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bf4acbe4 GS |
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 | ||
cdc73a10 | 26 | typedef CFragConnectionID ConnectionID; |
bf4acbe4 | 27 | |
cdc73a10 JH |
28 | typedef struct { |
29 | ConnectionID ** x_connections; | |
30 | } my_cxtx_t; /* this *must* be named my_cxtx_t */ | |
bf4acbe4 | 31 | |
cdc73a10 JH |
32 | #define DL_CXT_EXTRA /* ask for dl_cxtx to be defined in dlutils.c */ |
33 | #include "dlutils.c" /* SaveError() etc */ | |
bf4acbe4 | 34 | |
cdc73a10 | 35 | #define dl_connections (dl_cxtx.x_connections) |
bf4acbe4 | 36 | |
e45b21ab | 37 | static void terminate(pTHX_ void *ptr) |
bf4acbe4 | 38 | { |
cdc73a10 JH |
39 | dMY_CXT; |
40 | int size = GetHandleSize((Handle) dl_connections) / sizeof(ConnectionID); | |
41 | HLock((Handle) dl_connections); | |
bf4acbe4 | 42 | while (size) |
cdc73a10 JH |
43 | CloseConnection(*dl_connections + --size); |
44 | DisposeHandle((Handle) dl_connections); | |
45 | dl_connections = nil; | |
bf4acbe4 GS |
46 | } |
47 | ||
48 | static void | |
49 | dl_private_init(pTHX) | |
50 | { | |
51 | (void)dl_generic_private_init(aTHX); | |
52 | } | |
53 | ||
54 | MODULE = DynaLoader PACKAGE = DynaLoader | |
55 | ||
56 | BOOT: | |
57 | (void)dl_private_init(aTHX); | |
58 | ||
59 | ||
60 | ConnectionID | |
61 | dl_load_file(filename, flags=0) | |
62 | char * filename | |
63 | int flags | |
64 | PREINIT: | |
65 | OSErr err; | |
66 | FSSpec spec; | |
67 | ConnectionID connID; | |
68 | Ptr mainAddr; | |
69 | Str255 errName; | |
70 | CODE: | |
db5fd395 | 71 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
bf4acbe4 GS |
72 | err = GUSIPath2FSp(filename, &spec); |
73 | if (!err) | |
74 | err = | |
75 | GetDiskFragment( | |
76 | &spec, 0, 0, spec.name, kLoadCFrag, &connID, &mainAddr, errName); | |
77 | if (!err) { | |
cdc73a10 JH |
78 | dMY_CXT; |
79 | if (!dl_connections) { | |
80 | dl_connections = (ConnectionID **)NewHandle(0); | |
e45b21ab | 81 | call_atexit(terminate, (void*)0); |
bf4acbe4 | 82 | } |
cdc73a10 | 83 | PtrAndHand((Ptr) &connID, (Handle) dl_connections, sizeof(ConnectionID)); |
bf4acbe4 GS |
84 | RETVAL = connID; |
85 | } else | |
86 | RETVAL = (ConnectionID) 0; | |
db5fd395 | 87 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%d\n", RETVAL)); |
bf4acbe4 GS |
88 | ST(0) = sv_newmortal() ; |
89 | if (err) | |
90 | SaveError(aTHX_ "DynaLoader error [%d, %#s]", err, errName) ; | |
91 | else | |
92 | sv_setiv( ST(0), (IV)RETVAL); | |
93 | ||
94 | void * | |
95 | dl_find_symbol(connID, symbol) | |
96 | ConnectionID connID | |
97 | Str255 symbol | |
98 | CODE: | |
99 | { | |
100 | OSErr err; | |
101 | Ptr symAddr; | |
102 | CFragSymbolClass symClass; | |
db5fd395 | 103 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%#s)\n", |
bf4acbe4 GS |
104 | connID, symbol)); |
105 | err = FindSymbol(connID, symbol, &symAddr, &symClass); | |
106 | if (err) | |
107 | symAddr = (Ptr) 0; | |
108 | RETVAL = (void *) symAddr; | |
db5fd395 | 109 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
bf4acbe4 GS |
110 | ST(0) = sv_newmortal() ; |
111 | if (err) | |
112 | SaveError(aTHX_ "DynaLoader error [%d]!", err) ; | |
113 | else | |
114 | sv_setiv( ST(0), (IV)RETVAL); | |
115 | } | |
116 | ||
117 | void | |
118 | dl_undef_symbols() | |
119 | PPCODE: | |
120 | ||
121 | ||
122 | ||
123 | # These functions should not need changing on any platform: | |
124 | ||
125 | void | |
126 | dl_install_xsub(perl_name, symref, filename="$Package") | |
127 | char * perl_name | |
128 | void * symref | |
d3f5e399 | 129 | const char * filename |
bf4acbe4 | 130 | CODE: |
db5fd395 | 131 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
bf4acbe4 | 132 | perl_name, symref)); |
77004dee NC |
133 | ST(0) = sv_2mortal(newRV((SV*)newXS_flags(perl_name, |
134 | (void(*)(pTHX_ CV *))symref, | |
135 | filename, NULL, | |
136 | XS_DYNAMIC_FILENAME))); | |
bf4acbe4 GS |
137 | |
138 | ||
139 | char * | |
140 | dl_error() | |
141 | CODE: | |
cdc73a10 JH |
142 | dMY_CXT; |
143 | RETVAL = dl_last_error ; | |
bf4acbe4 GS |
144 | OUTPUT: |
145 | RETVAL | |
146 | ||
8c472fc1 CB |
147 | #if defined(USE_ITHREADS) |
148 | ||
149 | void | |
150 | CLONE(...) | |
151 | CODE: | |
152 | MY_CXT_CLONE; | |
153 | ||
154 | /* MY_CXT_CLONE just does a memcpy on the whole structure, so to avoid | |
155 | * using Perl variables that belong to another thread, we create our | |
156 | * own for this thread. | |
157 | */ | |
158 | MY_CXT.x_dl_last_error = newSVpvn("", 0); | |
159 | ||
160 | #endif | |
161 | ||
bf4acbe4 | 162 | # end. |