io_uring_buf_ring_add(3) liburing Manual io_uring_buf_ring_add(3)
io_uring_buf_ring_add - add buffers to a shared buffer ring
#include <liburing.h> void io_uring_buf_ring_add(struct io_uring_buf_ring *br, void *addr, unsigned int len, unsigned short bid, int mask, int buf_offset);
The io_uring_buf_ring_add(3) adds a new buffer to the shared buffer ring br. The buffer address is indicated by addr and is of len bytes of length. bid is the buffer ID, which will be returned in the CQE. mask is the size mask of the ring, available from io_uring_buf_ring_mask(3). buf_offset is the offset to insert at from the current tail. If just one buffer is provided before the ring tail is committed with io_uring_buf_ring_advance(3) or io_uring_buf_ring_cq_advance(3), then buf_offset should be 0. If buffers are provided in a loop before being committed, the buf_offset must be incremented by one for each buffer added.
io_uring_register_buf_ring(3), io_uring_buf_ring_mask(3), io_uring_buf_ring_advance(3), io_uring_buf_ring_cq_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 2023-06-23. (At that time, the date of the most recent commit that was found in the repository was 2023-06-22.) 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, 2022 io_uring_buf_ring_add(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_cq_advance(3), io_uring_buf_ring_init(3), io_uring_buf_ring_mask(3), io_uring_register_buf_ring(3), io_uring_setup_buf_ring(3)