io_uring_cqe_nr3
Return the number of cq ring slots consumed by a cqe
Usage
#include <liburing.h>
unsigned io_uring_cqe_nr(const struct io_uring_cqe *cqe);
Overview
The io_uring_cqe_nr(3) function returns the number of CQ ring slots consumed by cqe. For normal 16-byte CQEs, this returns 1. For 32-byte CQEs (when IORING_CQE_F_32 is set in the CQE flags), this returns 2.
This function is useful when advancing the CQ ring with io_uring_cq_advance(3) on rings that use IORING_SETUP_CQE_MIXED where both 16-byte and 32-byte CQEs may be present.
Return value
Returns 1 for normal CQEs, or 2 for 32-byte CQEs.