| 1 | /* perlvars.h
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| 2 | *
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| 3 | * Copyright (C) 1999, 2000, 2001, 2002, by Larry Wall and others
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| 4 | *
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| 5 | * You may distribute under the terms of either the GNU General Public
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| 6 | * License or the Artistic License, as specified in the README file.
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| 7 | *
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| 8 | */
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| 9 |
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| 10 | /****************/
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| 11 | /* Truly global */
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| 12 | /****************/
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| 13 |
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| 14 | /* Don't forget to re-run embed.pl to propagate changes! */
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| 15 |
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| 16 | /* This file describes the "global" variables used by perl
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| 17 | * This used to be in perl.h directly but we want to abstract out into
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| 18 | * distinct files which are per-thread, per-interpreter or really global,
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| 19 | * and how they're initialized.
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| 20 | *
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| 21 | * The 'G' prefix is only needed for vars that need appropriate #defines
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| 22 | * generated in embed*.h. Such symbols are also used to generate
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| 23 | * the appropriate export list for win32. */
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| 24 |
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| 25 | /* global state */
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| 26 | PERLVAR(Gcurinterp, PerlInterpreter *)
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| 27 | /* currently running interpreter
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| 28 | * (initial parent interpreter under
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| 29 | * useithreads) */
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| 30 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
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| 31 | PERLVAR(Gthr_key, perl_key) /* key to retrieve per-thread struct */
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| 32 | #endif
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| 33 |
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| 34 | /* constants (these are not literals to facilitate pointer comparisons) */
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| 35 | PERLVARIC(GYes, char *, "1")
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| 36 | PERLVARIC(GNo, char *, "")
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| 37 | PERLVARIC(Ghexdigit, char *, "0123456789abcdef0123456789ABCDEF")
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| 38 | PERLVARIC(Gpatleave, char *, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}")
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| 39 |
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| 40 | /* XXX does anyone even use this? */
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| 41 | PERLVARI(Gdo_undump, bool, FALSE) /* -u or dump seen? */
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| 42 |
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| 43 | #if defined(MYMALLOC) && (defined(USE_5005THREADS) || defined(USE_ITHREADS))
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| 44 | PERLVAR(Gmalloc_mutex, perl_mutex) /* Mutex for malloc */
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| 45 | #endif
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| 46 |
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| 47 | #if defined(USE_ITHREADS)
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| 48 | PERLVAR(Gop_mutex, perl_mutex) /* Mutex for op refcounting */
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| 49 | #endif
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| 50 |
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| 51 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
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| 52 | PERLVAR(Gdollarzero_mutex, perl_mutex) /* Modifying $0 */
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| 53 | #endif
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| 54 |
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| 55 | /* This is constant on most architectures, a global on OS/2 */
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| 56 | PERLVARI(Gsh_path, const char *, SH_PATH)/* full path of shell */
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| 57 |
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| 58 | #ifndef PERL_MICRO
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| 59 | /* If Perl has to ignore SIGPFE, this is its saved state.
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| 60 | * See perl.h macros PERL_FPU_INIT and PERL_FPU_{PRE,POST}_EXEC. */
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| 61 | PERLVAR(Gsigfpe_saved, Sighandler_t)
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| 62 | #endif
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| 63 |
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| 64 | /* Restricted hashes placeholder value.
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| 65 | * The contents are never used, only the address. */
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| 66 | PERLVAR(Gsv_placeholder, SV)
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| 67 |
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| 68 | #ifndef PERL_MICRO
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| 69 | PERLVARI(Gcsighandlerp, Sighandler_t, Perl_csighandler) /* Pointer to C-level sighandler */
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| 70 | #endif
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| 71 |
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| 72 | #ifndef PERL_USE_SAFE_PUTENV
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| 73 | PERLVARI(Guse_safe_putenv, int, 1)
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| 74 | #endif
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