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|
#!/bin/bash
# This file is used for scripts that demonstrate pyvcp
# The scripts typically use an extension of .demo
# 1) start realtime
# 2) run pyvcp with supplied xml and hal files
# 3) stop realtime
prog=$(basename $0)
function usage () {
cat <<EOF
Usage:
$prog filename1.xml filename2.hal [compname]
If not provided, use compname == pyvcp
EOF
exit 1
} ;# usage
function popup () {
msg="$*"
wish <<EOF &
wm withdraw .
tk_messageBox \
-title "$prog" \
-message "$msg" \
-icon error \
-type ok
destroy .
EOF
} ;# popup
# begin----------------------------------------------------
REALTIME=$(linuxcnc_var REALTIME)
$REALTIME status >/dev/null
status=$?
if [ $status = 0 ] ; then
msg="$prog: Realtime is already active"
echo "$msg"
popup "$msg"
exit 1
else
$REALTIME start
fi
case $# in
0|1) usage;;
2) XMLFILE=${1}
HALFILE=${2}
COMPNAME=pyvcp
;;
3) XMLFILE=${1}
HALFILE=${2}
COMPNAME=${3}
;;
*) usage;;
esac
if [ ! -z "$debug" ] ; then
echo debug=$debug
echo REALTIME=$REALTIME
echo XMLFILE=$XMLFILE
echo HALFILE=$HALFILE
echo COMPNAME=$COMPNAME
fi
cd $(dirname "$XMLFILE") ;# to allow relative includes
pyvcp -c $COMPNAME $XMLFILE &
pyvcpjob=$!
ct=0
# wait for pins to be created before creating signals
while true ; do
halcmd show|grep "${COMPNAME}.*ready" >/dev/null 2>&1
status=$?
sleep 1
if [ $status == 0 ] ; then
#echo "ready after ct=$ct"
break
fi
if [ $ct -ge 10 ] ; then
echo "$0: hal-pyvcp startup failed"
exit 1
fi
ct=$(($ct+1))
done
cd $(dirname "$HALFILE") ;# so HALFILE can source relative files
halmsg=$(halcmd -f $HALFILE 2>&1)
halstatus=$?
if [ $halstatus != 0 ] ; then
IFS=$'\n' # split lines
newmsg=
# put extra blank line between lines of output
for line in $halmsg ; do
newmsg="$newmsg
$line
"
done
popup "$newmsg"
kill $pyvcpjob
exit 1
fi
wait $pyvcpjob
halrun -U
exit 0
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