eio_ftruncate

(PECL eio >= 0.0.1dev)
Truncate a file
resource eio_ftruncate ( mixed $fd [, int $offset = 0 [, int $pri = EIO_PRI_DEFAULT [, callable $callback = NULL [, mixed $data = NULL ]]]] )

eio_ftruncate() causes a regular file referenced by fd file descriptor to be truncated to precisely length bytes.

Parameters:
fd

Stream, Socket resource, or numeric file descriptor.

offset

Offset from beginning of the file

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

Arbitrary variable passed to callback.

Returns:

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

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2016-02-24 16:04:39
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