-/* Per-thread variables */
+/***********************************************/
+/* Global only to current thread */
+/***********************************************/
+
+/* Don't forget to re-run embed.pl to propagate changes! */
+
+/* The 'T' prefix is only needed for vars that need appropriate #defines
+ * generated when built with or without USE_THREADS. It is also used
+ * to generate the appropriate export list for win32.
+ *
+ * When building without USE_THREADS, these variables will be truly global.
+ * When building without USE_THREADS but with MULTIPLICITY, these variables
+ * will be global per-interpreter.
+ *
+ * Avoid build-specific #ifdefs here, like DEBUGGING. That way,
+ * we can keep binary compatibility of the curinterp structure */
+
/* Important ones in the first cache line (if alignment is done right) */
-PERLVAR(Tstack_sp, SV **)
+
+PERLVAR(Tstack_sp, SV **) /* top of the stack */
#ifdef OP_IN_REGISTER
-PERLVAR(Topsave, OP *)
+PERLVAR(Topsave, OP *)
#else
-PERLVAR(Top, OP *)
+PERLVAR(Top, OP *) /* currently executing op */
#endif
-PERLVAR(Tcurpad, SV **)
-PERLVAR(Tstack_base, SV **)
+PERLVAR(Tcurpad, SV **) /* active pad (lexicals+tmps) */
+
+PERLVAR(Tstack_base, SV **)
+PERLVAR(Tstack_max, SV **)
+
+PERLVAR(Tscopestack, I32 *) /* scopes we've ENTERed */
+PERLVAR(Tscopestack_ix, I32)
+PERLVAR(Tscopestack_max,I32)
-PERLVAR(Tstack_max, SV **)
+PERLVAR(Tsavestack, ANY *) /* items that need to be restored
+ when LEAVEing scopes we've ENTERed */
+PERLVAR(Tsavestack_ix, I32)
+PERLVAR(Tsavestack_max, I32)
-PERLVAR(Tscopestack, I32 *)
-PERLVAR(Tscopestack_ix, I32)
-PERLVAR(Tscopestack_max,I32)
+PERLVAR(Ttmps_stack, SV **) /* mortals we've made */
+PERLVARI(Ttmps_ix, I32, -1)
+PERLVARI(Ttmps_floor, I32, -1)
+PERLVAR(Ttmps_max, I32)
-PERLVAR(Tsavestack, ANY *)
-PERLVAR(Tsavestack_ix, I32)
-PERLVAR(Tsavestack_max, I32)
+PERLVAR(Tmarkstack, I32 *) /* stack_sp locations we're remembering */
+PERLVAR(Tmarkstack_ptr, I32 *)
+PERLVAR(Tmarkstack_max, I32 *)
-PERLVAR(Tretstack, OP **)
-PERLVAR(Tretstack_ix, I32)
-PERLVAR(Tretstack_max, I32)
+PERLVAR(Tretstack, OP **) /* OPs we have postponed executing */
+PERLVAR(Tretstack_ix, I32)
+PERLVAR(Tretstack_max, I32)
-PERLVAR(Tmarkstack, I32 *)
-PERLVAR(Tmarkstack_ptr, I32 *)
-PERLVAR(Tmarkstack_max, I32 *)
+PERLVAR(TSv, SV *) /* used to hold temporary values */
+PERLVAR(TXpv, XPV *) /* used to hold temporary values */
-PERLVAR(TSv, SV *)
-PERLVAR(TXpv, XPV *)
-PERLVAR(Tstatbuf, struct stat)
+PERLVAR(Tstatbuf, Stat_t)
#ifdef HAS_TIMES
-PERLVAR(Ttimesbuf, struct tms)
+PERLVAR(Ttimesbuf, struct tms)
#endif
-
-/* XXX What about regexp stuff? */
-
-/* Now the fields that used to be "per interpreter" (even when global) */
/* Fields used by magic variables such as $@, $/ and so on */
-PERLVAR(Ttainted, bool)
-PERLVAR(Tcurpm, PMOP *)
-PERLVAR(Tnrs, SV *)
-PERLVAR(Trs, SV *)
-PERLVAR(Tlast_in_gv, GV *)
-PERLVAR(Tofs, char *)
-PERLVAR(Tofslen, STRLEN)
-PERLVAR(Tdefoutgv, GV *)
-PERLVAR(Tchopset, char *)
-PERLVAR(Tformtarget, SV *)
-PERLVAR(Tbodytarget, SV *)
-PERLVAR(Ttoptarget, SV *)
-
- /* Stashes */
-PERLVAR(Tdefstash, HV *)
-PERLVAR(Tcurstash, HV *)
-
- /* Stacks */
-PERLVAR(Ttmps_stack, SV **)
-PERLVAR(Ttmps_ix, I32)
-PERLVAR(Ttmps_floor, I32)
-PERLVAR(Ttmps_max, I32)
-
-PERLVAR(Tin_eval, int)
-PERLVAR(Trestartop, OP *)
-PERLVAR(Tdelaymagic, int)
-PERLVAR(Tdirty, bool)
-PERLVAR(Tlocalizing, U8)
-PERLVAR(Tcurcop, COP *)
-
-PERLVAR(Tcxstack, PERL_CONTEXT *)
-PERLVAR(Tcxstack_ix, I32)
-PERLVAR(Tcxstack_max, I32)
