Remove operation help.

[anna.git] / example / diameter / launcher / resources / scripts / operation_signal.sh

diff --git a/example/diameter/launcher/resources/scripts/operation_signal.sh b/example/diameter/launcher/resources/scripts/operation_signal.sh
index d312981..87e4ce5 100755 (executable)
--- a/example/diameter/launcher/resources/scripts/operation_signal.sh
+++ b/example/diameter/launcher/resources/scripts/operation_signal.sh
@@ -1,13 +1,91 @@
 #!/bin/bash
 
+#############
+# VARIABLES #
+#############
+TIMEOUT__dflt=3
+SCR_BN=`basename $0`
+
 #############
 # FUNCTIONS #
 #############
-_exit () {
+_exit() {
   echo -e "\n$1\n"
   exit 1
 }
 
+usage() {
+  echo
+  echo "Usage: $0 [-h|--help] [-t|--timeout <value>] [-f|--file <file>] [-p|--ping] [operation] "
+  echo
+  echo "       -h|--help:             this usage help."
+  echo "       -t|--timeout <value>:  timeout for operation in seconds."
+  echo "                              Defaults to $TIMEOUT__dflt seconds if not provided."
+  echo "       -f|--file <file>:      file with one operation per line (comments # allowed)."
+  echo "       -p|--ping:             Check the target process id."
+  echo "                              Returns 1 (dead) or 0 (alive)."
+  echo "       operation:             quoted operation string. Will be ignored if file"
+  echo "                              option is present. It is a positional argument"
+  echo "                              (the last one) when present."
+  echo
+  echo "       For example:"
+  echo "          $0 help"
+  echo "          $0 \"test|ttps|50\""
+  echo "          $0 --file myOperationsList.txt"
+  echo "          $0 --timeout 10 --file ./bigList.txt"
+  _exit
+}
+
+parse_arguments() {
+  is_file=
+  timeout=$TIMEOUT__dflt
+  file=
+  operation=
+  ping=
+
+  while [ $# -gt 0 ]; do
+    case "$1" in
+      -h|--help)
+        usage
+      ;;
+
+      -t|--timeout)
+        timeout=$2
+        [ -z "$timeout" ] && _exit "Missing timeout value"
+        shift
+      ;;
+
+      -f|--file)
+        is_file=yes
+        file="$2"
+        [ -z "$file" ] && _exit "Missing file"
+        [ ! -f "$file" ] && _exit "Can't found provided file '$file'."
+        shift
+      ;;
+
+      -p|--ping)
+        ping=yes
+      ;;
+
+      *)
+        first=$(echo $1 | cut -c1)
+        [ "$first" = "-" ] && _exit "Unsupported script option: $1. Type '$SCR_BN -h' (or --help) to print the available options."
+        operation="$@"
+        break
+      ;;
+    esac
+    shift
+  done
+
+  [ -z "$is_file" -a -z "$operation" -a -z "$ping" ] && _exit "Missing operation or file with operations"
+}
+
+# $1: pid to check
+check_pid() {
+  kill -0 $1 2>/dev/null
+  return $?
+}
+
 #############
 # EXECUTION #
 #############
@@ -16,12 +94,48 @@ cd `dirname $0`
 [ ! -f .pid ] && _exit "Can't found '`pwd`/.pid'.\nTry to pgrep your process name and dump pid to that file."
 PID=`cat .pid`
 
+# Arguments:
+[ "$1" = "" -o "$1" = "--help" -o "$1" = "-h" ] && usage
+parse_arguments $@
+
+# Check pid:
+check_pid $PID
+res=$?
+[ -n "$ping" ] && exit $res
+[ $res -ne 0 ] && _exit "Operation error: missing process with pid $PID"
+
 # Send operation:
-[ "$1" = "" ] && _exit "Usage: $0 <operation string>; i.e.: $0 help"
-echo $1 > sigusr2.in
+if [ -n "$is_file" ]
+then
+  cp $file sigusr2.in
+else
+  echo $operation > sigusr2.in
+fi
+0>sigusr2.out
+check_pid $PID
 kill -s SIGUSR2 $PID
 
-#echo "You could see results on '`pwd`/sigusr2.out' file."
-cat `pwd`/sigusr2.out 2>/dev/null
-echo
+# Detect EOF and print all except that last line:
+count=$((10*timeout))
+expired=yes
+while [ $count -gt 0 ]
+do
+  sleep 0.1
+  count=$((count-1))
+  if tail -1 sigusr2.out | grep "^EOF" >/dev/null; then
+    expired=
+    break;
+  fi
+done
+
+if [ -z "$expired" ]
+then
+  head --lines=-1 sigusr2.out
+else
+  _exit "Operation error: timeout expired ($timeout seconds)"
+fi
+
+exception=$(grep "^Operation processed with exception: " sigusr2.out)
+[ $? -eq 0 ] && _exit "(detected 'exception' within operation output: see 'launcher.trace')"
+exit 0