kotlin-odata/com.sap.cloud.mobile.kotlin.odata/MetadataLock

MetadataLock

A lock for ensuring thread-safe access to mutable service metadata. See ReadWriteLock for notes regarding lock reentrancy for writers.

Constructors

MetadataLock

constructor()

Properties

mutex

open val mutex: ReadWriteMutex

Functions

readLock

open fun readLock(action: () -> Unit)

Lock metadata while performing an action that doesn't change metadata. To separate the locking and unlocking steps, see {@link com.sap.cloud.mobile.kotlin.odata.MetadataLock#mutex MetadataLock.mutex}, ReadWriteLock.beginRead and ReadWriteLock.endRead. Note: a thread may request a read lock when it already has a read lock (but not if it already has a write lock).

writeLock

open fun writeLock(action: () -> Unit)

Lock metadata while performing an action that changes metadata. To separate the locking and unlocking steps, see {@link com.sap.cloud.mobile.kotlin.odata.MetadataLock#mutex MetadataLock.mutex}, ReadWriteLock.beginWrite and ReadWriteLock.endWrite. Note: If a thread tries to acquire a write lock while already holding a (read or write) lock, the thread will hang.