private unsafe void AsyncReadPagesCallback(uint errorCode, uint numBytes, object context)
{
try
{
var result = (PageAsyncReadResult <Empty>)context;
if (errorCode != 0)
{
Trace.TraceError("AsyncReadPagesCallback error: {0}", errorCode);
result.cts?.Cancel();
}
if (result.freeBuffer1 != null)
{
if (errorCode == 0)
{
allocator.PopulatePage(result.freeBuffer1.GetValidPointer(), result.freeBuffer1.required_bytes, result.page);
}
result.freeBuffer1.Return();
result.freeBuffer1 = null;
}
if (errorCode == 0)
{
result.handle?.Signal();
}
Interlocked.MemoryBarrier();
}
catch when(disposed)
{
}
}
private unsafe void AsyncReadPagesCallback(uint errorCode, uint numBytes, NativeOverlapped *overlap)
{
var result = (PageAsyncReadResult <Empty>)Overlapped.Unpack(overlap).AsyncResult;
if (errorCode != 0)
{
Trace.TraceError("OverlappedStream GetQueuedCompletionStatus error: {0}", errorCode);
result.cts?.Cancel();
}
if (result.freeBuffer1 != null)
{
if (errorCode == 0)
{
allocator.PopulatePage(result.freeBuffer1.GetValidPointer(), result.freeBuffer1.required_bytes, result.page);
}
result.freeBuffer1.Return();
result.freeBuffer1 = null;
}
if (errorCode == 0)
{
result.handle?.Signal();
}
Interlocked.MemoryBarrier();
Overlapped.Free(overlap);
}