PopIoRingCompletion function (ioringapi.h)

Pops a single entry from the completion queue, if one is available.

Syntax

HRESULT PopIoRingCompletion(
  HIORING    ioRing,
  IORING_CQE *cqe
);

ioRing

An HIORING representing a handle to the I/O ring from which an entry from the completion queue is popped.

cqe

Pointer to an IORING_CQE structure that will recieve the data for the completed queue entry.

Returns an HRESULT including, but not limitted to the following:

Value	Description
S_OK	The entry was popped from the queue and the IORING_CQE pointed to by cqe contains the values from the entry.
S_FALSE	The completion queue is empty, and the data pointed to by the cqe parameter is unmodified.