| | 1 | /* perlvars.h |
| | 2 | * |
| | 3 | * Copyright (c) 1997-2002, Larry Wall |
| | 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_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_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 | /* Force inclusion of both runops options */ |
| | 52 | PERLVARI(Grunops_std, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_standard)) |
| | 53 | PERLVARI(Grunops_dbg, runops_proc_t, MEMBER_TO_FPTR(Perl_runops_debug)) |
| | 54 | |
| | 55 | /* Hooks to shared SVs and locks. */ |
| | 56 | PERLVARI(Gsharehook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nosharing)) |
| | 57 | PERLVARI(Glockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nolocking)) |
| | 58 | PERLVARI(Gunlockhook, share_proc_t, MEMBER_TO_FPTR(Perl_sv_nounlocking)) |
| | 59 | PERLVARI(Gthreadhook, thrhook_proc_t, MEMBER_TO_FPTR(Perl_nothreadhook)) |
| | 60 | |
| | 61 | /* Stores the PPID */ |
| | 62 | #ifdef THREADS_HAVE_PIDS |
| | 63 | PERLVARI(Gppid, IV, 0) |
| | 64 | #endif |
| | 65 | |
| | 66 | #ifdef USE_ITHREADS |
| | 67 | PERLVAR(Gdollarzero_mutex, perl_mutex) /* Modifying $0 */ |
| | 68 | #endif |
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