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907b3e2 delete thrdvar.h and move its contents to intrpvar.h
Dave Mitchell authored
1 /* intrpvar.h
2 *
3 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
1129b88 Update copyright years.
Nicholas Clark authored
4 * 2006, 2007, 2008 by Larry Wall and others
907b3e2 delete thrdvar.h and move its contents to intrpvar.h
Dave Mitchell authored
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
10
11 /*
12 =head1 Per-Interpreter Variables
13 */
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14
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15 /* These variables are per-interpreter in threaded/multiplicity builds,
16 * global otherwise.
17
18 * Don't forget to re-run embed.pl to propagate changes! */
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19
6537fe7 @schwern -t taint warnings
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20 /* New variables must be added to the very end for binary compatibility.
21 * XSUB.h provides wrapper functions via perlapi.h that make this
22 * irrelevant, but not all code may be expected to #include XSUB.h. */
23
02506ef @jhi Add reminders to intrpvar.h about perl_clone(), as suggested by Stas.
jhi authored
24 /* Don't forget to add your variable also to perl_clone()! */
25
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26 /* The 'I' prefix is only needed for vars that need appropriate #defines
27 * generated when built with or without MULTIPLICITY. It is also used
28 * to generate the appropriate export list for win32.
29 *
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30 * When building without MULTIPLICITY, these variables will be truly global.
31 *
32 * Important ones in the first cache line (if alignment is done right) */
33
34 PERLVAR(Istack_sp, SV **) /* top of the stack */
35 #ifdef OP_IN_REGISTER
36 PERLVAR(Iopsave, OP *)
37 #else
38 PERLVAR(Iop, OP *) /* currently executing op */
39 #endif
40 PERLVAR(Icurpad, SV **) /* active pad (lexicals+tmps) */
41
42 PERLVAR(Istack_base, SV **)
43 PERLVAR(Istack_max, SV **)
44
45 PERLVAR(Iscopestack, I32 *) /* scopes we've ENTERed */
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46 /* name of the scopes we've ENTERed. Only used with -DDEBUGGING, but needs to be
47 present always, as -DDEUBGGING must be binary compatible with non. */
48 PERLVARI(Iscopestack_name, const char * *, NULL)
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49 PERLVAR(Iscopestack_ix, I32)
