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920dae64 AT |
1 | /* thdrvar.h |
2 | * | |
3 | * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others | |
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 | ||
10 | /* | |
11 | =head1 Global Variables | |
12 | */ | |
13 | ||
14 | /***********************************************/ | |
15 | /* Global only to current thread */ | |
16 | /***********************************************/ | |
17 | ||
18 | /* Don't forget to re-run embed.pl to propagate changes! */ | |
19 | ||
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. | |
23 | * | |
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. */ | |
27 | ||
28 | /* Important ones in the first cache line (if alignment is done right) */ | |
29 | ||
30 | #ifdef USE_5005THREADS | |
31 | PERLVAR(interp, PerlInterpreter*) /* thread owner */ | |
32 | #endif | |
33 | ||
34 | PERLVAR(Tstack_sp, SV **) /* top of the stack */ | |
35 | #ifdef OP_IN_REGISTER | |
36 | PERLVAR(Topsave, OP *) | |
37 | #else | |
38 | PERLVAR(Top, OP *) /* currently executing op */ | |
39 | #endif | |
40 | PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */ | |
41 | ||
42 | PERLVAR(Tstack_base, SV **) | |
43 | PERLVAR(Tstack_max, SV **) | |
44 | ||
45 | PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */ | |
46 | PERLVAR(Tscopestack_ix, I32) | |
47 | PERLVAR(Tscopestack_max,I32) | |
48 | ||
49 | PERLVAR(Tsavestack, ANY *) /* items that need to be restored | |
50 | when LEAVEing scopes we've ENTERed */ | |
51 | PERLVAR(Tsavestack_ix, I32) | |
52 | PERLVAR(Tsavestack_max, I32) | |
53 | ||
54 | PERLVAR(Ttmps_stack, SV **) /* mortals we've made */ | |
55 | PERLVARI(Ttmps_ix, I32, -1) | |
56 | PERLVARI(Ttmps_floor, I32, -1) | |
57 | PERLVAR(Ttmps_max, I32) | |
58 | ||
59 | PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */ | |
60 | PERLVAR(Tmarkstack_ptr, I32 *) | |
61 | PERLVAR(Tmarkstack_max, I32 *) | |
62 | ||
63 | PERLVAR(Tretstack, OP **) /* OPs we have postponed executing */ | |
64 | PERLVAR(Tretstack_ix, I32) | |
65 | PERLVAR(Tretstack_max, I32) | |
66 | ||
67 | PERLVAR(TSv, SV *) /* used to hold temporary values */ | |
68 | PERLVAR(TXpv, XPV *) /* used to hold temporary values */ | |
69 | ||
70 | /* | |
71 | =for apidoc Amn|STRLEN|PL_na | |
72 | ||
73 | A convenience variable which is typically used with C<SvPV> when one | |
74 | doesn't care about the length of the string. It is usually more efficient | |
75 | to either declare a local variable and use that instead or to use the | |
76 | C<SvPV_nolen> macro. | |
77 | ||
78 | =cut | |
79 | */ | |
80 | ||
81 | PERLVAR(Tna, STRLEN) /* for use in SvPV when length is | |
82 | Not Applicable */ | |
83 | ||
84 | /* stat stuff */ | |
85 | PERLVAR(Tstatbuf, Stat_t) | |
86 | PERLVAR(Tstatcache, Stat_t) /* _ */ | |
87 | PERLVAR(Tstatgv, GV *) | |
88 | PERLVARI(Tstatname, SV *, Nullsv) | |
89 | ||
90 | #ifdef HAS_TIMES | |
91 | PERLVAR(Ttimesbuf, struct tms) | |
92 | #endif | |
93 | ||
94 | /* Fields used by magic variables such as $@, $/ and so on */ | |
95 | PERLVAR(Ttainted, bool) /* using variables controlled by $< */ | |
96 | PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */ | |
97 | PERLVAR(Tnrs, SV *) /* placeholder: unused since 5.8.0 (5.7.2 patch #12027 for bug ID 20010815.012) */ | |
98 | ||
99 | /* | |
100 | =for apidoc mn|SV*|PL_rs | |
101 | ||
102 | The input record separator - C<$/> in Perl space. | |
103 | ||
104 | =for apidoc mn|GV*|PL_last_in_gv | |
105 | ||
106 | The GV which was last used for a filehandle input operation. (C<< <FH> >>) | |
107 | ||
108 | =for apidoc mn|SV*|PL_ofs_sv | |
109 | ||
110 | The output field separator - C<$,> in Perl space. | |
111 | ||
112 | =cut | |
113 | */ | |
114 | ||
115 | PERLVAR(Trs, SV *) /* input record separator $/ */ | |
116 | PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */ | |
117 | PERLVAR(Tofs_sv, SV *) /* output field separator $, */ | |
118 | PERLVAR(Tdefoutgv, GV *) /* default FH for output */ | |
119 | PERLVARI(Tchopset, const char *, " \n-") /* $: */ | |
