//!//! # PP 核心实现
//!//! VM will run faster on FreeBSD,
//! especially in IO-about operations.
//!moddef;pubusedef::*;#[cfg(target_os ="freebsd")]modfreebsd;#[cfg(target_os ="freebsd")]pubusefreebsd::*;#[cfg(target_os ="linux")]modlinux;#[cfg(target_os ="linux")]pubuselinux::*;modtest;#[cfg(not(feature ="testmock"))]#[cfg(feature ="zfs_snapshot")]constCLONE_MARK:&str="clone_";