SIMPLE SOLUTIONS

AIO_RETURN - reference manual online

Get return status of asynchronous I/O operation.

Chapter
2015-03-02
AIO_RETURN(3)                       Linux Programmer's Manual                       AIO_RETURN(3)

NAME aio_return - get return status of asynchronous I/O operation
SYNOPSIS #include <aio.h> ssize_t aio_return(struct aiocb *aiocbp); Link with -lrt.
DESCRIPTION The aio_return() function returns the final return status for the asynchronous I/O request with control block pointed to by aiocbp. (See aio(7) for a description of the aiocb structure.) This function should be called only once for any given request, after aio_error(3) returns something other than EINPROGRESS.
RETURN VALUE If the asynchronous I/O operation has completed, this function returns the value that would have been returned in case of a synchronous read(2), write(2), fsync(2) or fdata‐ sync(2), call. On error, -1 is returned, and errno is set appropriately. If the asynchronous I/O operation has not yet completed, the return value and effect of aio_return() are undefined.
ERRORS EINVAL aiocbp does not point at a control block for an asynchronous I/O request of which the return status has not been retrieved yet. ENOSYS aio_return() is not implemented.
VERSIONS The aio_return() function is available since glibc 2.1.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────┼───────────────┼─────────┤ │aio_return() │ Thread safety │ MT-Safe │ └─────────────┴───────────────┴─────────┘
CONFORMING TO POSIX.1-2001, POSIX.1-2008.
EXAMPLE See aio(7).
SEE ALSO aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3), aio_suspend(3), aio_write(3), lio_listio(3), aio(7)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
2015-03-02 AIO_RETURN(3)
This manual Reference Other manuals
aio_return(3) referred by aio(7) | aio_cancel(3) | aio_error(3) | aio_fsync(3) | aio_read(3) | aio_suspend(3) | aio_write(3) | lio_listio(3)
refer to aio(7) | aio_cancel(3) | aio_error(3) | aio_fsync(3) | aio_read(3) | aio_suspend(3) | aio_write(3) | attributes(7) | fsync(2) | lio_listio(3) | read(2) | sync(2) | write(2)