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document unimplemented status of forking pipe open() on windows
[perl5.git] / thrdvar.h
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1/***********************************************/
2/* Global only to current thread */
3/***********************************************/
4
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5/* Don't forget to re-run embed.pl to propagate changes! */
6
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7/* The 'T' prefix is only needed for vars that need appropriate #defines
8 * generated when built with or without USE_THREADS. It is also used
9 * to generate the appropriate export list for win32.
10 *
11 * When building without USE_THREADS, these variables will be truly global.
12 * When building without USE_THREADS but with MULTIPLICITY, these variables
13 * will be global per-interpreter.
14 *
15 * Avoid build-specific #ifdefs here, like DEBUGGING. That way,
16 * we can keep binary compatibility of the curinterp structure */
8b3be1d1 17
49f531da 18/* Important ones in the first cache line (if alignment is done right) */
d4cce5f1 19
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20#ifdef USE_THREADS
21PERLVAR(interp, PerlInterpreter*) /* thread owner */
22#endif
23
cb68f92d 24PERLVAR(Tstack_sp, SV **) /* top of the stack */
49f531da 25#ifdef OP_IN_REGISTER
cb68f92d 26PERLVAR(Topsave, OP *)
49f531da 27#else
cb68f92d 28PERLVAR(Top, OP *) /* currently executing op */
49f531da 29#endif
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30PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */
31
32PERLVAR(Tstack_base, SV **)
33PERLVAR(Tstack_max, SV **)
34
35PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */
36PERLVAR(Tscopestack_ix, I32)
37PERLVAR(Tscopestack_max,I32)
49f531da 38
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39PERLVAR(Tsavestack, ANY *) /* items that need to be restored
40 when LEAVEing scopes we've ENTERed */
41PERLVAR(Tsavestack_ix, I32)
42PERLVAR(Tsavestack_max, I32)
49f531da 43
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44PERLVAR(Ttmps_stack, SV **) /* mortals we've made */
45PERLVARI(Ttmps_ix, I32, -1)
46PERLVARI(Ttmps_floor, I32, -1)
47PERLVAR(Ttmps_max, I32)
49f531da 48
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49PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */
50PERLVAR(Tmarkstack_ptr, I32 *)
51PERLVAR(Tmarkstack_max, I32 *)
49f531da 52
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53PERLVAR(Tretstack, OP **) /* OPs we have postponed executing */
54PERLVAR(Tretstack_ix, I32)
55PERLVAR(Tretstack_max, I32)
49f531da 56
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57PERLVAR(TSv, SV *) /* used to hold temporary values */
58PERLVAR(TXpv, XPV *) /* used to hold temporary values */
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59PERLVAR(Tna, STRLEN) /* for use in SvPV when length is
60 Not Applicable */
49f531da 61
5c0ca799 62/* stat stuff */
cb68f92d 63PERLVAR(Tstatbuf, Stat_t)
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64PERLVAR(Tstatcache, Stat_t) /* _ */
65PERLVAR(Tstatgv, GV *)
66PERLVARI(Tstatname, SV *, Nullsv)
67
49f531da 68#ifdef HAS_TIMES
cb68f92d 69PERLVAR(Ttimesbuf, struct tms)
49f531da 70#endif
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71
72/* Fields used by magic variables such as $@, $/ and so on */
d4cce5f1 73PERLVAR(Ttainted, bool) /* using variables controlled by $< */
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74PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */
75PERLVAR(Tnrs, SV *)
76PERLVAR(Trs, SV *) /* input record separator $/ */
77PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */
78PERLVAR(Tofs, char *) /* output field separator $, */
79PERLVAR(Tofslen, STRLEN)
80PERLVAR(Tdefoutgv, GV *) /* default FH for output */
d4cce5f1 81PERLVARI(Tchopset, char *, " \n-") /* $: */
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82PERLVAR(Tformtarget, SV *)
83PERLVAR(Tbodytarget, SV *)
84PERLVAR(Ttoptarget, SV *)
49f531da 85
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86/* Stashes */
