Added xxx.sh, a script to start/stop/restart a linux ioc in a screen session....

Added xxx.sh, a script to start/stop/restart a linux ioc in a screen session. Improved in-screen.sh and run scripts.

iocBoot/iocLinux/in-screen.sh

@@ -2,7 +2,7 @@
 
 # $Id$
 
-/usr/bin/screen -d -m ./run
+/usr/bin/screen -dm -S xxx -h 5000 ./run
 
 # start the IOC in a screen session
 #  type:

iocBoot/iocLinux/run

@@ -3,7 +3,7 @@
 # ensure that multiple, simultaneous IOCs are not started by this user ID
 
 MY_UID=`id -u`
-IOC_PID="`/usr/bin/pgrep xxx -u ${MY_UID}`"
+IOC_PID="`/usr/bin/pgrep xxx\$ -u ${MY_UID}`"
 
 if [ "" != "${IOC_PID}" ] ; then
   echo "xxx IOC is already running, won't start a new one, PID=${IOC_PID}"

iocBoot/iocLinux/xxx.sh

+#!/bin/sh
+#
+# description: start/stop/restart an EPICS IOC in a screen session
+#
+
+# Make sure this path to the IOC is set correctly
+IOC_STARTUP_DIR=/home/username/epics/ioc/synApps/xxx/iocBoot/iocxxx
+IOC_NAME=xxx
+
+# Commands needed by this script
+ECHO=echo
+ID=id
+PGREP=pgrep
+SCREEN=screen
+KILL=kill
+# Explicitly define paths to commands if commands aren't found
+#!ECHO=/bin/echo
+#!ID=/usr/bin/id
+#!PGREP=/usr/bin/pgrep
+#!SCREEN=/usr/bin/screen
+#!KILL=/bin/kill
+
+#####################################################################
+
+SNAME=$0
+SELECTION=$1
+
+#####################################################################
+
+checkpid() {
+    MY_UID=`${ID} -u`
+    # The '\$' is needed in the pgrep pattern to select xxx, but not xxx.sh
+    IOC_PID=`${PGREP} ${IOC_NAME}\$ -u ${MY_UID}`
+    #!echo "IOC_PID=${IOC_PID}"
+    if [ "$IOC_PID" != "" ] ; then
+        # IOC is running
+        IOC_DOWN=0
+    else
+        # IOC is not running
+	IOC_DOWN=1
+    fi
+    return ${IOC_DOWN}
+}
+
+start() {
+    if checkpid; then
+        ${ECHO} "${IOC_NAME} is already running (pid=${IOC_PID})"
+    else
+        ${ECHO} "Starting ${IOC_NAME}"
+        cd ${IOC_STARTUP_DIR}
+	./in-screen.sh
+	# Run xxx outside of a screen session, which is helpful for debugging
+	#!./run
+    fi
+}
+
+stop() {
+    if checkpid; then
+        ${ECHO} "Stopping ${IOC_NAME} (pid=${IOC_PID})"
+	${KILL} ${IOC_PID}
+    else
+        ${ECHO} "${IOC_NAME} is not running"
+    fi
+}
+
+restart() {
+    stop
+    start
+}
+
+status() {
+    if checkpid; then
+        ${ECHO} "${IOC_NAME} is running (pid=${IOC_PID})"
+    else
+        ${ECHO} "${IOC_NAME} is not running"
+    fi
+}
+
+console() {
+    if checkpid; then
+        ${ECHO} "Connecting to ${IOC_NAME}'s screen session"
+	# The -r flag will only connect if no one is attached to the session
+	#!${SCREEN} -r ${IOC_NAME}
+	# The -x flag will connect even if someone is attached to the session
+	${SCREEN} -x ${IOC_NAME}
+    else
+        ${ECHO} "${IOC_NAME} is not running"
+    fi
+}
+
+usage() {
+    ${ECHO} "Usage: $(basename ${SNAME}) {start|stop|restart|status|console}"
+}
+
+#####################################################################
+
+if [ ! -d ${IOC_STARTUP_DIR} ]
+then
+    ${ECHO} "Error: ${IOC_STARTUP_DIR} doesn't exist."
+    ${ECHO} "IOC_STARTUP_DIR in ${SNAME} needs to be corrected."
+else
+    case ${SELECTION} in
+        start)
+	    start
+	    ;;
+
+        stop | kill)
+	    stop
+	    ;;
+
+        restart)
+	    restart
+	    ;;
+
+        status)
+	    status
+	    ;;
+	
+        console)
+            console
+	    ;;
+
+        *)
+	    usage
+	    ;;
+    esac
+fi