On 5/20/21 5:51 AM, Drew DeVault wrote: > Hi folks! I'm trying to use IO_TIMEOUT to insert a pause in the middle > of my SQ. I set the off (desired number of events to wait for) to zero, > which according to the docs just makes it behave like a timer. > > Essentially, I want the following: > > [operations...] > OP_TIMEOUT > [operations...] > > To be well-ordered, so that the second batch executes after the first. > To accomplish this, I've tried to submit the first operation of the > second batch with IO_DRAIN, which causes the CQE to be delayed, but > ultimately it fails with EINTR instead of just waiting to execute. > > I understand that the primary motivator for OP_TIMEOUT is to provide a > timeout functionality for other CQEs. Is my use-case not accomodated by > io_uring? > Have you tried setting `IO_DRAIN` on the timeout operation itself? -- - Alex O'Brien <alex@xxxxxxxxxxxx>