87PERLVAR(Tdefstash, HV *) /* main symbol table */
88PERLVAR(Tcurstash, HV *) /* symbol table for current package */
49f531da 89
cb68f92d 90PERLVAR(Trestartop, OP *) /* propagating an error from croak? */
3280af22 91PERLVARI(Tcurcop, COP * VOL, &PL_compiling)
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92PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */
93PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */
24d3c518 94PERLVARI(Tdirty, bool, FALSE) /* in the middle of tearing things down? */
61bb5906 95PERLVAR(Tlocalizing, int) /* are we processing a local() list? */
49f531da 96
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97PERLVAR(Tcurstack, AV *) /* THE STACK */
98PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */
99PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */
312caa8e 100
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101PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */
102PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */
0b94c7bb 103PERLVARI(Tprotect, protect_proc_t, MEMBER_TO_FPTR(Perl_default_protect))
5a844595 104PERLVARI(Terrors, SV *, Nullsv) /* outstanding queued errors */
49f531da 105
4e4c362e 106/* statics "owned" by various functions */
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107PERLVAR(Tav_fetch_sv, SV *) /* owned by av_fetch() */
108PERLVAR(Thv_fetch_sv, SV *) /* owned by hv_fetch() */
109PERLVAR(Thv_fetch_ent_mh, HE) /* owned by hv_fetch_ent() */
110
111PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */
4e4c362e 112
5c0ca799 113PERLVAR(Tlastgotoprobe, OP*) /* from pp_ctl.c */
3967c732 114PERLVARI(Tdumpindent, I32, 4) /* # of blanks per dump indentation level */
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115
116/* sort stuff */
117PERLVAR(Tsortcop, OP *) /* user defined sort routine */
118PERLVAR(Tsortstash, HV *) /* which is in some package or other */
119PERLVAR(Tfirstgv, GV *) /* $a */
120PERLVAR(Tsecondgv, GV *) /* $b */
121PERLVAR(Tsortcxix, I32) /* from pp_ctl.c */
122
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123/* float buffer */
124PERLVAR(Tefloatbuf, char*)
125PERLVAR(Tefloatsize, STRLEN)
126
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127/* regex stuff */
128
129PERLVAR(Tscreamfirst, I32 *)
130PERLVAR(Tscreamnext, I32 *)
131PERLVARI(Tmaxscream, I32, -1)
132PERLVAR(Tlastscream, SV *)
133
134PERLVAR(Tregdummy, regnode) /* from regcomp.c */
135PERLVAR(Tregcomp_parse, char*) /* Input-scan pointer. */
136PERLVAR(Tregxend, char*) /* End of input for compile */
137PERLVAR(Tregcode, regnode*) /* Code-emit pointer; &regdummy = don't */
138PERLVAR(Tregnaughty, I32) /* How bad is this pattern? */
139PERLVAR(Tregsawback, I32) /* Did we see \1, ...? */
140PERLVAR(Tregprecomp, char *) /* uncompiled string. */
141PERLVAR(Tregnpar, I32) /* () count. */
142PERLVAR(Tregsize, I32) /* Code size. */
143PERLVAR(Tregflags, U16) /* are we folding, multilining? */
144PERLVAR(Tregseen, U32) /* from regcomp.c */
145PERLVAR(Tseen_zerolen, I32) /* from regcomp.c */
146PERLVAR(Tseen_evals, I32) /* from regcomp.c */
147PERLVAR(Tregcomp_rx, regexp *) /* from regcomp.c */
148PERLVAR(Textralen, I32) /* from regcomp.c */
149PERLVAR(Tcolorset, int) /* from regcomp.c */
51371543 150PERLVARA(Tcolors,6, char *) /* from regcomp.c */
82ba1be6 151PERLVAR(Treg_whilem_seen, I32) /* number of WHILEM in this expr */
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152PERLVAR(Treginput, char *) /* String-input pointer. */
153PERLVAR(Tregbol, char *) /* Beginning of input, for ^ check. */
154PERLVAR(Tregeol, char *) /* End of input, for $ check. */
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155PERLVAR(Tregstartp, I32 *) /* Pointer to startp array. */
156PERLVAR(Tregendp, I32 *) /* Ditto for endp. */
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157PERLVAR(Treglastparen, U32 *) /* Similarly for lastparen. */
158PERLVAR(Tregtill, char *) /* How far we are required to go. */
159PERLVAR(Tregprev, char) /* char before regbol, \n if none */
160PERLVAR(Treg_start_tmp, char **) /* from regexec.c */
