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AIO_SUSPEND(3) DragonFly Library Functions Manual AIO_SUSPEND(3)
aio_suspend -- suspend until asynchronous I/O operations or timeout
POSIX Real-time Library (librt, -lrt)
aio_suspend(const struct aiocb * const iocbs, int niocb,
const struct timespec * timeout);
The aio_suspend() function suspends the calling process until at least
one of the specified asynchronous I/O requests have completed, a signal
is delivered, or the timeout has passed.
iocbs is an array of niocb pointers to asynchronous I/O requests. Array
members containing NULL will be silently ignored.
If timeout is non-NULL, it specifies a maximum interval to suspend. If
timeout is a null pointer, the suspend blocks indefinitely. To effect a
poll, the timeout should point to a zero-value timespec structure.
If one or more of the specified asynchronous I/O requests have completed,
aio_suspend() returns 0. Otherwise it returns -1 and sets errno to
indicate the error, as enumerated below.
The aio_suspend() function will fail if:
[EAGAIN] the timeout expired before any I/O requests completed.
[EINVAL] iocbs contains more than AIO_LISTIO_MAX asynchronous
I/O requests, or at least one of the requests is not
[EINTR] the suspend was interrupted by a signal.
aio_cancel(3), aio_error(3), aio_read(3), aio_write(3)
aio_suspend() is expected to conform to the IEEE Std 1003.2 (``POSIX.2'')
The aio_suspend function first appeared in FreeBSD 3.0.
This manual page was written by Wes Peters <email@example.com>.
DragonFly 5.5 June 2, 1999 DragonFly 5.5