50 PERLVAR(Iscopestack_max,I32)
51
52 PERLVAR(Isavestack, ANY *) /* items that need to be restored when
53 LEAVEing scopes we've ENTERed */
54 PERLVAR(Isavestack_ix, I32)
55 PERLVAR(Isavestack_max, I32)
56
57 PERLVAR(Itmps_stack, SV **) /* mortals we've made */
58 PERLVARI(Itmps_ix, I32, -1)
59 PERLVARI(Itmps_floor, I32, -1)
60 PERLVAR(Itmps_max, I32)
61 PERLVAR(Imodcount, I32) /* how much mod()ification in
62 assignment? */
63
64 PERLVAR(Imarkstack, I32 *) /* stack_sp locations we're
65 remembering */
66 PERLVAR(Imarkstack_ptr, I32 *)
67 PERLVAR(Imarkstack_max, I32 *)
68
69 PERLVAR(ISv, SV *) /* used to hold temporary values */
70 PERLVAR(IXpv, XPV *) /* used to hold temporary values */
71
72 /*
73 =for apidoc Amn|STRLEN|PL_na
74
75 A convenience variable which is typically used with C<SvPV> when one
76 doesn't care about the length of the string. It is usually more efficient
77 to either declare a local variable and use that instead or to use the
78 C<SvPV_nolen> macro.
79
80 =cut
81 */
82
83 PERLVAR(Ina, STRLEN) /* for use in SvPV when length is
84 Not Applicable */
85
86 /* stat stuff */
87 PERLVAR(Istatbuf, Stat_t)
88 PERLVAR(Istatcache, Stat_t) /* _ */
89 PERLVAR(Istatgv, GV *)
90 PERLVARI(Istatname, SV *, NULL)
91
92 #ifdef HAS_TIMES
93 PERLVAR(Itimesbuf, struct tms)
94 #endif
95
96 /* Fields used by magic variables such as $@, $/ and so on */
97 PERLVAR(Icurpm, PMOP *) /* what to do \ interps in REs from */
98
99 /*
100 =for apidoc mn|SV*|PL_rs
101
102 The input record separator - C<$/> 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
e23d9e2 @chipdude [perl #948] [PATCH] Allow tied $,
chipdude authored
108 =for apidoc mn|GV*|PL_ofsgv
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109
e23d9e2 @chipdude [perl #948] [PATCH] Allow tied $,
chipdude authored
110 The glob containing the output field separator - C<*,> in Perl space.
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111
112 =cut
113 */
114
115 PERLVAR(Irs, SV *) /* input record separator $/ */
116 PERLVAR(Ilast_in_gv, GV *) /* GV used in last <FH> */
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117 PERLVAR(Iofsgv, GV *) /* GV of output field separator *, */
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118 PERLVAR(Idefoutgv, GV *) /* default FH for output */
119 PERLVARI(Ichopset, const char *, " \n-") /* $: */
120 PERLVAR(Iformtarget, SV *)
121 PERLVAR(Ibodytarget, SV *)
122 PERLVAR(Itoptarget, SV *)
123
124 /* Stashes */
125 PERLVAR(Idefstash, HV *) /* main symbol table */
126 PERLVAR(Icurstash, HV *) /* symbol table for current package */
127
128 PERLVAR(Irestartop, OP *) /* propagating an error from croak? */
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129 PERLVAR(Irestartjmpenv, JMPENV *) /* target frame for longjmp in die */
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130 PERLVAR(Icurcop, COP *)
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131 PERLVAR(Icurstack, AV *) /* THE STACK */
132 PERLVAR(Icurstackinfo, PERL_SI *) /* current stack + context */
133 PERLVAR(Imainstack, AV *) /* the stack when nothing funny is
134 happening */
135
136 PERLVAR(Itop_env, JMPENV *) /* ptr to current sigjmp environment */
137 PERLVAR(Istart_env, JMPENV) /* empty startup sigjmp environment */
138 PERLVARI(Ierrors, SV *, NULL) /* outstanding queued errors */
139
140 /* statics "owned" by various functions */
141 PERLVAR(Ihv_fetch_ent_mh, HE*) /* owned by hv_fetch_ent() */
142
143 PERLVAR(Ilastgotoprobe, OP*) /* from pp_ctl.c */
144
145 /* sort stuff */
146 PERLVAR(Isortcop, OP *) /* user defined sort routine */
147 PERLVAR(Isortstash, HV *) /* which is in some package or other */
148 PERLVAR(Ifirstgv, GV *) /* $a */
149 PERLVAR(Isecondgv, GV *) /* $b */
150
151 /* float buffer */
152 PERLVAR(Iefloatbuf, char *)
153 PERLVAR(Iefloatsize, STRLEN)
154
155 /* regex stuff */
156
157 PERLVAR(Iscreamfirst, I32 *)
158 PERLVAR(Iscreamnext, I32 *)
159 PERLVAR(Ilastscream, SV *)
160
161 PERLVAR(Ireg_state, struct re_save_state)
162
163 PERLVAR(Iregdummy, regnode) /* from regcomp.c */
164
165 PERLVARI(Idumpindent, U16, 4) /* number of blanks per dump
166 indentation level */
167
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168
169 PERLVAR(Iutf8locale, bool) /* utf8 locale detected */
170 PERLVARI(Irehash_seed_set, bool, FALSE) /* 582 hash initialized? */
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171
172 PERLVARA(Icolors,6, char *) /* from regcomp.c */
173
174 PERLVARI(Ipeepp, peep_t, MEMBER_TO_FPTR(Perl_peep))
175 /* Pointer to peephole optimizer */
176
2f17531 @vpit Document PL_opfreehook
vpit authored
177 /*
178 =for apidoc Amn|Perl_ophook_t|PL_opfreehook
179
180 When non-C<NULL>, the function pointed by this variable will be called each time an OP is freed with the corresponding OP as the argument.
181 This allows extensions to free any extra attribute they have locally attached to an OP.
182 It is also assured to first fire for the parent OP and then for its kids.
183
184 When you replace this variable, it is considered a good practice to store the possibly previously installed hook and that you recall it inside your own.
185
186 =cut
187 */
188
799dfa8 @vpit The op_free() hook doesn't need to return an OP*, so introduce a new …
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189 PERLVARI(Iopfreehook, Perl_ophook_t, 0) /* op_free() hook */
f37b8c3 @vpit Add a pluggable hook in op_free()
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190
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191 PERLVARI(Imaxscream, I32, -1)
192 PERLVARI(Ireginterp_cnt,I32, 0) /* Whether "Regexp" was interpolated. */
193 PERLVARI(Iwatchaddr, char **, 0)
194 PERLVAR(Iwatchok, char *)
195
196 /* the currently active slab in a chain of slabs of regmatch states,
197 * and the currently active state within that slab */
198
199 PERLVARI(Iregmatch_slab, regmatch_slab *, NULL)
200 PERLVAR(Iregmatch_state, regmatch_state *)
201
202 /* Put anything new that is pointer aligned here. */
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203
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204 PERLVAR(Idelaymagic, U16) /* ($<,$>) = ... */
205 PERLVAR(Ilocalizing, U8) /* are we processing a local() list? */
206 PERLVAR(Icolorset, bool) /* from regcomp.c */
207 PERLVARI(Idirty, bool, FALSE) /* in the middle of tearing things
208 down? */
910e067 As best as I (and my minion, gcc -Os) can tell, PL_curcop and
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209 PERLVAR(Iin_eval, U8) /* trap "fatal" errors? */
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210 PERLVAR(Itainted, bool) /* using variables controlled by $< */
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211
212 /* This value may be set when embedding for full cleanup */
213 /* 0=none, 1=full, 2=full with checks */
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214 /* mod_perl is special, and also assigns a meaning -1 */
215 PERLVARI(Iperl_destruct_level, signed char, 0)
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216
217 PERLVAR(Iperldb, U32)
218
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219 /* pseudo environmental stuff */
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220 PERLVAR(Iorigargc, int)
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221 PERLVAR(Iorigargv, char **)
222 PERLVAR(Ienvgv, GV *)
223 PERLVAR(Iincgv, GV *)
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224 PERLVAR(Ihintgv, GV *)
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225 PERLVAR(Iorigfilename, char *)
226 PERLVAR(Idiehook, SV *)
227 PERLVAR(Iwarnhook, SV *)
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228
229 /* switches */
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230 PERLVAR(Ipatchlevel, SV *)
27da23d @jhi Symbian port of Perl
jhi authored
231 PERLVAR(Ilocalpatches, const char * const *)
dd37466 @petdance Consting five
petdance authored
232 PERLVARI(Isplitstr, const char *, " ")
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233
234 PERLVAR(Iminus_c, bool)
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235 PERLVAR(Iminus_n, bool)
236 PERLVAR(Iminus_p, bool)
237 PERLVAR(Iminus_l, bool)
238 PERLVAR(Iminus_a, bool)
239 PERLVAR(Iminus_F, bool)
240 PERLVAR(Idoswitches, bool)
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241 PERLVAR(Iminus_E, bool)
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242
243 /*
ccfc67b @jhi Missed the =head1 additions.
jhi authored
244
2eb25c9 @jhi Integrate changes #8608,8609,8610,8611,8612,8613 from maintperl.
