Date: Fri, 17 Aug 2007 09:42:26 +0800 From: David Xu <davidxu@freebsd.org> To: Daniel Eischen <deischen@freebsd.org> Cc: cvs-src@freebsd.org, src-committers@freebsd.org, Xin LI <delphij@delphij.net>, cvs-all@freebsd.org, tijl@ulyssis.org Subject: Re: cvs commit: src/sys/kern kern_thr.c syscalls.master src/sys/sys thr.h Message-ID: <46C4FD02.3090708@freebsd.org> In-Reply-To: <Pine.GSO.4.64.0708161336370.1396@sea.ntplx.net> References: <200708160526.l7G5Qg0b008022@repoman.freebsd.org> <Pine.GSO.4.64.0708161019000.610@sea.ntplx.net> <46C472EF.9070204@delphij.net> <Pine.GSO.4.64.0708161336370.1396@sea.ntplx.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Daniel Eischen wrote: > On Thu, 16 Aug 2007, Xin LI wrote: > >> Daniel Eischen wrote: >> >>> On Thu, 16 Aug 2007, David Xu wrote: >>> >>>> davidxu 2007-08-16 05:26:42 UTC >>>> >>>> FreeBSD src repository >>>> >>>> Modified files: >>>> sys/kern kern_thr.c syscalls.master >>>> sys/sys thr.h >>>> Log: >>>> Add thr_kill2 syscall which sends a signal to a thread in another >>>> process. >>> >>> >>> I do not think this is a good idea. There is no such thing in Solaris, >>> only Linux seems to have this hideous idea of an API. >> >> >> I think this would be helpful for applications like Wine. Is there >> any other way to implement the semantics? > > > I realize what it's for, and I don't agree that it belongs in the > tree. There are other forms of interprocess communication, pipes, > sockets, even msg queues. I'm sure you can find a few ways to send > a message to a process to say "send signal X to thread Y" if you > really wanted to. It looks like even Linux makes you use a thread > group, not a thread. > > I don't see where this was discussed on -arch or -current, but > maybe I missed that thread. > > -- > DE > I've CCe'd Tijl Coosemans to check if there is another way to implement the feature in WINE instead of in kernel. in fact, I have delayed the the change for a few days, I was thinking you know the patch, but the fact is not now. PS, the feature is not required by libthr. ;-) Regards, David Xu
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?46C4FD02.3090708>