Sha256: 11e2e81891832c299b00918f985382a566aee3f5c167073fa260411735c70e98
Contents?: true
Size: 1.5 KB
Versions: 9
Compression:
Stored size: 1.5 KB
Contents
.\" Copyright (C) 2022 Jens Axboe <axboe@kernel.dk> .\" .\" SPDX-License-Identifier: LGPL-2.0-or-later .\" .TH io_uring_prep_send 3 "March 12, 2022" "liburing-2.2" "liburing Manual" .SH NAME io_uring_prep_send \- prepare a send request .SH SYNOPSIS .nf .B #include <liburing.h> .PP .BI "void io_uring_prep_send(struct io_uring_sqe *" sqe "," .BI " int " sockfd "," .BI " const void *" buf "," .BI " size_t " len "," .BI " int " flags ");" .fi .SH DESCRIPTION .PP The .BR io_uring_prep_send (3) function prepares a send request. The submission queue entry .I sqe is setup to use the file descriptor .I sockfd to start sending the data from .I buf of size .I len bytes and with modifier flags .IR flags . Note that using .B IOSQE_IO_LINK with this request type requires the setting of .B MSG_WAITALL in the .IR flags argument, as a short send isn't a considered an error condition without that being set. This function prepares an async .BR send (2) request. See that man page for details. .SH RETURN VALUE None .SH ERRORS The CQE .I res field will contain the result of the operation. See the related man page for details on possible values. Note that where synchronous system calls will return .B -1 on failure and set .I errno to the actual error value, io_uring never uses .IR errno . Instead it returns the negated .I errno directly in the CQE .I res field. .SH SEE ALSO .BR io_uring_get_sqe (3), .BR io_uring_submit (3), .BR send (2)
Version data entries
9 entries across 9 versions & 1 rubygems