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aio_return - retrieve return status of asynchronous I/O operation (REAL‐
aio_return - retrieve return status of asynchronous I/O operation (REAL‐ TIME)
Standard C Library (libc, -lc)
#include <aio.h> int aio_return(struct aiocb *iocb);
The aio_return() function returns the final status of the asynchronous I/O request associated with the structure pointed to by iocb. aio_return() should only be called once, to obtain the final status of an asynchronous I/O operation once aio_error(2) returns something other than EINPROGRESS. If the asynchronous I/O request has completed, the status is returned as described in read(2), write(2), or fsync(2). On failure, aio_return() returns -1 and sets errno to indicate the error condition. aio_cancel(2), aio_error(2), aio_read(2), aio_suspend(2), aio_write(2), fsync(2), read(2), write(2)
The aio_return() function will fail if: [EINVAL] iocb does not reference an outstanding asynchronous I/O request.
aio_return() is expected to conform to the IEEE Std 1003.2 (“POSIX.2”) standard.
The aio_return function first appeared in FreeBSD 3.0.
This manual page was written by Wes Peters 〈email@example.com〉.