error_code sys_ppu_thread_start(ppu_thread& ppu, u32 thread_id)
{
sys_ppu_thread.trace("sys_ppu_thread_start(thread_id=0x%x)", thread_id);
const auto thread = idm::get<ppu_thread>(thread_id, [&](ppu_thread& thread)
{
lv2_obj::awake(thread, -2);
});
if (!thread)
{
return CELL_ESRCH;
}
if (!thread->state.test_and_reset(cpu_flag::stop))
{
// TODO: what happens there?
return CELL_EPERM;
}
else
{
thread->notify();
// Dirty hack for sound: confirm the creation of _mxr000 event queue
if (thread->m_name == "_cellsurMixerMain")
{
lv2_obj::sleep(ppu);
while (!idm::select<lv2_obj, lv2_event_queue>([](u32, lv2_event_queue& eq)
{
//some games do not set event queue name, though key seems constant for them
return (eq.name == "_mxr000\0"_u64) || (eq.key == 0x8000cafe02460300);
}))
{
thread_ctrl::wait_for(50000);
}
ppu.test_state();
}
}
return CELL_OK;
}
error_code sys_ppu_thread_join(ppu_thread& ppu, u32 thread_id, vm::ptr<u64> vptr)
{
vm::temporary_unlock(ppu);
sys_ppu_thread.trace("sys_ppu_thread_join(thread_id=0x%x, vptr=*0x%x)", thread_id, vptr);
const auto thread = idm::get<ppu_thread>(thread_id, [&](ppu_thread& thread) -> CellError
{
CellError result = thread.joiner.atomic_op([&](u32& value) -> CellError
{
if (value == -3)
{
value = -2;
return CELL_EBUSY;
}
if (value == -2)
{
return CELL_ESRCH;
}
if (value)
{
return CELL_EINVAL;
}
// TODO: check precedence?
if (&ppu == &thread)
{
return CELL_EDEADLK;
}
value = ppu.id;
return {};
});
if (!result)
{
lv2_obj::sleep(ppu);
}
return result;
});
if (!thread)
{
return CELL_ESRCH;
}
if (thread.ret && thread.ret != CELL_EBUSY)
{
return thread.ret;
}
// Wait for cleanup
thread->join();
// Get the exit status from the register
if (vptr)
{
ppu.test_state();
*vptr = thread->gpr[3];
}
// Cleanup
idm::remove<ppu_thread>(thread->id);
return CELL_OK;
}
