X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 8427B388CC03
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1628853611;
	bh=t9kyzmgYG01qmim8lSdGENgrxaGoRgqD6bm43z4ulSo=;
	h=Subject:To:References:Date:In-Reply-To:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	From;
	b=fCoeC1GuDgQ0Xvc5bzcWaQa7Pa0mmzkbx1gEOohquYd+uEHgMpyuCp2EPEdSyUux9
	vraYCq9w8eam5XlX+pTP8IKtYAWzalmxm6HaDKd+3Yy8+rc9GOW5G2G0rEzSnRIufC
	LKs4l/ddcIjMyGeEowZV9NhmnvX2NjOX14FjblAM=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.1 sourceware.org 758BF3857813
ARC-Seal:	i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
	b=oBh7SBPGdIqBprhdI/kzIcXGo8MyIYFbNw1QfsP/esZ98RWpT7kNU5YU46XNsR28KWVy+NslLDuRpEcZ38I+JeeHHcS+UZzNZn3eifQ9QqD2TuloiU2B34ti1Ji2KRYRTpaAsH43wj24nKYVd8bUKCQcsMmeoP57ONYPQredQ48ytItrvStYsyFadJyAypdGgXLqag4MYfzK9TSHeYN76vPjTmqhGbkaim9cT5vkNkpjGaf6gQBfPxx+N/yrg1FURast+gKFtKQSIYxrh5Vc0dT0FAlEz9qbwBmFcQhf2HAj5q2r2XqgDUaxqX0ur+TgTL33cCIlyZiINS+VElpUtQ==
ARC-Message-Signature:	i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;
	s=arcselector9901;
	h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
	bh=SdHc1TVd1iGSFLVAOWvLF7vAyUcJ5R4kY71pza1eclU=;
	b=oKr4Sn9Y9e2KSi1gEj83aOVTwXsVkcEsJSNMrzhQ3XHG1nBCx1YoVje579JXXCQVNTbFpqjq+9X9alpohceGDkmS49FIGPwUqGNsEVOZo0XMiUj+8+gjAaHWTGqkGmxT+PCigVchaP3pRNr3dQd8J+1Easy1dHxF+Lyb8gt6SokcuqnBRhBuoFN5+CxWvzi/fhj9wcV3Q8TVHdMwAyEdT781tC+nu3Ta8nCMCsjlVDm9MVattpmoxKYp4G9LmxkenW5mEml7PK3cHtK296HcAuiFUn5BTzfFSSQNnz7Ybb/s2dQapB5N/A4H+pXlLQ+z2zc/6AhfdXkQwGjVpd9Law==
ARC-Authentication-Results:	i=1; mx.microsoft.com 1; spf=pass
	smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu;
	dkim=pass header.d=cornell.edu; arc=none
Subject:	Re: AF_UNIX/SOCK_DGRAM is dropping messages
To:	sten DOT kristian DOT ivarsson AT gmail DOT com, cygwin AT cygwin DOT com
References:	<04cc01d71ffa$7d1e6cf0$775b46d0$@gmail.com>
	<YFo/fFC2bITvnVGr AT xps13> <00d901d7208e$97c05c50$c74114f0$@gmail.com>
	<860668bf-8cf9-0969-6a01-7fbf8b782db1 AT cornell DOT edu>
	<000901d72607$55dc5a90$01950fb0$@gmail.com>
	<3346cd1c-b93f-83c4-ff26-553ac95ec692 AT cornell DOT edu>
	<7c21a430-9609-7fd4-1a02-8b7c1978d2f8 AT cornell DOT edu>
	<001901d72af4$4009cd50$c01d67f0$@gmail.com>
	<134074c1-4c0b-0842-b88b-536a1ed4aefe AT cornell DOT edu>
	<000e01d7306e$3c265580$b4730080$@gmail.com>
	<19cf8626-c653-76db-a409-730a5aa5c955 AT cornell DOT edu>
	<4380cdea-c95b-d9dc-50e3-e5adabb73b92 AT cornell DOT edu>
	<000701d73151$9c259660$d470c320$@gmail.com>
	<2e64e918-b28b-753e-8337-c757cc62b9bb AT cornell DOT edu>
	<000001d731f9$58e417c0$0aac4740$@gmail.com>
	<65921e52-af84-3d2f-fd01-28e5c7866a73 AT cornell DOT edu>
	<68a8835a-0992-296c-bf4b-28be0ff34818 AT cornell DOT edu>
	<003d01d73bfe$416c7d80$c4457880$@gmail.com>
	<009d01d78f79$68d010c0$3a703240$@gmail.com>
Message-ID:	<0aa45506-662b-eb06-39ae-4adb4b30050f@cornell.edu>
Date:	Fri, 13 Aug 2021 07:19:24 -0400
User-Agent:	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
	Thunderbird/78.12.0
In-Reply-To:	<009d01d78f79$68d010c0$3a703240$@gmail.com>
