLVAR(Tbostr, char *) /* from regexec.c */
189 PERLVAR(Treg_flags, U32) /* from regexec.c */
190 PERLVAR(Treg_eval_set, I32) /* from regexec.c */
191 PERLVAR(Tregnarrate, I32) /* from regexec.c */
192 PERLVAR(Tregprogram, regnode *) /* from regexec.c */
193 PERLVARI(Tregindent, int, 0) /* from regexec.c */
194 PERLVAR(Tregcc, CURCUR *) /* from regexec.c */
195 PERLVAR(Treg_call_cc, struct re_cc_state *) /* from regexec.c */
196 PERLVAR(Treg_re, regexp *) /* from regexec.c */
197 PERLVAR(Treg_ganch, char *) /* position of \G */
198 PERLVAR(Treg_sv, SV *) /* what we match against */
199 PERLVAR(Treg_magic, MAGIC *) /* pos-magic of what we match */
200 PERLVAR(Treg_oldpos, I32) /* old pos of what we match */
201 PERLVARI(Treg_oldcurpm, PMOP*, NULL) /* curpm before match */
202 PERLVARI(Treg_curpm, PMOP*, NULL) /* curpm during match */
203 PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */
204 PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */
205 PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */
206 PERLVAR(Treg_leftiter, I32) /* wait until caching pos */
207 PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */
208 PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */
210 PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
211 /* Pointer to peephole optimizer */
212 PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp))
213 /* Pointer to REx compiler */
214 PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags))
215 /* Pointer to REx executer */
216 PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start))
217 /* Pointer to optimized REx executer */
218 PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string))
219 /* Pointer to optimized REx string */
220 PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree))
221 /* Pointer to REx free()er */
223 PERLVARI(Treginterp_cnt,int, 0) /* Whether `Regexp'
225 PERLVARI(Treg_starttry, char *, 0) /* -Dr: where regtry was called. */
226 PERLVARI(Twatchaddr, char **, 0)
227 PERLVAR(Twatchok, char *)
229 /* Note that the variables below are all explicitly referenced in the code
230 * as thr->whatever and therefore don't need the 'T' prefix. */
232 PERLVAR(Treg_match_utf8, bool) /* was what we matched against utf8 */