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    eio_nop

    (PECL eio >= 0.0.1dev)

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

    Description

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

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

    Parameters

    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(mixed $data, int $result[, resource $req]);
    data

    is custom data passed to the request.

    result

    request-specific result value; basically, the value returned by corresponding system call.

    req

    is optional request resource which can be used with functions like eio_get_last_error()

    data

    Arbitrary variable passed to callback.

    Return Values

    eio_nop() returns request resource on success, or false on failure.

    See Also

    • eio_busy() - Artificially increase load. Could be useful in tests, benchmarking
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