X-ClientProxiedBy:	CH2PR17CA0024.namprd17.prod.outlook.com
	(2603:10b6:610:53::34) To BN7PR04MB4388.namprd04.prod.outlook.com
	(2603:10b6:406:f8::19)
MIME-Version:	1.0
X-MS-Exchange-MessageSentRepresentingType:	1
X-MS-PublicTrafficType:	Email
X-MS-Office365-Filtering-Correlation-Id:	758cc7dc-ce9b-4908-5305-08d95e4c3650
X-MS-TrafficTypeDiagnostic:	BN8PR04MB6353:
X-Microsoft-Antispam-PRVS:	<BN8PR04MB63532C96E52A338B07A1D6E0D8FA9 AT BN8PR04MB6353 DOT namprd04 DOT prod DOT outlook DOT com>
X-MS-Oob-TLC-OOBClassifiers:	OLM:7219;
X-MS-Exchange-SenderADCheck:	1
X-MS-Exchange-AntiSpam-Relay:	0
X-Microsoft-Antispam:	BCL:0;
X-Microsoft-Antispam-Message-Info:	qCaiDPMxtno+wcQs5qkk+U0pzop2mySzI8sHJ/mLRJ+NaJ8xkF0MkNwB67it+umnAYJbpQR+588Qi3uLwdo8yVLkNj/mo867j/Mur2K1ePbxCqMxy1pxMYRPc0p1e9hgmDb28NBFzimQJTzQYGGTs+ytlggZIPK0PQtjYGLbTTPDPwNYhluyozqimem8zdOCtIs1sc24q+qFDV/Cavty8txMHXaw7IrfsPcWQt2wJYtP1D822b+PzBRr2SwtJO3LevW7owh2+vifjfbUnjAOoEsU0Vj5CGQrF6Fk6vEvezQ7dM50DgT8b1CqGVYxUz+yWVJsoGdzipL71dP1+6ZQ1dg25ASVjCKNY18U64/msUG0flfAYZMCvDwPLMgsW5/JEDHE4hVIGsFrgGCscvPtS158tqzrfkYVApNr03DXBajFzCAov9kbWgab1arhZUpVOuOCDuukYhvcvgPtf8jGqIcSrrPXnZRDFNL2X2huLp/BsgQBvqfUw+Ro3d437kAYkjE9WHy9PDOG90pZh4Bk7M7ufvWRLJGgkiXCEe7n+Xen9laKJWqQ4d2AhzTvT/a296sFa8yEArirtikoWhGI8osDC+iSF8caHQDEy4vwVb1x8mNzqtMREhUMDArzl/iG4aSPsp7WmEP+MzzdstZHA8XBZP7soPxXtdhleY/2QkAHxi29hQcHZBItqkQ3D2t0LT3+lTsjCYWIti35E+z6ZW8a6I6dkVYu5TybWcJ9TTQ=
X-Forefront-Antispam-Report:	CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;
	IPV:NLI; SFV:NSPM; H:BN7PR04MB4388.namprd04.prod.outlook.com; PTR:; CAT:NONE;
	SFS:(4636009)(366004)(31686004)(5660300002)(316002)(786003)(508600001)(83380400001)(53546011)(66556008)(66476007)(66946007)(2616005)(4744005)(38100700002)(8936002)(86362001)(75432002)(15650500001)(8676002)(6486002)(186003)(2906002)(31696002)(36756003)(45980500001)(43740500002);
	DIR:OUT; SFP:1102;
X-MS-Exchange-AntiSpam-MessageData-ChunkCount:	1
X-MS-Exchange-AntiSpam-MessageData-0:	=?Windows-1252?Q?+m/MFZcgWKxhX3+qG6D8LtX/qJzp6fYlItgKKRekjnEhRntUqsAqGw1A?=
	=?Windows-1252?Q?nPHyRP4G0HW2uZ7YvsdcTte2e4vNBUQLHhijeQ+tdO3/lGulza219xyU?=
	=?Windows-1252?Q?up8N7kedrZh6IyL1LslvSSSmWm1V8yKq6+jAJhSPUX6O/8l2B46wz6LB?=
	=?Windows-1252?Q?GrFLOjZMdR7QpvoXzIGiKxxmMTJqsmY2TpKKDzs/jPYNh55vPHA9xlNN?=
	=?Windows-1252?Q?yHKSSi4MlJFjsEWv45HQrHFSsw58bCOiKg0ZvPATEzYq24VTMlsJS5oU?=
	=?Windows-1252?Q?Y+9Ge1syJiu2YUo1Il3g8rlY2UPJyvBX6PSlkvobwaCKzNjBx0VrVOgI?=
	=?Windows-1252?Q?ZonfHjqK0fWoStKRHy/ojZ3xdc3pGOcXrPte/PwSvCuxz2x1RH/LH9y6?=
	=?Windows-1252?Q?CI7EeyV5atKApzWGWxW1yJQ8eth7GgnOK7dCTqvW+/Z0uKJJFzm7rJZL?=
	=?Windows-1252?Q?YAx+M4jzH2ii+NkbELW5EAtIMJSLHCIAntxmsZq2zf4xku7mow8ADUXK?=
	=?Windows-1252?Q?LB+ToGOxpSwgV+fGh/Gq5ZXleL80Sk4meglIiYPHrXcOewZe1IN8T0+7?=
	=?Windows-1252?Q?YJJUshSgIdM2aqthdVaZE3yiIAIIsc3JSFM+EDY9dorjb+XMpchwV8ZA?=
	=?Windows-1252?Q?SFOaqvUmNORDUgXkB91ZGQtB9ELBlyAxrOrNNGihfHNs1Mb8cUQhKDSA?=
	=?Windows-1252?Q?p2NhVWf6ei9o5kI2/O03tWdMFKyogSZcpGi/ojS+ron6QY9M63qDVD6q?=
	=?Windows-1252?Q?tMpbzrg48Lz8EWXOhw/tnCPlEoo4d+59w6C4pRUYXmbRIEl+5TtxnkiK?=