161PERLVAR(Treg_start_tmpl,U32) /* from regexec.c */
162PERLVAR(Tregdata, struct reg_data *)
163 /* from regexec.c renamed was data */
164PERLVAR(Tbostr, char *) /* from regexec.c */
165PERLVAR(Treg_flags, U32) /* from regexec.c */
166PERLVAR(Treg_eval_set, I32) /* from regexec.c */
167PERLVAR(Tregnarrate, I32) /* from regexec.c */
168PERLVAR(Tregprogram, regnode *) /* from regexec.c */
169PERLVARI(Tregindent, int, 0) /* from regexec.c */
170PERLVAR(Tregcc, CURCUR *) /* from regexec.c */
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171PERLVAR(Treg_call_cc, struct re_cc_state *) /* from regexec.c */
172PERLVAR(Treg_re, regexp *) /* from regexec.c */
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173PERLVAR(Treg_ganch, char *) /* position of \G */
174PERLVAR(Treg_sv, SV *) /* what we match against */
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175PERLVAR(Treg_magic, MAGIC *) /* pos-magic of what we match */
176PERLVAR(Treg_oldpos, I32) /* old pos of what we match */
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177PERLVARI(Treg_oldcurpm, PMOP*, NULL) /* curpm before match */
178PERLVARI(Treg_curpm, PMOP*, NULL) /* curpm during match */
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179PERLVAR(Treg_oldsaved, char*) /* old saved substr during match */
180PERLVAR(Treg_oldsavedlen, STRLEN) /* old length of saved substr during match */
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181PERLVAR(Treg_maxiter, I32) /* max wait until caching pos */
182PERLVAR(Treg_leftiter, I32) /* wait until caching pos */
183PERLVARI(Treg_poscache, char *, Nullch) /* cache of pos of WHILEM */
184PERLVAR(Treg_poscache_size, STRLEN) /* size of pos cache of WHILEM */
5c0ca799 185
0b94c7bb 186PERLVARI(Tregcompp, regcomp_t, MEMBER_TO_FPTR(Perl_pregcomp))
f722798b 187 /* Pointer to REx compiler */
0b94c7bb 188PERLVARI(Tregexecp, regexec_t, MEMBER_TO_FPTR(Perl_regexec_flags))
f722798b 189 /* Pointer to REx executer */
0b94c7bb 190PERLVARI(Tregint_start, re_intuit_start_t, MEMBER_TO_FPTR(Perl_re_intuit_start))
f722798b 191 /* Pointer to optimized REx executer */
0b94c7bb 192PERLVARI(Tregint_string,re_intuit_string_t, MEMBER_TO_FPTR(Perl_re_intuit_string))
f722798b 193 /* Pointer to optimized REx string */
0b94c7bb 194PERLVARI(Tregfree, regfree_t, MEMBER_TO_FPTR(Perl_pregfree))
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195 /* Pointer to REx free()er */
196
57668c4d 197PERLVARI(Treginterp_cnt,int, 0) /* Whether `Regexp'
5c0ca799 198 was interpolated. */
364723c2 199PERLVARI(Treg_starttry, char *, 0) /* -Dr: where regtry was called. */
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200PERLVARI(Twatchaddr, char **, 0)
201PERLVAR(Twatchok, char *)
d4cce5f1 202
8b3be1d1 203/* Note that the variables below are all explicitly referenced in the code
cb68f92d 204 * as thr->whatever and therefore don't need the 'T' prefix. */
8b3be1d1 205
d4cce5f1 206#ifdef USE_THREADS
49f531da 207
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208PERLVAR(oursv, SV *)
209PERLVAR(cvcache, HV *)
210PERLVAR(self, perl_os_thread) /* Underlying thread object */
211PERLVAR(flags, U32)
212PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */
213PERLVAR(threadsvp, SV **) /* AvARRAY(threadsv) */
214PERLVAR(specific, AV *) /* Thread-specific user data */
215PERLVAR(errsv, SV *) /* Backing SV for $@ */
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216PERLVAR(mutex, perl_mutex) /* For the fields others can change */
217PERLVAR(tid, U32)
49f531da 218PERLVAR(prev, struct perl_thread *)
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219PERLVAR(next, struct perl_thread *)
220 /* Circular linked list of threads */
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221
222#ifdef HAVE_THREAD_INTERN
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223PERLVAR(i, struct thread_intern)
224 /* Platform-dependent internals */
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225#endif
226
cb68f92d 227PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */
49f531da 228
d4cce5f1 229#endif /* USE_THREADS */