_POSIX_SYNCHRONIZED_IO

POSIX Synchronized I/O option. More...

Functions
int	msync (void *addr, size_t length, int flags)
	Synchronise a memory mapping with the underlying storage.
int	fdatasync (int fildes)
	Synchronise the data of an open file to storage (without metadata).

Detailed Description

POSIX Synchronized I/O option.

Covers fdatasync().

Function Documentation

fdatasync()

int fdatasync

(

int

fildes

)

Synchronise the data of an open file to storage (without metadata).

See also

https://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html

msync()

int msync	(	void *	addr,
		size_t	length,
		int	flags
	)

Synchronise a memory mapping with the underlying storage.

Parameters

addr	Base address of the region (must be page-aligned).
length	Length of the region in bytes.
flags	MS_SYNC, MS_ASYNC, or MS_INVALIDATE.

Returns

0 on success, or -1 with errno set on failure.

See also

https://pubs.opengroup.org/onlinepubs/9699919799/functions/msync.html