root/src/dl_win.c

DEFINITIONS

1. dl_open
2. dl_error
3. dl_sym
4. dl_close

   1 /*
   2  * dl_win.c - windows LoadLibrary interface
   3  *
   4  *   Copyright (c) 2000-2003 Shiro Kawai, All rights reserved.
   5  * 
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  * 
  10  *   1. Redistributions of source code must retain the above copyright
  11  *      notice, this list of conditions and the following disclaimer.
  12  *
  13  *   2. Redistributions in binary form must reproduce the above copyright
  14  *      notice, this list of conditions and the following disclaimer in the
  15  *      documentation and/or other materials provided with the distribution.
  16  *
  17  *   3. Neither the name of the authors nor the names of its contributors
  18  *      may be used to endorse or promote products derived from this
  19  *      software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  27  *   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  28  *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  29  *   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  30  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  31  *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  *  $Id: dl_win.c,v 1.4 2004/07/15 07:10:06 shirok Exp $
  34  */
  36 /* This file is included in load.c */
  38 /* NB: if we use MT, we need a special wrapper around LoadLibrary
  39    (see gc/gc_dlopen.c).   For the time being we assume MT is off
  40    on Windows/MinGW version. */
  42 #include <windows.h>
  44 static void *dl_open(const char *path)
  45 {
  46     return (void*)LoadLibrary(path);
  47 }
  49 static const char *dl_error(void)
  50 {
  51     char buf[80], *p;
DWORD code = GetLastError();
sprintf(buf, "error code %d", code);
p = SCM_NEW_ATOMIC2(char *, strlen(buf)+1);
strcpy(p, buf);
  56     return p;
  57 }
  59 static ScmDynLoadInitFn dl_sym(void *handle, const char *name)
  60 {
  61     return (ScmDynLoadInitFn)GetProcAddress((HMODULE)handle, name);
  62 }
  64 static void dl_close(void *handle)
  65 {
  66     (void)FreeLibrary((HMODULE)handle);
  67 }