Sha256: e5360366e098367a727c1ddb4c9d4d458637b6561c6755672e59029c6115e395
Contents?: true
Size: 1.25 KB
Versions: 13
Compression:
Stored size: 1.25 KB
Contents
.\" 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 .B #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 .SH DESCRIPTION .PP The .BR io_uring_wait_cqe_nr (3) function returns .I wait_nr IO completion events from the queue belonging to the .I ring param, waiting for it if necessary. If the requested number of events are already available in the ring when invoked, no waiting will occur. The .I cqe_ptr param is filled in on success. After the caller has submitted a request with .BR io_uring_submit (3), the application can retrieve the completion with .BR io_uring_wait_cqe (3). .SH RETURN VALUE On success .BR io_uring_wait_cqe_nr (3) returns 0 and the cqe_ptr param is filled in. On failure it returns .BR -errno . The return value indicates the result of waiting for a CQE, and it has no relation to the CQE result itself. .SH SEE ALSO .BR io_uring_submit (3), .BR io_uring_wait_cqes (3)
Version data entries
13 entries across 13 versions & 1 rubygems