Snail/usr/local/bin/nvrun

#!/bin/sh

LOCK_FILE=/tmp/.snail.nvrun.lock
NVRUN=snail.nvrun

(
        let i=16
        while [ 0 -lt $i ]; do
		flock -n 9
		status=$?

		if [[ 0 -ne $status && 5 -eq $i ]]; then
			echo "Cann't lock $COUNT_FILE. Exiting..."
			exit -1

		elif [ 0 -eq $status ]; then
			break
		fi

                sleep 0.01
                let i--
	done

	snail.nvstat || snail.nvon

	if [ 0 -ne $? ]; then
		echo "Cann't switch on nVidia graphics. Exiting..."
		exit -1
	fi

) 9>$LOCK_FILE || exit $?

snail.nvrun "$@"

(
        let i=16
        while [ 0 -lt $i ]; do
		flock -n 9
		status=$?

		if [[ 0 -ne $status && 5 -eq $i ]]; then
			echo "Cann't lock $COUNT_FILE. Exiting..."
			exit -1

		elif [ 0 -eq $status ]; then
			break
		fi

                sleep 0.01
                let i--
	done

	pgrep $NVRUN &>/dev/null

	if [ 0 -eq $? ]; then
		echo "Other applications still use nVidia chip. So we aren't switching off it, just exiting..."
		exit 0
	else
		snail.nvoff
		[ 0 -ne $? ] && echo "Error: Cann't switch off nVidia graphics. Exiting..." && exit -1
		echo "nVidia chip powered off."
		exit 0
	fi

) 9>$LOCK_FILE

exit $?