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Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Replace io_uring_wait_cqes() with the simpler io_uring_wait_cqe_nr(). Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
When creating a new IoUring instance, some feature flags needs additional configuraiton data, such as SQ_AFF needing a cpu id and ATTACH_WQ needing a reference io_uring fd. An advanced Builder is needed to support these flags. Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Safe Wrapping<u32> should be used instead of u32. Also validate the input parameter `count` for safety. Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Both HardLinked and SoftLinked provides terminate() method to mark the end of IO chain, so there may be left over descriptors on the CQEs. Ensure all possible left over descriptors are consumed when dropping. Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Ensure all descriptors returned by SQEs are zeroed for safety. Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Now all allocated event descriptor are zeroed, there's no need to call pre_nop() for every descriptor any more. Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
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When reading the iou code, I found there are possible bugs and worked out fixes for them.
But I have no io_uring capable systems to trigger and reproduce the bug:(