Instance Method

lock

Attempts to acquire a lock.

Declaration

- (void)lock;

Discussion

This method blocks a thread’€™s execution until the lock can be acquired. An application protects a critical section of code by requiring a thread to acquire a lock before executing the code. Once the critical section is past, the thread relinquishes the lock by invoking unlock.

See Also

Deprecated

NSPersistentStoreDidImportUbiquitousContentChangesNotification

Posted after records are imported from the ubiquitous content store.

Deprecated
NSPersistentStoreUbiquitousTransitionType

These constants are used as the value corresponding to the NSPersistentStoreUbiquitousTransitionTypeKey in the user info dictionary of NSPersistentStoreCoordinatorStoresWillChangeNotification and NSPersistentStoreCoordinatorStoresDidChangeNotification notifications to identify the type of event leading to a change.

Deprecated
+ removeUbiquitousContentAndPersistentStoreAtURL:options:error:

Deletes all ubiquitous content for all peers for the persistent store at a given URL and also delete the local store file.

Deprecated
+ setMetadata:forPersistentStoreOfType:URL:error:

Sets the metadata for a given store.

Deprecated
+ metadataForPersistentStoreOfType:URL:error:

Returns a dictionary containing the metadata stored in the persistent store at a given URL.

Deprecated
- unlock

Relinquishes a previously acquired lock.

Deprecated
- tryLock

Attempts to acquire a lock.

Deprecated

Beta Software

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