Re: *ping* generic atomicity.h

[Danny Smith <danny_r_smith_2001 at yahoo dot co dot nz>]

 --- Phil Edwards <phil@jaj.com> wrote: > On Sat, Jan 25, 2003 at 11:05:05AM
+1100, Danny Smith wrote:
> > I have only tested on 3.3.  I've just returned from holiday and trunk is
> > throwing some unrelated problems which I have not yet worked through.
> 
> Here's what I plan on actually checking in on the trunk, then 3.3 if no
> problems arise.
> 
> v3 will compile with this atomicity.h, but of course I can't runtest it.
> Sanity check?
> 

OK, with patch and configure for i386-pc-mingw32, libstdc++ builds fine and my
runtests succeed on i586 and i686 for 3_3 branch, trunk bootstrap in progress. 
  I have been unable to locate an i386 with _ 32-bit Windows installed so I
can't test i386. I don't even know if i386 will even run Windows95 without
crashing on a regular basis.

I have modified testsuite/threads/pthread6.cc for windows as a simple testcase.
 Here it is.
Danny


// win32-thread6.cc

// 2002-01-23  Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
// Adpated from libstdc++/5444 submitted by markus.breuer@materna.de
//
// Copyright (C) 2002, 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// { dg-do run { target *-*-mingw32 } }
// { dg-options "-mthreads" }

#include <string>
#include <map>
#include <vector>
#include <process.h>

#if __GTHREADS

const int max_thread_count = 8;
const int loops = 100000;

const char* my_default = "Hallo Welt!";

const int upper_limit = 2500;
const int lower_limit = 1000;

typedef char charT;

typedef std::string String;

typedef String MyType;

void
thread_main (void*)
{
  typedef std::map<unsigned int,MyType> Map;
  typedef Map::value_type Value_Pair;
  Map myMap;

  for (int loop = 0; loop < loops; loop++)
    {
      String& str = myMap[loop];
      str.append (my_default);
      myMap.insert (Value_Pair (loop, str));
      
      if (myMap.size () > upper_limit)
	{
	  while (myMap.size () > lower_limit)
	    {
	      Map::iterator it = myMap.begin ();
	      myMap.erase (it);
	    }
	}
    }
}

int
main (void)
{
  for (int i = 0; i < max_thread_count; i++)
    _beginthread (thread_main, 0, NULL);

  return 0;
}
#else
int main (void) {}
#endif

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