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authorTodd Gamblin <tgamblin@llnl.gov>2018-07-01 00:56:59 -0700
committerTodd Gamblin <tgamblin@llnl.gov>2018-07-12 19:59:53 +0200
commit650786c81270889f154c577a3c74abd51108d856 (patch)
treef768da1f2ba1fb6878a21bc840b581f6cda2ea47 /.mailmap
parentab794fa7413d1650c1ba01ea18e74964877fdf99 (diff)
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locks: improve errors and permission checking
- Clean up error messages for when a lock can't be created, or when an exclusive (write) lock can't be taken on a file. - Add a number of subclasses of LockError to distinguish timeouts from permission issues. - Add an explicit check to prevent the user from taking a write lock on a read-only file. - We had a check for this for when we try to *upgrade* a lock on an RO file, but not for an initial write lock attempt. - Add more tests for different lock permission scenarios.
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