Laurent D.A.M. MENTEN wrote:
> Here is a skeleton of how I handle pthreads (the same pattern works with
> win32 threads) in C++; Ther is of course a lot more to write for the
> thread management itself but the importants things are there. I use it
> by writting a derived class that overload the run() method.
>
> Hope it s.
>
> class Thread
> {
> static void* glue( void* );
>
> private:
> pthread_t tid;
> pthread_attr_t attr;
>
> public:
> Thread();
>
> virtual void* run() = 0;
> };
>
> void* Thread::glue( void* t )
> {
> return ((Thread*)t)->run();
> }
>
> Thread::Thread()
> {
> // ...
> pthread_create( &this->tid, &this->attr, Thread::glue, (void*)this );
> // ...
> }

This is wrong, Thread::glue is not an extern "C" function, so it
shouldn't be passed to pthread_create. You might get away with it (I'd
expect at least a complier warning), but it isn't portable.

I don't see why people are so hung up about passing a free function to
pthread_create in C++.

--
Ian Collins.