jhi authored
245 =for apidoc mn|bool|PL_dowarn
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246
247 The C variable which corresponds to Perl's $^W warning variable.
248
249 =cut
250 */
251
d41ff1b introduce $^U, a global bit to indicate whether system
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252 PERLVAR(Idowarn, U8)
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253 PERLVAR(Idoextract, bool)
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254 PERLVAR(Isawampersand, bool) /* must save all match strings */
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255 PERLVAR(Iunsafe, bool)
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256 PERLVAR(Iexit_flags, U8) /* was exit() unexpected, etc. */
257 PERLVAR(Isrand_called, bool)
258 /* Part of internal state, but makes the 16th 1 byte variable in a row. */
259 PERLVAR(Itainting, bool) /* doing taint checks */
9688998 Note the U8 sized space created by removing -P, and check that it is
Nicholas Clark authored
260 /* Space for a U8 */
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261 PERLVAR(Iinplace, char *)
262 PERLVAR(Ie_script, SV *)
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263
264 /* magical thingies */
265 PERLVAR(Ibasetime, Time_t) /* $^T */
266 PERLVAR(Iformfeed, SV *) /* $^L */
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267
268
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269 PERLVARI(Imaxsysfd, I32, MAXSYSFD)
270 /* top fd to pass to subprocesses */
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271 PERLVAR(Istatusvalue, I32) /* $? */
272 #ifdef VMS
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273 PERLVAR(Istatusvalue_vms,U32)
e5218da @gisle Well defined $? and introduction of ${^CHILD_ERROR_NATIVE} [PATCH]
gisle authored
274 #else
275 PERLVAR(Istatusvalue_posix,I32)
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276 #endif
277
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278 PERLVARI(Isig_pending, int,0) /* Number if highest signal pending */
279 PERLVAR(Ipsig_pend, int *) /* per-signal "count" of pending */
280
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281 /* shortcuts to various I/O objects */
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282 PERLVAR(Istdingv, GV *)
bf49b05 make die/warn and other diagnostics go to wherever STDERR happens
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283 PERLVAR(Istderrgv, GV *)
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284 PERLVAR(Idefgv, GV *)
285 PERLVAR(Iargvgv, GV *)
286 PERLVAR(Iargvoutgv, GV *)
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287 PERLVAR(Iargvout_stack, AV *)
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288
289 /* shortcuts to regexp stuff */
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290 PERLVAR(Ireplgv, GV *)
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291
292 /* shortcuts to misc objects */
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293 PERLVAR(Ierrgv, GV *)
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294
295 /* shortcuts to debugging objects */
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296 PERLVAR(IDBgv, GV *)
297 PERLVAR(IDBline, GV *)
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298
299 /*
2eb25c9 @jhi Integrate changes #8608,8609,8610,8611,8612,8613 from maintperl.
jhi authored
300 =for apidoc mn|GV *|PL_DBsub
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Gurusamy Sarathy authored
301 When Perl is run in debugging mode, with the B<-d> switch, this GV contains
302 the SV which holds the name of the sub being debugged. This is the C
303 variable which corresponds to Perl's $DB::sub variable. See
304 C<PL_DBsingle>.
305
2eb25c9 @jhi Integrate changes #8608,8609,8610,8611,8612,8613 from maintperl.
jhi authored
306 =for apidoc mn|SV *|PL_DBsingle
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Gurusamy Sarathy authored
307 When Perl is run in debugging mode, with the B<-d> switch, this SV is a
7889fe5 UTF8 output prework.
Nick Ing-Simmons authored
308 boolean which indicates whether subs are being single-stepped.
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309 Single-stepping is automatically turned on after every step. This is the C
310 variable which corresponds to Perl's $DB::single variable. See
311 C<PL_DBsub>.
312
2eb25c9 @jhi Integrate changes #8608,8609,8610,8611,8612,8613 from maintperl.
jhi authored
313 =for apidoc mn|SV *|PL_DBtrace
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Gurusamy Sarathy authored
314 Trace variable used when Perl is run in debugging mode, with the B<-d>
315 switch. This is the C variable which corresponds to Perl's $DB::trace
316 variable. See C<PL_DBsingle>.
317
318 =cut
319 */
320
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321 PERLVAR(IDBsub, GV *)
322 PERLVAR(IDBsingle, SV *)
323 PERLVAR(IDBtrace, SV *)
324 PERLVAR(IDBsignal, SV *)
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325 PERLVAR(Idbargs, AV *) /* args to call listed by caller function */
326
327 /* symbol tables */
328 PERLVAR(Idebstash, HV *) /* symbol table for perldb package */
329 PERLVAR(Iglobalstash, HV *) /* global keyword overrides imported here */
330 PERLVAR(Icurstname, SV *) /* name of current package */
331 PERLVAR(Ibeginav, AV *) /* names of BEGIN subroutines */
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332 PERLVAR(Iendav, AV *) /* names of END subroutines */
3c10abe stab at UNITCHECK blocks
Alexander Gough authored
333 PERLVAR(Iunitcheckav, AV *) /* names of UNITCHECK subroutines */
7d30b5c s/STOP/CHECK/ blocks
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334 PERLVAR(Icheckav, AV *) /* names of CHECK subroutines */
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335 PERLVAR(Iinitav, AV *) /* names of INIT subroutines */
336 PERLVAR(Istrtab, HV *) /* shared string table */
005a453 add more correct version of change#1350 (as yet untested)
Joshua Pritikin authored
337 PERLVARI(Isub_generation,U32,1) /* incr to invalidate method cache */
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338
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339 /* funky return mechanisms */
340 PERLVAR(Iforkprocess, int) /* so do_open |- can return proc# */
341
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342 /* memory management */
343 PERLVAR(Isv_count, I32) /* how many SV* are currently allocated */
344 PERLVAR(Isv_objcount, I32) /* how many objects are currently allocated */
345 PERLVAR(Isv_root, SV*) /* storage for SVs belonging to interp */
346 PERLVAR(Isv_arenaroot, SV*) /* list of areas for garbage collection */
347
348 /* subprocess state */
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349 PERLVAR(Ifdpid, AV *) /* keep fd-to-pid mappings for my_popen */
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350
351 /* internal state */
352 PERLVARI(Iop_mask, char *, NULL) /* masked operations for safe evals */
353
354 /* current interpreter roots */
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355 PERLVAR(Imain_cv, CV *)
356 PERLVAR(Imain_root, OP *)
357 PERLVAR(Imain_start, OP *)
358 PERLVAR(Ieval_root, OP *)
359 PERLVAR(Ieval_start, OP *)
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360
361 /* runtime control stuff */
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362 PERLVARI(Icurcopdb, COP *, NULL)
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363
364 PERLVAR(Ifilemode, int) /* so nextargv() can preserve mode */
365 PERLVAR(Ilastfd, int) /* what to preserve mode on */
366 PERLVAR(Ioldname, char *) /* what to preserve mode on */
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367 PERLVAR(IArgv, const char **) /* stuff to free from do_aexec, vfork safe */
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368 PERLVAR(ICmd, char *) /* stuff to free from do_aexec, vfork safe */
00accf8 Note the gotcha about newlines in the elements of PL_preambleav.
