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由 Christoph Hellwig 提交于
Simple one-shot poll through the io_submit() interface. To poll for a file descriptor the application should submit an iocb of type IOCB_CMD_POLL. It will poll the fd for the events specified in the the first 32 bits of the aio_buf field of the iocb. Unlike poll or epoll without EPOLLONESHOT this interface always works in one shot mode, that is once the iocb is completed, it will have to be resubmitted. Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
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