1io_uring_buf_ring_add(3)        liburing Manual       io_uring_buf_ring_add(3)
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NAME

6       io_uring_buf_ring_add - add buffers to a shared buffer ring
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SYNOPSIS

9       #include <liburing.h>
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11       int io_uring_buf_ring_add(struct io_uring_buf_ring *br,
12                                 void *addr,
13                                 unsigned int len,
14                                 unsigned short bid,
15                                 int mask,
16                                 int buf_offset);
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DESCRIPTION

19       The  io_uring_buf_ring_add(3)  adds  a  new buffer to the shared buffer
20       ring br.  The buffer address is indicated by addr and is of  len  bytes
21       of  length.   bid  is the buffer ID, which will be returned in the CQE.
22       mask  is  the  size  mask  of   the   ring,   available   from   io_ur‐
23       ing_buf_ring_mask(3).   buf_offset  is the offset to insert at from the
24       current tail. If just one buffer is provided before the  ring  tail  is
25       committed with io_uring_buf_ring_advance(3) or io_uring_buf_ring_cq_ad‐
26       vance(3), then buf_offset should be 0. If buffers  are  provided  in  a
27       loop  before being committed, the buf_offset must be incremented by one
28       for each buffer added.
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RETURN VALUE

32       None
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SEE ALSO

35       io_uring_register_buf_ring(3),    io_uring_buf_ring_mask(3),     io_ur‐
36       ing_buf_ring_advance(3), io_uring_buf_ring_cq_advance(3)
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40liburing-2.2                     May 18, 2022         io_uring_buf_ring_add(3)