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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 | |
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27 | #define PERL_NO_GET_CONTEXT |
28 | |
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29 | #include "EXTERN.h" |
30 | #include "perl.h" |
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31 | #include "win32.h" |
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32 | |
33 | #ifdef PERL_OBJECT |
34 | #define NO_XSLOCKS |
35 | #endif /* PERL_OBJECT */ |
36 | |
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37 | #include "XSUB.h" |
38 | |
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39 | static SV *error_sv; |
40 | |
41 | static char * |
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42 | OS_Error_String(pTHXo) |
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43 | { |
44 | DWORD err = GetLastError(); |
45 | STRLEN len; |
46 | if (!error_sv) |
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47 | error_sv = newSVpvn("",0); |
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48 | PerlProc_GetOSError(error_sv,err); |
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49 | return SvPV(error_sv,len); |
50 | } |
51 | |
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52 | #include "dlutils.c" /* SaveError() etc */ |
53 | |
54 | static void |
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55 | dl_private_init(pTHXo) |
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56 | { |
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57 | (void)dl_generic_private_init(aTHXo); |
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58 | } |
59 | |
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60 | /* |
61 | This function assumes the list staticlinkmodules |
62 | will be formed from package names with '::' replaced |
63 | with '/'. Thus Win32::OLE is in the list as Win32/OLE |
64 | */ |
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65 | static int |
66 | dl_static_linked(char *filename) |
67 | { |
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68 | char **p; |
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69 | char* ptr; |
70 | static char subStr[] = "/auto/"; |
71 | char szBuffer[MAX_PATH]; |
72 | |
73 | /* change all the '\\' to '/' */ |
74 | strcpy(szBuffer, filename); |
75 | for(ptr = szBuffer; ptr = strchr(ptr, '\\'); ++ptr) |
76 | *ptr = '/'; |
77 | |
78 | /* delete the file name */ |
79 | ptr = strrchr(szBuffer, '/'); |
80 | if(ptr != NULL) |
81 | *ptr = '\0'; |
82 | |
83 | /* remove leading lib path */ |
84 | ptr = strstr(szBuffer, subStr); |
85 | if(ptr != NULL) |
86 | ptr += sizeof(subStr)-1; |
87 | else |
88 | ptr = szBuffer; |
89 | |
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90 | for (p = staticlinkmodules; *p;p++) { |
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91 | if (strstr(ptr, *p)) return 1; |
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92 | }; |
93 | return 0; |
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94 | } |
95 | |
96 | MODULE = DynaLoader PACKAGE = DynaLoader |
97 | |
98 | BOOT: |
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99 | (void)dl_private_init(aTHXo); |
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100 | |
101 | void * |
102 | dl_load_file(filename,flags=0) |
103 | char * filename |
104 | int flags |
105 | PREINIT: |
106 | CODE: |
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107 | { |
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108 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
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109 | if (dl_static_linked(filename) == 0) { |
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110 | RETVAL = PerlProc_DynaLoad(filename); |
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111 | } |
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112 | else |
113 | RETVAL = (void*) GetModuleHandle(NULL); |
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114 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%x\n", RETVAL)); |
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115 | ST(0) = sv_newmortal() ; |
116 | if (RETVAL == NULL) |
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117 | SaveError(aTHXo_ "load_file:%s", |
118 | OS_Error_String(aTHXo)) ; |
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119 | else |
120 | sv_setiv( ST(0), (IV)RETVAL); |
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121 | } |
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122 | |
123 | void * |
124 | dl_find_symbol(libhandle, symbolname) |
125 | void * libhandle |
126 | char * symbolname |
127 | CODE: |
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128 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%s)\n", |
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129 | libhandle, symbolname)); |
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130 | RETVAL = (void*) GetProcAddress((HINSTANCE) libhandle, symbolname); |
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131 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
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132 | ST(0) = sv_newmortal() ; |
133 | if (RETVAL == NULL) |
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134 | SaveError(aTHXo_ "find_symbol:%s", |
135 | OS_Error_String(aTHXo)) ; |
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136 | else |
137 | sv_setiv( ST(0), (IV)RETVAL); |
138 | |
139 | |
140 | void |
141 | dl_undef_symbols() |
142 | PPCODE: |
143 | |
144 | |
145 | |
146 | # These functions should not need changing on any platform: |
147 | |
148 | void |
149 | dl_install_xsub(perl_name, symref, filename="$Package") |
150 | char * perl_name |
151 | void * symref |
152 | char * filename |
153 | CODE: |
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154 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
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155 | perl_name, symref)); |
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156 | ST(0) = sv_2mortal(newRV((SV*)newXS(perl_name, |
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157 | (void(*)(pTHXo_ CV *))symref, |
4f63d024 |
158 | filename))); |
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159 | |
160 | |
161 | char * |
162 | dl_error() |
163 | CODE: |
164 | RETVAL = LastError ; |
165 | OUTPUT: |
166 | RETVAL |
167 | |
168 | # end. |