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Remove timeout support from lf_queue::wait

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Add notify method and use atomic wait
This commit is contained in:
Nekotekina 2019-09-09 00:55:48 +03:00
parent faba366f89
commit b91661ae71
3 changed files with 21 additions and 46 deletions
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32
Utilities/cond.cpp
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@ -443,35 +443,3 @@ bool shared_cond::notify_all(shared_cond::shared_lock& lock) noexcept
balanced_awaken<true>(m_cvx32, utils::popcnt32(wait_mask));
return true;
}
bool lf_queue_base::wait(u64 _timeout)
{
auto _old = m_head.compare_and_swap(0, 1);
if (_old)
{
verify("lf_queue concurrent wait" HERE), _old != 1;
return true;
}
return balanced_wait_until(m_head, _timeout, [](std::uintptr_t& head, auto... ret) -> int
{
if (head != 1)
{
return +1;
}
if constexpr (sizeof...(ret))
{
head = 0;
return -1;
}
return 0;
});
}
void lf_queue_base::imp_notify()
{
balanced_awaken(m_head, 1);
}