mirror of https://github.com/mkerrisk/man-pages
97 lines
2.0 KiB
Groff
97 lines
2.0 KiB
Groff
.\" Copyright (C) 2003 Free Software Foundation, Inc.
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.\" This file is distributed according to the GNU General Public License.
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.\" See the file COPYING in the top level source directory for details.
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.\"
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.de Sh \" Subsection
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.br
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.if t .Sp
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.ne 5
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.PP
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\fB\\$1\fR
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.PP
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..
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.de Sp \" Vertical space (when we can't use .PP)
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.if n .sp
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..
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.TH "IO_SUBMIT" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
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.SH NAME
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io_submit \- Submit asynchronous I/O blocks for processing
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.SH "SYNOPSIS"
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.ad l
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.hy 0
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#include <linux/aio.h>
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.sp
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.HP 16
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long\ \fBio_submit\fR\ (aio_context_t\ \fIctx_id\fR, long\ \fInr\fR, struct\ iocb\ \fI**iocbpp\fR);
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.ad
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.hy
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.SH "DESCRIPTION"
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.PP
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\fBio_submit\fR queues \fInr\fR I/O request blocks for processing in
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the AIO context \fIctx_id\fR. \fIiocbpp\fR should be an array of
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\fInr\fR AIO request blocks, which will be submitted to context \fIctx_id\fR.
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.SH "RETURN VALUE"
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.PP
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\fBio_submit\fR returns the number of \fIiocb\fRs submitted and
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0 if \fInr\fR is zero.
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.SH "ERRORS"
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.TP
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EINVAL
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The \fIaio_context\fR specified by \fIctx_id\fR is invalid.
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\fInr\fR is less than 0. The \fIiocb\fR at *iocbpp[0] is not properly
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initialized, or the operation specified is invalid for the file descriptor
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in the \fIiocb\fR.
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.TP
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EFAULT
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One of the data structures points to invalid data.
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.TP
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EBADF
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The file descriptor specified in the first \fIiocb\fR is invalid.
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.TP
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EAGAIN
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Insufficient resources are available to queue any \fIiocb\fRs.
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.TP
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ENOSYS
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\fBio_submit\fR is not implemented on this architecture.
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.SH "CONFORMING TO"
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.PP
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\fBio_submit\fR is Linux specific and should not be used in programs that are intended to be portable.
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.SH "VERSIONS"
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.PP
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The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
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.SH "SEE ALSO"
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.PP
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\fBio_setup\fR(2), \fBio_destroy\fR(2), \fBio_getevents\fR(2), \fBio_cancel\fR(2).
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.SH "NOTES"
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.PP
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The asynchronous I/O system calls were written by Benjamin LaHaise.
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.SH AUTHOR
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Kent Yoder.
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