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path: root/libpod/lock/lock.go
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* Do not make renumber shut down the runtimeMatthew Heon2019-02-21
| | | | | | | | | | | | | | | The original intent behind the requirement was to ensure that, if two SHM lock structs were open at the same time, we should not make such a runtime available to the user, and should clean it up instead. It turns out that we don't even need to open a second SHM lock struct - if we get an error mapping the first one due to a lock count mismatch, we can just delete it, and it cleans itself up when it errors. So there's no reason not to return a valid runtime. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add initial version of renumber backendMatthew Heon2019-02-21
| | | | | | | | | Renumber is a way of renumbering container locks after the number of locks available has changed. For now, renumber only works with containers. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Address lingering review comments from SHM locking PRMatthew Heon2019-01-07
| | | | Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add lock manager to libpod runtimeMatthew Heon2019-01-04
| | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Move to POSIX mutexes for SHM locksMatthew Heon2019-01-04
| | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Add an SHM-backed Lock Manager implementationMatthew Heon2019-01-04
| | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Add interface for libpod multiprocess locksMatthew Heon2019-01-04
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>