Lines Matching defs:old

341   template <Role role> LIBC_INLINE LockResult try_lock(RwState &old) {
343       while (LIBC_LIKELY(old.can_acquire<Role::Reader>(get_preference()))) {
344         cpp::optional<RwState> next = old.try_increase_reader_count();
347         if (LIBC_LIKELY(old.compare_exchange_weak_with(
351         // Notice that old is updated by the compare_exchange_weak_with
357       while (LIBC_LIKELY(old.can_acquire<Role::Writer>(get_preference()))) {
358         if (LIBC_LIKELY(old.compare_exchange_weak_with(
359                 state, old.set_writer_bit(), cpp::MemoryOrder::ACQUIRE,
364         // Notice that old is updated by the compare_exchange_weak_with
380     RwState old = RwState::load(state, cpp::MemoryOrder::RELAXED);
381     return try_lock<Role::Reader>(old);
385     RwState old = RwState::load(state, cpp::MemoryOrder::RELAXED);
386     return try_lock<Role::Writer>(old);
407     RwState old =
413       LockResult result = try_lock<role>(old);
432         old = RwState::fetch_set_pending_bit<role>(state,
441       if (!old.can_acquire<role>(get_preference()))
464       old = RwState::spin_reload<role>(state, get_preference(), spin_count);
518     RwState old = RwState::load(state, cpp::MemoryOrder::RELAXED);
519     if (old.has_active_writer()) {
527       old =
530       if (!old.has_pending())
532     } else if (old.has_active_reader()) {
535       old = RwState::fetch_sub_reader_count(state, cpp::MemoryOrder::RELEASE);
537       if (!old.has_last_reader() || !old.has_pending())
550     RwState old = RwState::load(state, cpp::MemoryOrder::RELAXED);
551     if (old.has_active_owner())