Right, thanks, I forgot to check boehm-gc. I believe others have learned/borrowed from it. Will do that next week. I am running successfully on mips64 (gdium). Had to come up with new (to me) trick for makecontext related to register T9/$25.
Jay/phone > To: [email protected] > From: [email protected] > CC: [email protected] > Subject: Re: get/set/make/swapcontext please? > Date: Sat, 31 Jul 2010 14:56:59 +0100 > > On 2010-07-26, Jay K <[email protected]> wrote: > > We do need to be able to suspend/resume threads > > and get their context while suspended. We have two ways of doing > > this for pthreads platforms: > > send a signal and wait in the signal handler > > some use of semaphore here > > I think this semaphore thing runs afoul of typical usermode threading > > libraries, such as OpenBSD's. > > And apparently others e.g. FreeBSD and Darwin/MacOSX. > > On FreeBSD and Darwin we have custom code for suspend/resume. > > I think in some places it is based on the boehm gc. > > Is there anything in ports/devel/boehm-gc you could borrow? It does indeed > do this type of operation and works pretty well on most arch we support > (mips64* and the a.out arch being the notable exceptions). > > > Please provide get/set/make/swapcontext. > > (and/or kernel threads.) > > As far as ports are concerned, the userland threading library (especially > changed filedescriptor semantics) is I think the area causing us the biggest > problems now. By contrast, though the ucontext.h functions would be nice to > have, in the software I've ported, there's only one thing I've failed to > port due to not having them...
