_POSIX_SYNCHRONIZED_IO

100

Impl

Cov

The functions below complete synchronously; synchronization beyond what the underlying file system already guarantees may be a no-op †. Asynchronous variants are provided by _POSIX_ASYNCHRONOUS_IO (see aio_fsync()).

Enable this option with CONFIG_POSIX_SYNCHRONIZED_IO.

_POSIX_SYNCHRONIZED_IO
API	Supported
`fdatasync()`	yes
`fsync()`	yes
`msync()`	yes

_POSIX_SYNCHRONIZED_IO