Subj : Re: Lock free t-safe smart pointer based on double linked list
To   : comp.programming.threads
From : Joe Seigh
Date : Fri May 13 2005 09:07 am

On 12 May 2005 22:20:56 -0700, axter <temp@axter.com> wrote:

>
> rGlory wrote:
>>
>> There is another problem though. To use such structure as SP I need
> to
>> put a pointer into struct item. It is not clear to me how to safely
>> assign such pointer when "everything can change any time".
>>
>> Any ideas?
>
> For a thread safe C++ smart pointer, check out the following link:
> http://code.axter.com/sync_ptr.h
>
> The sync_ptr smart pointer is a wrapper class that can make the
> instance of any object thread safe.  In windows it can use critical
> section logic or mutex, and in UNIX/Linux it uses POSIX mutex logic.
>
>
How do you avoid deadlock?

   thread 1:         x->f(&(y->g());
   thread 2:         y->f(&(x->g());


-- 
Joe Seigh

When you get lemons, you make lemonade.
When you get hardware, you make software.

.