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Date: Fri, 14 Jun 2024 11:36:49 +0200 (CEST)
From: Christian Ebner <c.ebner@proxmox.com>
To: Gabriel Goller <g.goller@proxmox.com>, pbs-devel@lists.proxmox.com
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Subject: Re: [pbs-devel] [PATCH proxmox-backup] client: mount: flush output
before exiting
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> On 14.06.2024 11:23 CEST Gabriel Goller <g.goller@proxmox.com> wrote:
>
>
> When using the `proxmox-backup-client mount` command, the parent sometimes
> exits before we can print any error message. Most notably this happens
> when no PBS_REPOSITORY is passed, as this is the first option checked.
> Flush the stdout and stderr so that we can guarantee the output.
>
> Reported-by: Friedrich Weber <f.weber@proxmox.com>
> Suggested-by: Christian Ebner <c.ebner@proxmox.com>
> Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
> ---
> proxmox-backup-client/src/mount.rs | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/proxmox-backup-client/src/mount.rs b/proxmox-backup-client/src/mount.rs
> index b69e7e80..001cbd62 100644
> --- a/proxmox-backup-client/src/mount.rs
> +++ b/proxmox-backup-client/src/mount.rs
> @@ -1,6 +1,7 @@
> use std::collections::HashMap;
> use std::ffi::OsStr;
> use std::hash::BuildHasher;
> +use std::io::{self, Write};
> use std::os::unix::io::{AsRawFd, OwnedFd};
> use std::path::{Path, PathBuf};
> use std::sync::Arc;
> @@ -189,7 +190,11 @@ fn mount(
> Ok(ForkResult::Child) => {
> drop(pr);
> nix::unistd::setsid().unwrap();
> - proxmox_async::runtime::main(mount_do(param, Some(pw)))
> + let result =
> + proxmox_async::runtime::main(mount_do(param, Some(pw.try_clone().unwrap())));
Why do you clone here?
> + io::stdout().flush()?;
> + io::stderr().flush()?;
> + result
> }
> Err(_) => bail!("failed to daemonize process"),
> }
> --
> 2.43.0
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