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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | STANDARDS | HISTORY | EXAMPLES | SEE ALSO | COLOPHON |
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aio_return(3) Library Functions Manual aio_return(3)
aio_return - get return status of asynchronous I/O operation
Real-time library (librt, -lrt)
#include <aio.h>
ssize_t aio_return(struct aiocb *aiocbp);
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.
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 fdatasync(2), call.
On error, -1 is returned, and errno is set to indicate the error.
If the asynchronous I/O operation has not yet completed, the
return value and effect of aio_return() are undefined.
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.
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ aio_return() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
POSIX.1-2008.
glibc 2.1. POSIX.1-2001.
See aio(7).
aio_cancel(3), aio_error(3), aio_fsync(3), aio_read(3),
aio_suspend(3), aio_write(3), lio_listio(3), aio(7)
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Linux man-pages 6.9.1 2024-05-02 aio_return(3)
Pages that refer to this page: aio_cancel(3), aiocb(3type), aio_error(3), aio_fsync(3), aio_read(3), aio_suspend(3), aio_write(3), lio_listio(3), aio(7), signal-safety(7)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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