bolt/test/runtime/wait_file.sh

   1 #!/bin/bash
   2
   3 check_file() {
   4     local file="$1"
   5     if [ -z "$file" ]; then
   6         echo "No file passed!"
   7         exit 1
   8     fi
   9     if [ ! -f "$file" ]; then
  10         return 1
  11     fi
  12
  13     fuser -s "$file"
  14     local ret=$?
  15     if [ $ret -eq 1 ]; then # noone has file open
  16         return 0
  17     fi
  18     if [ $ret -eq 0 ]; then # file open by some processes
  19         return 1
  20     fi
  21     if [ $ret -eq 127 ]; then
  22         echo "fuser command not found!"
  23         exit 1
  24     fi
  25
  26     echo "Unexpected exit code $ret from fuser!"
  27     exit 1
  28 }
  29
  30 wait_file() {
  31     local file="$1"
  32     local max_sleep=10
  33     check_file "$file"
  34     local ret=$?
  35     while [ $ret -ne 0 ] && [ $max_sleep -ne 0 ]; do
  36         sleep 1
  37         max_sleep=$((max_sleep - 1))
  38         check_file $file
  39         ret=$?
  40     done
  41     if [ $max_sleep -eq 0 ]; then
  42         echo "The file does not exist or the test hung!"
  43         exit 1
  44     fi
  45
  46 }
  47 file="$1"
  48 wait_file "$file"