220 26893 <4CABB19C-4655-4153-8483-53E844AF1D1F@gmail.com> article Path: news.gmane.org!not-for-mail From: Howard Hinnant Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: std::lock and std::lock_guard for SharedLockable's lock_shared Date: Wed, 13 Jul 2016 10:43:50 -0400 Lines: 69 Approved: news@gmane.org Message-ID: <4CABB19C-4655-4153-8483-53E844AF1D1F@gmail.com> References: <8d4cc002-f0f2-465f-b856-841adc1ecffd@isocpp.org> <2DCF8C2C-C662-49EE-B7E5-3FA11B47AB58@gmail.com> <5785FAB2.2000203@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: multipart/signed; boundary="Apple-Mail=_11BD1763-8D98-4AFD-9E27-709229C0BC6D"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Trace: ger.gmane.org 1468421042 29000 80.91.229.3 (13 Jul 2016 14:44:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 13 Jul 2016 14:44:02 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCK2HM4L6YERBKNHTG6AKGQENP6VICQ@isocpp.org Wed Jul 13 16:43:55 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qk0-f198.google.com ([209.85.220.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bNLOF-0002fY-4a for gclcip-std-proposals@m.gmane.org; Wed, 13 Jul 2016 16:43:55 +0200 Original-Received: by mail-qk0-f198.google.com with SMTP id a123sf101826832qkd.2 for ; Wed, 13 Jul 2016 07:43:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=mime-version:subject:from:in-reply-to:date:message-id:references:to :x-original-sender:x-original-authentication-results:reply-to :precedence:mailing-list:list-id:x-spam-checked-in-group:list-post :list-help:list-archive:list-subscribe:list-unsubscribe; bh=GPVD9nCaawTYSQvS/WEJEad8B4EyZEMCzQJl9GlIDiU=; b=tM5lp32G3E9qqP3MfURMT6EwKhYEyV8M4KWOBCbKF9bMdE1+A+eUavztHHgBvDCrar lZSnFJFII+I6Btarsitjpd0wxpRoUE9vYggHXIdKLhstSczvEI8rUHy7JHmoza+qJG8L bhyOTi9PcbQDgTzYunkWdWjJ8ToqF/QpAd04Mf6pYWe3bJ3xXUPoqJ0OaFz88uI/akmh cwtnV13qs+jYm7sq1EMd0aGMfwfDng20xTag8u1BByh6X8xuQpH7NSLc6shOswLtU3Ep WY1sykE6z/QtY+hKE0APJl5p3y5xqjpe5aG9jHKdkwKbsdQ4fm1kMxbALxor0dalBzE6 1oLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date :message-id:references:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=GPVD9nCaawTYSQvS/WEJEad8B4EyZEMCzQJl9GlIDiU=; b=ZZNI/3YLLb4ViGMEsP3+i7//MpfdCvaETGt+efv5a4LNGQAq+5QrMHk+kmF5a3r40j cXc6tU6/SmboyKQzqAq0PlQEeKZaNoAPPHwev87EDcA7AdcGx6cM+XVwkhD1OEtQQJL9 XEPI9uxsxt/uRNJLP8XrBvBcscg70r9mg6kprCzIKqaH6FZB4W/aL9+sv9qDCL/RUtVq +VSDp9HgiPS0U5m6z7helqpRcEr/lEo3OzSsPWBTTsluYnjbKReO4xbMmuJy94ZznZMk cV8a/Me7OiI2iyOSEzbIJRh4lhLuCik1yqbyGxYFXrmV58t7Z96Kb96RmQGM01N0MPmB w5kg== X-Gm-Message-State: ALyK8tKi1TFGVKY1r+c4+PnnBTe8dbkHc8EcqysaYn4x6CqsK9esRmdL13+MeKrX3X93Wg== X-Received: by 10.200.36.26 with SMTP id c26mr6600606qtc.15.1468421034149; Wed, 13 Jul 2016 07:43:54 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.36.90.19 with SMTP id v19ls994506ita.17.gmail; Wed, 13 Jul 2016 07:43:53 -0700 (PDT) X-Received: by 10.129.83.131 with SMTP id h125mr6556424ywb.298.1468421033039; Wed, 13 Jul 2016 07:43:53 -0700 (PDT) Original-Received: from mail-qt0-x233.google.com (mail-qt0-x233.google.com. [2607:f8b0:400d:c0d::233]) by mx.google.com with ESMTPS id u128si2024299qkc.250.2016.07.13.07.43.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Jul 2016 07:43:53 -0700 (PDT) Received-SPF: pass (google.com: domain of howard.hinnant@gmail.com designates 2607:f8b0:400d:c0d::233 as permitted sender) client-ip=2607:f8b0:400d:c0d::233; Original-Received: by mail-qt0-x233.google.com with SMTP id j35so26816376qtj.2 for ; Wed, 13 Jul 2016 07:43:53 -0700 (PDT) X-Received: by 10.200.46.122 with SMTP id s55mr12776206qta.80.1468421032706; Wed, 13 Jul 2016 07:43:52 -0700 (PDT) Original-Received: from [10.0.1.2] (cpe-67-241-68-255.twcny.res.rr.com. [67.241.68.255]) by smtp.gmail.com with ESMTPSA id 56sm1057427qtt.31.2016.07.13.07.43.51 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 13 Jul 2016 07:43:51 -0700 (PDT) X-Pgp-Agent: GPGMail In-Reply-To: <5785FAB2.2000203@gmail.com> X-Mailer: Apple Mail (2.3124) X-Original-Sender: howard.hinnant@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com; spf=pass (google.com: domain of howard.hinnant@gmail.com designates 2607:f8b0:400d:c0d::233 as permitted sender) smtp.mailfrom=howard.hinnant@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:26893 Archived-At: --Apple-Mail=_11BD1763-8D98-4AFD-9E27-709229C0BC6D Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Jul 13, 2016, at 4:24 AM, Andrey Semashev wr= ote: >=20 > As for the shared_lock_guard, I do think it is needed, even if not the va= riadic version. Just do this: using shared_lock_guard =3D const std::shared_lock; The standard should concentrate on supplying those things that are not triv= ial for anyone to do themselves, or is needed in virtually every program. On Jul 13, 2016, at 6:17 AM, 'Bernd L=C3=B6rwald' via ISO C++ Standard - Fu= ture Proposals wrote: > std::lock (LockableOrSharedLockable1&, Policy1, =E2=80=A6); >=20 > to be used as >=20 > std::lock (other.mutex_, std::lock_shared, mutex_, std::lock_exclusiv= e); I await the implementation and positive field experience. Howard --=20 You received this message because you are subscribed to the Google Groups "= ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. 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