From owner-svn-src-all@freebsd.org Tue Sep 22 23:01:45 2020 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 32D843E3817; Tue, 22 Sep 2020 23:01:45 +0000 (UTC) (envelope-from imp@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BwxdP0dTxz3Zfp; Tue, 22 Sep 2020 23:01:45 +0000 (UTC) (envelope-from imp@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id ED264268E8; Tue, 22 Sep 2020 23:01:44 +0000 (UTC) (envelope-from imp@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 08MN1iFN075869; Tue, 22 Sep 2020 23:01:44 GMT (envelope-from imp@FreeBSD.org) Received: (from imp@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 08MN1ikb075868; Tue, 22 Sep 2020 23:01:44 GMT (envelope-from imp@FreeBSD.org) Message-Id: <202009222301.08MN1ikb075868@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: imp set sender to imp@FreeBSD.org using -f From: Warner Losh Date: Tue, 22 Sep 2020 23:01:44 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366024 - head/share/man/man9 X-SVN-Group: head X-SVN-Commit-Author: imp X-SVN-Commit-Paths: head/share/man/man9 X-SVN-Commit-Revision: 366024 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Sep 2020 23:01:45 -0000 Author: imp Date: Tue Sep 22 23:01:44 2020 New Revision: 366024 URL: https://svnweb.freebsd.org/changeset/base/366024 Log: Add a devctl_process_running man page. Reviewed by: bcr Differential Revision: https://reviews.freebsd.org/D26520 Added: head/share/man/man9/devctl_process_running.9 (contents, props changed) Modified: head/share/man/man9/Makefile Modified: head/share/man/man9/Makefile ============================================================================== --- head/share/man/man9/Makefile Tue Sep 22 22:54:54 2020 (r366023) +++ head/share/man/man9/Makefile Tue Sep 22 23:01:44 2020 (r366024) @@ -121,6 +121,7 @@ MAN= accept_filter.9 \ DEVICE_SHUTDOWN.9 \ DEV_MODULE.9 \ dev_refthread.9 \ + devctl_process_running.9 \ devstat.9 \ devtoname.9 \ disk.9 \ Added: head/share/man/man9/devctl_process_running.9 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/share/man/man9/devctl_process_running.9 Tue Sep 22 23:01:44 2020 (r366024) @@ -0,0 +1,60 @@ +.\" +.\" Copyright (c) 2020 M Warner Losh +.\" +.\" This program is free software. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, +.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd September 22, 2020 +.Dt DEVCTL_PROCESS_RUNNING 9 +.Os +.Sh NAME +.Nm devctl_process_running +.Nd Returns true when devctl has a consumer process running +.Sh SYNOPSIS +.In sys/devctl.h +.Ft bool +.Fn devctl_process_running "void" +.Sh DESCRIPTION +The +.Nm +call returns +.Vt true +when a process has the devctl device open for +reading, and +.Vt false +otherwise. +One can assume from this that the default +.Xr devd 8 +or similar is running when +.Vt true +is returned. +Some subsystems will send a message and allow userland to do something +before proceeding with a default action if there's a timeout. +This call allows those subsystems to do the default action right away +when no process is running. +.Sh SEE ALSO +.Xr devd 8 +.Sh AUTHORS +This manual page was written by +.An M. Warner Losh