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2 commits

Author SHA1 Message Date
Bjoern Rabenstein f298af5756 Use named returns in flock.New. 2015-01-19 14:31:16 +01:00
Bjoern Rabenstein baca6faa1c Add double-start protection.
This mimics the locking leveldb is performing anyway. Advantages of
doing it separately:

- Should we ever replace the leveldb implementation by one without
  double-start protection, we are still good.

- In contrast to leveldb, the new code creates a meaningful error
  message.
2015-01-14 17:13:42 +01:00