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.\" Copyright (C) 2021 Stefan Roesch <shr@fb.com>
.\"
.\" SPDX-License-Identifier: LGPL-2.0-or-later
.\"
.TH io_uring_wait_cqe_nr 3 "November 15, 2021" "liburing-2.1" "liburing Manual"
.SH NAME
io_uring_wait_cqe_nr - wait for one or more io_uring completion events
.SH SYNOPSIS
.nf
.BR "#include <liburing.h>"
.PP
.BI "int io_uring_wait_cqe_nr(struct io_uring *ring,"
.BI "                         struct io_uring_cqe **cqe_ptr,"
.BI "                         unsigned wait_nr)"
.fi
.PP
.SH DESCRIPTION
.PP
The io_uring_wait_cqe_nr() function returns
.I wait_nr
IO completion events from the
queue belonging to the
.I ring
param, waiting for it if necessary. The
.I cqe_ptr
param is filled in on success.

After the caller has submitted a request with io_uring_submit(), he can retrieve
the completion with io_uring_wait_cqe_nr().

.SH RETURN VALUE
On success
.BR io_uring_wait_cqe_nr (3)
returns 0 and the cqe_ptr parm is filled in. On failure it returns -errno.
.SH SEE ALSO
.BR io_uring_submit (3),  io_uring_wait_cqes (3)

Version data entries

8 entries across 8 versions & 1 rubygems

Version Path
polyphony-0.94 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.93 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.92 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.91 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.90 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.89 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.87 vendor/liburing/man/io_uring_wait_cqe_nr.3
polyphony-0.86 vendor/liburing/man/io_uring_wait_cqe_nr.3