Some I/O improvements in Windows Server 2008

re: Some I/O improvements in Windows Server 2008

Wesley Backelant — Wed, 17 Sep 2008 09:13:52 GMT

Maybe the description could be more clear indeed but like you say, GetLastError works like normal and should be checked.

phrosty — Wed, 17 Sep 2008 03:34:17 GMT

OVERLAPPED_ENTRY doesn't have any field for errors.

From the documentation, I would take it that no error information is returned:

This function returns TRUE when at least one pending I/O is completed.

This function returns FALSE when no I/O operation was dequeued.

Unless this is badly worded and means if an I/O error occurs, FALSE is returned with 1 removed and GetLastError works like normal.

Wesley Backelant — Tue, 09 Sep 2008 10:14:27 GMT

Doesn't it return an errorcode just like GetQueuedCompletionStatus?

phrosty — Sat, 06 Sep 2008 19:44:56 GMT

Is GetQueuedCompletionStatusEx really an improvement? There doesn't seem to be any way to get error information for each completion entry.