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 asyn- chronous I/O request with control block pointed to by aiocbp.
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, write, or fsync request. Otherwise the return value is undefined. On error, the error value is returned.
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.
CONFORMING TO POSIX.1-2001.
SEE ALSO aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3), aio_suspend(3), aio_write(3)
COLOPHON This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.