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369 /* Elements in this array have ';' appended and are injected as a single line
370 into the tokeniser. You can't put any (literal) newlines into any program
371 you stuff in into this array, as the point where it's injected is expecting
372 a single physical line. */
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373 PERLVAR(Ipreambleav, AV *)
374 PERLVAR(Imess_sv, SV *)
7889fe5 UTF8 output prework.
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375 PERLVAR(Iors_sv, SV *) /* output record separator $\ */
71eebe1 Shuffling PL_gensym saves 8 bytes on LP64 systems.
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376 /* statics moved here for shared library purposes */
377 PERLVARI(Igensym, I32, 0) /* next symbol for getsym() to define */
a4021b7 PERL_IMPLICIT_CONTEXT is usually defined for threads, so assume that
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378 PERLVARI(Icv_has_eval, bool, FALSE) /* PL_compcv includes an entereval or similar */
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379 PERLVAR(Itaint_warn, bool) /* taint warns instead of dying */
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380 PERLVARI(Ilaststype, U16, OP_STAT)
381 PERLVARI(Ilaststatval, int, -1)
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382
4b556e6 @jandubois [win32] hand-applied patch along with small tweaks
jandubois authored
383 /* interpreter atexit processing */
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384 PERLVARI(Iexitlistlen, I32, 0) /* length of same */
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385 PERLVARI(Iexitlist, PerlExitListEntry *, NULL)
386 /* list of exit functions */
954c199 autogenerate API listing from comments in the source (from Benjamin
Gurusamy Sarathy authored
387
388 /*
389 =for apidoc Amn|HV*|PL_modglobal
390
7889fe5 UTF8 output prework.
Nick Ing-Simmons authored
391 C<PL_modglobal> is a general purpose, interpreter global HV for use by
954c199 autogenerate API listing from comments in the source (from Benjamin
Gurusamy Sarathy authored
392 extensions that need to keep information on a per-interpreter basis.
7889fe5 UTF8 output prework.
Nick Ing-Simmons authored
393 In a pinch, it can also be used as a symbol table for extensions
394 to share data among each other. It is a good idea to use keys
954c199 autogenerate API listing from comments in the source (from Benjamin
Gurusamy Sarathy authored
395 prefixed by the package name of the extension that owns the data.
396
397 =cut
398 */
399
cb68f92 partial MULTIPLICITY cleanup
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400 PERLVAR(Imodglobal, HV *) /* per-interp module data */
401
402 /* these used to be in global before 5.004_68 */
403 PERLVARI(Iprofiledata, U32 *, NULL) /* table of ops, counts */
404
405 PERLVAR(Icompiling, COP) /* compiling/done executing marker */
406
407 PERLVAR(Icompcv, CV *) /* currently compiling subroutine */
408 PERLVAR(Icomppad, AV *) /* storage for lexically scoped temporaries */
409 PERLVAR(Icomppad_name, AV *) /* variable names for "my" variables */
410 PERLVAR(Icomppad_name_fill, I32) /* last "introduced" variable offset */
411 PERLVAR(Icomppad_name_floor, I32) /* start of vars in innermost block */
4b556e6 @jandubois [win32] hand-applied patch along with small tweaks
jandubois authored
412
413 #ifdef HAVE_INTERP_INTERN
cb68f92 partial MULTIPLICITY cleanup
Gurusamy Sarathy authored
414 PERLVAR(Isys_intern, struct interp_intern)
415 /* platform internals */
4b556e6 @jandubois [win32] hand-applied patch along with small tweaks
jandubois authored
416 #endif
417
7fae4e6 [asperl] added AS patch#5 (patch #4 was intentionally skipped after
Gurusamy Sarathy authored
418 /* more statics moved here */
419 PERLVAR(IDBcv, CV *) /* from perl.c */
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
420 PERLVARI(Igeneration, int, 100) /* from op.c */
5695360 add patch for C<use re 'debug'>
Ilya Zakharevich authored
421
cb68f92 partial MULTIPLICITY cleanup
Gurusamy Sarathy authored
422 PERLVARI(Iin_clean_objs,bool, FALSE) /* from sv.c */
423 PERLVARI(Iin_clean_all, bool, FALSE) /* from sv.c */
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
424 PERLVAR(Inomemok, bool) /* let malloc context handle nomem */
425 PERLVARI(Isavebegin, bool, FALSE) /* save BEGINs for compiler */
7fae4e6 [asperl] added AS patch#5 (patch #4 was intentionally skipped after
Gurusamy Sarathy authored
426
d8eceb8 @jhi Gratuitous uid and gid casts to I32s and ints removed.