120 | PERLVAR(Tformtarget, SV *) | |
121 | PERLVAR(Tbodytarget, SV *) | |
122 | PERLVAR(Ttoptarget, SV *) | |
123 | ||
124 | /* Stashes */ | |
125 | PERLVAR(Tdefstash, HV *) /* main symbol table */ | |
126 | PERLVAR(Tcurstash, HV *) /* symbol table for current package */ | |
127 | ||
128 | PERLVAR(Trestartop, OP *) /* propagating an error from croak? */ | |
129 | PERLVARI(Tcurcop, COP * VOL, &PL_compiling) | |
130 | PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */ | |
131 | PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */ | |
132 | PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */ | |
133 | PERLVAR(Tlocalizing, int) /* are we processing a local() list? */ | |
134 | ||
135 | PERLVAR(Tcurstack, AV *) /* THE STACK */ | |
136 | PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */ | |
137 | PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */ | |
138 | ||
139 | PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */ | |
140 | PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */ | |
141 | #ifdef PERL_FLEXIBLE_EXCEPTIONS | |
142 | PERLVARI(Tprotect, protect_proc_t, MEMBER_TO_FPTR(Perl_default_protect)) | |
143 | #endif | |
144 | PERLVARI(Terrors, SV *, Nullsv) /* outstanding queued errors */ | |
145 | ||
146 | /* statics "owned" by various functions */ | |
147 | PERLVAR(Tav_fetch_sv, SV *) /* unused as of change #19268 */ | |
148 | PERLVAR(Thv_fetch_sv, SV *) /* unused as of change #19268 */ | |
149 | PERLVAR(Thv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */ | |
150 | ||
151 | PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */ | |
152 | ||
153 | PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */ | |
154 | PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */ | |
155 | ||
156 | /* sort stuff */ | |
157 | PERLVAR(Tsortcop, OP *) /* user defined sort routine */ | |
158 | PERLVAR(Tsortstash, HV *) /* which is in some package or other */ | |
159 | PERLVAR(Tfirstgv, GV *) /* $a */ | |
160 | PERLVAR(Tsecondgv, GV *) /* $b */ | |
161 | PERLVAR(Tsortcxix, I32) /* from pp_ctl.c */ | |
162 | ||
163 | /* float buffer */ | |
164 | PERLVAR(Tefloatbuf, char*) | |
165 | PERLVAR(Tefloatsize, STRLEN) | |
166 | ||
167 | /* regex stuff */ | |
168 | ||
169 | PERLVAR(Tscreamfirst, I32 *) | |
170 | PERLVAR(Tscreamnext, I32 *) | |
171 | PERLVARI(Tmaxscream, I32, -1) | |
172 | PERLVAR(Tlastscream, SV *) | |
173 | ||
174 | PERLVAR(Tregdummy, regnode) /* from regcomp.c */ | |
175 | PERLVAR(Tregcomp_parse, char*) /* Input-scan pointer. */ | |
176 | PERLVAR(Tregxend, char*) /* End of input for compile */ | |
177 | PERLVAR(Tregcode, regnode*) /* Code-emit pointer; ®dummy = don't */ | |
178 | PERLVAR(Tregnaughty, I32) /* How bad is this pattern? */ | |
179 | PERLVAR(Tregsawback, I32) /* Did we see \1, ...? */ | |
180 | PERLVAR(Tregprecomp, char *) /* uncompiled string. */ | |
181 | PERLVAR(Tregnpar, I32) /* () count. */ | |
182 | PERLVAR(Tregsize, I32) /* Code size. */ | |
183 | PERLVAR(Tregflags, U32) /* are we folding, multilining? */ | |
184 | PERLVAR(Tregseen, U32) /* from regcomp.c */ | |
185 | PERLVAR(Tseen_zerolen, I32) /* from regcomp.c */ | |
186 | PERLVAR(Tseen_evals, I32) /* from regcomp.c */ | |
187 | PERLVAR(Tregcomp_rx, regexp *) /* from regcomp.c */ | |
188 | PERLVAR(Textralen, I32) /* from regcomp.c */ | |
189 | PERLVAR(Tcolorset, int) /* from regcomp.c */ | |
190 | PERLVARA(Tcolors,6, char *) /* from regcomp.c */ | |
191 | PERLVAR(Treg_whilem_seen, I32) /* number of WHILEM in this expr */ | |
192 | PERLVAR(Treginput, char *) /* String-input pointer. */ | |
193 | PERLVAR(Tregbol, char *) /* Beginning of input, for ^ check. */ | |
194 | PERLVAR(Tregeol, char *) /* End of input, for $ check. */ | |
195 | PERLVAR(Tregstartp, I32 *) /* Pointer to startp array. */ | |
196 | PERLVAR(Tregendp, I32 *) /* Ditto for endp. */ | |
197 | PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */ | |
198 | PERLVAR(Treglastcloseparen, U32 *) /* Similarly for lastcloseparen. */ | |
