fifo/lock fixes

etc/init.d/snail-watcher

@@ -1,8 +1,9 @@
 #!/sbin/runscript
 
-DAEMON="/usr/local/sbin/snail.watcher"
+DAEMON="/usr/local/sbin/snail.watcher.sh"
 DAEMON_ARGS=""
 PIDFILE=/var/run/snail.pid
+#PATH=/usr/local/sbin:/usr/local/bin:$PATH
 PATH=$PATH:/usr/local/bin
 
 depend() {
@@ -11,16 +12,19 @@ depend() {
 
 start() {
         ebegin "Starting ${SVCNAME}"
-        start-stop-daemon -m -b --start --exec $DAEMON \
-            --pidfile $PIDFILE \
-            -- $DAEMON_ARGS
+        start-stop-daemon --make-pidfile \
+			  --background \
+                          --start \
+                          --exec $DAEMON \
+                          --pidfile $PIDFILE \
+                          -- $DAEMON_ARGS
         eend $?
 }
 
 stop() {
         ebegin "Stopping ${SVCNAME}"
-        start-stop-daemon --stop --exec $DAEMON \
-            --pidfile $PIDFILE
+        start-stop-daemon --stop \
+                          --exec $DAEMON \
+                          --pidfile $PIDFILE
         eend $?
 }
-

usr/local/bin/nvrun

@@ -2,7 +2,7 @@
 
 PATH=/usr/local/sbin:/usr/local/bin:$PATH
 
-TIMEOUT=5           # wait timeout for X server start
+TIMEOUT=10           # wait timeout for X server start
 let INTEL_IF_FAIL=1 # run on Intel if nVidia fails
 
 SERVICE=/etc/init.d/snail-xserver
@@ -13,7 +13,7 @@ FIFO_FILE=/tmp/.snail.fifo
 
 
 {
-  echo -n >$FIFO_FILE
+  echo -n > $FIFO_FILE &
   flock -w $TIMEOUT -s 9
 
   if [ 0 -eq $? ]; then
@@ -27,4 +27,6 @@ FIFO_FILE=/tmp/.snail.fifo
 	echo "Application $@ was performed on Intel"
   fi
 
-} 9 > $LOCK_FILE
+  flock -u 9
+
+} 9>$LOCK_FILE

usr/local/sbin/snail.watcher

@@ -1,31 +0,0 @@
-#!/bin/bash
-
-PATH=/usr/local/sbin:/usr/local/bin:$PATH
-
-SERVICE=/etc/init.d/snail-xserver
-PROC=nvrun
-
-LOCK_FILE=/tmp/.snail.lock
-FIFO_FILE=/tmp/.snail.fifo
-
-$SERVICE stop && snail.nv_pwr_off # stop X service
-
-touch $LOCK_FILE && chown 0:0 $LOCK_FILE # create lock file
-rm -f $FIFO_FILE && mkfifo --mode 640 $FIFO_FILE && chgrp video $FIFO_FILE # create fifo
-
-{
-  echo >$FIFO_FILE | cat <$FIFO_FILE >/dev/null # flush fifo
-  flock -n 9 # make exclusive lock
-
-  while [ 1 ]; do
-    cat <$FIFO_FILE >/dev/null
-    flock -u 9 # unlock to get access for clients
-    flock -n 9
-    if [ 0 -ne $? ]; then # test is $LOCK_FILE locked by any client
-      snail.nv_pwr_on && $SERVICE start # starting X server
-      flock 9
-      echo >$FIFO_FILE | cat <$FIFO_FILE >/dev/null # flush fifo
-      $SERVICE stop && snail.nv_pwr_off # stopping X server
-    fi
-  done
-} 9 > $LOCK_FILE

usr/local/sbin/snail.watcher.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+PATH=/usr/local/sbin:/usr/local/bin:$PATH
+
+SERVICE=/etc/init.d/snail-xserver
+PROC=nvrun
+
+LOCK_FILE=/tmp/.snail.lock
+FIFO_FILE=/tmp/.snail.fifo
+
+$SERVICE stop && snail.nv_pwr_off # stop X service
+
+touch $LOCK_FILE && chown root:video $LOCK_FILE && chmod 660 $LOCK_FILE # create lock file
+rm -f $FIFO_FILE && mkfifo --mode 660 $FIFO_FILE && chgrp video $FIFO_FILE # create fifo
+
+{
+  echo >$FIFO_FILE | cat $FIFO_FILE >/dev/null # flush fifo
+  flock -n 9 # make exclusive lock
+
+  while [ 1 ]; do
+    read <$FIFO_FILE
+    snail.nv_pwr_on && $SERVICE start # starting X server
+    flock -u 9
+    flock 9
+    echo >$FIFO_FILE | cat $FIFO_FILE >/dev/null # flush fifo
+    $SERVICE stop && snail.nv_pwr_off # stopping X server
+  done
+} 9>$LOCK_FILE