ext/Win32CORE/Win32CORE.c

   1 /*    Win32CORE.c
   2  *
   3  *    Copyright (C) 2007 by Larry Wall and others
   4  *
   5  *    You may distribute under the terms of either the GNU General Public
   6  *    License or the Artistic License, as specified in the README file.
   7  *
   8  */
   9
  10 #define WIN32_LEAN_AND_MEAN
  11 #include <windows.h>
  12
  13 #if defined(__CYGWIN__) && !defined(USEIMPORTLIB)
  14   #undef WIN32
  15 #endif
  16 #define PERL_NO_GET_CONTEXT
  17 #include "EXTERN.h"
  18 #if defined(__CYGWIN__) && !defined(USEIMPORTLIB)
  19   #define EXTCONST extern const
  20 #endif
  21 #include "perl.h"
  22 #include "XSUB.h"
  23
  24
  25 XS(w32_CORE_all){
  26     DWORD err = GetLastError();
  27     /* capture the XSANY value before Perl_load_module, the CV's any member will
  28      * be overwritten by Perl_load_module and subsequent newXSes or pure perl
  29      * subs
  30      */
  31     const char *function  = (const char *) XSANY.any_ptr;
  32     Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, newSVpvn("Win32",5), newSVnv(0.27));
  33     SetLastError(err);
  34     /* mark and SP from caller are passed through unchanged */
  35     call_pv(function, GIMME_V);
  36 }
  37
  38 XS_EXTERNAL(boot_Win32CORE)
  39 {
  40     /* This function only exists because writemain.SH, lib/ExtUtils/Embed.pm
  41      * and win32/buildext.pl will all generate references to it.  The function
  42      * should never be called though, as Win32CORE.pm doesn't use DynaLoader.
  43      */
  44 }
  45 #if !defined(__CYGWIN__) || defined(USEIMPORTLIB)
  46 __declspec(dllexport)
  47 #endif
  48 void
  49 init_Win32CORE(pTHX)
  50 {
  51     /* This function is called from init_os_extras().  The Perl interpreter
  52      * is not yet fully initialized, so don't do anything fancy in here.
  53      */
  54
  55     static const struct {
  56         char Win32__GetCwd [sizeof("Win32::GetCwd")];
  57         char Win32__SetCwd [sizeof("Win32::SetCwd")];
  58         char Win32__GetNextAvailDrive [sizeof("Win32::GetNextAvailDrive")];
  59         char Win32__GetLastError [sizeof("Win32::GetLastError")];
  60         char Win32__SetLastError [sizeof("Win32::SetLastError")];
  61         char Win32__LoginName [sizeof("Win32::LoginName")];
  62         char Win32__NodeName [sizeof("Win32::NodeName")];
  63         char Win32__DomainName [sizeof("Win32::DomainName")];
  64         char Win32__FsType [sizeof("Win32::FsType")];
  65         char Win32__GetOSVersion [sizeof("Win32::GetOSVersion")];
  66         char Win32__IsWinNT [sizeof("Win32::IsWinNT")];
  67         char Win32__IsWin95 [sizeof("Win32::IsWin95")];
  68         char Win32__FormatMessage [sizeof("Win32::FormatMessage")];
  69         char Win32__Spawn [sizeof("Win32::Spawn")];
  70         char Win32__GetTickCount [sizeof("Win32::GetTickCount")];
  71         char Win32__GetShortPathName [sizeof("Win32::GetShortPathName")];
  72         char Win32__GetFullPathName [sizeof("Win32::GetFullPathName")];
  73         char Win32__GetLongPathName [sizeof("Win32::GetLongPathName")];
  74         char Win32__CopyFile [sizeof("Win32::CopyFile")];
  75         char Win32__Sleep [sizeof("Win32::Sleep")];
  76     } fnname_table = {
  77         "Win32::GetCwd",
  78         "Win32::SetCwd",
  79         "Win32::GetNextAvailDrive",
  80         "Win32::GetLastError",
  81         "Win32::SetLastError",
  82         "Win32::LoginName",
  83         "Win32::NodeName",
  84         "Win32::DomainName",
  85         "Win32::FsType",
  86         "Win32::GetOSVersion",
  87         "Win32::IsWinNT",
  88         "Win32::IsWin95",
  89         "Win32::FormatMessage",
  90         "Win32::Spawn",
  91         "Win32::GetTickCount",
  92         "Win32::GetShortPathName",
  93         "Win32::GetFullPathName",
  94         "Win32::GetLongPathName",
  95         "Win32::CopyFile",
  96         "Win32::Sleep"
  97     };
  98
  99     static const unsigned char fnname_lens [] = {
 100         sizeof("Win32::GetCwd"),
 101         sizeof("Win32::SetCwd"),
 102         sizeof("Win32::GetNextAvailDrive"),
 103         sizeof("Win32::GetLastError"),
 104         sizeof("Win32::SetLastError"),
 105         sizeof("Win32::LoginName"),
 106         sizeof("Win32::NodeName"),
 107         sizeof("Win32::DomainName"),
 108         sizeof("Win32::FsType"),
 109         sizeof("Win32::GetOSVersion"),
 110         sizeof("Win32::IsWinNT"),
 111         sizeof("Win32::IsWin95"),
 112         sizeof("Win32::FormatMessage"),
 113         sizeof("Win32::Spawn"),
 114         sizeof("Win32::GetTickCount"),
 115         sizeof("Win32::GetShortPathName"),
 116         sizeof("Win32::GetFullPathName"),
 117         sizeof("Win32::GetLongPathName"),
 118         sizeof("Win32::CopyFile"),
 119         sizeof("Win32::Sleep")
 120     };
 121     const unsigned char * len = (const unsigned char *)&fnname_lens;
 122     const char * function = (char *)&fnname_table;
 123     while (function < (char *)&fnname_table + sizeof(fnname_table)) {
 124         const char * const file = __FILE__;
 125         CV * const cv = newXS(function, w32_CORE_all, file);
 126         XSANY.any_ptr = (void *)function;
 127         function += *len++;
 128     }
 129
 130
 131     /* Don't forward Win32::SetChildShowWindow().  It accesses the internal variable
 132      * w32_showwindow in thread_intern and is therefore not implemented in Win32.xs.
 133      */
 134     /* newXS("Win32::SetChildShowWindow", w32_SetChildShowWindow, file); */
 135 }