The POSIX layer only exported init, destroy, rdlock, wrlock and unlock.
pthread_rwlock_tryrdlock, pthread_rwlock_trywrlock,
pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock now wrap the
existing scePthreadRwlock functions and accept the static initializer.
The timed variants take an absolute CLOCK_REALTIME deadline. Like
FreeBSD libthr they try the lock first and only validate abstime when
the lock is not free. A null abstime throws, as pthread_mutex_timedlock
does.
scePthreadRwlockTryrdlock and scePthreadRwlockTrywrlock return EBUSY
when the caller already holds the write lock instead of calling into
std::shared_timed_mutex, where that is undefined behaviour.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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