199 | PERLVAR(Tregtill, char *) /* How far we are required to go. */ | |
200 | PERLVAR(Tregcompat1, char) /* used to be regprev1 */ | |
201 | PERLVAR(Treg_start_tmp, char **) /* from regexec.c */ | |
202 | PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */ | |
203 | PERLVAR(Tregdata, struct reg_data *) | |
204 | /* from regexec.c renamed was data */ | |
205 | PERLVAR(Tbostr, char *) /* from regexec.c */ | |
206 | PERLVAR(Treg_flags, U32) /* from regexec.c */ | |
207 | PERLVAR(Treg_eval_set, I32) /* from regexec.c */ | |
208 | PERLVAR(Tregnarrate, I32) /* from regexec.c */ | |
209 | PERLVAR(Tregprogram, regnode *) /* from regexec.c */ | |
210 | PERLVARI(Tregindent, int, 0) /* from regexec.c */ | |
211 | PERLVAR(Tregcc, CURCUR *) /* from regexec.c */ | |
212 | PERLVAR(Treg_call_cc, struct re_cc_state *) /* from regexec.c */ | |
213 | PERLVAR(Treg_re, regexp *) /* from regexec.c */ | |
214 | PERLVAR(Treg_ganch, char *) /* position of \G */ | |
215 | PERLVAR(Treg_sv, SV *) /* what we match against */ | |
216 | PERLVAR(Treg_magic, MAGIC *) /* pos-magic of what we match */ | |
217 | PERLVAR(Treg_oldpos, I32) /* old pos of what we match */ | |
218 | PERLVARI(Treg_oldcurpm, PMOP*, NULL) /* curpm before match */ | |
219 | PERLVARI(Treg_curpm, PMOP*, NULL) /* curpm during match */ | |
220 | PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */ | |
221 | PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */ | |
222 | PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */ | |
223 | PERLVAR(Treg_leftiter, I32) /* wait until caching pos */ | |
224 | PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */ | |
225 | PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */ | |
226 | ||
227 | PERLVARI(Tpeepp, peep_t, MEMBER_TO_FPTR(Perl_peep)) | |
228 | /* Pointer to peephole optimizer */ | |
229 | PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp)) | |
230 | /* Pointer to REx compiler */ | |
231 | PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags)) | |
232 | /* Pointer to REx executer */ | |
233 | PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start)) | |
234 | /* Pointer to optimized REx executer */ | |
235 | PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string)) | |
236 | /* Pointer to optimized REx string */ | |
237 | PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree)) | |
238 | /* Pointer to REx free()er */ | |
239 | ||
240 | PERLVARI(Treginterp_cnt,int, 0) /* Whether "Regexp" was interpolated. */ | |
241 | PERLVARI(Treg_starttry, char *, 0) /* -Dr: where regtry was called. */ | |
242 | PERLVARI(Twatchaddr, char **, 0) | |
243 | PERLVAR(Twatchok, char *) | |
244 | ||
245 | /* Note that the variables below are all explicitly referenced in the code | |
246 | * as thr->whatever and therefore don't need the 'T' prefix. */ | |
247 | ||
248 | #ifdef USE_5005THREADS | |
249 | ||
250 | PERLVAR(oursv, SV *) | |
251 | PERLVAR(cvcache, HV *) | |
252 | PERLVAR(self, perl_os_thread) /* Underlying thread object */ | |
253 | PERLVAR(flags, U32) | |
254 | PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */ | |
255 | PERLVAR(threadsvp, SV **) /* AvARRAY(threadsv) */ | |
256 | PERLVAR(specific, AV *) /* Thread-specific user data */ | |
257 | PERLVAR(errsv, SV *) /* Backing SV for $@ */ | |
258 | PERLVAR(mutex, perl_mutex) /* For the fields others can change */ | |
259 | PERLVAR(tid, U32) | |
260 | PERLVAR(prev, struct perl_thread *) | |
261 | PERLVAR(next, struct perl_thread *) | |
262 | /* Circular linked list of threads */ | |
263 | ||
264 | #ifdef HAVE_THREAD_INTERN | |
265 | PERLVAR(i, struct thread_intern) | |
266 | /* Platform-dependent internals */ | |
267 | #endif | |
268 | ||
269 | PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */ | |
270 | PERLVAR(thr_done, bool) /* True when the thread has finished */ | |
271 | ||
272 | #endif /* USE_5005THREADS */ | |
273 | ||
274 | PERLVAR(Treg_match_utf8, bool) /* was what we matched against utf8 */ | |
275 | ||
276 | PERLVAR(Tcomppad, AV *) /* storage for lexically scoped temporaries */ | |
277 |