eio_nop
(PECL eio >= 0.0.1dev)
eio_nop — Does nothing, except go through the whole request cycle.
Description
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.
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 error.
See Also
- eio_busy
← eio_mknod
eio_npending →
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