Clone this repo:


  1. afa4766 Merge pull request #2 from ppbrown/master by Daniel Jacques · 1 year, 2 months ago master
  2. 26b8884 changed parallel count from 256 to 100, because of too many open files limit by Philip Brown · 1 year, 2 months ago
  3. 4968342 change createfile to open RDWR by Philip Brown · 1 year, 2 months ago
  4. b771e97 gofmt by Philip Brown · 1 year, 2 months ago
  5. a031c8d switched to use portable FcntlFlock by Philip Brown · 1 year, 2 months ago


Go implementation of filesystem-level locking.

GoDoc Build Status Coverage Status

gofslock offers several features:

  • Exclusive and shared locking senamtics.
  • Consistent intra- and inter-processing locking behavior across major operating systems (notably Linux, Mac, and Windows).
  • Works on all Go versions.
  • Only depends on Go standard library.
  • Locking behavior and interaction is heavily tested.


Request features and report bugs using the GitHub Issue Tracker.


Contributions to this project are welcome, though please file an issue before starting work on anything major.

To get started contributing to this project, clone the repository:

git clone

This repository uses pre-commit-go to validate itself. Please install this prior to working on the project:

  • Make sure your and are configured in git config.
  • Install test-only packages: go get -u -t
  • Install the pcg git hook: go get -u && pcg