first commit

new file:   kira.sh

kira.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+if [ -z $2 ]; then
+    echo "Usage: $0 <process-regex> <program-name>" >&2
+    echo "Example: $0 /usr/bin/cutycapt cutycapt"
+    exit
+fi
+
+PROCESS_REGEX=$1
+
+PROGRAM_NAME=$2
+
+KIRA_PID=$$
+
+LOG_FILE=/tmp/kira-$PROGRAM_NAME.log
+PIDS_FILE=/tmp/kira-$PROGRAM_NAME.pids
+
+touch $PIDS_FILE
+
+function emit_log {
+    ms=$(($(date +%s%N)/1000000))
+    echo "$ms $1" >> $LOG_FILE
+}
+
+function kirapids {
+
+    # kill pids if they have been hanging around for too long.
+    for pid in `pgrep -f $PROCESS_REGEX`
+      do
+        # if pid is listed in the pids_file, kill it.
+        if grep -q $pid $PIDS_FILE
+          then
+            ps_of_pid=`ps -f --no-headers --pid $pid`
+            emit_log "killing pid $pid | $ps_of_pid"
+            kill $pid
+        fi
+      done 
+    
+    # clear the pid file.
+    > $PIDS_FILE
+    
+    # collect pids of the given program, save them to $PIDSFILE.
+    for pid in `pgrep -f $PROCESS_REGEX`
+      do
+        # don't match kira program (self).
+        if [ "$pid" != "$KIRA_PID" ]
+          then
+            emit_log "watching pid $pid"
+            echo $pid >> $PIDS_FILE
+        fi
+      done
+}
+
+# call our kira (killer) function.
+kirapids