public bool Raised(long timeout)
{
if (timeout == 0)
{
WaitSyncStatus s = WaitSyncStatus.WaitFailed;
while (s != WaitSyncStatus.ConditionSatisfied && s != WaitSyncStatus.AlreadySignaled)
{
s = GL.ClientWaitSync(id, ClientWaitSyncFlags.SyncFlushCommandsBit, 10);
}
return(true);
}
else
{
WaitSyncStatus s = GL.ClientWaitSync(id, ClientWaitSyncFlags.SyncFlushCommandsBit, timeout);
if (s == WaitSyncStatus.ConditionSatisfied || s == WaitSyncStatus.AlreadySignaled)
{
return(true);
}
else
{
return(false);
}
}
}
private bool BlockingWait(long timeInNanoSecs)
{
WaitSyncStatus status = GL.ClientWaitSync(ObjectPtr, mWaitOption, timeInNanoSecs);
// BLOCKING WAITING
if (status == WaitSyncStatus.WaitFailed)
{
throw new InvalidOperationException("GPU BlockingWait sync failed - surplus actions completed");
}
// HAS NOT COMPLETED
return(status == WaitSyncStatus.ConditionSatisfied || status == WaitSyncStatus.AlreadySignaled);
}
private void Sync()
{
GL.MemoryBarrier(MemoryBarrierFlags.ClientMappedBufferBarrierBit);
IntPtr sync = GL.FenceSync(SyncCondition.SyncGpuCommandsComplete, WaitSyncFlags.None);
WaitSyncStatus syncResult = GL.ClientWaitSync(sync, ClientWaitSyncFlags.SyncFlushCommandsBit, 1000000000);
if (syncResult == WaitSyncStatus.TimeoutExpired)
{
Logger.Error?.PrintMsg(LogClass.Gpu, $"Failed to sync persistent buffer state within 1000ms. Continuing...");
}
GL.DeleteSync(sync);
}
private bool NonBlockingWait()
{
// only on the first time
ClientWaitSyncFlags waitOption = ClientWaitSyncFlags.SyncFlushCommandsBit;
WaitSyncStatus result = GL.ClientWaitSync(ObjectPtr, waitOption, 0);
waitOption = ClientWaitSyncFlags.None;
if (result == WaitSyncStatus.WaitFailed)
{
throw new InvalidOperationException("GPU NonBlockingWait sync failed - surplus actions incomplete");
}
return(!(result == WaitSyncStatus.ConditionSatisfied || result == WaitSyncStatus.AlreadySignaled));
}
public void Cleanup()
{
// Iterate through handles and remove any that have already been signalled.
while (true)
{
SyncHandle first = null;
lock (Handles)
{
first = Handles.FirstOrDefault();
}
if (first == null)
{
break;
}
WaitSyncStatus syncResult = GL.ClientWaitSync(first.Handle, ClientWaitSyncFlags.SyncFlushCommandsBit, 0);
if (syncResult == WaitSyncStatus.AlreadySignaled)
{
// Delete the sync object.
lock (Handles)
{
lock (first)
{
_firstHandle = first.ID + 1;
Handles.RemoveAt(0);
GL.DeleteSync(first.Handle);
first.Handle = IntPtr.Zero;
}
}
}
else
{
// This sync handle and any following have not been reached yet.
break;
}
}
}
public void Wait(ulong id)
{
SyncHandle result = null;
lock (Handles)
{
if ((long)(_firstHandle - id) > 0)
{
return; // The handle has already been signalled or deleted.
}
foreach (SyncHandle handle in Handles)
{
if (handle.ID == id)
{
result = handle;
break;
}
}
}
if (result != null)
{
lock (result)
{
if (result.Handle == IntPtr.Zero)
{
return;
}
WaitSyncStatus syncResult = GL.ClientWaitSync(result.Handle, ClientWaitSyncFlags.SyncFlushCommandsBit, 1000000000);
if (syncResult == WaitSyncStatus.TimeoutExpired)
{
Logger.Error?.PrintMsg(LogClass.Gpu, $"GL Sync Object {result.ID} failed to signal within 1000ms. Continuing...");
}
}
}
}
private bool BlockingWait()
{
int times = 0;
++TotalBlockingWaits;
do
{
WaitSyncStatus status = GL.ClientWaitSync(ObjectPtr, ClientWaitSyncFlags.None, Duration);
// BLOCKING WAITING
if (status == WaitSyncStatus.WaitFailed)
{
throw new InvalidOperationException("GPU BlockingWait sync failed - surplus actions completed");
}
else if (status == WaitSyncStatus.ConditionSatisfied || status == WaitSyncStatus.AlreadySignaled)
{
return(false);
}
++times;
}while (times < BlockingRetries);
++TotalFailures;
// still waiting
return(true);
}