introduce lock file for package database

1 files changed, 6 insertions, 0 deletions

diff --git a/bin/return-assignment b/bin/return-assignment
index b217409..04648ca 100755
--- a/bin/return-assignment
+++ b/bin/return-assignment
@@ -22,13 +22,19 @@
 # Create a lock file and a trap.
 
 exec 9> "${build_list_lock_file}"
+exec 8> "${package_database_lock_file}"
 if ! flock -n 9; then
   >&2 echo 'come back (shortly) later - I cannot lock build list.'
   exit 1
 fi
+if ! flock -n 8; then
+  >&2 echo 'come back (shortly) later - I cannot lock package database.'
+  exit 1
+fi
 
 function clean_up_lock_file {
   rm -f "${build_list_lock_file}"
+  rm -f "${package_database_lock_file}"
 }
 
 trap clean_up_lock_file EXIT