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Unigine::RWMutexSpin Class

Header: #include <UnigineThread.h>

A spin-based reader-writer mutex implementation that allows multiple concurrent readers or exclusive access for a single writer. Internally uses atomic operations and BackoffSpinner class to manage access.

This class has the following aliases:

Alias Description
RWMutex Default alias for RWMutexSpin.

RWMutexSpin Class

Members


RWMutexSpin ( ) #

Default constructor. Initializes the internal lock state with no active readers or writers.

void lockRead ( ) #

Acquires a shared (read) lock. Multiple threads can acquire read access concurrently as long as no writer holds the lock.

bool tryLockRead ( ) #

Attempts to acquire a read lock without blocking. Fails if a writer currently holds the lock.

Return value

Returns true if the read lock was successfully acquired; false otherwise.

void unlockRead ( ) #

Releases a previously acquired read lock by decrementing the reader count.

void lockWrite ( ) #

Acquires an exclusive (write) lock. Blocks until no other thread holds a read or write lock.

bool tryLockWrite ( ) #

Attempts to acquire a write lock without blocking. Succeeds only if no readers or writers currently hold the lock.

Return value

Returns true if the write lock was successfully acquired; false otherwise.

void unlockWrite ( ) #

Releases a previously acquired write lock by resetting the writer flag.

void lock ( ) #

Alias for lockWrite(). Allows RWMutexSpin to be used in generic locking interfaces.

bool tryLock ( ) #

Alias for tryLockWrite(). Allows RWMutexSpin to be used in generic locking interfaces.

void unlock ( ) #

Alias for unlockWrite(). Allows RWMutexSpin to be used in generic locking interfaces.

The information on this page is valid for UNIGINE 2.20 SDK.

Last update: 2025-07-10
Build: ()