btrfs_cli/balance/
pause.rs

1use super::open_path;
2use crate::{Format, Runnable};
3use anyhow::{Context, Result};
4use btrfs_uapi::balance::{BalanceCtl, balance_ctl};
5use clap::Parser;
6use nix::errno::Errno;
7use std::{os::unix::io::AsFd, path::PathBuf};
8
9/// Pause a running balance operation
10#[derive(Parser, Debug)]
11pub struct BalancePauseCommand {
12    pub path: PathBuf,
13}
14
15impl Runnable for BalancePauseCommand {
16    fn run(&self, _format: Format, _dry_run: bool) -> Result<()> {
17        let file = open_path(&self.path)?;
18
19        match balance_ctl(file.as_fd(), BalanceCtl::Pause) {
20            Ok(()) => Ok(()),
21            Err(Errno::ENOTCONN) => {
22                anyhow::bail!(
23                    "balance pause on '{}' failed: Not running",
24                    self.path.display()
25                )
26            }
27            Err(e) => Err(e).with_context(|| {
28                format!("balance pause on '{}' failed", self.path.display())
29            }),
30        }
31    }
32}
btrfs_cli/balance/pause.rs

btrfs_cli/balance/
pause.rs
