| AIO_RETURN(3) | Library Functions Manual | AIO_RETURN(3) | 
aio_return —
#include <aio.h>
ssize_t
  
  aio_return(struct
    aiocb *aiocbp);
aio_return() system call returns the final status of
  the asynchronous I/O request associated with the structure pointed to by
  aiocbp.
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(3) returns
    something other than EINPROGRESS).
aio_return() returns -1 and sets
  errno to indicate the error condition.
aio_return() system call will fail if:
EINVAL]aio_return() system call is expected to conform to
  the IEEE Std 1003.1-2001 (“POSIX.1”)
  standard.
aio_return() system call first appeared in
  NetBSD 5.0.
| August 13, 2011 | NetBSD 9.4 |