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Unigine::MutexAdvance Class

Header: #include <UnigineThread.h>

Template class that wraps a generic mutex type with additional lock state tracking for faster lock state queries and reduced contention in some concurrent scenarios.

By maintaining an atomic flag (is_locked), this class allows quick checks for lock status without acquiring the underlying mutex, while providing standard locking interfaces.

MutexType - The underlying mutex type used for locking. The type must provide lock(), tryLock(), unlock() methods.

This class has the following aliases:

Alias Description Type
MutexSlimAdvance Alias for MutexAdvance using MutexSlim as the base mutex. Adds lock state tracking to a Windows SRW Lock. MutexSlim
MutexCriticalSectionAdvance Alias for MutexAdvance using MutexCriticalSection as the base mutex. Adds lock state tracking to a Windows CRITICAL_SECTION. MutexCriticalSection
MutexPThreadAdvance Alias for MutexAdvance using MutexPThread as the base mutex. Adds lock state tracking to a Linux pthread_mutex_t. MutexPThread

MutexAdvance Class

Members


MutexAdvance ( ) #

Default constructor. Initializes the internal mutex and sets the lock state to unlocked.

void lock ( ) #

Acquires the internal mutex and marks the lock state as active.

void unlock ( ) #

Releases the internal mutex and marks the lock state as inactive.

bool tryLock ( ) #

Attempts to acquire the lock without blocking. First checks the internal flag for a fast-path rejection, then tries to acquire the underlying mutex.

Return value

Returns true if the lock was successfully acquired, false otherwise.

bool isLocked ( ) #

Returns the current lock status of the mutex by checking the internal flag.

Return value

Returns true if the lock is currently held, false otherwise.

void waitForce ( ) #

Forces the current thread to wait by acquiring and immediately releasing the lock.

void wait ( ) #

Waits for the mutex to be released if it is currently locked. Returns immediately if the lock is not held.

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

Last update: 10.07.2025
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