(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
]]] ) : resource
eio_busy() artificially increases load taking
delay
seconds to execute. May be used for debugging,
or benchmarking.
delay
Delay in seconds
pri
��������ȼ���EIO_PRI_DEFAULT
��EIO_PRI_MIN
��EIO_PRI_MAX
�� NULL
�������
NULL
��pri
����Ϊ
EIO_PRI_DEFAULT
��
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.