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aio_return(3c)
aio_return(3C) Standard C Library Functions aio_return(3C)
NAME
aio_return - retrieve return status of an asynchronous I/O operation
SYNOPSIS
#include <aio.h>
ssize_t aio_return(struct aiocb *aiocbp);
DESCRIPTION
The aio_return() function returns the return status associated with the
aiocb structure referenced by the aiocbp argument. The return status
for an asynchronous I/O operation is the value that would be returned
by the corresponding read(2), write(2), or fsync(3C) function call. If
the error status for the operation is equal to EINPROGRESS, then the
return status for the operation is undefined. The aio_return() function
may be called exactly once to retrieve the return status of a given
asynchronous operation; thereafter, if the same aiocb structure is used
in a call to aio_return() or aio_error(3C), an error may be returned.
When the aiocb structure referred to by aiocbp is used to submit an‐
other asynchronous operation, then aio_return() may be successfully
used to retrieve the return status of that operation.
RETURN VALUES
If the asynchronous I/O operation has completed, then the return sta‐
tus, as described for read(2), write(2), and fsync(3C), is returned. If
the asynchronous I/O operation has not yet completed, the results of
aio_return() are undefined.
ERRORS
The aio_return() function will fail if:
EINVAL The aiocbp argument does not refer to an asynchronous opera‐
tion whose return status has not yet been retrieved.
ENOSYS The aio_return() function is not supported by the system.
USAGE
The aio_return() function has a transitional interface for 64-bit file
offsets. See lf64(7).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelAsync-Signal-
Safe _ StandardSee standards(7).
SEE ALSO
close(2), exec(2), exit(2), fork(2), lseek(2), read(2), write(2),
aio_cancel(3C), aio_fsync(3C), aio_read(3C), fsync(3C), lio_listio(3C),
aio.h(3HEAD), signal.h(3HEAD), attributes(7), lf64(7), standards(7)
Oracle Solaris 11.4 31 Jan 2012 aio_return(3C)