public Result ResetFences(IMgFence[] pFences)
{
foreach (var fence in pFences)
{
IGLFence bFence = (IGLFence)fence;
bFence.Reset();
}
return(Result.SUCCESS);
}
public Result WaitForFences(IMgFence[] pFences, bool waitAll, ulong timeout)
{
if (timeout == 0)
{
// report current state only
// NO WAITING AT ALL
foreach (var fence in pFences)
{
IGLFence bFence = (IGLFence)fence;
// TODO MAYBE NON BLOCKING ONLY
if (!bFence.IsSignalled)
{
return(Result.TIMEOUT);
}
}
return(Result.SUCCESS);
}
else
{
Stopwatch timer = new Stopwatch();
var noOfFences = pFences.Length;
ulong elapsedInNanoSecs = 0UL;
var remainingTime = timeout;
var currentFence = 0;
do
{
IGLFence bFence = (IGLFence)pFences[currentFence];
timer.Start();
// ONE AT A TIME
var isSignalled = bFence.IsReady((long)remainingTime);
timer.Stop();
elapsedInNanoSecs = (ulong)((timer.ElapsedTicks * 1000000000) / Stopwatch.Frequency);
// remove elapsed time from timeout
remainingTime -= elapsedInNanoSecs;
if (isSignalled)
{
currentFence += 1;
}
// COMPLETED LAST FENCE
if (currentFence >= noOfFences)
{
return(Result.SUCCESS);
}
}while (elapsedInNanoSecs < timeout);
return(Result.TIMEOUT);
}
}
public Result GetFenceStatus(IMgFence fence)
{
IGLFence bFence = (IGLFence)fence;
return((bFence.IsSignalled) ? Result.SUCCESS : Result.NOT_READY);
}
