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/* dl_cygwin.xs
*
* Platform: Win32 (Windows NT/Windows 95)
* Author: Wei-Yuen Tan (wyt@hip.com)
* Created: A warm day in June, 1995
*
* Modified:
* August 23rd 1995 - rewritten after losing everything when I
* wiped off my NT partition (eek!)
*/
/* Modified from the original dl_win32.xs to work with cygwin
-John Cerney 3/26/97
*/
/* Porting notes:
I merely took Paul's dl_dlopen.xs, took out extraneous stuff and
replaced the appropriate SunOS calls with the corresponding Win32
calls.
*/
#define WIN32_LEAN_AND_MEAN
// Defines from windows needed for this function only. Can't include full
// Cygwin windows headers because of problems with CONTEXT redefinition
// Removed logic to tell not dynamically load static modules. It is assumed that all
// modules are dynamically built. This should be similar to the behavoir on sunOS.
// Leaving in the logic would have required changes to the standard perlmain.c code
//
#include <stdio.h>
//#include <windows.h>
#define LOAD_WITH_ALTERED_SEARCH_PATH (8)
typedef void *HANDLE;
typedef HANDLE HINSTANCE;
#define STDCALL __attribute__ ((stdcall))
typedef int STDCALL (*FARPROC)();
#define MAX_PATH 260
HINSTANCE
STDCALL
LoadLibraryExA(
char* lpLibFileName,
HANDLE hFile,
unsigned int dwFlags
);
unsigned int
STDCALL
GetLastError(
void
);
FARPROC
STDCALL
GetProcAddress(
HINSTANCE hModule,
char* lpProcName
);
#include <string.h>
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "dlutils.c" /* SaveError() etc */
static void
dl_private_init(pTHX)
{
(void)dl_generic_private_init(aTHX);
}
MODULE = DynaLoader PACKAGE = DynaLoader
BOOT:
(void)dl_private_init(aTHX);
void *
dl_load_file(filename,flags=0)
char * filename
int flags
PREINIT:
CODE:
{
char win32_path[MAX_PATH];
cygwin_conv_to_full_win32_path(filename, win32_path);
filename = win32_path;
DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename));
RETVAL = (void*) LoadLibraryExA(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH ) ;
DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%x\n", RETVAL));
ST(0) = sv_newmortal() ;
if (RETVAL == NULL){
SaveError(aTHX_ "%d",GetLastError()) ;
} else {
sv_setiv( ST(0), PTR2IV(RETVAL) );
}
}
void *
dl_find_symbol(libhandle, symbolname)
void * libhandle
char * symbolname
CODE:
DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%s)\n",
libhandle, symbolname));
RETVAL = (void*) GetProcAddress((HINSTANCE) libhandle, symbolname);
DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL));
ST(0) = sv_newmortal() ;
if (RETVAL == NULL)
SaveError(aTHX_ "%d",GetLastError()) ;
else
sv_setiv( ST(0), PTR2IV(RETVAL));
void
dl_undef_symbols()
PPCODE:
# These functions should not need changing on any platform:
void
dl_install_xsub(perl_name, symref, filename="$Package")
char * perl_name
void * symref
char * filename
CODE:
DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n",
perl_name, symref));
ST(0) = sv_2mortal(newRV((SV*)newXS(perl_name,
(void(*)(pTHX_ CV *))symref,
filename)));
char *
dl_error()
CODE:
RETVAL = LastError ;
OUTPUT:
RETVAL
# end.
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