William E. Kempf wrote:
>
> Philippe A. Bouchard said:
>> William E. Kempf wrote:
>>
>> [...]
>>
>>> As already pointed out, to associate data with a thread you use
>>> thread_specific_ptr. BTW, you still have to remember that the
>>> functor is copied, and data passed to/in the functor is not
>>> considered part of the thread in any event.
>>
>> Ok, how do you find out the data of the current thread? The key in
>> boost::detail::tss is not the same as the one in boost::thread.
>
> What data? The actual thread data (there's not much, beyond the thread id
> which isn't direclty accessible) is found by calling the default c-tor on
> the thread. The data passed in the functor is your responsibility.
> Either you explicitly pass it everywhere that's needed, or the thread
> stores it in a tss key.
>
Suppose you have:
struct functor1
{
list<void *> m_list;
void operator () ()
{
...
}
};
struct functor2
{
list<void *> m_list;
void operator () ()
{
...
}
};
int main()
{
thread f1(functor1());
thread f2(functor2());
...
// I would like to access m_list of the current thread's functor:
lock()...
if (thread() == f1 || thread() == f2)
{
thread()..(whatever casts)...m_list;
}
unlock()...
// I think the only way to do this is by mapping the thread's id
// with the object's address (map<key, functor1 *>) but there is
// no standard key publicly accessible and map<> creates overhead.
}
Regards,
--
Philippe A. Bouchard
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