fs.fdatasyncSync(fd)

• fd <integer>

将与文件关联的所有当前排队的 I/O 操作强制为操作系统的同步 I/O 完成状态。 有关详细信息，请参阅 POSIX fdatasync(2) 文档。 返回 undefined。

• fd <integer>

Forces all currently queued I/O operations associated with the file to the operating system's synchronized I/O completion state. Refer to the POSIX fdatasync(2) documentation for details. Returns undefined.