jhi authored
427 PERLVAR(Iuid, Uid_t) /* current real user id */
428 PERLVAR(Ieuid, Uid_t) /* current effective user id */
429 PERLVAR(Igid, Gid_t) /* current real group id */
430 PERLVAR(Iegid, Gid_t) /* current effective group id */
bf9cdc6 embedding perl
Radu Greab authored
431 PERLVARI(Ian, U32, 0) /* malloc sequence number */
432 PERLVARI(Icop_seqmax, U32, 0) /* statement sequence number */
433 PERLVARI(Ievalseq, U32, 0) /* eval sequence number */
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
434 PERLVAR(Iorigalen, U32)
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
435 PERLVAR(Iorigenviron, char **)
ca0c25f Most platforms don't actually need PL_pidstatus, or the associated
Nicholas Clark authored
436 #ifdef PERL_USES_PL_PIDSTATUS
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
437 PERLVAR(Ipidstatus, HV *) /* pid-to-status mappings for waitpid */
ca0c25f Most platforms don't actually need PL_pidstatus, or the associated
Nicholas Clark authored
438 #endif
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
439 PERLVAR(Iosname, char *) /* operating system */
5c728af Integrate:
Ilya Zakharevich authored
440
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
441 PERLVAR(Isighandlerp, Sighandler_t)
442
232d1c1 Steal code from maint, and use PERL_ARENA_ROOTS_SIZE to size the arena
Nicholas Clark authored
443 PERLVARA(Ibody_roots, PERL_ARENA_ROOTS_SIZE, void*) /* array of body roots */
93e68bf Re: eliminate discreet arenaroots
Jim Cromie authored
444
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
445 PERLVAR(Inice_chunk, char *) /* a nice chunk of memory to reuse */
446 PERLVAR(Inice_chunk_size, U32) /* how nice the chunk of memory is */
447
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
448 PERLVARI(Imaxo, int, MAXO) /* maximum number of ops */
449
0b94c7b fixups for sundry warnings about function pointers
Gurusamy Sarathy authored
450 PERLVARI(Irunops, runops_proc_t, MEMBER_TO_FPTR(RUNOPS_DEFAULT))
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
451
954c199 autogenerate API listing from comments in the source (from Benjamin
Gurusamy Sarathy authored
452 /*
453 =for apidoc Amn|SV|PL_sv_undef
454 This is the C<undef> SV. Always refer to this as C<&PL_sv_undef>.
455
456 =for apidoc Amn|SV|PL_sv_no
457 This is the C<false> SV. See C<PL_sv_yes>. Always refer to this as
458 C<&PL_sv_no>.
459
460 =for apidoc Amn|SV|PL_sv_yes
461 This is the C<true> SV. See C<PL_sv_no>. Always refer to this as
462 C<&PL_sv_yes>.
463
464 =cut
465 */
466
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
467 PERLVAR(Isv_undef, SV)
468 PERLVAR(Isv_no, SV)
469 PERLVAR(Isv_yes, SV)
470
471 PERLVAR(Isubname, SV *) /* name of current subroutine */
472
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
473 PERLVAR(Isubline, I32) /* line this subroutine began on */
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
474 PERLVAR(Imin_intro_pending, I32) /* start of vars to introduce */
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
475
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
476 PERLVAR(Imax_intro_pending, I32) /* end of vars to introduce */
477 PERLVAR(Ipadix, I32) /* max used index in current "register" pad */
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
478
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
479 PERLVAR(Ipadix_floor, I32) /* how low may inner block reset padix */
480
1d7c184 integrate mainline changes
Gurusamy Sarathy authored
481 PERLVAR(Ihints, U32) /* pragma-tic compile-time flags */
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
482
483 PERLVAR(Idebug, VOL U32) /* flags given to -D switch */
484
f0cb02e The vestigial PL_pad_reset_pending can actually be bool, rather than
Nicholas Clark authored
485 /* Perl_Ibreakable_sub_generation_ptr was too long for VMS, hence "gen" */
486 PERLVARI(Ibreakable_sub_gen, U32, 0)
487
bf9cdc6 embedding perl
Radu Greab authored
488 PERLVARI(Iamagic_generation, long, 0)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
489
490 #ifdef USE_LOCALE_COLLATE
491 PERLVAR(Icollation_name,char *) /* Name of current collation */
492 PERLVAR(Icollxfrm_base, Size_t) /* Basic overhead in *xfrm() */
493 PERLVARI(Icollxfrm_mult,Size_t, 2) /* Expansion factor in *xfrm() */
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
494 PERLVARI(Icollation_ix, U32, 0) /* Collation generation index */
495 PERLVARI(Icollation_standard, bool, TRUE)
496 /* Assume simple collation */
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
497 #endif /* USE_LOCALE_COLLATE */
498
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
499
edd11d7 enable utf8 cache assertions on DEBUGGING builds
Dave Mitchell authored
500 #if defined (PERL_UTF8_CACHE_ASSERT) || defined (DEBUGGING)
95ca869 delete unused vars PL_av_fetch_sv, PL_hv_fetch_sv
Dave Mitchell authored
501 # define PERL___I -1
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
502 #else
7cd91da change #31246 unconditionally enabled utf8 cache debugging code
Dave Mitchell authored
503 # define PERL___I 1
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
504 #endif
95ca869 delete unused vars PL_av_fetch_sv, PL_hv_fetch_sv
Dave Mitchell authored
505 PERLVARI(Iutf8cache, I8, PERL___I) /* Is the utf8 caching code enabled? */
506 #undef PERL___I
507
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
508
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
509 #ifdef USE_LOCALE_NUMERIC
510
511 PERLVARI(Inumeric_standard, bool, TRUE)
512 /* Assume simple numerics */
513 PERLVARI(Inumeric_local, bool, TRUE)
514 /* Assume local numerics */
