| 1 | /* dl_mac.xs
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| 2 | *
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| 3 | * Platform: Macintosh CFM
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| 4 | * Author: Matthias Neeracher <[email protected]>
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| 5 | * Adapted from dl_dlopen.xs reference implementation by
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| 6 | * Paul Marquess ([email protected])
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| 7 | * $Log: dl_mac.xs,v $
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| 8 | * Revision 1.3 1998/04/07 01:47:24 neeri
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| 9 | * MacPerl 5.2.0r4b1
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| 10 | *
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| 11 | * Revision 1.2 1997/08/08 16:39:18 neeri
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| 12 | * MacPerl 5.1.4b1 + time() fix
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| 13 | *
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| 14 | * Revision 1.1 1997/04/07 20:48:23 neeri
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| 15 | * Synchronized with MacPerl 5.1.4a1
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| 16 | *
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| 17 | */
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| 18 |
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| 19 | #define MAC_CONTEXT
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| 20 | #include "EXTERN.h"
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| 21 | #include "perl.h"
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| 22 | #include "XSUB.h"
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| 23 |
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| 24 | #include <CodeFragments.h>
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| 25 |
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| 26 | typedef CFragConnectionID ConnectionID;
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| 27 |
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| 28 | typedef struct {
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| 29 | ConnectionID ** x_connections;
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| 30 | } my_cxtx_t; /* this *must* be named my_cxtx_t */
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| 31 |
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| 32 | #define DL_CXT_EXTRA /* ask for dl_cxtx to be defined in dlutils.c */
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| 33 | #include "dlutils.c" /* SaveError() etc */
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| 34 |
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| 35 | #define dl_connections (dl_cxtx.x_connections)
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| 36 |
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| 37 | static void terminate(pTHX_ void *ptr)
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| 38 | {
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| 39 | dMY_CXT;
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| 40 | int size = GetHandleSize((Handle) dl_connections) / sizeof(ConnectionID);
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| 41 | HLock((Handle) dl_connections);
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| 42 | while (size)
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| 43 | CloseConnection(*dl_connections + --size);
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| 44 | DisposeHandle((Handle) dl_connections);
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| 45 | dl_connections = nil;
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| 46 | }
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| 47 |
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| 48 | static void
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| 49 | dl_private_init(pTHX)
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| 50 | {
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| 51 | (void)dl_generic_private_init(aTHX);
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| 52 | }
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| 53 |
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| 54 | MODULE = DynaLoader PACKAGE = DynaLoader
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| 55 |
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| 56 | BOOT:
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| 57 | (void)dl_private_init(aTHX);
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| 58 |
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| 59 |
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| 60 | ConnectionID
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| 61 | dl_load_file(filename, flags=0)
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| 62 | char * filename
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| 63 | int flags
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| 64 | PREINIT:
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| 65 | OSErr err;
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| 66 | FSSpec spec;
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| 67 | ConnectionID connID;
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| 68 | Ptr mainAddr;
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| 69 | Str255 errName;
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| 70 | CODE:
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| 71 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename));
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| 72 | err = GUSIPath2FSp(filename, &spec);
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| 73 | if (!err)
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| 74 | err =
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| 75 | GetDiskFragment(
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| 76 | &spec, 0, 0, spec.name, kLoadCFrag, &connID, &mainAddr, errName);
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| 77 | if (!err) {
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| 78 | dMY_CXT;
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| 79 | if (!dl_connections) {
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| 80 | dl_connections = (ConnectionID **)NewHandle(0);
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| 81 | call_atexit(terminate, (void*)0);
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| 82 | }
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| 83 | PtrAndHand((Ptr) &connID, (Handle) dl_connections, sizeof(ConnectionID));
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| 84 | RETVAL = connID;
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| 85 | } else
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| 86 | RETVAL = (ConnectionID) 0;
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| 87 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%d\n", RETVAL));
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| 88 | ST(0) = sv_newmortal() ;
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| 89 | if (err)
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| 90 | SaveError(aTHX_ "DynaLoader error [%d, %#s]", err, errName) ;
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| 91 | else
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| 92 | sv_setiv( ST(0), (IV)RETVAL);
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| 93 |
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| 94 | void *
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| 95 | dl_find_symbol(connID, symbol)
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| 96 | ConnectionID connID
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| 97 | Str255 symbol
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| 98 | CODE:
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| 99 | {
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| 100 | OSErr err;
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| 101 | Ptr symAddr;
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| 102 | CFragSymbolClass symClass;
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| 103 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%#s)\n",
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| 104 | connID, symbol));
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| 105 | err = FindSymbol(connID, symbol, &symAddr, &symClass);
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| 106 | if (err)
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| 107 | symAddr = (Ptr) 0;
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| 108 | RETVAL = (void *) symAddr;
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| 109 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL));
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| 110 | ST(0) = sv_newmortal() ;
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| 111 | if (err)
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| 112 | SaveError(aTHX_ "DynaLoader error [%d]!", err) ;
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| 113 | else
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| 114 | sv_setiv( ST(0), (IV)RETVAL);
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| 115 | }
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| 116 |
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| 117 | void
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| 118 | dl_undef_symbols()
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| 119 | PPCODE:
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| 120 |
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| 121 |
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| 122 |
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| 123 | # These functions should not need changing on any platform:
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| 124 |
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| 125 | void
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| 126 | dl_install_xsub(perl_name, symref, filename="$Package")
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| 127 | char * perl_name
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| 128 | void * symref
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| 129 | char * filename
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| 130 | CODE:
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| 131 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n",
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| 132 | perl_name, symref));
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| 133 | ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename)));
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| 134 |
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| 135 |
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| 136 | char *
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| 137 | dl_error()
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| 138 | CODE:
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| 139 | dMY_CXT;
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| 140 | RETVAL = dl_last_error ;
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| 141 | OUTPUT:
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| 142 | RETVAL
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| 143 |
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| 144 | # end.
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