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Fix lf_queue regression

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This commit is contained in:
Ivan Chikish 2023-08-03 05:18:58 +03:00 committed by Elad Ashkenazi
parent d34287b2cc
commit 39a0ff99b2
1 changed files with 3 additions and 4 deletions
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7
Utilities/lockless.h
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@ -342,15 +342,14 @@ public:
void push(Args&&... args)
{
auto oldv = m_head.load();
auto _old = load(oldv);
auto item = new lf_queue_item<T>(_old, std::forward<Args>(args)...);
auto item = new lf_queue_item<T>(load(oldv), std::forward<Args>(args)...);
while (!m_head.compare_exchange(oldv, reinterpret_cast<u64>(item) << 16))
{
item->m_link = _old;
item->m_link = load(oldv);
}
if (!_old)
if (!oldv)
{
// Notify only if queue was empty
utils::bless<atomic_t<u32>>(&m_head)[1].notify_one();