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
515 PERLVAR(Inumeric_name, char *) /* Name of current numeric locale */
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
516 #endif /* !USE_LOCALE_NUMERIC */
517
518 /* utf8 character classes */
519 PERLVAR(Iutf8_alnum, SV *)
b8c5462 @jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
520 PERLVAR(Iutf8_ascii, SV *)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
521 PERLVAR(Iutf8_alpha, SV *)
522 PERLVAR(Iutf8_space, SV *)
d1eb317 @demerphq somewhat fix failing regex tests. but break lots of other stuff at th…
demerphq authored
523 PERLVAR(Iutf8_perl_space, SV *)
524 PERLVAR(Iutf8_perl_word, SV *)
525 PERLVAR(Iutf8_posix_digit, SV *)
b8c5462 @jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
526 PERLVAR(Iutf8_cntrl, SV *)
527 PERLVAR(Iutf8_graph, SV *)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
528 PERLVAR(Iutf8_digit, SV *)
529 PERLVAR(Iutf8_upper, SV *)
530 PERLVAR(Iutf8_lower, SV *)
531 PERLVAR(Iutf8_print, SV *)
b8c5462 @jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
532 PERLVAR(Iutf8_punct, SV *)
533 PERLVAR(Iutf8_xdigit, SV *)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
534 PERLVAR(Iutf8_mark, SV *)
37e2e78 qr/\X/ expansion
Karl Williamson authored
535 PERLVAR(Iutf8_X_begin, SV *)
536 PERLVAR(Iutf8_X_extend, SV *)
537 PERLVAR(Iutf8_X_prepend, SV *)
538 PERLVAR(Iutf8_X_non_hangul, SV *)
539 PERLVAR(Iutf8_X_L, SV *)
540 PERLVAR(Iutf8_X_LV, SV *)
541 PERLVAR(Iutf8_X_LVT, SV *)
542 PERLVAR(Iutf8_X_T, SV *)
543 PERLVAR(Iutf8_X_V, SV *)
544 PERLVAR(Iutf8_X_LV_LVT_V, SV *)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
545 PERLVAR(Iutf8_toupper, SV *)
546 PERLVAR(Iutf8_totitle, SV *)
547 PERLVAR(Iutf8_tolower, SV *)
b4e400f @jhi Unicode: add ToFold mapping. Not used yet; but basically
jhi authored
548 PERLVAR(Iutf8_tofold, SV *)
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
549 PERLVAR(Ilast_swash_hv, HV *)
550 PERLVAR(Ilast_swash_tmps, U8 *)
551 PERLVAR(Ilast_swash_slen, STRLEN)
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
552 PERLVARA(Ilast_swash_key,10, U8)
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
553 PERLVAR(Ilast_swash_klen, U8) /* Only needs to store 0-10 */
554
555 #ifdef FCRYPT
556 PERLVARI(Icryptseen, bool, FALSE) /* has fast crypt() been initialized? */
557 #endif
558
f0cb02e The vestigial PL_pad_reset_pending can actually be bool, rather than
Nicholas Clark authored
559 PERLVAR(Ipad_reset_pending, bool) /* reset pad on next attempted alloc */
49947b4 Note where there is a U8 of space.
Nicholas Clark authored
560
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
561 PERLVARI(Iglob_index, int, 0)
562
0672f40 most globals are now interpreter local; locale initialization
Gurusamy Sarathy authored
563
5912531 move parser state into new parser object, PL_parser
Dave Mitchell authored
564 PERLVAR(Iparser, yy_parser *) /* current parser state */
12fbd33 make the bison-based parser threadsafe and capable of deep
Dave Mitchell authored
565
c4a30c8 Document the purpose of PL_psig_ptr and PL_psig_name.
Nicholas Clark authored
566 /* Array of signal handlers, indexed by signal number, through which the C
567 signal handler dispatches. */
1d7c184 integrate mainline changes
Gurusamy Sarathy authored
568 PERLVAR(Ipsig_ptr, SV**)
c4a30c8 Document the purpose of PL_psig_ptr and PL_psig_name.
Nicholas Clark authored
569 /* Array of names of signals, indexed by signal number, for (re)use as the first
d525a7b Use only one block of memory for both PL_psig_name and PL_psig_ptr.
Nicholas Clark authored
570 argument to a signal handler. Only one block of memory is allocated for
571 both psig_name and psig_ptr. */
c4a30c8 Document the purpose of PL_psig_ptr and PL_psig_name.
Nicholas Clark authored
572 PERLVAR(Ipsig_name, SV**)
1d7c184 integrate mainline changes
Gurusamy Sarathy authored
573
c5be433 yet more cleanups of the PERL_OBJECT, MULTIPLICITY and USE_THREADS
Gurusamy Sarathy authored
574 #if defined(PERL_IMPLICIT_SYS)
32e3070 support PERL_IMPLICIT_SYS with MULTIPLICITY/USE_THREADS on
Gurusamy Sarathy authored
575 PERLVAR(IMem, struct IPerlMem*)
1d7c184 integrate mainline changes
Gurusamy Sarathy authored
576 PERLVAR(IMemShared, struct IPerlMem*)
577 PERLVAR(IMemParse, struct IPerlMem*)
32e3070 support PERL_IMPLICIT_SYS with MULTIPLICITY/USE_THREADS on
Gurusamy Sarathy authored
578 PERLVAR(IEnv, struct IPerlEnv*)
579 PERLVAR(IStdIO, struct IPerlStdIO*)
580 PERLVAR(ILIO, struct IPerlLIO*)
581 PERLVAR(IDir, struct IPerlDir*)
582 PERLVAR(ISock, struct IPerlSock*)
583 PERLVAR(IProc, struct IPerlProc*)
76e3520 [asperl] added AS patch#2
Gurusamy Sarathy authored
584 #endif
1d7c184 integrate mainline changes
Gurusamy Sarathy authored
585
586 PERLVAR(Iptr_table, PTR_TBL_t*)
7d49f68 s/Nullav/NULL/g
Nicholas Clark authored
587 PERLVARI(Ibeginav_save, AV*, NULL) /* save BEGIN{}s when compiling */
f180df8 introduce illegal symbols into null package so that gv_fetchpv(...,TRUE)
Gurusamy Sarathy authored
588
fdda85c [patch] arena rework - unify arenaroots
Jim Cromie authored
589 PERLVAR(Ibody_arenas, void*) /* pointer to list of body-arenas */
93e68bf Re: eliminate discreet arenaroots
Jim Cromie authored
590
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
591
a453c16 @jhi Change PL_numeric_radix to PL_numeric_radix_sv (and leave in
jhi authored
592 #ifdef USE_LOCALE_NUMERIC
593
594 PERLVAR(Inumeric_radix_sv, SV *) /* The radix separator if not '.' */
595
596 #endif
ce08f86 Provide infrastructure for PERL_ASYNC_CHECK() style safe signals.
