From owner-cvs-all@FreeBSD.ORG Thu Aug 16 17:43:06 2007 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5879F16A417; Thu, 16 Aug 2007 17:43:06 +0000 (UTC) (envelope-from deischen@freebsd.org) Received: from mail.netplex.net (mail.netplex.net [204.213.176.10]) by mx1.freebsd.org (Postfix) with ESMTP id 1220013C442; Thu, 16 Aug 2007 17:43:05 +0000 (UTC) (envelope-from deischen@freebsd.org) Received: from sea.ntplx.net (sea.ntplx.net [204.213.176.11]) by mail.netplex.net (8.14.1/8.14.1/NETPLEX) with ESMTP id l7GHgwf5008530; Thu, 16 Aug 2007 13:42:58 -0400 (EDT) X-Virus-Scanned: by AMaViS and Clam AntiVirus (mail.netplex.net) X-Greylist: Message whitelisted by DRAC access database, not delayed by milter-greylist-3.0 (mail.netplex.net [204.213.176.10]); Thu, 16 Aug 2007 13:42:58 -0400 (EDT) Date: Thu, 16 Aug 2007 13:42:58 -0400 (EDT) From: Daniel Eischen X-X-Sender: eischen@sea.ntplx.net To: Xin LI In-Reply-To: <46C472EF.9070204@delphij.net> Message-ID: References: <200708160526.l7G5Qg0b008022@repoman.freebsd.org> <46C472EF.9070204@delphij.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: cvs-src@freebsd.org, src-committers@freebsd.org, David Xu , cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/kern kern_thr.c syscalls.master src/sys/sys thr.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Daniel Eischen List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Aug 2007 17:43:06 -0000 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