Alternative to Fsync for windows c++

Question

Is there an alternative to fsync for windows? (C++ builder)

Fsync required to include unistd.h and it's only for unix systems

Thanks!

Answer 1

From the man-page:

fflush() forces a write of all user-space buffered data for the given output or update stream via the stream's underlying write function.

The mentioned write function tells the operating system what the contents of the file should be. At this point all changes will be held in filesystem caches before actually being committed to disk.

The POSIX function fsync() tells the operating system to sync all changes from its caches to disk. As others have said you can use FlushFileBuffers on the Windows platform.

Answer 2

_commit looks about right, it takes a file descriptor just like fsync does:

The _commit function forces the operating system to write the file associated with fd to disk. This call ensures that the specified file is flushed immediately, not at the operating system's discretion.