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1 | /* dl_win32.xs |
2 | * |
3 | * Platform: Win32 (Windows NT/Windows 95) |
4 | * Author: Wei-Yuen Tan (wyt@hip.com) |
5 | * Created: A warm day in June, 1995 |
6 | * |
7 | * Modified: |
8 | * August 23rd 1995 - rewritten after losing everything when I |
9 | * wiped off my NT partition (eek!) |
10 | */ |
11 | |
12 | /* Porting notes: |
13 | |
14 | I merely took Paul's dl_dlopen.xs, took out extraneous stuff and |
15 | replaced the appropriate SunOS calls with the corresponding Win32 |
16 | calls. |
17 | |
18 | */ |
19 | |
20 | #define WIN32_LEAN_AND_MEAN |
21 | #ifdef __GNUC__ |
22 | #define Win32_Winsock |
23 | #endif |
24 | #include <windows.h> |
25 | #include <string.h> |
26 | |
27 | #define PERL_NO_GET_CONTEXT |
28 | |
29 | #include "EXTERN.h" |
30 | #include "perl.h" |
31 | #include "win32.h" |
32 | |
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33 | #include "XSUB.h" |
34 | |
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35 | typedef struct { |
36 | SV * x_error_sv; |
37 | } my_cxtx_t; /* this *must* be named my_cxtx_t */ |
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38 | |
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39 | #define DL_CXT_EXTRA /* ask for dl_cxtx to be defined in dlutils.c */ |
40 | #include "dlutils.c" /* SaveError() etc */ |
41 | |
42 | #define dl_error_sv (dl_cxtx.x_error_sv) |
43 | |
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44 | static char * |
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45 | OS_Error_String(pTHX) |
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46 | { |
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47 | dMY_CXT; |
48 | DWORD err = GetLastError(); |
49 | STRLEN len; |
50 | if (!dl_error_sv) |
51 | dl_error_sv = newSVpvn("",0); |
52 | PerlProc_GetOSError(dl_error_sv,err); |
53 | return SvPV(dl_error_sv,len); |
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54 | } |
55 | |
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56 | static void |
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57 | dl_private_init(pTHX) |
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58 | { |
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59 | (void)dl_generic_private_init(aTHX); |
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60 | } |
61 | |
62 | /* |
63 | This function assumes the list staticlinkmodules |
64 | will be formed from package names with '::' replaced |
65 | with '/'. Thus Win32::OLE is in the list as Win32/OLE |
66 | */ |
67 | static int |
68 | dl_static_linked(char *filename) |
69 | { |
70 | char **p; |
71 | char* ptr; |
72 | static char subStr[] = "/auto/"; |
73 | char szBuffer[MAX_PATH]; |
74 | |
75 | /* change all the '\\' to '/' */ |
76 | strcpy(szBuffer, filename); |
77 | for(ptr = szBuffer; ptr = strchr(ptr, '\\'); ++ptr) |
78 | *ptr = '/'; |
79 | |
80 | /* delete the file name */ |
81 | ptr = strrchr(szBuffer, '/'); |
82 | if(ptr != NULL) |
83 | *ptr = '\0'; |
84 | |
85 | /* remove leading lib path */ |
86 | ptr = strstr(szBuffer, subStr); |
87 | if(ptr != NULL) |
88 | ptr += sizeof(subStr)-1; |
89 | else |
90 | ptr = szBuffer; |
91 | |
92 | for (p = staticlinkmodules; *p;p++) { |
93 | if (strstr(ptr, *p)) return 1; |
94 | }; |
95 | return 0; |
96 | } |
97 | |
98 | MODULE = DynaLoader PACKAGE = DynaLoader |
99 | |
100 | BOOT: |
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101 | (void)dl_private_init(aTHX); |
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102 | |
103 | void * |
104 | dl_load_file(filename,flags=0) |
105 | char * filename |
106 | int flags |
107 | PREINIT: |
108 | CODE: |
109 | { |
110 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
111 | if (dl_static_linked(filename) == 0) { |
112 | RETVAL = PerlProc_DynaLoad(filename); |
113 | } |
114 | else |
115 | RETVAL = (void*) XCEGetModuleHandleA(NULL); |
116 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%x\n", RETVAL)); |
117 | ST(0) = sv_newmortal() ; |
118 | if (RETVAL == NULL) |
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119 | SaveError(aTHX_ "load_file:%s", |
120 | OS_Error_String(aTHX)) ; |
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121 | else |
122 | sv_setiv( ST(0), (IV)RETVAL); |
123 | } |
124 | |
125 | void * |
126 | dl_find_symbol(libhandle, symbolname) |
127 | void * libhandle |
128 | char * symbolname |
129 | CODE: |
130 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%s)\n", |
131 | libhandle, symbolname)); |
132 | RETVAL = (void*) XCEGetProcAddressA((HINSTANCE) libhandle, symbolname); |
133 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
134 | ST(0) = sv_newmortal() ; |
135 | if (RETVAL == NULL) |
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136 | SaveError(aTHX_ "find_symbol:%s", |
137 | OS_Error_String(aTHX)) ; |
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138 | else |
139 | sv_setiv( ST(0), (IV)RETVAL); |
140 | |
141 | |
142 | void |
143 | dl_undef_symbols() |
144 | PPCODE: |
145 | |
146 | |
147 | |
148 | # These functions should not need changing on any platform: |
149 | |
150 | void |
151 | dl_install_xsub(perl_name, symref, filename="$Package") |
152 | char * perl_name |
153 | void * symref |
154 | char * filename |
155 | CODE: |
156 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
157 | perl_name, symref)); |
158 | ST(0) = sv_2mortal(newRV((SV*)newXS(perl_name, |
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159 | (void(*)(pTHX_ CV *))symref, |
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160 | filename))); |
161 | |
162 | |
163 | char * |
164 | dl_error() |
165 | CODE: |
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166 | dMY_CXT; |
167 | RETVAL = dl_last_error; |
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168 | OUTPUT: |
169 | RETVAL |
170 | |
171 | # end. |