eio_sync_file_range

eio_sync_file_range

Sync a file segment with disk

resource **eio_sync_file_range** mixed $fd int $offset int $nbytes int $flags int $pri callable $callback mixed $data

permits fine control when synchronizing the open file referred to by the file

descriptor with disk. eio_sync_file_range``fd

fdFile descriptor

offsetThe starting byte of the file range to be synchronized

nbytes Specifies the length of the range to be synchronized, in bytes. If is zero, then all bytes from through to the end of file are synchronized. nbytes``offset

flags A bit-mask. Can include any of the following values: , , . These flags have the same meaning as their counterparts(see man page). EIO_SYNC_FILE_RANGE_WAIT_BEFORE``EIO_SYNC_FILE_RANGE_WRITE``EIO_SYNC_FILE_RANGE_WAIT_AFTER*SYNC_FILE_RANGE_**SYNC_FILE_RANGE(2)

pri``callback``data Arbitrary variable passed to . callback

returns request resource on success,return.falseforfailure.

eio_sync_file_range