3 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
4 * by Larry Wall and others
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.
15 /* Don't forget to re-run embed.pl to propagate changes! */
17 /* This file describes the "global" variables used by perl
18 * This used to be in perl.h directly but we want to abstract out into
19 * distinct files which are per-thread, per-interpreter or really global,
20 * and how they're initialized.
22 * The 'G' prefix is only needed for vars that need appropriate #defines
23 * generated in embed*.h. Such symbols are also used to generate
24 * the appropriate export list for win32. */
27 PERLVAR(Gcurinterp, PerlInterpreter *)
28 /* currently running interpreter
29 * (initial parent interpreter under
31 #if defined(USE_ITHREADS)
32 PERLVAR(Gthr_key, perl_key) /* key to retrieve per-thread struct */
35 /* constants (these are not literals to facilitate pointer comparisons)
36 * (PERLVARISC really does create variables, despite its looks) */
39 PERLVARISC(Ghexdigit, "0123456789abcdef0123456789ABCDEF")
40 PERLVARISC(Gpatleave, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}")
42 /* XXX does anyone even use this? */
43 PERLVARI(Gdo_undump, bool, FALSE) /* -u or dump seen? */
45 #if defined(MYMALLOC) && defined(USE_ITHREADS)
46 PERLVAR(Gmalloc_mutex, perl_mutex) /* Mutex for malloc */
49 #if defined(USE_ITHREADS)
50 PERLVAR(Gop_mutex, perl_mutex) /* Mutex for op refcounting */
54 PERLVAR(Gdollarzero_mutex, perl_mutex) /* Modifying $0 */
57 /* This is constant on most architectures, a global on OS/2 */
59 PERLVARI(Gsh_path, char *, SH_PATH)/* full path of shell */
61 PERLVARI(Gsh_path, const char *, SH_PATH)/* full path of shell */
65 /* If Perl has to ignore SIGPFE, this is its saved state.
66 * See perl.h macros PERL_FPU_INIT and PERL_FPU_{PRE,POST}_EXEC. */
67 PERLVAR(Gsigfpe_saved, Sighandler_t)
70 /* Restricted hashes placeholder value.
71 * The contents are never used, only the address. */
72 PERLVAR(Gsv_placeholder, SV)
75 PERLVARI(Gcsighandlerp, Sighandler_t, Perl_csighandler) /* Pointer to C-level sighandler */
78 #ifndef PERL_USE_SAFE_PUTENV
79 PERLVARI(Guse_safe_putenv, int, 1)
83 PERLVARI(Gperlio_fd_refcnt, int*, 0) /* Pointer to array of fd refcounts. */
84 PERLVARI(Gperlio_fd_refcnt_size, int, 0) /* Size of the array */
85 PERLVARI(Gperlio_debug_fd, int, 0) /* the fd to write perlio debug into, 0 means not set yet */
89 PERLVARI(Gmmap_page_size, IV, 0)
92 #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS)
93 PERLVARI(Gsig_handlers_initted, int, 0)
95 #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
96 PERLVARA(Gsig_ignoring, SIG_SIZE, int) /* which signals we are ignoring */
98 #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS
99 PERLVARA(Gsig_defaulting, SIG_SIZE, int)
102 #ifndef PERL_IMPLICIT_CONTEXT
103 PERLVAR(Gsig_sv, SV*)
106 /* XXX signals are process-wide anyway, so we
107 * ignore the implications of this for threading */
108 #ifndef HAS_SIGACTION
109 PERLVARI(Gsig_trapped, int, 0)
113 PERLVAR(Gwatch_pvx, char*)
116 #ifdef PERL_GLOBAL_STRUCT
117 PERLVAR(Gppaddr, Perl_ppaddr_t*) /* or opcode.h */
118 PERLVAR(Gcheck, Perl_check_t *) /* or opcode.h */
119 PERLVARA(Gfold_locale, 256, unsigned char) /* or perl.h */
122 #ifdef PERL_NEED_APPCTX
123 PERLVAR(Gappctx, void*) /* the application context */
126 PERLVAR(Gop_sequence, HV*) /* dump.c */
127 PERLVARI(Gop_seq, UV, 0) /* dump.c */
129 #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
130 PERLVAR(Gtimesbase, struct tms)
133 /* allocate a unique index to every module that calls MY_CXT_INIT */
135 #ifdef PERL_IMPLICIT_CONTEXT
137 PERLVAR(Gmy_ctx_mutex, perl_mutex)
139 PERLVARI(Gmy_cxt_index, int, 0)
142 #if defined(USE_ITHREADS)
143 PERLVAR(Ghints_mutex, perl_mutex) /* Mutex for refcounted he refcounting */
146 #if defined(USE_ITHREADS)
147 PERLVAR(Gperlio_mutex, perl_mutex) /* Mutex for perlio fd refcounts */
150 /* this is currently set without MUTEX protection, so keep it a type which
151 * can be set atomically (ie not a bit field) */
152 PERLVARI(Gveto_cleanup, int, FALSE) /* exit without cleanup */