-
-PERLVAR(Tcurstack, AV *)
-PERLVAR(Tmainstack, AV *)
-PERLVAR(Ttop_env, JMPENV *)
-PERLVAR(Tstart_env, JMPENV) /* Top of top_env longjmp() chain */
+PERLVAR(Ttainted, bool) /* using variables controlled by $< */
+PERLVAR(Tcurpm, PMOP *) /* what to do \ interps in REs from */
+PERLVAR(Tnrs, SV *)
+PERLVAR(Trs, SV *) /* input record separator $/ */
+PERLVAR(Tlast_in_gv, GV *) /* GV used in last <FH> */
+PERLVAR(Tofs, char *) /* output field separator $, */
+PERLVAR(Tofslen, STRLEN)
+PERLVAR(Tdefoutgv, GV *) /* default FH for output */
+PERLVARI(Tchopset, char *, " \n-") /* $: */
+PERLVAR(Tformtarget, SV *)
+PERLVAR(Tbodytarget, SV *)
+PERLVAR(Ttoptarget, SV *)
+
+/* Stashes */
+PERLVAR(Tdefstash, HV *) /* main symbol table */
+PERLVAR(Tcurstash, HV *) /* symbol table for current package */
+
+PERLVAR(Trestartop, OP *) /* propagating an error from croak? */
+PERLVARI(Tcurcop, COP * VOL, &compiling)
+PERLVAR(Tin_eval, VOL int) /* trap "fatal" errors? */
+PERLVAR(Tdelaymagic, int) /* ($<,$>) = ... */
+PERLVAR(Tdirty, bool) /* in the middle of tearing things down? */
+PERLVAR(Tlocalizing, int) /* are we processing a local() list? */
+
+PERLVAR(Tcurstack, AV *) /* THE STACK */
+PERLVAR(Tcurstackinfo, PERL_SI *) /* current stack + context */
+PERLVAR(Tmainstack, AV *) /* the stack when nothing funny is happening */
+PERLVAR(Ttop_env, JMPENV *) /* ptr. to current sigjmp() environment */
+PERLVAR(Tstart_env, JMPENV) /* empty startup sigjmp() environment */
+
+/* statics "owned" by various functions */
+PERLVAR(Tav_fetch_sv, SV *) /* owned by av_fetch() */
+PERLVAR(Thv_fetch_sv, SV *) /* owned by hv_fetch() */
+PERLVAR(Thv_fetch_ent_mh, HE) /* owned by hv_fetch_ent() */
+
+PERLVAR(Tmodcount, I32) /* how much mod()ification in assignment? */
/* XXX Sort stuff, firstgv secongv and so on? */
+/* XXX What about regexp stuff? */
-PERLVAR(oursv, SV *)
-PERLVAR(cvcache, HV *)
-PERLVAR(self, perl_os_thread) /* Underlying thread object */
-PERLVAR(flags, U32)
-PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */
-PERLVAR(specific, AV *) /* Thread-specific user data */
-PERLVAR(errsv, SV *) /* Backing SV for $@ */
-PERLVAR(errhv, HV *) /* HV for what was %@ in pp_ctl.c */
-PERLVAR(mutex, perl_mutex) /* For the fields others can change */
-PERLVAR(tid, U32)
+/* Note that the variables below are all explicitly referenced in the code
+ * as thr->whatever and therefore don't need the 'T' prefix. */
+
+#ifdef USE_THREADS
+
+PERLVAR(oursv, SV *)
+PERLVAR(cvcache, HV *)
+PERLVAR(self, perl_os_thread) /* Underlying thread object */
+PERLVAR(flags, U32)
+PERLVAR(threadsv, AV *) /* Per-thread SVs ($_, $@ etc.) */
+PERLVAR(threadsvp, SV **) /* AvARRAY(threadsv) */
+PERLVAR(specific, AV *) /* Thread-specific user data */
+PERLVAR(errsv, SV *) /* Backing SV for $@ */
+PERLVAR(errhv, HV *) /* HV for what was %@ in pp_ctl.c */
+PERLVAR(mutex, perl_mutex) /* For the fields others can change */
+PERLVAR(tid, U32)
PERLVAR(prev, struct perl_thread *)
-PERLVAR(next, struct perl_thread *) /* Circular linked list of threads */
+PERLVAR(next, struct perl_thread *)
+ /* Circular linked list of threads */
#ifdef HAVE_THREAD_INTERN
-PERLVAR(i, struct thread_intern) /* Platform-dependent internals */
+PERLVAR(i, struct thread_intern)
+ /* Platform-dependent internals */
#endif
-PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */
+PERLVAR(trailing_nul, char) /* For the sake of thrsv and oursv */
+#endif /* USE_THREADS */
projects / p5sagit/p5-mst-13.2.git / blobdiff