present: aio_cancel () aio_error () aio_fsync () aio_read () aio_return () aio_suspend () aio_write ... deleted. Not in final XPG6. FSC - _POSIX_FSYNC - _SC_FSYNC The function fsyn…asynchronous analog of write (2). aio_fsync (3) Enqueue a sync request ... descriptor. This is the asynchronous analog of fsync (2) and fdatasync (2). aio_errorfstat (2) fstatat (2) Added in POSIX.1-2008 fsync (2) ftruncate (2) futimens (3) Addedclose() connect() creat() fcntl() F_SETLKW fdatasync() fsync() getmsg() getpmsg() lockf() F_LOCK mq_receive