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1 | /* dl_mac.xs |
| 2 | * |
| 3 | * Platform: Macintosh CFM |
| 4 | * Author: Matthias Neeracher <neeri@iis.ee.ethz.ch> |
| 5 | * Adapted from dl_dlopen.xs reference implementation by |
| 6 | * Paul Marquess (pmarquess@bfsec.bt.co.uk) |
| 7 | * $Log: dl_mac.xs,v $ |
| 8 | * Revision 1.3 1998/04/07 01:47:24 neeri |
| 9 | * MacPerl 5.2.0r4b1 |
| 10 | * |
| 11 | * Revision 1.2 1997/08/08 16:39:18 neeri |
| 12 | * MacPerl 5.1.4b1 + time() fix |
| 13 | * |
| 14 | * Revision 1.1 1997/04/07 20:48:23 neeri |
| 15 | * Synchronized with MacPerl 5.1.4a1 |
| 16 | * |
| 17 | */ |
| 18 | |
| 19 | #define MAC_CONTEXT |
| 20 | #include "EXTERN.h" |
| 21 | #include "perl.h" |
| 22 | #include "XSUB.h" |
| 23 | |
| 24 | #include <CodeFragments.h> |
| 25 | |
| 26 | |
| 27 | #include "dlutils.c" /* SaveError() etc */ |
| 28 | |
| 29 | typedef CFragConnectionID ConnectionID; |
| 30 | |
| 31 | static ConnectionID ** connections; |
| 32 | |
| 33 | static void terminate(void) |
| 34 | { |
| 35 | int size = GetHandleSize((Handle) connections) / sizeof(ConnectionID); |
| 36 | HLock((Handle) connections); |
| 37 | while (size) |
| 38 | CloseConnection(*connections + --size); |
| 39 | DisposeHandle((Handle) connections); |
| 40 | connections = nil; |
| 41 | } |
| 42 | |
| 43 | static void |
| 44 | dl_private_init(pTHX) |
| 45 | { |
| 46 | (void)dl_generic_private_init(aTHX); |
| 47 | } |
| 48 | |
| 49 | MODULE = DynaLoader PACKAGE = DynaLoader |
| 50 | |
| 51 | BOOT: |
| 52 | (void)dl_private_init(aTHX); |
| 53 | |
| 54 | |
| 55 | ConnectionID |
| 56 | dl_load_file(filename, flags=0) |
| 57 | char * filename |
| 58 | int flags |
| 59 | PREINIT: |
| 60 | OSErr err; |
| 61 | FSSpec spec; |
| 62 | ConnectionID connID; |
| 63 | Ptr mainAddr; |
| 64 | Str255 errName; |
| 65 | CODE: |
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66 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
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67 | err = GUSIPath2FSp(filename, &spec); |
| 68 | if (!err) |
| 69 | err = |
| 70 | GetDiskFragment( |
| 71 | &spec, 0, 0, spec.name, kLoadCFrag, &connID, &mainAddr, errName); |
| 72 | if (!err) { |
| 73 | if (!connections) { |
| 74 | connections = (ConnectionID **)NewHandle(0); |
| 75 | atexit(terminate); |
| 76 | } |
| 77 | PtrAndHand((Ptr) &connID, (Handle) connections, sizeof(ConnectionID)); |
| 78 | RETVAL = connID; |
| 79 | } else |
| 80 | RETVAL = (ConnectionID) 0; |
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81 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%d\n", RETVAL)); |
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82 | ST(0) = sv_newmortal() ; |
| 83 | if (err) |
| 84 | SaveError(aTHX_ "DynaLoader error [%d, %#s]", err, errName) ; |
| 85 | else |
| 86 | sv_setiv( ST(0), (IV)RETVAL); |
| 87 | |
| 88 | void * |
| 89 | dl_find_symbol(connID, symbol) |
| 90 | ConnectionID connID |
| 91 | Str255 symbol |
| 92 | CODE: |
| 93 | { |
| 94 | OSErr err; |
| 95 | Ptr symAddr; |
| 96 | CFragSymbolClass symClass; |
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97 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%#s)\n", |
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98 | connID, symbol)); |
| 99 | err = FindSymbol(connID, symbol, &symAddr, &symClass); |
| 100 | if (err) |
| 101 | symAddr = (Ptr) 0; |
| 102 | RETVAL = (void *) symAddr; |
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103 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
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104 | ST(0) = sv_newmortal() ; |
| 105 | if (err) |
| 106 | SaveError(aTHX_ "DynaLoader error [%d]!", err) ; |
| 107 | else |
| 108 | sv_setiv( ST(0), (IV)RETVAL); |
| 109 | } |
| 110 | |
| 111 | void |
| 112 | dl_undef_symbols() |
| 113 | PPCODE: |
| 114 | |
| 115 | |
| 116 | |
| 117 | # These functions should not need changing on any platform: |
| 118 | |
| 119 | void |
| 120 | dl_install_xsub(perl_name, symref, filename="$Package") |
| 121 | char * perl_name |
| 122 | void * symref |
| 123 | char * filename |
| 124 | CODE: |
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125 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
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126 | perl_name, symref)); |
| 127 | ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename))); |
| 128 | |
| 129 | |
| 130 | char * |
| 131 | dl_error() |
| 132 | CODE: |
| 133 | RETVAL = LastError ; |
| 134 | OUTPUT: |
| 135 | RETVAL |
| 136 | |
| 137 | # end. |
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