Subj : Re: A question about atomic_ptr
To   : comp.programming.threads
From : Chris Thomasson
Date : Sun Apr 17 2005 02:34 am

I needed to tweak it in order to handle the static storage bit correctly. 
Here is the hack:




> static void AC_CDECL lfgc_dtor( void *s )
> {
>  ac_cpu_node_t *node = (ac_cpu_node_t*)s;
>  delete (sp_counted_base*)node->state;
>  ac_thread_cpu_node_cache_push( ac_thread_self(), node );
> }

Needs to be:

    static void AC_CDECL lfgc_dtor( void *s )
    {
      ac_cpu_node_t *node = (ac_cpu_node_t*)s;
      delete (sp_counted_base*)node->state;

      if ( node->next == (ac_cpu_node_t*)0x00000001 )
      {
        node->fp_dtor = (ac_fp_dtor_t)0x00000001;
      }

      ac_thread_cpu_node_cache_push( ac_thread_self(), node );
    }




>  void init( sp_counted_base *_base )
>  {
>    m_node = ac_thread_cpu_node_cache_pop
>              ( ac_thread_self(),
>                _base );
>  }

Needs to be:

     void init( sp_counted_base *_base )
     {
       m_node = ac_thread_cpu_node_cache_pop( ac_thread_self(), _base );

       if ( m_node->fp_dtor == (ac_fp_dtor_t)0x00000001 )
       {  m_node->next = (ac_cpu_node_t*)0x00000001; }
     }




So far it looks like this may work! I will tinker around with it some more 
and report back soon. I should really post full modified boost sources... 
Humm...

;)

.