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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. |