EIO_SEEK(3) 1 EIO_SEEK(3)
eio_seek - Repositions the offset of the open file associated with the$fdargument to the argument$offsetaccording to the directive$whence
SYNOPSIS
resource eio_seek (mixed $fd, int $offset, int $whence, [int $pri = EIO_PRI_DEFAULT], [callable $callback = NULL], [mixed $data =
NULL])
DESCRIPTION
eio_seek(3) repositions the offset of the open file associated with stream, Socket resource, or file descriptor specified by $fd to the
argument $offset according to the directive $whence as follows:
o EIO_SEEK_SET - Set position equal to $offset bytes.
o EIO_SEEK_CUR - Set position to current location plus $offset.
o EIO_SEEK_END - Set position to end-of-file plus $offset.
PARAMETERS
o $fd
- Stream, Socket resource, or numeric file descriptor
o $offset
- Starting point from which data is to be read.
o $length
- Number of bytes to be read.
o $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.
o $callback
-$callback function is called when the request is done. It should match the following prototype:
void callback(mixed $data, int $result[, resource $req]);
o $data
-is custom data passed to the request.
o $result
-request-specific result value; basically, the value returned by corresponding system call.
o $req
-is optional request resource which can be used with functions like eio_get_last_error(3)
o $data
- Arbitrary variable passed to $callback.
RETURN VALUES
eio_seek(3) returns request resource on success or FALSE on error.
PHP Documentation Group EIO_SEEK(3)
