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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
View File

@ -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);
}

28
Utilities/lockless.h
View File

@ -315,12 +315,6 @@ class lf_queue_base
{
protected:
atomic_t<std::uintptr_t> m_head = 0;
void imp_notify();
public:
// Wait for new elements pushed, no other thread shall call wait() or pop_all() simultaneously
bool wait(u64 usec_timeout = -1);
};
// Linked list-based multi-producer queue (the consumer drains the whole queue at once)
@ -361,20 +355,28 @@ public:
delete reinterpret_cast<lf_queue_item<T>*>(m_head.load());
}
void wait() noexcept
{
while (m_head == 0)
{
m_head.wait(0);
}
}
void notify() noexcept
{
m_head.notify_one();
}
template <typename... Args>
void push(Args&&... args)
{
auto _old = m_head.load();
auto* item = new lf_queue_item<T>(_old & 1 ? nullptr : reinterpret_cast<lf_queue_item<T>*>(_old), std::forward<Args>(args)...);
auto* item = new lf_queue_item<T>(reinterpret_cast<lf_queue_item<T>*>(_old), std::forward<Args>(args)...);
while (!m_head.compare_exchange(_old, reinterpret_cast<std::uint64_t>(item)))
{
item->m_link = _old & 1 ? nullptr : reinterpret_cast<lf_queue_item<T>*>(_old);
}
if (_old & 1)
{
lf_queue_base::imp_notify();
item->m_link = reinterpret_cast<lf_queue_item<T>*>(_old);
}
}

7
rpcs3/Emu/Cell/Modules/cellVdec.cpp
View File

@ -184,7 +184,7 @@ struct vdec_context final
{
if (!cmds)
{
in_cmd.wait(1000);
in_cmd.wait();
continue;
}
@ -515,6 +515,7 @@ error_code cellVdecClose(ppu_thread& ppu, u32 handle)
lv2_obj::sleep(ppu);
vdec->out_max = 0;
vdec->in_cmd.push(vdec_close);
vdec->in_cmd.notify();
while (!atomic_storage<u64>::load(vdec->ppu_tid))
{
@ -538,6 +539,7 @@ error_code cellVdecStartSeq(u32 handle)
}
vdec->in_cmd.push(vdec_start_seq);
vdec->in_cmd.notify();
return CELL_OK;
}
@ -553,6 +555,7 @@ error_code cellVdecEndSeq(u32 handle)
}
vdec->in_cmd.push(vdec_cmd{-1});
vdec->in_cmd.notify();
return CELL_OK;
}
@ -574,6 +577,7 @@ error_code cellVdecDecodeAu(u32 handle, CellVdecDecodeMode mode, vm::cptr<CellVd
// TODO: check info
vdec->in_cmd.push(vdec_cmd{mode, *auInfo});
vdec->in_cmd.notify();
return CELL_OK;
}
@ -924,6 +928,7 @@ error_code cellVdecSetFrameRate(u32 handle, CellVdecFrameRate frc)
// TODO: check frc value
vdec->in_cmd.push(frc);
vdec->in_cmd.notify();
return CELL_OK;
}