Nick Ing-Simmons authored
597
1fcf4c1 Threadsafe PMOPs! We might still win this war.
Artur Bergman authored
598 #if defined(USE_ITHREADS)
e685319 Better descriptions for PL_regex_pad and PL_regex_padav.
Nicholas Clark authored
599 PERLVAR(Iregex_pad, SV**) /* Shortcut into the array of
600 regex_padav */
601 PERLVAR(Iregex_padav, AV*) /* All regex objects, indexed via the
602 values in op_pmoffset of pmop.
402d2eb Pack the recycled pad offsets into an SV at PL_regex_pad[0]. This will
Nicholas Clark authored
603 Entry 0 is an SV whose PV is a
604 "packed" list of IVs listing
e685319 Better descriptions for PL_regex_pad and PL_regex_padav.
Nicholas Clark authored
605 the now-free slots in the array */
1fcf4c1 Threadsafe PMOPs! We might still win this war.
Artur Bergman authored
606 #endif
607
ea68fd6 Move the PERLVAR(Ireentrant_buffer, REENTR*) outside the ITHREADS
Nicholas Clark authored
608 #ifdef USE_REENTRANT_API
609 PERLVAR(Ireentrant_buffer, REENTR*) /* here we store the _r buffers */
f5a8281 @jhi Needed by #11283.
jhi authored
610 #endif
611
53e06cf Custom Ops
Simon Cozens authored
612 PERLVAR(Icustom_op_names, HV*) /* Names of user defined ops */
613 PERLVAR(Icustom_op_descs, HV*) /* Descriptions of user defined ops */
19e8ce8 Remove #ifdef PERL_CUSTOM_OPS, always build with PERL_CUSTOM_OPS
Artur Bergman authored
614
a1ea730 PerlIO layer table as PL_perlio (per-interpreter)
Nick Ing-Simmons authored
615 #ifdef PERLIO_LAYERS
616 PERLVARI(Iperlio, PerlIO *,NULL)
3a1ee7e Convert rest of PerlIO's memory tables to per-interp and add clone fu…
Nick Ing-Simmons authored
617 PERLVARI(Iknown_layers, PerlIO_list_t *,NULL)
618 PERLVARI(Idef_layerlist, PerlIO_list_t *,NULL)
a1ea730 PerlIO layer table as PL_perlio (per-interpreter)
Nick Ing-Simmons authored
619 #endif
620
a0714e2 Re: [PATCH] s/Null(gv|hv|sv)/NULL/g
Steven Schubiger authored
621 PERLVARI(Iencoding, SV*, NULL) /* character encoding */
0a37880 @jhi Add the encoding pragma to control the "upgrade"
jhi authored
622
128e816 @jhi The debug_pag needs to be visible at all times
jhi authored
623 PERLVAR(Idebug_pad, struct perl_debug_pad) /* always needed because of the re extension */
ce33321 @jhi Create a per-interpeter debug scratchpad container
jhi authored
624
82686b0 @jhi my $utf8here, our $utf8here, and package variable $utf8here.
jhi authored
625 PERLVAR(Iutf8_idstart, SV *)
626 PERLVAR(Iutf8_idcont, SV *)
627
147f47d Turn the sort RealCmp for stable quicksorts into a
Artur Bergman authored
628 PERLVAR(Isort_RealCmp, SVCOMPARE_t)
629
7d49f68 s/Nullav/NULL/g
Nicholas Clark authored
630 PERLVARI(Icheckav_save, AV*, NULL) /* save CHECK{}s when compiling */
3c10abe stab at UNITCHECK blocks
Alexander Gough authored
631 PERLVARI(Iunitcheckav_save, AV*, NULL) /* save UNITCHECK{}s when compiling */
ece599b @rgs B::check_av() ; B::Deparse for CHECK blocks
rgs authored
632
5311654 @jhi use sysconf(_SC_CLK_TCK) for times()
jhi authored
633 PERLVARI(Iclocktick, long, 0) /* this many times() ticks in a second */
634
edab1aa @jhi Slight beauty tweak.
jhi authored
635 PERLVARI(Iin_load_module, int, 0) /* to prevent recursions in PerlIO_find_layer */
636
a05d7eb @jhi The new(er) way of controlling Unicode I/O (and other) features;
jhi authored
637 PERLVAR(Iunicode, U32) /* Unicode features: $ENV{PERL_UNICODE} or -C */
638
4ffa73a @jhi PERL_SIGNALS=unsafe enables the old unsafe/immediate signals.
jhi authored
639 PERLVAR(Isignals, U32) /* Using which pre-5.8 signals */
640
57c6e6d @jhi Feel-good cleanup.
jhi authored
641 PERLVAR(Ireentrant_retint, int) /* Integer return value from reentrant functions */
642
9f7da6d By re-ordering declarations in interpvar.h and thrdvar.h, reduce the
Nicholas Clark authored
643 PERLVAR(Istashcache, HV *) /* Cache to speed up S_method_common */
644
15a5279 @jhi Move the thread *hook into interpreter.
jhi authored
645 /* Hooks to shared SVs and locks. */
646 PERLVARI(Isharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
d5b2b27 Given that sv_nosharing performs the same function as sv_nolocking
Nicholas Clark authored
647 PERLVARI(Ilockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing))
d0647d4 Avoid using space to create 2 functions just to force mathoms to be
Nicholas Clark authored
648 #ifdef NO_MATHOMS
649 # define PERL_UNLOCK_HOOK Perl_sv_nosharing
650 #else
651 /* This reference ensures that the mathoms are linked with perl */
652 # define PERL_UNLOCK_HOOK Perl_sv_nounlocking
653 #endif
654 PERLVARI(Iunlockhook, share_proc_t, MEMBER_TO_FPTR(PERL_UNLOCK_HOOK))
655
15a5279 @jhi Move the thread *hook into interpreter.