	=?Windows-1252?Q?W1rH+d3eSL4SJRAvS9brjrNpVSK9TmdH9miFK45biIKLw+b53X/gS+3d?=
	=?Windows-1252?Q?ibzeTNIUlcYxKS/zE7SNq43lrJ3moHFlgzldCkUudse9dJ8UHYszKndw?=
	=?Windows-1252?Q?uH2GMoN+XTErSSbBzV/BBa/R8IcMl63xhCfJQJajRDjOBFvP5C5Uolzu?=
	=?Windows-1252?Q?6h48RUH41sNvLkY31kzFwKljNooxCPDOB3XjHaMfj2jPHv2YwBpGR+/B?=
	=?Windows-1252?Q?G+ckWEYuB9CrE4aDIE8wxTyqejzMqxMsC0l/BZNLb56kcnJnXsvHXJlB?=
	=?Windows-1252?Q?vUh5FOtnXX9p4/w3TlIwohrYtCWbJW/tMEwv7TB259Ob0LAt5HNrs8lx?=
	=?Windows-1252?Q?62IMUDg2s+dQb1fhUlXIp9sQTqGDMAvqucRLyN0+Ny/SO6a0OzKfBoHO?=
	=?Windows-1252?Q?s4+igc0uOxsJdgE20Dy/VXN6NTlcV6P8OoFkRALzetKm88nYjumOT/9z?=
	=?Windows-1252?Q?qJwvt4wcG67fo0eMjPkg8h9zKXwCrH8+wKNx3YqH80GUheoMiuAf0sXK?=
	=?Windows-1252?Q?Ako230siunye1mP4GlGCm+GY2Etq/X3/BS4a1JBDXPyGLE9kFLG00xln?=
	=?Windows-1252?Q?P3vDqPVraNi6yc4JRCgw7mQq6ZSqu0eEvAY9rRTvk1a6AsPf7RbMovud?=
	=?Windows-1252?Q?KcBOMzx5?=
X-OriginatorOrg:	cornell.edu
X-MS-Exchange-CrossTenant-Network-Message-Id:	758cc7dc-ce9b-4908-5305-08d95e4c3650
X-MS-Exchange-CrossTenant-AuthSource:	BN7PR04MB4388.namprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs:	Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime:	13 Aug 2021 11:19:27.2624 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader:	Hosted
X-MS-Exchange-CrossTenant-Id:	5d7e4366-1b9b-45cf-8e79-b14b27df46e1
X-MS-Exchange-CrossTenant-MailboxType:	HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName:	ebHzzcf/awNnGSHyHsma3VrmJbUns0Obrre72Xmkdo4PzSUAdYIgZR8sgWTXAJZCaAuSXu11Uzv3FxeUK9Eo+g==
X-MS-Exchange-Transport-CrossTenantHeadersStamped:	BN8PR04MB6353
X-Spam-Status:	No, score=-3.1 required=5.0 tests=BAYES_00, DKIM_SIGNED,
	DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, NICE_REPLY_A,
	RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS,
	TXREP autolearn=ham autolearn_force=no version=3.4.4
X-Spam-Checker-Version:	SpamAssassin 3.4.4 (2020-01-24) on
	server2.sourceware.org
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.29
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From:	Ken Brown via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Ken Brown <kbrown AT cornell DOT edu>
Errors-To:	cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

On 8/12/2021 8:56 AM, sten DOT kristian DOT ivarsson AT gmail DOT com wrote:
> [snip]
> 
>>> I'm going to follow up on cygwin-developers.
>>
>> Great, I'll read about it there
> 
> Does anyone know anything about the progress of this issue ?

I'm afraid there has not been any progress.  We weren't able to find a solution 
using the existing AF_UNIX implementation.

The proposed implementation based on Windows named pipes (topic/af_unix branch) 
stalled because of an issue you reported, which I referred to as a performance 
problem.  But it's a pretty severe performance problem.

An alternative proposed by Mark Geisert based on Posix message queues 
(topic/af_unix_mq branch) also has issues, which may or may not be surmountable.

Sorry I don't have better news.

Ken

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -