SecKeychainLockAll()
Locks all keychains belonging to the current user.
Declaration
func SecKeychainLockAll() -> OSStatusReturn Value
A result code. See Security Framework Result Codes.
Discussion
Your application should not call this function unless you are responding to a user’s request to lock a keychain. In general, you should leave the keychain unlocked so that the user does not have to unlock it again in another application.