mingw-w64-libraries/winpthreads/tests_pthread/loadfree.c

/*
 *
 *
 * --------------------------------------------------------------------------
 *
 *      Pthreads-win32 - POSIX Threads Library for Win32
 *      Copyright(C) 1998 John E. Bossom
 *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 * 
 *      Contact Email: rpj@callisto.canberra.edu.au
 * 
 *      The current list of contributors is contained
 *      in the file CONTRIBUTORS included with the source
 *      code distribution. The list can also be seen at the
 *      following World Wide Web location:
 *      http://sources.redhat.com/pthreads-win32/contributors.html
 * 
 *      This library is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU Lesser General Public
 *      License as published by the Free Software Foundation; either
 *      version 2 of the License, or (at your option) any later version.
 * 
 *      This library is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *      Lesser General Public License for more details.
 * 
 *      You should have received a copy of the GNU Lesser General Public
 *      License along with this library in the file COPYING.LIB;
 *      if not, write to the Free Software Foundation, Inc.,
 *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 *
 * --------------------------------------------------------------------------
 * From: Todd Owen <towen@lucidcalm.dropbear.id.au>
 * To: pthreads-win32@sourceware.cygnus.com
 * Subject: invalid page fault when using LoadLibrary/FreeLibrary
 * 
 * hi,
 * for me, pthread.dll consistently causes an "invalid page fault in
 * kernel32.dll" when I load it "explicitly"...to be precise, loading (with
 * LoadLibrary) isn't a problem, it gives the error when I call FreeLibrary.
 * I guess that the dll's cleanup must be causing the error.
 * 
 * Implicit linkage of the dll has never given me this problem.  Here's a
 * program (console application) that gives me the error.
 * 
 * I compile with: mingw32 (gcc-2.95 release), with the MSVCRT add-on (not
 * that the compiler should make much difference in this case).
 * PTHREAD.DLL: is the precompiled 1999-11-02 one (I tried an older one as
 * well, with the same result).
 * 
 * Fascinatingly, if you have your own dll (mycode.dll) which implicitly
 * loads pthread.dll, and then do LoadLibrary/FreeLibrary on _this_ dll, the
 * same thing happens.
 * 
 */

#include "test.h"

int main() {
  HINSTANCE hinst;

  //assert((hinst = LoadLibrary("pthread")) != (HINSTANCE) 0);

  Sleep(100);

  //FreeLibrary(hinst);
  return 0;
}