1999-07-01 19:58:12 +00:00
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.\" Copyright (c) 1999 Softweyr LLC.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY Softweyr LLC AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL Softweyr LLC OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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1999-07-01 21:13:06 +00:00
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.\" $Id: aio_suspend.2,v 1.2 1999/07/01 21:09:57 mpp Exp $
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1999-07-01 19:58:12 +00:00
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.\"
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.Dd June 2, 1999
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.Dt AIO_SUSPEND 2
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.Os
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.Sh NAME
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.Nm aio_suspend
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1999-07-01 21:09:57 +00:00
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.Nd suspend until asynchronous I/O operations or timeout complete (REALTIME)
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.Sh SYNOPSIS
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.Fd #include <aio.h>
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.Ft int
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.Fn aio_suspend "const struct aiocb * const iocbs[]" "int niocb" "const struct timespec * timeout"
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.Sh DESCRIPTION
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The
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.Fn aio_suspend
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function suspends the calling process until all of the specified
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asynchronous I/O requests have completed or the
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.Ar timeout
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has passed.
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.Ar iocbs
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is an array of
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.Ar niocb
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pointers to asynchronous I/O requests. Array members containing NULL
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will be silently ignored.
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.Sh RETURN VALUES
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If all of the specified asynchronous I/O requests have completed,
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.Fn aio_suspend
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returns 0. If the
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.Ar timeout
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expired,
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.Dv EAGAIN
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is returned. Other return values indicate an error condition as
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detailed below.
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.Sh SEE ALSO
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.Xr aio_error 2 ,
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.Xr aio_read 2 ,
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.Xr aio_write 2 ,
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.Xr aio_cancel 2 ,
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.Xr aio_suspend 2.
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.Sh ERRORS
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The
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.Fn aio_suspend
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function will fail if:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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.Ar iocbs
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contains more than
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.Dv AIO_LISTIO_MAX asynchronous I/O requests, or at least one
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of the requests is not valid.
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.It Bq Er EINTR
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the suspend was interrupted by a signal.
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.El
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.Sh STANDARDS
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.Fn aio_suspend
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is expected to conform to the
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.St -p1003.2
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standard.
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.Sh HISTORY
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The
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.Nm
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function first appeared in
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.Fx 3.0 .
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.Sh AUTHOR
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This
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manual page was written by
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.An Wes Peters Aq wes@softweyr.com .
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