/// <summary>
/// Move gc a step forward.
/// </summary>
private void SingleStep(bool forceGC)
{
switch (gcState)
{
case GCState.Pause:
if (gcDebt <= 0 || forceGC)
{
gcState = GCState.WaitingForRoots;
}
break;
case GCState.WaitingForRoots:
break;
case GCState.Propagate:
if (grayList.Any())
{
totalTraversed += RecursiveMark(grayList.First());
grayList.RemoveFirst();
}
else
{
gcState = GCState.Sweep;
}
break;
case GCState.Sweep:
Sweep();
MarkAllWhite();
gcState = GCState.Pause;
IsGCRunning = false;
break;
}
}
/// <summary>
/// Notify the heap that gc roots are ready so that gc could move
/// forward. The executive is passed for dispoing objects.
/// </summary>
/// <param name="gcroots"></param>
/// <param name="exe"></param>
/// <returns></returns>
public bool SetRoots(IEnumerable <StackValue> gcroots, Executive exe)
{
if (gcroots == null)
{
throw new ArgumentNullException("gcroots");
}
if (exe == null)
{
throw new ArgumentNullException("exe");
}
if (!IsWaitingForRoots)
{
return(false);
}
var validPointers = gcroots.Where(r => r.IsReferenceType &&
r.RawData < heapElements.Count() &&
r.RawData >= 0 &&
heapElements[(int)r.RawData] != null);
roots = new List <StackValue>(validPointers);
executive = exe;
StartCollection();
gcState = GCState.Propagate;
return(true);
}
public void SetState(GCState state)
{
switch (state)
{
case GCState.LEVEL_ENTRY_STATE_ENTER:
{
m_doorRightIsOpen = false;
m_levelComplete = false;
string level_str = string.Format("level_{0:00}", m_levelNumber);
m_levelEntities.LevelStop();
m_levelEntities.LevelLoad(level_str);
string[] entities_1 = { "ball_mesh", "paddle_entry_mesh" };
m_levelEnvironment.EnableEntities(entities_1);
m_levelNumber++;
UpdatePaddleNumber(m_paddleSpare);
}
break;
case GCState.LEVEL_ENTRY_STATE_EXIT:
{
string[] entities = { "ball_mesh", "paddle_entry_mesh" };
m_levelEnvironment.DisableEntities(entities);
}
break;
case GCState.LEVEL_START_STATE_ENTER:
{
m_levelEntities.LevelStart();
}
break;
case GCState.LEVEL_CLEARED_STATE_ENTER:
break;
case GCState.LEVEL_CLEARED_STATE_EXIT:
{
}
break;
case GCState.LEVEL_PADDLE_LOST_STATE_ENTER:
{
SaveConfig();
m_levelEnvironment.EnableSparePaddleMesh();
break;
}
case GCState.LEVEL_PADDLE_LOST_STATE_EXIT:
{
m_levelEnvironment.DisableSparePaddleMesh();
}
break;
default:
break;
}
}