From owner-freebsd-current@freebsd.org Fri Apr 22 08:08:39 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4D695B1892D for ; Fri, 22 Apr 2016 08:08:39 +0000 (UTC) (envelope-from theraven@FreeBSD.org) Received: from theravensnest.org (theraven.freebsd.your.org [216.14.102.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "cloud.theravensnest.org", Issuer "StartCom Class 1 DV Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 248DC1E4D; Fri, 22 Apr 2016 08:08:37 +0000 (UTC) (envelope-from theraven@FreeBSD.org) Received: from [192.168.0.7] (cpc91230-cmbg18-2-0-cust661.5-4.cable.virginm.net [82.1.230.150]) (authenticated bits=0) by theravensnest.org (8.15.2/8.15.2) with ESMTPSA id u3M88PUI044077 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 22 Apr 2016 08:08:30 GMT (envelope-from theraven@FreeBSD.org) X-Authentication-Warning: theravensnest.org: Host cpc91230-cmbg18-2-0-cust661.5-4.cable.virginm.net [82.1.230.150] claimed to be [192.168.0.7] Content-Type: multipart/signed; boundary="Apple-Mail=_88835969-7560-4F92-BC56-0A666D4ABB7C"; protocol="application/pkcs7-signature"; micalg=sha1 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) Subject: Re: [CFT] packaging the base system with pkg(8) From: David Chisnall In-Reply-To: <7F12F680-080B-4DB3-81A5-CC5282B78034@rdsor.ro> Date: Fri, 22 Apr 2016 09:08:19 +0100 Cc: =?utf-8?Q?Edward_Tomasz_Napiera=C5=82a?= , freebsd-current Message-Id: References: <76093.1461096570@critter.freebsd.dk> <5716AD65.8070007@shrew.net> <5716FA70.4080604@freebsd.org> <571765BB.3050908@quip.cz> <79117ce18bd3332c7df3e55e12a161b4@rdsor.ro> <20160421095706.GA57206@brick> <30F6CCDE-E099-49EF-9A1A-68F147FBF50B@rdsor.ro> <20160421202023.GB33506@brick> <7F12F680-080B-4DB3-81A5-CC5282B78034@rdsor.ro> To: Dan Partelly X-Mailer: Apple Mail (2.2104) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Apr 2016 08:08:39 -0000 --Apple-Mail=_88835969-7560-4F92-BC56-0A666D4ABB7C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 On 21 Apr 2016, at 21:48, Dan Partelly wrote: >=20 > Yes, you are right it misses the media change handler in devd.conf.=20= > maybe it should bementioned somewhere in a man page if it is not > already there. Thanks for the pointer. >=20 > Anyway, if I would have written the system, what I would have done > is to consolidate both user mode daemons into one and make this > daemon a client of devd, fstyp a library, and handle all removable=20 > media inside transparent to the user, without requiring any = modifications > to devd.conf, and without relaying on shell scripts.=20 >=20 > Is there any reason you did not took this approach ? This is not > criticism, I am genuinely interested. One of the current shortcomings of devd is that it does not provide a = good mechanism for other running processes to request notification of = events dynamically. Ideally, when the automounter daemon starts, it = should connect to devd via an IPC channel and request notification of = the specific events that it wants. This is a known problem (which = extends to more than just the automounter) and there are some tentative = plans to fix it, but they=E2=80=99re not yet concrete and won=E2=80=99t = be in 11.0, though hopefully will appear at some point in the 11.x = series. 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