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1 | /* perlvars.h |
2 | * | |
3 | * Copyright (C) 1999, 2000, 2001, 2002, 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 | /* Truly global */ | |
12 | /****************/ | |
13 | ||
14 | /* Don't forget to re-run embed.pl to propagate changes! */ | |
15 | ||
16 | /* This file describes the "global" variables used by perl | |
17 | * This used to be in perl.h directly but we want to abstract out into | |
18 | * distinct files which are per-thread, per-interpreter or really global, | |
19 | * and how they're initialized. | |
20 | * | |
21 | * The 'G' prefix is only needed for vars that need appropriate #defines | |
22 | * generated in embed*.h. Such symbols are also used to generate | |
23 | * the appropriate export list for win32. */ | |
24 | ||
25 | /* global state */ | |
26 | PERLVAR(Gcurinterp, PerlInterpreter *) | |
27 | /* currently running interpreter | |
28 | * (initial parent interpreter under | |
29 | * useithreads) */ | |
30 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) | |
31 | PERLVAR(Gthr_key, perl_key) /* key to retrieve per-thread struct */ | |
32 | #endif | |
33 | ||
34 | /* constants (these are not literals to facilitate pointer comparisons) */ | |
35 | PERLVARIC(GYes, char *, "1") | |
36 | PERLVARIC(GNo, char *, "") | |
37 | PERLVARIC(Ghexdigit, char *, "0123456789abcdef0123456789ABCDEF") | |
38 | PERLVARIC(Gpatleave, char *, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}") | |
39 | ||
40 | /* XXX does anyone even use this? */ | |
41 | PERLVARI(Gdo_undump, bool, FALSE) /* -u or dump seen? */ | |
42 | ||
43 | #if defined(MYMALLOC) && (defined(USE_5005THREADS) || defined(USE_ITHREADS)) | |
44 | PERLVAR(Gmalloc_mutex, perl_mutex) /* Mutex for malloc */ | |
45 | #endif | |
46 | ||
47 | #if defined(USE_ITHREADS) | |
48 | PERLVAR(Gop_mutex, perl_mutex) /* Mutex for op refcounting */ | |
49 | #endif | |
50 | ||
51 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) | |
52 | PERLVAR(Gdollarzero_mutex, perl_mutex) /* Modifying $0 */ | |
53 | #endif | |
54 | ||
55 | /* This is constant on most architectures, a global on OS/2 */ | |
56 | PERLVARI(Gsh_path, const char *, SH_PATH)/* full path of shell */ | |
57 | ||
58 | #ifndef PERL_MICRO | |
59 | /* If Perl has to ignore SIGPFE, this is its saved state. | |
60 | * See perl.h macros PERL_FPU_INIT and PERL_FPU_{PRE,POST}_EXEC. */ | |
61 | PERLVAR(Gsigfpe_saved, Sighandler_t) | |
62 | #endif | |
63 | ||
64 | /* Restricted hashes placeholder value. | |
65 | * The contents are never used, only the address. */ | |
66 | PERLVAR(Gsv_placeholder, SV) | |
67 | ||
68 | #ifndef PERL_MICRO | |
69 | PERLVARI(Gcsighandlerp, Sighandler_t, Perl_csighandler) /* Pointer to C-level sighandler */ | |
70 | #endif | |
71 | ||
72 | #ifndef PERL_USE_SAFE_PUTENV | |
73 | PERLVARI(Guse_safe_putenv, int, 1) | |
74 | #endif |