s32 sys_semaphore_wait(u32 sem_id, u64 timeout)
{
sys_semaphore.Log("sys_semaphore_wait(sem_id=%d, timeout=%lld)", sem_id, timeout);
Semaphore* sem;
if (!Emu.GetIdManager().GetIDData(sem_id, sem))
{
return CELL_ESRCH;
}
const u32 tid = GetCurrentPPUThread().GetId();
const u64 start_time = get_system_time();
{
std::lock_guard<std::mutex> lock(sem->m_mutex);
if (sem->m_value > 0)
{
sem->m_value--;
return CELL_OK;
}
sem->m_queue.push(tid);
}
while (true)
{
if (Emu.IsStopped())
{
sys_semaphore.Warning("sys_semaphore_wait(%d) aborted", sem_id);
return CELL_OK;
}
if (timeout && get_system_time() - start_time > timeout)
{
sem->m_queue.invalidate(tid);
return CELL_ETIMEDOUT;
}
if (tid == sem->signal)
{
std::lock_guard<std::mutex> lock(sem->m_mutex);
if (tid != sem->signal)
{
continue;
}
sem->signal = 0;
// TODO: notify signaler
return CELL_OK;
}
SM_Sleep();
}
}
s32 sys_semaphore_post(u32 sem_id, s32 count)
{
sys_semaphore.Log("sys_semaphore_post(sem_id=%d, count=%d)", sem_id, count);
Semaphore* sem;
if (!Emu.GetIdManager().GetIDData(sem_id, sem))
{
return CELL_ESRCH;
}
if (count < 0)
{
return CELL_EINVAL;
}
if (count + sem->m_value - (s32)sem->m_queue.count() > sem->max)
{
return CELL_EBUSY;
}
while (count > 0)
{
if (Emu.IsStopped())
{
sys_semaphore.Warning("sys_semaphore_post(%d) aborted", sem_id);
return CELL_OK;
}
std::lock_guard<std::mutex> lock(sem->m_mutex);
if (sem->signal && sem->m_queue.count())
{
SM_Sleep();
continue;
}
if (u32 target = (sem->protocol == SYS_SYNC_FIFO) ? sem->m_queue.pop() : sem->m_queue.pop_prio())
{
count--;
sem->signal = target;
Emu.GetCPU().NotifyThread(target);
}
else
{
sem->m_value += count;
count = 0;
}
}
return CELL_OK;
}
void sys_ppu_thread_once(mem_ptr_t<std::atomic<be_t<u32>>> once_ctrl, u32 entry)
{
sysPrxForUser->Warning("sys_ppu_thread_once(once_ctrl_addr=0x%x, entry=0x%x)", once_ctrl.GetAddr(), entry);
be_t<u32> old = SYS_PPU_THREAD_ONCE_INIT;
if (once_ctrl->compare_exchange_weak(old, SYS_PPU_THREAD_DONE_INIT))
{
CPUThread& new_thread = Emu.GetCPU().AddThread(CPU_THREAD_PPU);
new_thread.SetEntry(entry);
new_thread.Run();
new_thread.Exec();
while (new_thread.IsAlive()) SM_Sleep();
}
}
s32 sys_cond_wait(u32 cond_id, u64 timeout)
{
sys_cond.Log("sys_cond_wait(cond_id=%d, timeout=%lld)", cond_id, timeout);
Cond* cond;
if (!Emu.GetIdManager().GetIDData(cond_id, cond))
{
return CELL_ESRCH;
}
Mutex* mutex = cond->mutex;
u32 tid = GetCurrentPPUThread().GetId();
if (mutex->m_mutex.GetOwner() != tid)
{
sys_cond.Warning("sys_cond_wait(cond_id=%d) failed (EPERM)", cond_id);
return CELL_EPERM;
}
cond->m_queue.push(tid);
if (mutex->recursive != 1)
{
sys_cond.Warning("sys_cond_wait(cond_id=%d): associated mutex had wrong recursive value (%d)", cond_id, mutex->recursive);
}
mutex->recursive = 0;
mutex->m_mutex.unlock(tid, mutex->protocol == SYS_SYNC_PRIORITY ? mutex->m_queue.pop_prio() : mutex->m_queue.pop());
u64 counter = 0;
const u64 max_counter = timeout ? (timeout / 1000) : ~0ull;
while (true)
{
if (cond->signal.unlock(tid, tid) == SMR_OK)
{
//const u64 stamp2 = get_system_time();
if (SMutexResult res = mutex->m_mutex.trylock(tid))
{
if (res != SMR_FAILED)
{
goto abort;
}
mutex->m_queue.push(tid);
switch (mutex->m_mutex.lock(tid))
{
case SMR_OK:
mutex->m_queue.invalidate(tid);
case SMR_SIGNAL:
break;
default:
goto abort;
}
}
mutex->recursive = 1;
const volatile u64 stamp = cond->signal_stamp;
cond->signal.unlock(tid);
Emu.GetCPU().NotifyThread(cond->signaler);
//ConLog.Write("sys_cond_wait(): signal latency %lld (minimum %lld)", get_system_time() - stamp, stamp2 - stamp);
return CELL_OK;
}
SM_Sleep();
if (counter++ > max_counter)
{
cond->m_queue.invalidate(tid);
GetCurrentPPUThread().owned_mutexes--; // ???
return CELL_ETIMEDOUT;
}
if (Emu.IsStopped())
{
goto abort;
}
}
abort:
sys_cond.Warning("sys_cond_wait(id=%d) aborted", cond_id);
return CELL_OK;
}