NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON
io_uring_buf_ring_cq_advance - advance index of provided buffer and CQ ring
#include <liburing.h> void io_uring_buf_ring_cq_advance(struct io_uring *ring, struct io_uring_buf_ring *br, int count);
The io_uring_buf_ring_cq_advance(3) commits count previously added buffers to the shared buffer ring br, making them visible to the kernel and hence consumable. This passes ownership of the buffer to the ring. At the same time, it advances the CQ ring of ring by count amount. This effectively bundles both a io_uring_buf_ring_advance(3) call and a io_uring_cq_avance(3) into one operation. Since updating either ring index entails a store memory barrier, doing both at once is more efficient.
io_uring_register_buf_ring(3), io_uring_buf_ring_add(3), io_uring_buf_ring_advance(3)
This page is part of the liburing (A library for io_uring) project. Information about the project can be found at ⟨https://github.com/axboe/liburing⟩. If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/axboe/liburing⟩ on 2022-12-17. (At that time, the date of the most recent commit that was found in the repository was 2022-12-12.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com liburing-2.2 May 18, 2022io_uring_buf_ring_cq_advance(3)
Pages that refer to this page: io_uring_buf_ring_add(3), io_uring_buf_ring_advance(3), io_uring_buf_ring_cq_advance(3), io_uring_buf_ring_init(3), io_uring_register_buf_ring(3)