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-rw-r--r--lib/feed2imap/feed2imap.rb12
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/feed2imap/feed2imap.rb b/lib/feed2imap/feed2imap.rb
index 77bd48e..e8e45a0 100644
--- a/lib/feed2imap/feed2imap.rb
+++ b/lib/feed2imap/feed2imap.rb
@@ -62,14 +62,18 @@ class Feed2Imap
# init cache
@logger.info('Initializing cache')
@cache = ItemCache::new
+ if not File::exist?(@config.cache + '.lock')
+ f = File::new(@config.cache + '.lock', 'w')
+ f.close
+ end
+ if File::new(@config.cache + '.lock').flock(File::LOCK_EX | File::LOCK_NB) == false
+ @logger.fatal("Another instance of feed2imap is already locking the cache file")
+ exit(1)
+ end
if not File::exist?(@config.cache)
@logger.warn("Cache file #{@config.cache} not found, using a new one")
else
File::open(@config.cache) do |f|
- if not f.flock(File::LOCK_UN)
- @logger.fatal("Another instance of feed2imap is already locking the cache file")
- exit(1)
- end
@cache.load(f)
end
end