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Add lock manager to libpod runtime

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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
This commit is contained in:
Matthew Heon
2018-08-23 13:48:07 -04:00
committed by Matthew Heon
parent e73484c176
commit a364b656ea
4 changed files with 95 additions and 46 deletions
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11
libpod/lock/lock.go
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@ -41,11 +41,14 @@ type Locker interface {
// Lock locks the lock.
// This call MUST block until it successfully acquires the lock or
// encounters a fatal error.
Lock() error
// All errors must be handled internally, as they are not returned. For
// the most part, panicking should be appropriate.
Lock()
// Unlock unlocks the lock.
// A call to Unlock() on a lock that is already unlocked lock MUST
// error.
Unlock() error
// All errors must be handled internally, as they are not returned. For
// the most part, panicking should be appropriate.
// This includes unlocking locks which are already unlocked.
Unlock()
// Free deallocates the underlying lock, allowing its reuse by other
// pods and containers.
// The lock MUST still be usable after a Free() - some libpod instances