fdatasync Synchronizes data (but not meta-data) to the file &reftitle.description; boolfdatasync resourcestream This function synchronizes stream contents to storage media, just like fsync does, but it does not synchronize file meta-data. Note that this function is only effectively different in POSIX systems. In Windows, this function is aliased to fsync. &reftitle.parameters; stream &fs.validfp.all; &reftitle.returnvalues; &return.success; &reftitle.examples; ]]> &reftitle.seealso; fflush fsync