eio_sync_file_range(PECL eio >= 0.0.1dev) eio_sync_file_range — Sync a file segment with disk Описание
   resource eio_sync_file_range
    ( int $fd
   , int $offset
   , int $nbytes
   , int $flags
   [, int $pri = EIO_PRI_DEFAULT
   [, callback $callback = NULL
   [, mixed $data = NULL
  ]]] ) 
  eio_sync_file_range() permits fine control when synchronizing the open file referred to by the file descriptor fd with disk. Список параметров
 Возвращаемые значенияeio_sync_file_range() returns request resource on success or FALSE on error.  | 
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