Function SelectThread

libs/dolphin/os/OSThread.c:251–322

}

static OSThread *SelectThread(BOOL yield)
{
  OSContext *currentContext;
  OSThread *currentThread;
  OSThread *nextThread;
  OSPriority priority;
  OSThreadQueue *queue;

  if (0 < Reschedule)
  {
    return 0;
  }

  currentContext = OSGetCurrentContext();
  currentThread = OSGetCurrentThread();
  if (currentContext != &currentThread->context)
  {
    return 0;
  }

  if (currentThread)
  {
    if (currentThread->state == OS_THREAD_STATE_RUNNING)
    {
      if (!yield)
      {
        priority = __cntlzw(RunQueueBits);
        if (currentThread->priority <= priority)
        {
          return 0;
        }
      }
      currentThread->state = OS_THREAD_STATE_READY;
      SetRun(currentThread);
    }

    if (!(currentThread->context.state & OS_CONTEXT_STATE_EXC) && OSSaveContext(&currentThread->context))
    {
      return 0;
    }
  }

  if (RunQueueBits == 0)
  {
    SwitchThreadCallback(__OSCurrentThread, nullptr);
    __OSCurrentThread = nullptr;
    OSSetCurrentContext(&IdleContext);
    do
    {
      OSEnableInterrupts();
      while (RunQueueBits == 0)
        ;
      OSDisableInterrupts();
    } while (RunQueueBits == 0);

    OSClearContext(&IdleContext);
  }