add missing copyright statements and doc for sv
This commit is contained in:
Denis Vlasenko
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/*
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Copyright (c) 2001-2006, Gerrit Pape
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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@ -1,3 +1,30 @@
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/*
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Copyright (c) 2001-2006, Gerrit Pape
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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150
runit/sv.c
150
runit/sv.c
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/*
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Copyright (c) 2001-2006, Gerrit Pape
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Taken from http://smarden.sunsite.dk/runit/sv.8.html:
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sv - control and manage services monitored by runsv
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sv [-v] [-w sec] command services
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/etc/init.d/service [-w sec] command
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The sv program reports the current status and controls the state of services
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monitored by the runsv(8) supervisor.
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services consists of one or more arguments, each argument naming a directory
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service used by runsv(8). If service doesn?t start with a dot or slash,
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it is searched in the default services directory /var/service/, otherwise
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relative to the current directory.
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command is one of up, down, status, once, pause, cont, hup, alarm, interrupt,
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1, 2, term, kill, or exit, or start, stop, restart, shutdown, force-stop,
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force-reload, force-restart, force-shutdown.
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The sv program can be sym-linked to /etc/init.d/ to provide an LSB init
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script interface. The service to be controlled then is specified by the
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base name of the "init script".
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status
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Report the current status of the service, and the appendant log service
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if available, to standard output.
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up
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If the service is not running, start it. If the service stops, restart it.
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down
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If the service is running, send it the TERM signal, and the CONT signal.
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If ./run exits, start ./finish if it exists. After it stops, do not
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restart service.
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once
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If the service is not running, start it. Do not restart it if it stops.
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pause cont hup alarm interrupt quit 1 2 term kill
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If the service is running, send it the STOP, CONT, HUP, ALRM, INT, QUIT,
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USR1, USR2, TERM, or KILL signal respectively.
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exit
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If the service is running, send it the TERM signal, and the CONT signal.
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Do not restart the service. If the service is down, and no log service
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exists, runsv(8) exits. If the service is down and a log service exists,
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send the TERM signal to the log service. If the log service is down,
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runsv(8) exits. This command is ignored if it is given to an appendant
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log service.
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sv actually looks only at the first character of above commands.
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status
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Same as status.
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start
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Same as up, but wait up to 7 seconds for the command to take effect.
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Then report the status or timeout. If the script ./check exists in
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the service directory, sv runs this script to check whether the service
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is up and available; it's considered to be available if ./check exits
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with 0.
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stop
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Same as down, but wait up to 7 seconds for the service to become down.
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Then report the status or timeout.
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restart
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Send the commands term, cont, and up to the service, and wait up to
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7 seconds for the service to restart. Then report the status or timeout.
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If the script ./check exists in the service directory, sv runs this script
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to check whether the service is up and available again; it's considered
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to be available if ./check exits with 0.
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shutdown
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Same as exit, but wait up to 7 seconds for the runsv(8) process
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to terminate. Then report the status or timeout.
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force-stop
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Same as down, but wait up to 7 seconds for the service to become down.
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Then report the status, and on timeout send the service the kill command.
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force-reload
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Send the service the term and cont commands, and wait up to
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7 seconds for the service to restart. Then report the status,
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and on timeout send the service the kill command.
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force-restart
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Send the service the term, cont and up commands, and wait up to
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7 seconds for the service to restart. Then report the status, and
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on timeout send the service the kill command. If the script ./check
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exists in the service directory, sv runs this script to check whether
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the service is up and available again; it?s considered to be available
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if ./check exits with 0.
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force-shutdown
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Same as exit, but wait up to 7 seconds for the runsv(8) process to
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terminate. Then report the status, and on timeout send the service
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the kill command.
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Additional Commands
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check
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Check for the service to be in the state that's been requested. Wait up to
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7 seconds for the service to reach the requested state, then report
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the status or timeout. If the requested state of the service is up,
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and the script ./check exists in the service directory, sv runs
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this script to check whether the service is up and running;
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it's considered to be up if ./check exits with 0.
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Options
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-v
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wait up to 7 seconds for the command to take effect.
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Then report the status or timeout.
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-w sec
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Override the default timeout of 7 seconds with sec seconds. Implies -v.
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Environment
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SVDIR
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The environment variable $SVDIR overrides the default services directory
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/var/service.
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SVWAIT
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The environment variable $SVWAIT overrides the default 7 seconds to wait
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for a command to take effect. It is overridden by the -w option.
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Exit Codes
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sv exits 0, if the command was successfully sent to all services, and,
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if it was told to wait, the command has taken effect to all services.
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For each service that caused an error (e.g. the directory is not
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controlled by a runsv(8) process, or sv timed out while waiting),
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sv increases the exit code by one and exits non zero. The maximum
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is 99. sv exits 100 on error.
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*/
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* Busyboxed by Denis Vlasenko <vda.linux@googlemail.com> */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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/* TODO: depends on runit_lib.c - review and reduce/eliminate */
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