More threaded I/O VM work + Redis init script

utils/redis_init_script

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+REDISPORT=6379
+EXEC=/usr/local/bin/redis-server
+
+PIDFILE=/var/run/redis_${REDISPORT}.pid
+CONF="/etc/redis/${REDISPORT}.conf"
+
+case "$1" in
+    start)
+        if [ -f $PIDFILE ]
+        then
+                echo -n "$PIDFILE exists, process is already running or crashed\n"
+        else
+                echo -n "Starting Redis server...\n"
+                $EXEC $CONF
+        fi
+        ;;
+    stop)
+        if [ ! -f $PIDFILE ]
+        then
+                echo -n "$PIDFILE does not exist, process is not running\n"
+        else
+                echo -n "Stopping ...\n"
+                echo -n "Sending SHUTDOWN\r\n" | nc localhost $REDISPORT &
+                PID=$(cat $PIDFILE)
+                while [ -x /proc/${PIDFILE} ]
+                do
+                    echo "Waiting for Redis to shutdown ..."
+                    sleep 1
+                done
+                rm $PIDFILE
+                echo "Redis stopped"
+        fi
+        ;;
+esac