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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 | |
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26 | typedef CFragConnectionID ConnectionID; |
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27 | |
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28 | typedef struct { |
29 | ConnectionID ** x_connections; |
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 */ |
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 | |
37 | static void terminate(void) |
38 | { |
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39 | dTHX; |
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40 | dMY_CXT; |
41 | int size = GetHandleSize((Handle) dl_connections) / sizeof(ConnectionID); |
42 | HLock((Handle) dl_connections); |
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43 | while (size) |
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44 | CloseConnection(*dl_connections + --size); |
45 | DisposeHandle((Handle) dl_connections); |
46 | dl_connections = nil; |
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47 | } |
48 | |
49 | static void |
50 | dl_private_init(pTHX) |
51 | { |
52 | (void)dl_generic_private_init(aTHX); |
53 | } |
54 | |
55 | MODULE = DynaLoader PACKAGE = DynaLoader |
56 | |
57 | BOOT: |
58 | (void)dl_private_init(aTHX); |
59 | |
60 | |
61 | ConnectionID |
62 | dl_load_file(filename, flags=0) |
63 | char * filename |
64 | int flags |
65 | PREINIT: |
66 | OSErr err; |
67 | FSSpec spec; |
68 | ConnectionID connID; |
69 | Ptr mainAddr; |
70 | Str255 errName; |
71 | CODE: |
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72 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
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73 | err = GUSIPath2FSp(filename, &spec); |
74 | if (!err) |
75 | err = |
76 | GetDiskFragment( |
77 | &spec, 0, 0, spec.name, kLoadCFrag, &connID, &mainAddr, errName); |
78 | if (!err) { |
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79 | dMY_CXT; |
80 | if (!dl_connections) { |
81 | dl_connections = (ConnectionID **)NewHandle(0); |
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82 | atexit(terminate); |
83 | } |
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84 | PtrAndHand((Ptr) &connID, (Handle) dl_connections, sizeof(ConnectionID)); |
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85 | RETVAL = connID; |
86 | } else |
87 | RETVAL = (ConnectionID) 0; |
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88 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%d\n", RETVAL)); |
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89 | ST(0) = sv_newmortal() ; |
90 | if (err) |
91 | SaveError(aTHX_ "DynaLoader error [%d, %#s]", err, errName) ; |
92 | else |
93 | sv_setiv( ST(0), (IV)RETVAL); |
94 | |
95 | void * |
96 | dl_find_symbol(connID, symbol) |
97 | ConnectionID connID |
98 | Str255 symbol |
99 | CODE: |
100 | { |
101 | OSErr err; |
102 | Ptr symAddr; |
103 | CFragSymbolClass symClass; |
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104 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%#s)\n", |
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105 | connID, symbol)); |
106 | err = FindSymbol(connID, symbol, &symAddr, &symClass); |
107 | if (err) |
108 | symAddr = (Ptr) 0; |
109 | RETVAL = (void *) symAddr; |
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110 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
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111 | ST(0) = sv_newmortal() ; |
112 | if (err) |
113 | SaveError(aTHX_ "DynaLoader error [%d]!", err) ; |
114 | else |
115 | sv_setiv( ST(0), (IV)RETVAL); |
116 | } |
117 | |
118 | void |
119 | dl_undef_symbols() |
120 | PPCODE: |
121 | |
122 | |
123 | |
124 | # These functions should not need changing on any platform: |
125 | |
126 | void |
127 | dl_install_xsub(perl_name, symref, filename="$Package") |
128 | char * perl_name |
129 | void * symref |
130 | char * filename |
131 | CODE: |
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132 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
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133 | perl_name, symref)); |
134 | ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename))); |
135 | |
136 | |
137 | char * |
138 | dl_error() |
139 | CODE: |
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140 | dMY_CXT; |
141 | RETVAL = dl_last_error ; |
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142 | OUTPUT: |
143 | RETVAL |
144 | |
145 | # end. |