jhi authored
656 PERLVARI(Ithreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook))
657
504f80c @jhi Bite the bullet and apply the hash randomisation patch.
jhi authored
658 PERLVARI(Ihash_seed, UV, 0) /* Hash initializer */
659
008fb0c s/new_hash/rehash/g (Stas suggested a better name)
Nicholas Clark authored
660 PERLVARI(Irehash_seed, UV, 0) /* 582 hash initializer */
4b5190b Plan C for foiling the algorithmic complexity attack
Nicholas Clark authored
661
ba6d381 Move (most of) the conditionally compiled members of the interpreter
Nicholas Clark authored
662 PERLVARI(Iisarev, HV*, NULL) /* Reverse map of @ISA dependencies */
f16dd61 re-implement MY_CXT API more efficiently, and add explicit
Dave Mitchell authored
663
ffee3ff "Bake" the values of PERL_REVISION, PERL_VERSION and PERL_SUBVERSION
Nicholas Clark authored
664 /* The last unconditional member of the interpreter structure when 5.10.0 was
665 released. The offset of the end of this is baked into a global variable in
666 any shared perl library which will allow a sanity test in future perl
667 releases. */
668 #define PERL_LAST_5_10_0_INTERP_MEMBER Iisarev
669
f16dd61 re-implement MY_CXT API more efficiently, and add explicit
Dave Mitchell authored
670 #ifdef PERL_IMPLICIT_CONTEXT
4c901e7 tidy index arrangements in new MY_CXT code
Dave Mitchell authored
671 PERLVARI(Imy_cxt_size, int, 0) /* size of PL_my_cxt_list */
f16dd61 re-implement MY_CXT API more efficiently, and add explicit
Dave Mitchell authored
672 PERLVARI(Imy_cxt_list, void **, NULL) /* per-module array of MY_CXT pointers */
ba6d381 Move (most of) the conditionally compiled members of the interpreter
Nicholas Clark authored
673 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
53d4427 @jhi Symbian port: add Series 90 support
jhi authored
674 PERLVARI(Imy_cxt_keys, const char **, NULL) /* per-module array of pointers to MY_CXT_KEY constants */
ba6d381 Move (most of) the conditionally compiled members of the interpreter
Nicholas Clark authored
675 # endif
f16dd61 re-implement MY_CXT API more efficiently, and add explicit
Dave Mitchell authored
676 #endif
677
7cb608b Enhance PERL_TRACK_MEMPOOL so that it also emulates the PerlHost
Nicholas Clark authored
678 #ifdef PERL_TRACK_MEMPOOL
679 /* For use with the memory debugging code in util.c */
680 PERLVAR(Imemory_debug_header, struct perl_memory_debug_header)
681 #endif
682
ba6d381 Move (most of) the conditionally compiled members of the interpreter
Nicholas Clark authored
683 #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP
684 /* File descriptor to talk to the child which dumps scalars. */
685 PERLVARI(Idumper_fd, int, -1)
686 #endif
687
688 /* Stores the PPID */
689 #ifdef THREADS_HAVE_PIDS
690 PERLVARI(Ippid, IV, 0)
691 #endif
692
693 #ifdef PERL_MAD
694 PERLVARI(Imadskills, bool, FALSE) /* preserve all syntactic info */
695 /* (MAD = Misc Attribute Decoration) */
696 PERLVARI(Ixmlfp, PerlIO *,NULL)
697 #endif
698
699 #ifdef PL_OP_SLAB_ALLOC
700 PERLVAR(IOpPtr,I32 **)
701 PERLVARI(IOpSpace,I32,0)
702 PERLVAR(IOpSlab,I32 *)
703 #endif
704
f1fac47 Add a new compile option PERL_DEBUG_READONLY_OPS which marks the optree
Nicholas Clark authored
705 #ifdef PERL_DEBUG_READONLY_OPS
706 PERLVARI(Islabs, I32**, NULL) /* Array of slabs that have been allocated */
707 PERLVARI(Islab_count, U32, 0) /* Size of the array */
708 #endif
709
eba1666 Bug fix for storing shared objects in shared structures
Jerry D. Hedden authored
710 /* Can shared object be destroyed */
711 PERLVARI(Idestroyhook, destroyable_proc_t, MEMBER_TO_FPTR(Perl_sv_destroyable))
712
d7a2c63 Add SV allocation tracing to -Dm and PERL_MEM_LOG
Marcus Holland-Moritz authored
713 #ifdef DEBUG_LEAKING_SCALARS
714 PERLVARI(Isv_serial, U32, 0) /* SV serial number, used in sv.c */
715 #endif
716
a3e6e81 Add Perl_mro_register() to register Method Resolution Orders,
Nicholas Clark authored
717 /* Register of known Method Resolution Orders.
718 What this actually points to is an implementation detail (it may change to
719 a structure incorporating a reference count - use mro_get_from_name to
720 retrieve a C<struct mro_alg *> */
721 PERLVAR(Iregistered_mros, HV *)
722
157b382 Shrink 4 bytes (ILP32) from the interpreter structure.
Nicholas Clark authored
723 /* If you are adding a U8 or U16, check to see if there are 'Space' comments
724 * above on where there are gaps which currently will be structure padding. */
d95e864 More variable reordering saves another 40 bytes from the interpreter
Nicholas Clark authored
725
726 /* Within a stable branch, new variables must be added to the very end, before
727 * this comment, for binary compatibility (the offsets of the old members must
728 * not change).
b83cd12 @jhi Comment tweakage.
jhi authored
729 * (Don't forget to add your variable also to perl_clone()!)
e3acbfd move new variables to the end of the interpreter structure (for
Gurusamy Sarathy authored
730 * XSUB.h provides wrapper functions via perlapi.h that make this
b83cd12 @jhi Comment tweakage.
jhi authored
731 * irrelevant, but not all code may be expected to #include XSUB.h.
732 */
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