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[perl5.git] / thrdvar.h
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1/* thdrvar.h
2 *
1d325971 3 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others
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4 *
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.
7 *
8 */
9
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10/*
11=head1 Global Variables
12*/
13
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14/***********************************************/
15/* Global only to current thread */
16/***********************************************/
17
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18/* Don't forget to re-run embed.pl to propagate changes! */
19
cb68f92d 20/* The 'T' prefix is only needed for vars that need appropriate #defines
4d1ff10f 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.
23 *
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24 * When building without USE_5005THREADS, these variables will be truly global.
25 * When building without USE_5005THREADS but with MULTIPLICITY, these variables
14dd3ad8 26 * will be global per-interpreter. */
8b3be1d1 27
49f531da 28/* Important ones in the first cache line (if alignment is done right) */
d4cce5f1 29
cb68f92d 30PERLVAR(Tstack_sp, SV **) /* top of the stack */
49f531da 31#ifdef OP_IN_REGISTER
cb68f92d 32PERLVAR(Topsave, OP *)
49f531da 33#else
cb68f92d 34PERLVAR(Top, OP *) /* currently executing op */
49f531da 35#endif
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36PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */
37
38PERLVAR(Tstack_base, SV **)
39PERLVAR(Tstack_max, SV **)
40
41PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */
42PERLVAR(Tscopestack_ix, I32)
43PERLVAR(Tscopestack_max,I32)
49f531da 44
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45PERLVAR(Tsavestack, ANY *) /* items that need to be restored
46 when LEAVEing scopes we've ENTERed */
47PERLVAR(Tsavestack_ix, I32)
48PERLVAR(Tsavestack_max, I32)
49f531da 49
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50PERLVAR(Ttmps_stack, SV **) /* mortals we've made */
51PERLVARI(Ttmps_ix, I32, -1)
52PERLVARI(Ttmps_floor, I32, -1)
53PERLVAR(Ttmps_max, I32)
49f531da 54
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55PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */
56PERLVAR(Tmarkstack_ptr, I32 *)
57PERLVAR(Tmarkstack_max, I32 *)
49f531da 58
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59PERLVAR(TSv, SV *) /* used to hold temporary values */
60PERLVAR(TXpv, XPV *) /* used to hold temporary values */
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61
62/*
63=for apidoc Amn|STRLEN|PL_na
64
65A convenience variable which is typically used with C<SvPV> when one
66doesn't care about the length of the string. It is usually more efficient
67to either declare a local variable and use that instead or to use the
68C<SvPV_nolen> macro.
69
70=cut
71*/
72
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73PERLVAR(Tna, STRLEN) /* for use in SvPV when length is
74 Not Applicable */
49f531da 75
5c0ca799 76/* stat stuff */
cb68f92d 77PERLVAR(Tstatbuf, Stat_t)
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78PERLVAR(Tstatcache, Stat_t) /* _ */
79PERLVAR(Tstatgv, GV *)
a0714e2c 80PERLVARI(Tstatname, SV *, NULL)
5c0ca799 81
49f531da 82#ifdef HAS_TIMES
cb68f92d 83PERLVAR(Ttimesbuf, struct tms)
49f531da 84#endif
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85
86/* Fields used by magic variables such as $@, $/ and so on */
d4cce5f1 87PERLVAR(Ttainted, bool) /* using variables controlled by $< */
cb68f92d 88PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */
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89
90/*
2eb25c99 91=for apidoc mn|SV*|PL_rs
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92
93The input record separator - C<$/> in Perl space.
94
2eb25c99 95=for apidoc mn|GV*|PL_last_in_gv
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96
97The GV which was last used for a filehandle input operation. (C<< <FH> >>)
98
2eb25c99 99=for apidoc mn|SV*|PL_ofs_sv
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100
101The output field separator - C<$,> in Perl space.
