File::Sync 0.09

File::Sync is a Perl access to fsync() and sync() function calls.

SYNOPSIS

use File::Sync qw(fsync sync);
fsync(*FILEHANDLE) or die "fsync: $!";
sync();

use File::Sync qw(fsync);
use IO::File;
$fh = IO::File->new("> /tmp/foo")
or die "new IO::File: $!";
...
fsync($fh) or die "fsync: $!";

The fsync() function takes a Perl file handle as its only argument, and passes its fileno() to the C function fsync(). It returns undef on failure, or true on success.
The fsync_fd() function is used internally by fsync(); it takes a file descriptor as its only argument.

The sync() function is identical to the C function sync().
This module does not export any methods by default, but fsync() is made available as a method of the FileHandle and IO::Handle classes.