Messages in this thread | | | From | Jeff Moyer <> | Subject | Re: libaio asynchronous syscall io_getevents blocks on error | Date | Tue, 20 Oct 2009 18:25:09 -0400 |
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Zubin Dittia <zubin@tintri.com> writes:
> I'm writing a program that uses the kernel's io_submit/io_getevents > system calls. What I would like to be able to do is submit N > operations for i/o on different files, and then call io_getevents with > min_nr = nr = N and a timeout of NULL, so that I can block until all N > operations have completed. This works great, except when one of the > operations has an error (eg., if one of the descriptors is invalid). > In this case, the call to io_getevents appears to block indefinitely. > Shouldn't an error on one of the submitted operations count as a > completion event for that operation, so I can check the error code > when the call returns? Any help would be appreciated.
Did you check the return value of io_submit?
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