text: /*
   * dl_win.c - windows LoadLibrary interface
   *
   *   Copyright (c) 2000-2019  Shiro Kawai  <shiro@acm.org>
   *
   *   Redistribution and use in source and binary forms, with or without
   *   modification, are permitted provided that the following conditions
   *   are met:
   *
   *   1. Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *
   *   2. Redistributions in binary form must reproduce the above copyright
   *      notice, this list of conditions and the following disclaimer in the
   *      documentation and/or other materials provided with the distribution.
   *
   *   3. Neither the name of the authors nor the names of its contributors
   *      may be used to endorse or promote products derived from this
   *      software without specific prior written permission.
   *
   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
   *   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   *   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   *   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /* This file is included in load.c */
  
  /* NB: if we use MT, we need a special wrapper around LoadLibrary
     (see gc/gc_dlopen.c).   For the time being we assume MT is off
     on Windows version. */
  
  #include <windows.h>
  
  static void *dl_open(const char *path)
  {
      LPTSTR xpath = (LPTSTR)SCM_MBS2WCS(path);
      return (void*)LoadLibrary(xpath);
  }
  
  static const char *dl_error(void)
  {
      char buf[80];
      DWORD code = GetLastError();
      snprintf(buf, sizeof(buf), "error code %ld", code);
      return SCM_STRDUP(buf);
  }
  
  static ScmDynLoadInitFn dl_sym(void *handle, const char *name)
  {
      return (ScmDynLoadInitFn)GetProcAddress((HMODULE)handle, name);
  }
  
  static void dl_close(void *handle)
  {
      (void)FreeLibrary((HMODULE)handle);
  }
  