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 _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
