On Sun, Sep 26, 2021 at 02:36:02PM +0200, Mark Kettenis wrote: > > Date: Fri, 24 Sep 2021 19:36:21 +0200 > > From: Rafael Sadowski <raf...@sizeofvoid.org> > > > > I'm trying to port the more KDE stuff so my question is from porter > > perspective. > > > > I need sigwaitinfo(2)/sigtimedwait(2) and I found both functions in > > lib/libc/gen/sigwait.c with the comment "need kernel to fill in more > > siginfo_t bits first". Is the comment still up to date? If no, is it > > possible to unlock the functions? > > Still true. These functions are somewhat underspecified by POSIX so > it isn't really obvious whatadditional bits need to be filled in. > Having examples of code that use these interfaces from ports could > help with that.
Especially if the siginfo SIGCHLD bits are required. This will require major work in the kernel since we don't have a method in place to transport the exit information from the exiting process to the parent signal handler. -- :wq Claudio
