Udo Richter wrote:
> C.Y.M wrote:
>> Yes, I like the idea of backgrounding VDR using "&" and then using
>> 'wait $PID'.
>> Is that the method you use? I've been trying to find the best way to
>> do this.
>> Could you give me an example? :)
>
> Something like that. This is a snippet of my overgrown runvdr script:
>
> # Run VDR
> eval "$VDRCMD &"
>
> # Remember PID of VDR process
> PID=$!
>
> # Wait for VDR to end or signal to arrive
> wait $PID
>
> # Remember return value of VDR
> RET=$?
>
> The reason I do it this way is that I also handle some signals sent to
> runvdr, to terminate or restart on demand.
> If you want to start something in parallel, its probably no big
> difference whether you start your script before or after VDR, as long as
> you background it. You can background within a script like this:
>
> {
> sleep 1s
> echo -n world
> } &
> echo -n "hello "
> sleep 2s
> echo .
>
>> For now, I'm just trying to send a MESG via svdrpsend.pl to VDR so it
>> displays a
>> welcome message after starting up and initializing its plugins.
>
> You can wait for the SVDRP socket to accept connections, that would be
> one way to wait for a mainly running VDR.
>
Thanks a lot Udo. Those examples really helped. Here is what I have done...
BR.
-------------- next part --------------
#!/bin/sh
# insmod modules from current directory without having to install them first
# KERNELVER=`uname -r`
# KERNELDIR="/lib/modules/$KERNELVER/misc"
sync
function DriverLoaded()
{
grep -qse dvb[-_]core /proc/modules
}
DEVTIMEOUT=10
LOOP=0
case "$1" in
load)
if ! DriverLoaded; then
echo -e "Inserting DVB modules into kernel. \n"
# STARTTIME=$(date +%s)
# av7110 based "full featured" cards
modprobe stv0299
# saa7146 based siemens/technotrend/hauppauge cards
modprobe dvb-ttpci
# wait for udev to create the devices before continuing
until [ -e /dev/dvb/adapter0/video0 ] || [ $LOOP -eq $DEVTIMEOUT ] ; do
sleep 1
LOOP=$((LOOP+1))
done
if [ $LOOP -eq $DEVTIMEOUT ]; then
echo -e "Creation of /dev/dvb/adapter0/video0 has timed out in $DEVTIMEOUT seconds. Check UDEV or rebuild drivers. \n"
exit 1
fi
# FINISHTIME=$(date +%s)
# RESULTTIME=$((FINISHTIME - STARTTIME))
# echo -e "DVB device created in $RESULTTIME second(s). \n"
if [ -e "/usr/local/bin/loadkeys/av7110_loadkeys" ]; then
/usr/local/bin/loadkeys/av7110_loadkeys /usr/local/bin/loadkeys/hauppauge_grey.rc5 > /proc/av7110_ir
sleep 1
fi
else
echo -e "DVB Drivers already loaded. \n"
fi
;;
debug)
if ! DriverLoaded; then
echo -e "Inserting DVB modules (debug) into kernel. \n"
# STARTTIME=$(date +%s)
# av7110 based "full featured" cards
modprobe stv0299 debug_switch_timing=1
# saa7146 based siemens/technotrend/hauppauge cards
modprobe dvb-ttpci debug=247
until [ -e /dev/dvb/adapter0/video0 ] || [ $LOOP -eq $DEVTIMEOUT ] ; do
sleep 1
LOOP=$((LOOP+1))
done
if [ $LOOP -eq $DEVTIMEOUT ]; then
echo -e "Creation of /dev/dvb/adapter0/video0 has timed out in $DEVTIMEOUT seconds. Check UDEV or rebuild drivers. \n"
exit 1
fi
# FINISHTIME=$(date +%s)
# RESULTTIME=$((FINISHTIME - STARTTIME))
# echo -e "DVB device created in $RESULTTIME second(s). \n"
if [ -e "/usr/local/bin/loadkeys/av7110_loadkeys" ]; then
/usr/local/bin/loadkeys/av7110_loadkeys /usr/local/bin/loadkeys/hauppauge_grey.rc5 > /proc/av7110_ir
sleep 1
fi
else
echo -e "DVB Drivers already loaded. \n"
fi
;;
unload)
if DriverLoaded; then
echo -e "Removing DVB modules from kernel. \n"
rmmod ves1x93 dvb_ttpci saa7146_vv video_buf saa7146 videodev v4l1_compat \
v4l2_common ttpci_eeprom stv0299 dvb_core
echo
else
echo -e "DVB Drivers not loaded. \n"
fi
;;
reload)
$0 unload && $0 load
;;
*)
echo "Usage$0 {load|unload|debug|reload}"
