(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.
delay
Delay in seconds
pri
リクエストの優先順位。EIO_PRI_DEFAULT、EIO_PRI_MIN、EIO_PRI_MAX あるいは NULL を指定します。
NULL を渡した場合、pri は内部的に
EIO_PRI_DEFAULT となります。
callback
This 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.