use super::File;
use alloc::{sync::Arc, vec::Vec};
use alloc::string::{String, ToString};
use crate::mm::{
    UserBuffer,
};
use super::TaskStatus;

// TODO 类型？
#[repr(C)]
pub struct ProcInfo{
    // name:
    pub pid:usize,
    pub name: String,
    //pub ppid:usize,
    // heap_sz:
    // mem:
    // cpu_time:
    pub status:TaskStatus,
}


pub struct ProcInfoList{
    pub inner:Vec<ProcInfo>,
}

/*impl ProcInfoList{
    pub fn init(&self)->Self{
        
    }
}*/

impl File for ProcInfoList{

    fn readable(&self) -> bool {
        true
    }

    fn writable(&self) -> bool {
        false
    }

    /// 这个函数做的事是把信息放到buffer里面
    fn read(&self, buf: UserBuffer) -> usize {
        //buf = self.inner;
        19260817
    }

    fn write(&self, buf: UserBuffer) -> usize {
        println!("写你妈");
        19260817
    }


}