eio_fdatasync
eio_fdatasync
(PECL eio >= 0.0.1dev)
eio_fdatasync — Synchronize a file's in-core state with storage device.
Description
resource eio_fdatasync ( mixed $fd [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]] )
eio_fdatasync() synchronizes a file's in-core state with storage device.
Parameters
fd
Stream, Socket resource, or numeric file descriptor, e.g. returned by eio_open().
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_fdatasync() returns request resource on success or FALSE on error.
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eio_fstat →
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