{"id":817379,"url":"http://patchwork.ozlabs.org/api/covers/817379/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/cover/20170922081728.32508-1-mac@mcrowe.com/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170922081728.32508-1-mac@mcrowe.com>","list_archive_url":null,"date":"2017-09-22T08:17:24","name":"[RFC,0/4] Make std::future::wait_* use std::chrono::steady_clock when required","submitter":{"id":66786,"url":"http://patchwork.ozlabs.org/api/people/66786/?format=json","name":"Mike Crowe","email":"mac@mcrowe.com"},"mbox":"http://patchwork.ozlabs.org/project/gcc/cover/20170922081728.32508-1-mac@mcrowe.com/mbox/","series":[{"id":4567,"url":"http://patchwork.ozlabs.org/api/series/4567/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=4567","date":"2017-09-22T08:17:24","name":"Make std::future::wait_* use std::chrono::steady_clock when required","version":1,"mbox":"http://patchwork.ozlabs.org/series/4567/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/817379/comments/","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-462755-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"Ff5BQd2c\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xz5wM0J62z9s8J\n\tfor ;\n\tFri, 22 Sep 2017 18:18:35 +1000 (AEST)","(qmail 25559 invoked by alias); 22 Sep 2017 08:18:21 -0000","(qmail 25139 invoked by uid 89); 22 Sep 2017 08:18:19 -0000","from relay101a.appriver.com (HELO relay.appriver.com)\n\t(207.97.230.14) by sourceware.org\n\t(qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP;\n\tFri, 22 Sep 2017 08:18:18 +0000","from [213.210.30.29] (HELO elite.brightsign) by relay.appriver.com\n\t(CommuniGate Pro SMTP 6.1.7) with ESMTPS id 201294865;\n\tFri, 22 Sep 2017 04:18:11 -0400","from chuckie.brightsign ([fd44:d8b8:cab5:cb01::19]\n\thelo=chuckie)\tby elite.brightsign with esmtp (Exim\n\t4.89)\t(envelope-from )\tid\n\t1dvJA1-000B0D-Vm; 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It also makes\nstd::future::wait_until react to changes to CLOCK_REALTIME during the\nwait, but only when passed a std::chrono::system_clock time point.\n\nPrior to these patches, the situation is similar to that described at\nhttps://gcc.gnu.org/bugzilla/show_bug.cgi?id=41861 for\nstd::condition_variable, but with the benefit that this time the bug can be\nfixed entirely within libstdc++.\n\n(I've omitted the ChangeLog entries for now, since I don't believe that\nthis is ready to be accepted in its current form.)\n\nMike.\n\nMike Crowe (4):\n libstdc++ futex: Use FUTEX_CLOCK_REALTIME for wait\n libstdc++ futex: Support waiting on std::chrono::steady_clock directly\n libstdc++ atomic_futex: Use std::chrono::steady_clock as reference\n clock\n Extra async tests, not for merging\n\n libstdc++-v3/include/bits/atomic_futex.h | 74 +++++++++++++++++++++--\n libstdc++-v3/src/c++11/futex.cc | 48 +++++++++++----\n libstdc++-v3/testsuite/30_threads/async/async.cc | 76 ++++++++++++++++++++++++\n 3 files changed, 181 insertions(+), 17 deletions(-)"}