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Avoid copying std::shared_ptr in sys_semaphore

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Eladash 2020-05-31 14:21:51 +03:00 • committed by Ivan
parent 99895471ae
commit 675fde69aa
1 changed files with 6 additions and 3 deletions
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9
rpcs3/Emu/Cell/lv2/sys_semaphore.cpp
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@ -229,15 +229,18 @@ error_code sys_semaphore_post(ppu_thread& ppu, u32 sem_id, s32 count)
{
std::lock_guard lock(sem->mutex);
const s32 val = sem->val.fetch_op([=](s32& val)
const auto [val, ok] = sem->val.fetch_op([&](s32& val)
{
if (val + s64{count} <= sem->max)
if (count + 0u <= sem->max + 0u - val)
{
val += count;
return true;
}
return false;
});
if (val + s64{count} > sem->max)
if (!ok)
{
return not_an_error(CELL_EBUSY);
}