InterprocessReaderWriterLock Class

public class InterprocessReaderWriterLock : IDisposable

Public Class InterprocessReaderWriterLock
	Implements IDisposable

public ref class InterprocessReaderWriterLock : IDisposable

Gemstone.Threading.InterprocessReaderWriterLock = function();

Type.createClass(
	'Gemstone.Threading.InterprocessReaderWriterLock',
	null,
	IDisposable);

Inheritance

Object    InterprocessReaderWriterLock

Implements

IDisposable

The InterprocessReaderWriterLock uses a NamedSemaphore to synchronize access to an inter-process shared resource. On POSIX systems, the NamedSemaphore exhibits kernel persistence, meaning instances will remain active beyond the lifespan of the creating process. The named semaphore must be explicitly removed by invoking ReleaseInterprocessResources when the last reader-writer lock instance is no longer needed. Kernel persistence necessitates careful design consideration regarding process responsibility for invoking the ReleaseInterprocessResources method. Since the common use case for named semaphores is across multiple applications, it is advisable for the last exiting process to handle the cleanup. In cases where an application may crash before calling the ReleaseInterprocessResources method, the semaphore persists in the system, potentially leading to resource leakage. Implementations should include strategies to address and mitigate this risk.

Reference