LIO_LISTIO(3) | Library Functions Manual | LIO_LISTIO(3) |
int
lio_listio(int mode, struct aiocb * const list[], int nent, struct sigevent *sig);
The aio_lio_opcode field of each aiocb specifies the operation to be performed. The following operations are supported:
If the mode argument is LIO_WAIT, lio_listio() does not return until all the requested operations have been completed. If mode is LIO_NOWAIT, the requests are processed asynchronously, and the signal specified by sig is sent when all operations have completed. If sig is NULL, the calling process is not notified of I/O completion.
The order in which the requests are carried out is not specified, and there is no guarantee that they will be executed sequentially.
If mode is LIO_NOWAIT, the lio_listio() function returns 0 if the operations are successfully queued, otherwise -1.
In addition, the lio_listio() function may fail for any of the reasons listed for aio_read(3) and aio_write(3).
If lio_listio() succeeds, or fails with an error code of EAGAIN, EINTR, or EIO, some of the requests may have been initiated. The caller should check the error status of each aiocb structure individually by calling aio_error(3).
August 12, 2011 | NetBSD 6.1 |