[Mono-list] xsp as a daemon
peter
apvx95 at dsl.pipex.com
Wed Jan 4 16:49:44 EST 2006
Oleg Deribas wrote:
>> Could you, please, post your results here in case you'll have any
>> success?
>
OK people, here's the best I can do for the moment.
The attached script works to the extent that it reliably starts xsp,
unreliably shuts it down and makes a right royal mess of most of the
other things its supposed to do. I'm most concerned about the stop
functionality: it's really ugly, and flakey as well. However, I just
don't have any more time to spend on this. Sorry.
The thing that puzzles me most is the probe functionality - in
particular why it should start xsp after having printed the "not
supported" message. In fact, if you simply call the script without a
parameter, it still starts (or tries to start) xsp. I can't for the
life of me figure out why. But then again, as is abundantly clear from
the script, I'm not an expert at shell scripting.
Having said that, I copied the script to /etc/init.d and called insserv
on it and then restarted my machine. xsp starts up just fine and is
registered in YAST2 (i.e. YAST2 sees it and reports correctly on its
status). And pointing Firefox at localhost:8080 brings up the test
application(s).
Sorry I can't come up with a better script. If anyone else can, I'd be
very grateful...
Cheers
Peter
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#! /bin/sh
# Copyright (c) 1995-2004 SUSE Linux AG, Nuernberg, Germany.
# All rights reserved.
#
# Author: Kurt Garloff
# Please send feedback to http://www.suse.de/feedback/
#
# /etc/init.d/XSP
# and its symbolic link
# /(usr/)sbin/rcXSP
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# System startup script for service/daemon XSP
### BEGIN INIT INFO
# Provides: xsp
# Required-Start: $syslog $remote_fs $network
# Should-Start: $time ypbind sendmail
# Required-Stop: $syslog $remote_fs $network
# Should-Stop: $time ypbind sendmail
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Short-Description: xsp daemon providing xsp
# Description: Start xsp to provide xsp
# XSP is a basic web server for Mono
### END INIT INFO
# Check for missing binaries (stale symlinks should not happen)
# Note: Special treatment of stop for LSB conformance
XSP=/usr/bin/xsp
XSP_ROOT=/usr/lib/xsp/test
XSP_BIN=nohup $XSP --root $XSP_ROOT --applications /:. --nonstop &
test -x $XSP || { echo "$XSP not installed";
if [ "$1" = "stop" ]; then exit 0;
else exit 5; fi; }
# Shell functions sourced from /etc/rc.status:
# rc_check check and set local and overall rc status
# rc_status check and set local and overall rc status
# rc_status -v be verbose in local rc status and clear it afterwards
# rc_status -v -r ditto and clear both the local and overall rc status
# rc_status -s display "skipped" and exit with status 3
# rc_status -u display "unused" and exit with status 3
# rc_failed set local and overall rc status to failed
# rc_failed <num> set local and overall rc status to <num>
# rc_reset clear both the local and overall rc status
# rc_exit exit appropriate to overall rc status
# rc_active checks whether a service is activated by symlinks
. /etc/rc.status
# Reset status of this service
rc_reset
# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - user had insufficient privileges
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 8--199 - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
#
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.
case "$1" in
start)
echo -n "Starting XSP "
## Start daemon with startproc(8). If this fails
## the return value is set appropriately by startproc.
#
# Don't want startproc as we're using mono
# startproc $XSP_BIN
$XSP_BIN
# Remember status and be verbose
rc_status -v
;;
stop)
echo -n "Shutting down XSP "
## Stop daemon with killproc(8) and if this fails
## killproc sets the return value according to LSB.
# killproc -TERM $XSP_BIN
XSP_PROC=`ps -eo pid,cmd | grep /usr/lib/xsp/1.0/xsp.exe | grep -v grep | cut -d ' ' -f1`
if [ -z "$XSP_PROC" ]
then
XSP_PROC=`ps -eo pid,cmd | grep /usr/lib/xsp/1.0/xsp.exe | grep -v grep | cut -d ' ' -f2`
fi
if [ -n "$XSP_PROC" ]
then
kill -9 $XSP_PROC
else
exit 7
fi
# Remember status and be verbose
rc_status -v
;;
try-restart|condrestart)
## Do a restart only if the service was active before.
## Note: try-restart is now part of LSB (as of 1.9).
## RH has a similar command named condrestart.
if test "$1" = "condrestart"; then
echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
fi
$0 status
if test $? = 0; then
$0 restart
else
rc_reset # Not running is not a failure.
fi
# Remember status and be quiet
rc_status
;;
restart)
## Stop the service and regardless of whether it was
## running or not, start it again.
$0 stop
$0 start
# Remember status and be quiet
rc_status
;;
force-reload)
## Signal the daemon to reload its config. Most daemons
## do this on signal 1 (SIGHUP).
## If it does not support it, restart.
echo -n "Reload service XSP "
## if it supports it:
#killproc -HUP $XSP_BIN
#touch /var/run/XSP.pid
#rc_status -v
## Otherwise:
$0 try-restart
rc_status
;;
reload)
## Like force-reload, but if daemon does not support
## signaling, do nothing (!)
# If it supports signaling:
echo -n "Reload service XSP "
#killproc -HUP $XSP_BIN
#touch /var/run/XSP.pid
#rc_status -v
## Otherwise if it does not support reload:
rc_failed 3
rc_status -v
;;
status)
echo -n "Checking for service XSP "
## Check status with checkproc(8), if process is running
## checkproc will return with exit status 0.
# Return value is slightly different for the status command:
# 0 - service up and running
# 1 - service dead, but /var/run/ pid file exists
# 2 - service dead, but /var/lock/ lock file exists
# 3 - service not running (unused)
# 4 - service status unknown :-(
# 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)
# NOTE: checkproc returns LSB compliant status values.
#checkproc $XSP_BIN
# NOTE: rc_status knows that we called this init script with
# "status" option and adapts its messages accordingly.
XSP_PROC=`ps -eo pid,cmd | grep /usr/lib/xsp/1.0/xsp.exe | grep -v grep | cut -d ' ' -f1`
if [ -z $XSP_PROC ]
then
XSP_PROC=`ps -eo pid,cmd | grep -v grep | grep /usr/lib/xsp/1.0/xsp.exe | cut -d ' ' -f2`
fi
if [ -n "$XSP_PROC" ]
then
return 0
else
return 1
fi
rc_status -v
;;
probe)
## Optional: Probe for the necessity of a reload, print out the
## argument to this init script which is required for a reload.
## Note: probe is not (yet) part of LSB (as of 1.9)
#test /etc/XSP/XSP.conf -nt /var/run/XSP.pid && echo reload
echo "Probe is not supported"
rc_failed 3
rc_status -v
;;
*)
echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
exit 1
;;
esac
rc_exit
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