threads question

[Michael C. Shultz]

On Monday 14 March 2005 08:57 pm, Daniel Eischen wrote:
> On Mon, 14 Mar 2005, Michael C. Shultz wrote:
> > Hi, I've just reached a point in a program I'm writing where I'd
> > like to do threading.
> >
> > When I try to start a thread like this:
> >
> > pthread_create(&thread, &attr, MGPMrUpgrade, property );
>
>                                                ^^^^^^^^  &property
>
> You should compile with -Wall and get rid of any warnings.
>
> > where property is a structure of many variables it doesn't get
> > passed to the function.  If I do this:
> >
> > pthread_create(&thread, &attr, MGPMrUpgrade( &property ), NULL );
>
> That looks like it will actuall call MGPMrUpgrade() and use its
> return value as the function pointer.
>
> > It works, but just seems wrong.
> >
> > Can anyone point me to a source file, preferably in /usr/src
> > somewhere that passes a structure to a function being run as a
> > thread so I may study the proper way to do this?
>
>   src/lib/libpthread/test/sem_d.c
>   src/lib/libpthread/test/mutex_d.c
>   src/lib/libpthread/test/sigwait_d.c

Great!
>
> I'd suggest getting Butenhof's "Programming with POSIX Threads" book.

I did a google on "Programming with POSIX Threads" and this site popped 
up first.  I remember this guy's stuff from way back when on signals I 
think, it was great for a beginner so maybe this one is worth looking 
at too.
 
"http://users.actcom.co.il/~choo/lupg/tutorials/multi-thread/multi-thread.html"

I found the book at Amazon, thanks for the tip!

Many thanks!

-Mike