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AIO_RETURN(2FREEBSD) - Linux man page online | System calls

Retrieve return status of asynchronous I/O operation (REALTIME).

Chapter
March 21, 2016
AIO_RETURN(2) BSD System Calls Manual AIO_RETURN(2)

NAME

aio_return — retrieve return status of asynchronous I/O operation (REALTIME)

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <aio.h> ssize_t aio_return(struct aiocb *iocb);

DESCRIPTION

The aio_return() system call returns the final status of the asynchronous I/O request asso‐ ciated with the structure pointed to by iocb. The aio_return() system call should only be called once, to obtain the final status of an asynchronous I/O operation once it has completed (aio_error(2) returns something other than EINPROGRESS).

RETURN VALUES

If the asynchronous I/O request has completed, the status is returned as described in read(2), write(2), or fsync(2). Otherwise, aio_return() returns -1 and sets errno to indi‐ cate the error condition.

ERRORS

The aio_return() system call will fail if: [EINVAL] The iocb argument does not reference a completed asynchronous I/O request.

SEE ALSO

aio_cancel(2), aio_error(2), aio_suspend(2), aio_waitcomplete(2), aio_write(2), fsync(2), read(2), write(2), aio(4)

STANDARDS

The aio_return() system call is expected to conform to the IEEE Std 1003.1 (“POSIX.1”) stan‐ dard.

HISTORY

The aio_return() system call first appeared in FreeBSD 3.0.

AUTHORS

This manual page was written by Wes Peters <@softweyr.com>.
BSD March 21, 2016 BSD
This manual Reference Other manuals
aio_return(2freebsd) referred by aio(4freebsd) | aio_cancel(2freebsd) | aio_error(2freebsd) | aio_fsync(2freebsd) | aio_mlock(2freebsd) | aio_read(2freebsd) | aio_suspend(2freebsd) | aio_waitcomplete(2freebsd) | aio_write(2freebsd) | kevent(2freebsd) | kqueue(2) | kqueue(2freebsd)
refer to aio(4freebsd) | aio_cancel(2freebsd) | aio_error(2freebsd) | aio_suspend(2freebsd) | aio_waitcomplete(2freebsd) | aio_write(2freebsd) | fsync(2) | read(2) | write(2)
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