From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 512ef6d6 for ; Fri, 11 Jan 2019 23:33:23 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 02AC894671; Sat, 12 Jan 2019 09:33:22 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 9CF4694666; Sat, 12 Jan 2019 09:33:08 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=bsdimp-com.20150623.gappssmtp.com header.i=@bsdimp-com.20150623.gappssmtp.com header.b="isxBN94d"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 9521094666; Sat, 12 Jan 2019 09:33:07 +1000 (AEST) Received: from mail-qk1-f176.google.com (mail-qk1-f176.google.com [209.85.222.176]) by minnie.tuhs.org (Postfix) with ESMTPS id 9BE3293D29 for ; Sat, 12 Jan 2019 09:33:06 +1000 (AEST) Received: by mail-qk1-f176.google.com with SMTP id a1so7550138qkc.5 for ; Fri, 11 Jan 2019 15:33:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=NZpk1B6Fb1qHiUoqS1OCfVymyLMtzgiQSR0K7NKv1ZU=; b=isxBN94dbY5ybTOxd8HCPGXQcwWAHLdwfZnTnoaFm0a9iYMX+51QIHsvMW4qBYSfKY aeB/myoy7SVGmX5S24IMlSkUkJF4cRNLxodQStiDDDxn3MZuhVtXJO/C79gt1ooGyqTx AtZckVUUdrPSVWVoAalvMacpZz6+9i7hGQVeiOGq8eZTxf35hxS4YcTjqb9NjH2P4/jP Av4kh8hUmzcttSyRksXXWuqGsNgWfoX3Jk9H7dQ+k7G2QFOAI77qrPm0AbpDvBpaQDSl 5ymOsboESoltISG0sPzVsWO82b7WVmfV7q6haMECev0tKewEPfhgpU1hX08U62c2d2oV i+Hg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=NZpk1B6Fb1qHiUoqS1OCfVymyLMtzgiQSR0K7NKv1ZU=; b=SWZkf6APdfuaZUo8yJSlGiviW5CawZau5OKKRWRXbTS3qEl39V4x5uSbYVydMpQn7s FyQ3SlZv9QdTHqfuB5OktZHocfRaohhBuNAqcXy2djw+xvl5j7Q5MkA4NIT07ven/ziT FjhQMRiVOhL6zlALPzCUG3M/EXoM38OQKVAwftGUlEDOCNBFqI9hB2q1cAXCoI9Msi21 6fohkZ4+wvyypmboiHVGWp3OOpHVYbe5Rp0UTwvIcfg/dwugiTdXY+VQNkDOrmv503I3 jmZ15Lqzl3+3DOkIqftS+nJ6+sUxzIwYnqFPd45US01Ty5CEG2o217zh1I5FHIk61o0v LnMg== X-Gm-Message-State: AJcUukffBrU0kaTLc50fTFyUu/lW8govHVTyq3cNFqlkUDfnM9jDE5mI nROlE6H1i3dBRdXZY+fKW3CswoEc35uAXuK2DC6dAQ== X-Google-Smtp-Source: ALg8bN5Bp5ia8xVvzx8eKxlCpFqcaeIYA/xvGbN51w4DE6JPCL8J4rpOeveZukmw7lCfaXMsV+/crLQAkOU7DPELPqk= X-Received: by 2002:a37:6e86:: with SMTP id j128mr15353658qkc.46.1547249585701; Fri, 11 Jan 2019 15:33:05 -0800 (PST) MIME-Version: 1.0 References: <39F862F7-7C4B-4A09-B838-942BE0FD2626@planet.nl> <1581c01d4a9c2$ffed5340$ffc7f9c0$@ronnatalie.com> In-Reply-To: From: Warner Losh Date: Fri, 11 Jan 2019 16:32:54 -0700 Message-ID: To: Clem Cole Content-Type: multipart/alternative; boundary="000000000000ef5f61057f371da5" Subject: Re: [TUHS] V6 networking & alarm syscall X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" --000000000000ef5f61057f371da5 Content-Type: text/plain; charset="UTF-8" On Fri, Jan 11, 2019 at 3:48 PM Clem Cole wrote: > > > On Fri, Jan 11, 2019 at 5:09 PM wrote: > >> >> The select system call was added in 81/02/07 with no comment. Commit >> history shows in 81/10/17: "cleanup (mpx removal, old tty removal, >> beginnings of select)" and in 81/10/11 "first boot with select()" which >> includes lots of changes like replace lots of tty code and use >> selwakeup(). > > > Actually, that is a nice memory jog. Chesson wrote mpx(2) for DataKit > for UNIX/TS. IIRC: It was not originally part of v7, but he sent copies > of out to a number of folks. Somwhere I might even have the email when > he sent it to me at CMU in the late 1970s. The point is that it was in > the wild as it were at a lot of places; certainly at UCB by 4.1. Sam and > Joy had seen and messed with mpx(2) before select(2) was concieved. > > To Paul's question - mpx(2) was done for networking. > How is that different than the pk driver that was in v7? Warner --000000000000ef5f61057f371da5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Fri, Jan 11, 2019 at 3:48 PM Clem Cole <clemc@ccc.com> wrote:

=

On Fri, Jan 11, 2019 at 5:09 PM <reed@reedmedia.net> wrote:

The select system call was added in 81/02/07 with no comment. Commit
history shows in 81/10/17: "cleanup (mpx removal, old tty removal, beginnings of select)" and in 81/10/11 "first boot with select()&= quot; which
includes lots of changes like replace lots of tty code and use
selwakeup().

Actually, that is a nice memory jog.=C2=A0 =C2=A0= Chesson wrote mpx(2) for DataKit for UNIX/TS.=C2=A0 =C2=A0IIRC: It was not = originally part of v7, but he sent copies of out to a number of folks.=C2= =A0 =C2=A0 Somwhere I might even have the email when he sent it to me at CM= U in the late 1970s.=C2=A0 =C2=A0The point is that it was in the wild as it= were at a lot of places; certainly at UCB by 4.1.=C2=A0 =C2=A0 Sam and Joy= had seen=C2=A0 and messed with mpx(2) before select(2) was concieved.

To Paul's question - mpx(2)= was done for networking.

How is that different than the pk driver that was in v7?

Warner=C2=A0
--000000000000ef5f61057f371da5--