154 lines
3.5 KiB
Plaintext
154 lines
3.5 KiB
Plaintext
/* dl_cygwin32.xs
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*
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* Platform: Win32 (Windows NT/Windows 95)
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* Author: Wei-Yuen Tan (wyt@hip.com)
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* Created: A warm day in June, 1995
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*
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* Modified:
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* August 23rd 1995 - rewritten after losing everything when I
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* wiped off my NT partition (eek!)
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*/
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/* Modified from the original dl_win32.xs to work with cygwin32
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-John Cerney 3/26/97
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*/
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/* Porting notes:
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I merely took Paul's dl_dlopen.xs, took out extraneous stuff and
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replaced the appropriate SunOS calls with the corresponding Win32
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calls.
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*/
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#define WIN32_LEAN_AND_MEAN
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// Defines from windows needed for this function only. Can't include full
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// Cygwin32 windows headers because of problems with CONTEXT redefinition
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// Removed logic to tell not dynamically load static modules. It is assumed that all
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// modules are dynamically built. This should be similar to the behavoir on sunOS.
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// Leaving in the logic would have required changes to the standard perlmain.c code
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//
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// // Includes call a dll function to initialize it's impure_ptr.
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#include <stdio.h>
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void (*impure_setupptr)(struct _reent *); // pointer to the impure_setup routine
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//#include <windows.h>
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#define LOAD_WITH_ALTERED_SEARCH_PATH (8)
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typedef void *HANDLE;
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typedef HANDLE HINSTANCE;
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#define STDCALL __attribute__ ((stdcall))
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typedef int STDCALL (*FARPROC)();
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HINSTANCE
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STDCALL
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LoadLibraryExA(
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char* lpLibFileName,
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HANDLE hFile,
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unsigned int dwFlags
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);
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unsigned int
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STDCALL
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GetLastError(
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void
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);
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FARPROC
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STDCALL
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GetProcAddress(
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HINSTANCE hModule,
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char* lpProcName
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);
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#include <string.h>
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#include "EXTERN.h"
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#include "perl.h"
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#include "XSUB.h"
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#include "dlutils.c" /* SaveError() etc */
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static void
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dl_private_init()
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{
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(void)dl_generic_private_init();
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}
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MODULE = DynaLoader PACKAGE = DynaLoader
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BOOT:
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(void)dl_private_init();
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void *
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dl_load_file(filename,flags=0)
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char * filename
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int flags
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PREINIT:
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CODE:
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DLDEBUG(1,fprintf(stderr,"dl_load_file(%s):\n", filename));
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RETVAL = (void*) LoadLibraryExA(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH ) ;
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DLDEBUG(2,fprintf(stderr," libref=%x\n", RETVAL));
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ST(0) = sv_newmortal() ;
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if (RETVAL == NULL){
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SaveError("%d",GetLastError()) ;
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}
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else{
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// setup the dll's impure_ptr:
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impure_setupptr = GetProcAddress(RETVAL, "impure_setup");
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if( impure_setupptr == NULL){
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printf(
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"Cygwin32 dynaloader error: could not load impure_setup symbol\n");
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RETVAL = NULL;
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}
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else{
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// setup the DLLs impure_ptr:
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(*impure_setupptr)(_impure_ptr);
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sv_setiv( ST(0), (IV)RETVAL);
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}
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}
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void *
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dl_find_symbol(libhandle, symbolname)
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void * libhandle
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char * symbolname
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CODE:
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DLDEBUG(2,fprintf(stderr,"dl_find_symbol(handle=%x, symbol=%s)\n",
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libhandle, symbolname));
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RETVAL = (void*) GetProcAddress((HINSTANCE) libhandle, symbolname);
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DLDEBUG(2,fprintf(stderr," symbolref = %x\n", RETVAL));
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ST(0) = sv_newmortal() ;
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if (RETVAL == NULL)
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SaveError("%d",GetLastError()) ;
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else
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sv_setiv( ST(0), (IV)RETVAL);
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void
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dl_undef_symbols()
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PPCODE:
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# These functions should not need changing on any platform:
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void
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dl_install_xsub(perl_name, symref, filename="$Package")
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char * perl_name
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void * symref
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char * filename
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CODE:
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DLDEBUG(2,fprintf(stderr,"dl_install_xsub(name=%s, symref=%x)\n",
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perl_name, symref));
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ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename)));
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char *
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dl_error()
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CODE:
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RETVAL = LastError ;
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OUTPUT:
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RETVAL
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# end.
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