(PECL eio >= 0.0.1dev)
eio_busy — Artificially increase load. Could be useful in tests, benchmarking.
$delay [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] ) eio_busy() artificially increases load taking delay seconds to execute. May be used for debugging, or benchmarking.
delayDelay in seconds
priThe request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.
callbackThis callback is called when all the group requests are done.
data Arbitrary variable passed to callback.
eio_busy() returns request resource on success or FALSE on error.