Copyright (c) 1999 Softweyr LLC.
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.Dd January 2, 2021 .Dt AIO_ERROR 2 .Os .Sh NAME .Nm aio_error .Nd retrieve error status of asynchronous I/O operation (REALTIME) .Sh LIBRARY .Lb libc .Sh SYNOPSIS n aio.h .Ft int .Fn aio_error "const struct aiocb *iocb" .Sh DESCRIPTION The .Fn aio_error system call returns the error status of the asynchronous I/O request associated with the structure pointed to by .Fa iocb . .Sh RETURN VALUES If the asynchronous I/O request has completed successfully, .Fn aio_error returns 0. If the request has not yet completed, .Er EINPROGRESS is returned. If the request has completed unsuccessfully the error status is returned as described in .Xr read 2 , .Xr readv 2 , .Xr write 2 , .Xr writev 2 , or .Xr fsync 2 . On failure, .Fn aio_error returns .Dv -1 and sets .Dv errno to indicate the error condition. .Sh ERRORS The .Fn aio_error system call will fail if: l -tag -width Er t Bq Er EINVAL The .Fa iocb argument does not reference an outstanding asynchronous I/O request. .El .Sh SEE ALSO .Xr aio_cancel 2 , .Xr aio_read 2 , .Xr aio_readv 2 , .Xr aio_return 2 , .Xr aio_suspend 2 , .Xr aio_write 2 , .Xr aio_writev 2 , .Xr fsync 2 , .Xr read 2 , .Xr write 2 , .Xr aio 4 .Sh STANDARDS The .Fn aio_error system call is expected to conform to the .St -p1003.1 standard. .Sh HISTORY The .Fn aio_error system call first appeared in .Fx 3.0 . .Sh AUTHORS This manual page was written by .An Wes Peters Aq Mt wes@softweyr.com .
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY Softweyr LLC AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL Softweyr LLC OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
.Dd January 2, 2021 .Dt AIO_ERROR 2 .Os .Sh NAME .Nm aio_error .Nd retrieve error status of asynchronous I/O operation (REALTIME) .Sh LIBRARY .Lb libc .Sh SYNOPSIS n aio.h .Ft int .Fn aio_error "const struct aiocb *iocb" .Sh DESCRIPTION The .Fn aio_error system call returns the error status of the asynchronous I/O request associated with the structure pointed to by .Fa iocb . .Sh RETURN VALUES If the asynchronous I/O request has completed successfully, .Fn aio_error returns 0. If the request has not yet completed, .Er EINPROGRESS is returned. If the request has completed unsuccessfully the error status is returned as described in .Xr read 2 , .Xr readv 2 , .Xr write 2 , .Xr writev 2 , or .Xr fsync 2 . On failure, .Fn aio_error returns .Dv -1 and sets .Dv errno to indicate the error condition. .Sh ERRORS The .Fn aio_error system call will fail if: l -tag -width Er t Bq Er EINVAL The .Fa iocb argument does not reference an outstanding asynchronous I/O request. .El .Sh SEE ALSO .Xr aio_cancel 2 , .Xr aio_read 2 , .Xr aio_readv 2 , .Xr aio_return 2 , .Xr aio_suspend 2 , .Xr aio_write 2 , .Xr aio_writev 2 , .Xr fsync 2 , .Xr read 2 , .Xr write 2 , .Xr aio 4 .Sh STANDARDS The .Fn aio_error system call is expected to conform to the .St -p1003.1 standard. .Sh HISTORY The .Fn aio_error system call first appeared in .Fx 3.0 . .Sh AUTHORS This manual page was written by .An Wes Peters Aq Mt wes@softweyr.com .