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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 |
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21 | #ifdef __GNUC__ |
22 | #define Win32_Winsock |
23 | #endif |
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24 | #include <windows.h> |
25 | #include <string.h> |
26 | |
27 | #include "EXTERN.h" |
28 | #include "perl.h" |
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29 | |
30 | #ifdef PERL_OBJECT |
31 | #define NO_XSLOCKS |
32 | #endif /* PERL_OBJECT */ |
33 | |
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34 | #include "XSUB.h" |
35 | |
36 | #include "dlutils.c" /* SaveError() etc */ |
37 | |
38 | static void |
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39 | dl_private_init(CPERLarg) |
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40 | { |
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41 | (void)dl_generic_private_init(PERL_OBJECT_THIS); |
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42 | } |
43 | |
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44 | /* |
45 | This function assumes the list staticlinkmodules |
46 | will be formed from package names with '::' replaced |
47 | with '/'. Thus Win32::OLE is in the list as Win32/OLE |
48 | */ |
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49 | static int |
50 | dl_static_linked(char *filename) |
51 | { |
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52 | char **p; |
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53 | char* ptr; |
54 | static char subStr[] = "/auto/"; |
55 | char szBuffer[MAX_PATH]; |
56 | |
57 | /* change all the '\\' to '/' */ |
58 | strcpy(szBuffer, filename); |
59 | for(ptr = szBuffer; ptr = strchr(ptr, '\\'); ++ptr) |
60 | *ptr = '/'; |
61 | |
62 | /* delete the file name */ |
63 | ptr = strrchr(szBuffer, '/'); |
64 | if(ptr != NULL) |
65 | *ptr = '\0'; |
66 | |
67 | /* remove leading lib path */ |
68 | ptr = strstr(szBuffer, subStr); |
69 | if(ptr != NULL) |
70 | ptr += sizeof(subStr)-1; |
71 | else |
72 | ptr = szBuffer; |
73 | |
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74 | for (p = staticlinkmodules; *p;p++) { |
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75 | if (strstr(ptr, *p)) return 1; |
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76 | }; |
77 | return 0; |
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78 | } |
79 | |
80 | MODULE = DynaLoader PACKAGE = DynaLoader |
81 | |
82 | BOOT: |
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83 | (void)dl_private_init(PERL_OBJECT_THIS); |
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84 | |
85 | void * |
86 | dl_load_file(filename,flags=0) |
87 | char * filename |
88 | int flags |
89 | PREINIT: |
90 | CODE: |
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91 | DLDEBUG(1,PerlIO_printf(PerlIO_stderr(),"dl_load_file(%s):\n", filename)); |
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92 | if (dl_static_linked(filename) == 0) |
93 | RETVAL = (void*) LoadLibraryEx(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH ) ; |
94 | else |
95 | RETVAL = (void*) GetModuleHandle(NULL); |
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96 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr()," libref=%x\n", RETVAL)); |
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97 | ST(0) = sv_newmortal() ; |
98 | if (RETVAL == NULL) |
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99 | SaveError(PERL_OBJECT_THIS_ "%d",GetLastError()) ; |
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100 | else |
101 | sv_setiv( ST(0), (IV)RETVAL); |
102 | |
103 | |
104 | void * |
105 | dl_find_symbol(libhandle, symbolname) |
106 | void * libhandle |
107 | char * symbolname |
108 | CODE: |
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109 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(),"dl_find_symbol(handle=%x, symbol=%s)\n", |
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110 | libhandle, symbolname)); |
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111 | RETVAL = (void*) GetProcAddress((HINSTANCE) libhandle, symbolname); |
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112 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr()," symbolref = %x\n", RETVAL)); |
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113 | ST(0) = sv_newmortal() ; |
114 | if (RETVAL == NULL) |
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115 | SaveError(PERL_OBJECT_THIS_ "%d",GetLastError()) ; |
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116 | else |
117 | sv_setiv( ST(0), (IV)RETVAL); |
118 | |
119 | |
120 | void |
121 | dl_undef_symbols() |
122 | PPCODE: |
123 | |
124 | |
125 | |
126 | # These functions should not need changing on any platform: |
127 | |
128 | void |
129 | dl_install_xsub(perl_name, symref, filename="$Package") |
130 | char * perl_name |
131 | void * symref |
132 | char * filename |
133 | CODE: |
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134 | DLDEBUG(2,PerlIO_printf(PerlIO_stderr(),"dl_install_xsub(name=%s, symref=%x)\n", |
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135 | perl_name, symref)); |
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136 | ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)(CV* _CPERLarg))symref, filename))); |
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137 | |
138 | |
139 | char * |
140 | dl_error() |
141 | CODE: |
142 | RETVAL = LastError ; |
143 | OUTPUT: |
144 | RETVAL |
145 | |
146 | # end. |