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1 | /* perlvars.h |
| 2 | * |
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3 | * Copyright (C) 1999, 2000, 2001, 2002, by Larry Wall and others |
| eb1102fc |
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 | |
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10 | /****************/ |
| 11 | /* Truly global */ |
| 12 | /****************/ |
| 13 | |
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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 |
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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 |
| 29 | * useithreads) */ |
| 3db8f154 |
30 | #if defined(USE_ITHREADS) |
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31 | PERLVAR(Gthr_key, perl_key) /* key to retrieve per-thread struct */ |
| 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") |
| 36 | PERLVARIC(GNo, char *, "") |
| e3fdf988 |
37 | PERLVARIC(Ghexdigit, char *, "0123456789abcdef0123456789ABCDEF") |
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38 | PERLVARIC(Gpatleave, char *, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}") |
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39 | |
| 40 | /* XXX does anyone even use this? */ |
| 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_ITHREADS) |
| b363f7ed |
44 | PERLVAR(Gmalloc_mutex, perl_mutex) /* Mutex for malloc */ |
| 45 | #endif |
| 534825c4 |
46 | |
| 47 | #if defined(USE_ITHREADS) |
| 48 | PERLVAR(Gop_mutex, perl_mutex) /* Mutex for op refcounting */ |
| 49 | #endif |
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50 | |
| d90a703e |
51 | #ifdef USE_ITHREADS |
| 52 | PERLVAR(Gdollarzero_mutex, perl_mutex) /* Modifying $0 */ |
| 53 | #endif |
| 5c728af0 |
54 | |
| 55 | /* This is constant on most architectures, a global on OS/2 */ |
| 56 | PERLVARI(Gsh_path, 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. |
| 60 | * See perl.h macros PERL_FPU_INIT and PERL_FPU_{PRE,POST}_EXEC. */ |
| 61 | PERLVAR(Gsigfpe_saved, Sighandler_t) |
| 2f42fcb0 |
62 | #endif |
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63 | |
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64 | /* Restricted hashes placeholder value. |
| 65 | * The contents are never used, only the address. */ |
| 66 | PERLVAR(Gsv_placeholder, SV) |
| 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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