1 #[cfg(target_os = "dragonos")] 2 use drstd as std; 3 4 pub mod dep_graph; 5 pub mod service_executor; 6 7 use std::process::Child; 8 use std::sync::Arc; 9 10 use crate::{ 11 error::runtime_error::{RuntimeError, RuntimeErrorType}, 12 unit::Unit, 13 }; 14 15 use self::dep_graph::DepGraph; 16 17 //Unit的全局执行器 18 pub struct Executor; 19 20 impl Executor { 21 pub fn exec(unit: &Arc<dyn Unit>) -> Result<(), RuntimeError> { 22 //TODO: 优化此处，解析时也用到了拓扑排序，尝试使用那次拓扑排序的结果 23 let mut graph = DepGraph::construct_graph(unit); 24 25 let sort_ret = graph.topological_sort()?; 26 27 for u in sort_ret { 28 if let Err(e) = u.run() { 29 return Err(e); 30 } 31 } 32 33 return Ok(()); 34 } 35 } 36