Php/docs/function.eio-fstat
eio_fstat
(PECL eio >= 0.0.1dev)
eio_fstat — Get file status
说明
eio_fstat() returns file status information in
result
argument of callback
参数
fd
Stream, Socket resource, or numeric file descriptor.
pri
请求的优先级:
EIO_PRI_DEFAULT
,EIO_PRI_MIN
,EIO_PRI_MAX
或null
。如果是null
,pri
将设为EIO_PRI_DEFAULT
。callback
callback
函数在请求完成时被调用。其应匹配一下原型:void callback(mixed $data, int $result[, resource $req]);
data
传递给请求的用户数据。
result
针对请求的结果的值。通常是相应的系统调用返回的值。
req
可选的请求资源,可被 eio_get_last_error() 之类的函数使用。
data
Arbitrary variable passed to
callback
.
范例
Example #1 eio_lstat() example
<?php// Create temporary file$tmp_filename = dirname(__FILE__) ."/eio-file.tmp";touch($tmp_filename);/* Is called when eio_fstat() done */function my_res_cb($data, $result) { // Should output array with stat info var_dump($result); if ($data['fd']) { // Close temporary file eio_close($data['fd']); eio_event_loop(); } // Remove temporary file @unlink($data['file']);}/* Is called when eio_open() done */function my_open_cb($data, $result) { // Prepare data for callback $d = array( 'fd' => $result, 'file'=> $data ); // Request stat info eio_fstat($result, EIO_PRI_DEFAULT, "my_res_cb", $d); // Process request(s) eio_event_loop();}// Open temporary fileeio_open($tmp_filename, EIO_O_RDONLY, NULL, EIO_PRI_DEFAULT, "my_open_cb", $tmp_filename);eio_event_loop();?>
以上例程的输出类似于:
array(12) { ["st_dev"]=> int(2050) ["st_ino"]=> int(2489159) ["st_mode"]=> int(33188) ["st_nlink"]=> int(1) ["st_uid"]=> int(1000) ["st_gid"]=> int(100) ["st_rdev"]=> int(0) ["st_blksize"]=> int(4096) ["st_blocks"]=> int(0) ["st_atime"]=> int(1318239506) ["st_mtime"]=> int(1318239506) ["st_ctime"]=> int(1318239506) }