eio_nop

(PECL eio >= 0.0.1dev)

eio_nop — Does nothing, except go through the whole request cycle.

Opis

resource eio_nop ([ int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] )

eio_nop() does nothing, except go through the whole request cycle. Could be useful in debugging.

Parametry

pri

The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.

callback

callback function is called when the request is done. It should match the following prototype:


void callback($data, $result);

$data is custom data passed to the request. $result contains request-specific result value; basically, the value returned by corresponding system call.

data

Arbitrary variable passed to callback.

Zwracane wartości

eio_nop() returns request resource on success or FALSE on error.

Zobacz też:

eio_busy

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