LIBRARY
Lb libcSYNOPSIS
In aio.h Ft int Fn aio_suspend const struct aiocb *const iocbs[] int niocb const struct timespec *timeoutDESCRIPTION
The Fn aio_suspend system call suspends the calling process until at least one of the specified asynchronous I/O requests have completed, a signal is delivered, or the Fa timeout has passed.The Fa iocbs argument is an array of Fa niocb pointers to asynchronous I/O requests. Array members containing null pointers will be silently ignored.
If Fa timeout is not a null pointer, it specifies a maximum interval to suspend. If Fa timeout is a null pointer, the suspend blocks indefinitely. To effect a poll, the Fa timeout should point to a zero-value timespec structure.
RETURN VALUES
If one or more of the specified asynchronous I/O requests have completed, Fn aio_suspend returns 0. Otherwise it returns -1 and sets errno to indicate the error, as enumerated below.ERRORS
The Fn aio_suspend system call will fail if:- Bq Er EAGAIN
- the Fa timeout expired before any I/O requests completed.
- Bq Er EINVAL
- The Fa iocbs argument contains more than AIO_LISTIO_MAX asynchronous I/O requests, or at least one of the requests is not valid.
- Bq Er EINTR
- the suspend was interrupted by a signal.