#!/bin/sh
#
# benchmark-bf.sh 
#
# Sends benchmark_rt data to the BB Display
# Also computes alerts using benchmark-alert.pl script
#

# Global Variables:
MET=benchmark
OUT=/tmp/benchmark.$$
STATUS=green

# Please give here the name of the dump file used
# by benchmark_rt to store the data (see in the Apache
# configuration file)
DUMPNAME=/tmp/benchmark.dump
HLPPGM=benchmark_rt
ALERTPGM=bf/benchmark-alert.pl

# -------------------------------------------------
# 1-Check 'benchmark_rt' exists:
# -------------------------------------------------

rm -f $DUMPNAME

# We could also have check with the PID stored in
# /tmp/benchmark.pid, but this is a safer method:
#killall -USR1 $HLPPGM
killall -USR2 $HLPPGM

# USR1 dumps all the URI requested since the start
# USR2 dumps only the URI requested since the last dump

# Wait til the file is generated (a bit ugly...)
sleep 2

if [ ! -s "$DUMPNAME" ]
then
	# -----------------------------
	# 2a-Error handling:
	# -----------------------------
	STATUS=red
	cat <<END > $OUT
The 'benchmark_rt' process did not produce any statistics.
Please, check it is well running.
END
else

	# -----------------------------------
	# 2b-Read the data to be sent to BB:
	# -----------------------------------

	# But before, we call the alerter process that will
	# determine for which URIs the response time reached
	# the thresholds:
	$ALERTPGM $DUMPNAME
	case "$?" in
		0) STATUS=green;;
		1) STATUS=yellow;;
		2) STATUS=red;;
		*) STATUS=red
			cat <<END > $OUT
The alerter program 'benchmark-alert.pl' returned an unknown error code.
END
			DUMPNAME=$OUT
			;;
	esac

	OUT=$DUMPNAME 
fi

# ---------------------------------------
# 8-Send the results to the BB Display:
# ---------------------------------------

if [ "$LARRDCOMM" = DATA ]
then
        $BB $BBDISP "data ${MACHINE}.$MET
`$CAT $OUT`"

else
        $BB $BBDISP "status ${MACHINE}.$MET $STATUS `date`  <$MET>
`$CAT $OUT`"

fi

# --------------
# 9-Cleanup...
# --------------

if [ "$OUT" != "$DUMPNAME" ]
then
	rm $OUT 
fi

# EOF