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SDL_TryLockRWLockForWriting - Try to lock a read/write lock _for writing_ without blocking.

Availability

       This function is available since SDL 3.2.0.

Description

       This works just like

       SDL_LockRWLockForWriting  (),  but  if  the  rwlock  is  not  available, then this function returns false
       immediately.

       This technique is useful if you need exclusive access to a resource but don't want to wait  for  it,  and
       will return to it to try again later.

       It is illegal for the owning thread to lock an already-locked rwlock for writing (read-only may be locked
       recursively, writing can not). Doing so results in undefined behavior.

       It is illegal to request a write lock from a thread that already holds a read-only lock. Doing so results
       in undefined behavior. Unlock the read-only lock before requesting a write lock.

       This function returns true if passed a NULL rwlock.

Function Parameters

rwlock the rwlock to try to lock.

Header File

       Defined in SDL3/SDL_mutex.h

Name

       SDL_TryLockRWLockForWriting - Try to lock a read/write lock _for writing_ without blocking.

Return Value

       Returns true on success, false if the lock would block.

See Also

(3), SDL_LockRWLockForWriting(3), (3), SDL_TryLockRWLockForReading(3), (3), SDL_UnlockRWLock(3)

Simple Directmedia Layer                           SDL 3.2.10                     SDL_TryLockRWLockForWriting(3)

Synopsis

#include"SDL3/SDL.h"boolSDL_TryLockRWLockForWriting(SDL_RWLock*rwlock);

See Also