This commit is contained in:
MeiK2333 2021-01-11 17:50:57 +08:00
parent 6e6b50a745
commit 5371ff4ed5
3 changed files with 103 additions and 70 deletions

View File

@ -12,6 +12,7 @@ use std::result;
pub enum Error {
IOError(io::Error),
StringToCStringError(NulError),
ParseIntError(std::num::ParseIntError),
}
pub type Result<T> = result::Result<T, Error>;

View File

@ -1,6 +1,6 @@
use crate::cgroup::CGroupSet;
use crate::config::{STDERR_FILENAME, STDIN_FILENAME, STDOUT_FILENAME};
use crate::error::{errno_str, Result};
use crate::error::{errno_str, Error, Result};
use crate::exec_args::ExecArgs;
use crate::seccomp;
use libc;
@ -38,7 +38,7 @@ macro_rules! c_str_ptr {
}
#[derive(Clone)]
struct Process {
pub struct Process {
pub cmd: String,
pub time_limit: i32,
pub memory_limit: i32,
@ -46,14 +46,15 @@ struct Process {
}
#[derive(Clone)]
struct RunnerStatus {
pub struct RunnerStatus {
pub rusage: libc::rusage,
pub exit_code: i32,
pub status: i32,
pub signal: i32,
pub time_used: i64,
pub memory_used: i64,
pub real_time_used: u128,
pub memory_used: i64,
pub cgroup_memory_used: i64,
pub errmsg: String,
}
@ -122,7 +123,6 @@ impl Drop for Runner {
}
}
// TODO: unwrap -> Result<Error>
impl Future for Runner {
type Output = Result<RunnerStatus>;
@ -150,14 +150,10 @@ impl Future for Runner {
// 设置 cgroup 限制
// 此处为父进程做的策略,所以没有与子进程的安全策略放一块
runner.cgroup_set.apply(pid).unwrap();
runner
.cgroup_set
.memory
.set(
runner.cgroup_set.memory.set(
"memory.limit_in_bytes",
&format!("{}", runner.process.memory_limit as i64 * 1024),
)
.unwrap();
)?;
let tx = runner.tx.clone();
// 因为 wait 会阻塞等待结果,因此此处使用 thread::spawn 来 wait以防止主流程被阻塞
@ -166,22 +162,25 @@ impl Future for Runner {
// 子流程运行结束后通知主流程
let status_tx = tx.lock().unwrap();
status_tx.send(status).unwrap();
debug!("waker");
waker.wake();
});
return Poll::Pending;
} else {
let status = runner.rx.lock().unwrap().recv().unwrap();
// TODO: 将 CGroup 的结果合并到 status 中
let mem_used = runner
let mut status = runner.rx.lock().unwrap().recv().unwrap();
let mem_used = match runner
.cgroup_set
.memory
.get("memory.max_usage_in_bytes")
.unwrap()
.get("memory.max_usage_in_bytes")?
.trim()
.parse::<i32>()
.unwrap();
debug!("cgroup memory used: {} KiB", mem_used / 1024);
.parse::<i64>()
{
Ok(val) => val,
Err(e) => return Poll::Ready(Err(Error::ParseIntError(e))),
};
status.cgroup_memory_used = mem_used / 1024;
debug!("cpu time used: {} ms", status.time_used);
debug!("real time used: {} ms", status.real_time_used);
debug!("cgroup memory used: {} KiB", status.cgroup_memory_used);
debug!("rusage memory used: {} KiB", status.memory_used);
return Poll::Ready(Ok(status));
}
@ -223,6 +222,7 @@ impl Runner {
RunnerStatus {
errmsg: String::from(""),
memory_used: memory_used,
cgroup_memory_used: -1,
time_used: time_used,
real_time_used: real_time_used,
exit_code: exit_code,
@ -239,7 +239,7 @@ extern "C" fn runit(process: *mut libc::c_void) -> i32 {
let exec_args = ExecArgs::build(&process.cmd).unwrap();
unsafe {
security(&process);
// fd_dup();
fd_dup();
syscall_or_panic!(libc::execve(
exec_args.pathname,
exec_args.argv,
@ -453,6 +453,7 @@ fn judge_system_error(errmsg: String) -> RunnerStatus {
signal: -1,
time_used: -1,
memory_used: -1,
cgroup_memory_used: -1,
real_time_used: 0,
errmsg: errmsg,
}
@ -463,7 +464,7 @@ mod tests {
use super::*;
use tempfile::tempdir_in;
#[tokio::test]
async fn test1() {
async fn test_echo() {
let pwd = tempdir_in("/tmp").unwrap();
println!("{:?}", pwd);
let process = Process::new(
@ -475,4 +476,35 @@ mod tests {
let result = Runner::from(process).unwrap().await.unwrap();
assert_eq!(result.exit_code, 0);
}
#[tokio::test]
async fn test_sleep() {
let pwd = tempdir_in("/tmp").unwrap();
println!("{:?}", pwd);
let process = Process::new(
String::from("/bin/sleep 1"),
2000,
65535,
pwd.path().to_path_buf(),
);
let result = Runner::from(process).unwrap().await.unwrap();
assert!(result.real_time_used > 1000);
assert!(result.real_time_used < 1500);
}
#[tokio::test]
async fn test_output() {
let pwd = tempdir_in("/tmp").unwrap();
println!("{:?}", pwd);
let process = Process::new(
String::from("/bin/echo Hello World!"),
1000,
65535,
pwd.path().to_path_buf(),
);
let runner = Runner::from(process).unwrap();
let _ = runner.await.unwrap();
let out = std::fs::read_to_string(pwd.path().join(STDOUT_FILENAME)).unwrap();
assert_eq!(out, "Hello World!\n");
}
}