102
103=cut
104*/
105
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106PERLVAR(Trs, SV *) /* input record separator $/ */
107PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */
7889fe52 108PERLVAR(Tofs_sv, SV *) /* output field separator $, */
cb68f92d 109PERLVAR(Tdefoutgv, GV *) /* default FH for output */
dd374669 110PERLVARI(Tchopset, const char *, " \n-") /* $: */
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111PERLVAR(Tformtarget, SV *)
112PERLVAR(Tbodytarget, SV *)
113PERLVAR(Ttoptarget, SV *)
49f531da 114
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115/* Stashes */
116PERLVAR(Tdefstash, HV *) /* main symbol table */
117PERLVAR(Tcurstash, HV *) /* symbol table for current package */
49f531da 118
cb68f92d 119PERLVAR(Trestartop, OP *) /* propagating an error from croak? */
3280af22 120PERLVARI(Tcurcop, COP * VOL, &PL_compiling)
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121PERLVAR(Tin_eval, VOL U8) /* trap "fatal" errors? */
122PERLVAR(Tdelaymagic, U16) /* ($<,$>) = ... */
24d3c518 123PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */
61bb5906 124PERLVAR(Tlocalizing, int) /* are we processing a local() list? */
49f531da 125
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126PERLVAR(Tcurstack, AV *) /* THE STACK */
127PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */
128PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */
312caa8e 129
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130PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */
131PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */
a0714e2c 132PERLVARI(Terrors, SV *, NULL) /* outstanding queued errors */
49f531da 133
4e4c362e 134/* statics "owned" by various functions */
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135PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */
136PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */
dd28f7bb 137PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
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138
139PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */
4e4c362e 140
5c0ca799 141PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */
3967c732 142PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */
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143
144/* sort stuff */
145PERLVAR(Tsortcop, OP *) /* user defined sort routine */
146PERLVAR(Tsortstash, HV *) /* which is in some package or other */
147PERLVAR(Tfirstgv, GV *) /* $a */
148PERLVAR(Tsecondgv, GV *) /* $b */
5c0ca799 149
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150/* float buffer */
151PERLVAR(Tefloatbuf, char*)
152PERLVAR(Tefloatsize, STRLEN)
153
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154/* regex stuff */
155
156PERLVAR(Tscreamfirst, I32 *)
157PERLVAR(Tscreamnext, I32 *)
158PERLVARI(Tmaxscream, I32, -1)
159PERLVAR(Tlastscream, SV *)
160
46ab3289 161PERLVAR(Treg_state, struct re_save_state)
5c0ca799 162PERLVAR(Tregdummy, regnode) /* from regcomp.c */
5c0ca799 163PERLVAR(Tcolorset, int) /* from regcomp.c */
51371543 164PERLVARA(Tcolors,6, char *) /* from regcomp.c */
5c0ca799 165
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166PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
167 /* Pointer to peephole optimizer */
0b94c7bb 168PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp))
f722798b 169 /* Pointer to REx compiler */
0b94c7bb 170PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags))
f722798b 171 /* Pointer to REx executer */
0b94c7bb 172PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start))
f722798b 173 /* Pointer to optimized REx executer */
0b94c7bb 174PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string))
f722798b 175 /* Pointer to optimized REx string */
0b94c7bb 176PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree))
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177 /* Pointer to REx free()er */
178
a0288114 179PERLVARI(Treginterp_cnt,int, 0) /* Whether "Regexp" was interpolated. */
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180PERLVARI(Twatchaddr, char **, 0)
181PERLVAR(Twatchok, char *)
d4cce5f1 182
8b3be1d1 183/* Note that the variables below are all explicitly referenced in the code
cb68f92d 184 * as thr->whatever and therefore don't need the 'T' prefix. */
8b3be1d1 185
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186/* the currently active slab in a chain of slabs of regmatch states,
187 * and the currently active state within that slab */
188
189PERLVARI(Tregmatch_slab, regmatch_slab *, NULL)
190PERLVAR(Tregmatch_state, regmatch_state *)