> On Oct 30, 2022, at 7:20 PM, Marco van de Voort via fpc-pascal > <fpc-pascal@lists.freepascal.org> wrote: > > I'm not that deep into those procedural threading. From what I remember the > prototypes are defined, but not their use. > > But since tthread works on top of that, you can simply trace how tthread does > it, which is probably more solid and up to date than documentation and two > decade old tutorials. > > Most notably how tthread.freeonterminate is implemented. Some OSes like > Windows (that tthread is modeled after) keep some thread resources around to > read the result back after the thread is finished. > >> Pthreads at least doesn’t appear to require you to detach the thread but >> maybe it’s leaking memory then. > > The manual you quoted seemed to indicate you either have to call _join or > _detach.
Yes you’re right, I didn’t read all the way to the bottom. It says you must call join OR detach to free resources. That doesn’t sound right you could only call join but who knows.. I tried to call EndThread (which calls pthread_detach) after the function reaches the end but I get a crash. Looking BeginThread it appears to call the user callback in a wrapper and does cleanup for you but I’m not 100% clear about this. Docs (https://www.freepascal.org/docs-html/rtl/system/beginthread.html) don’t say you must cleanup either so I’m guessing you don’t have to. Regards, Ryan Joseph _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