exit 1
esac
sync
-------------- next part --------------
#!/bin/sh
# runvdr: Loads the DVB driver and runs VDR
#
# If VDR exits abnormally, the driver will be reloaded
# and VDR restarted.
#
# In order to actually use this script you need to implement
# the functions DriverLoaded(), LoadDriver() and UnloadDriver()
# and maybe adjust the VDRPRG and VDRCMD to your particular
# requirements.
#
# Since this script loads the DVB driver, it must be started
# as user 'root'. Add the option "-u username" to run VDR
# under the given user name.
#
# Any command line parameters will be passed on to the
# actual 'vdr' program.
#
# See the main source file 'vdr.c' for copyright information and
# how to reach the author.
#
# $Id: runvdr 1.19 2006/05/14 16:02:05 kls Exp $
## Start Configuration Section ##
# Disable NPTL (recommended)
export LD_ASSUME_KERNEL=2.4.1
#export LD_ASSUME_KERNEL=2.4.19
# Uncomment to disable UTF-8 within VDR
#export LANG=en_US
#export LC_CTYPE=iso_8859_1
PLUGINS="-Premote -Pscreenshot -Pepgsearch -Pprefermenu -Pdvdselect -Pvcd -Pfemon -Ptaste -Pstreamdev-server -Pstreamplayer -Ptext2skin -Pyaepg -Pundelete -Pweatherng -Posdpip -Pmplayercluster -Peggtimer -Psysinfo -Pradioinfo -P'mp3 -C /etc/vdr -m /etc/vdr/plugins/mount.sh -i /etc/vdr/plugins/image_convert.sh -c /etc/vdr/images' -P'dvd -C/dev/cdrom' -P'mplayer -M /etc/vdr/plugins/mplayer.sh -m /etc/vdr/plugins/mount.sh' -P'xine -r -X 720 -Y 480'"
# VDR Recording directory (default is usually /video)
VIDEO_DIR="/video"
# VDR Configuration directory where setup.conf lives
CFG_DIR="/etc/vdr"
# Where the VDR epg.data file lives
EPG_DIR="/etc/vdr"
# Search path for VDR plugins
PLUG_DIR="/usr/local/bin/PLUGINS/lib"
# Startup Options passed to VDR
OPTIONS="--terminal=/dev/tty8 -l 3 -w 0 --grab=/tmp"
# Path to VDR binary
VDRPRG="/usr/local/bin/vdr"
# Path to insdvb.sh (for loading dvb modules)
INSDVB="/usr/local/bin/insdvb.sh"
# Path to svdrpsend.pl
SVDRP="/usr/local/bin/svdrpsend.pl"
# Path to mplayer
MPLAY="/usr/bin/mplayer"
# Path to startup video
VIDEO="/etc/vdr/VDRboot-NTSC.mpeg"
# Number of times runvdr will attempt to restart vdr after a crash has occured (set to 0 for no limit)
MAXTRIES=10
# Minimum runtime required (in seconds) for vdr to continue restart attempts
MINRUN=20
## End Configuration Section ##
if [ ! -e "/lib/modules/`uname -r`/kernel/drivers/media/video/videodev.ko" ]; then
echo -e "ERROR: No DVB kernel modules detected. VDR will not attempt to start. \n"
exit 0
fi
if [ ! -e "${INSDVB}" ]; then
echo -e "ERROR: ${INSDVB} was not detected. Exiting. \n"
exit 0
fi
if [ ! -e "${SVDRP}" ]; then
echo -e "ERROR: ${SVDRP} was not detected. Exiting. \n"
exit 0
fi
VDRCMD="$VDRPRG -v $VIDEO_DIR -E $EPG_DIR -c $CFG_DIR -L $PLUG_DIR $OPTIONS $PLUGINS"
KILL="/usr/bin/killall -q -TERM"
# Detect whether the DVB driver is already loaded
# and return 0 if it *is* loaded, 1 if not:
function DriverLoaded()
{
grep -qse dvb[-_]core /proc/modules
}
# Load all DVB driver modules needed for your hardware:
function LoadDriver()
{
${INSDVB} load
if [ -e "${MPLAY}" ] && [ -e "${VIDEO}" ] ; then
${MPLAY} -frames 145 -vo mpegpes -ao mpegpes ${VIDEO} 2>/dev/null 1>/dev/null
fi
}
# Unload all DVB driver modules loaded in LoadDriver():
function UnloadDriver()
{
${INSDVB} unload
}
# Load driver if it hasn't been loaded already:
if ! DriverLoaded; then
LoadDriver
fi
LASTRESTART=$(date +%s)
LOOPCOUNT=0
while (true) do
if [ $LOOPCOUNT -le $MAXTRIES ] || [ $MAXTRIES -eq 0 ] ; then
eval "$VDRCMD &"
# Wait for VDR to initialize then do rest
sleep 10
${SVDRP} -d localhost "MESG VDR Startup Sequence Completed" 2>/dev/null 1>/dev/null
touch /tmp/VDRBOOT_COMPLETE
else
$KILL runvdr
fi
# Remember PID of VDR process
PID=$!
