File should be open in read/write mode. When doing lock on a file.

2011-04-18 17:06:07 +05:30 · 2011-04-18 17:06:07 +05:30 · 92537b8c27
commit 92537b8c27
parent 3b0f917b1d
1 changed files with 1 additions and 1 deletions
--- a/activesupport/lib/active_support/cache/file_store.rb
+++ b/activesupport/lib/active_support/cache/file_store.rb
@ -121,7 +121,7 @@ def delete_entry(key, options)
        # Lock a file for a block so only one process can modify it at a time.
        def lock_file(file_name, &block) # :nodoc:
          if File.exist?(file_name)
-            File.open(file_name, 'r') do |f|
+            File.open(file_name, 'r+') do |f|
              begin
                f.flock File::LOCK_EX
                yield