Method try_upgrade

crates/common/src/lock/cell_lock.rs:161–168

(&self)

    #[inline]
    unsafe fn try_upgrade(&self) -> bool {
        if self.state.get() == ONE_READER {
            self.state.set(WRITER_BIT);
            true
        } else {
            false
        }
    }
}

unsafe impl RawRwLockUpgradeDowngrade for RawCellRwLock {