# Wait for VDR to end or signal to arrive
wait $PID
# Remember return value of VDR
RET=$?
if test $RET -eq 0 -o $RET -eq 2; then exit; fi
TIMEOFDEATH=$(date +%s)
RUNTIME=$((TIMEOFDEATH - LASTRESTART))
if [ $TIMEOFDEATH -le $(($LASTRESTART + $MINRUN)) ] ; then
echo "`date` VDR crashed in $RUNTIME seconds. Minimum required runtime for VDR is $MINRUN seconds. Killing runvdr process..."
$KILL runvdr
fi
echo "`date` Reloading DVB drivers"
$KILL vdr
sleep 10
UnloadDriver
LoadDriver
LASTRESTART=$(date +%s)
LOOPCOUNT=$((LOOPCOUNT+1))
echo "`date` Restarting VDR $LOOPCOUNT time(s). Maximum retries set to $MAXTRIES"
done
-------------- next part --------------
# /etc/default/vdrc
# Default VDR startup config
# Change to 1 to enable vdr's init-script
ENABLED=1
# Location of svdrpsend.pl
SVDRP="/usr/local/bin/svdrpsend.pl"
# Location of module loading script
INSDVB="/usr/local/bin/insdvb.sh"
# DVB Device creation timeout (in seconds)
TIMEOUT=45
-------------- next part --------------
#! /bin/sh
#
# vdr start-stop script
#
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME="runvdr"
DESC="VDR - Linux Video Disk Recorder"
DAEMON="vdr"
ENABLED=0
test -f /etc/default/vdrc && . /etc/default/vdrc
test "$ENABLED" != "0" || exit 0
rm -f /tmp/VDRBOOT_COMPLETE
if [ ! -e "/lib/modules/`uname -r`/kernel/drivers/media/video/videodev.ko" ]; then
echo -e "ERROR: No DVB kernel modules detected. VDR will not attempt to start. \n"
exit 0
fi
LOOP=0
case "$1" in
start)
if ! ps -C vdr > /dev/null 2>&1; then
echo -e "Starting $DESC: $NAME. \n"
runvdr &
until [ -e /tmp/VDRBOOT_COMPLETE ] || [ $LOOP -eq $TIMEOUT ] ; do
sleep 1
LOOP=$((LOOP+1))
done
if [ $LOOP -eq $TIMEOUT ]; then
echo -e "VDR startup sequence has timed out in $TIMEOUT seconds. VDR will not start. \n"
exit 1
fi
echo -e "VDR startup time was $LOOP second(s). \n"
echo -e "VDR startup sequence completed. \n"
else
echo -e "VDR is already running..\n"
fi
;;
stop)
if ps -C vdr > /dev/null 2>&1; then
echo -e "Stopping $DESC: $NAME. \n"
${SVDRP} -d localhost "MESG VDR Shutdown Sequence Initialized" 2>/dev/null 1>/dev/null
sleep 3
killall -q -TERM $NAME
killall -q -TERM $DAEMON
sleep 5
${INSDVB} unload
else
echo -e "VDR is not running. \n"
fi
;;
restart|force-reload)
if ps -C vdr > /dev/null 2>&1; then
echo -e "Restarting $DESC: $NAME. \n"
${SVDRP} -d localhost "MESG VDR Restart Sequence Initialized" 2>/dev/null 1>/dev/null
sleep 3
killall -q -TERM $NAME
killall -q -TERM $DAEMON
sleep 5
${INSDVB} unload
sleep 2
runvdr &
until [ -e /tmp/VDRBOOT_COMPLETE ] || [ $LOOP -eq $TIMEOUT ] ; do
sleep 1
LOOP=$((LOOP+1))
done
if [ $LOOP -eq $TIMEOUT ]; then
echo -e "VDR startup sequence has timed out in $TIMEOUT seconds. VDR will not start. \n"
exit 1
fi
echo -e "VDR startup time was $LOOP second(s). \n"
echo -e "VDR startup sequence completed. \n"
else
echo -e "VDR is not running. \n"
fi
;;
*)
N=/etc/init.d/$NAME
echo "Use: $N {start|stop|restart|force-reload}" >&2
exit 1
;;
esac
rm -f /tmp/VDRBOOT_COMPLETE
exit 0
