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To: Proxmox Backup Server development discussion
 <pbs-devel@lists.proxmox.com>, Wolfgang Bumiller <w.bumiller@proxmox.com>
References: <20210422140213.30989-1-w.bumiller@proxmox.com>
 <20210422140213.30989-8-w.bumiller@proxmox.com>
From: Dietmar Maurer <dietmar@proxmox.com>
Message-ID: <41e6d9e2-4d4f-b79d-49b4-35696a9aa335@proxmox.com>
Date: Thu, 29 Apr 2021 11:17:06 +0200
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Subject: [pbs-devel] applied: [PATCH v2 backup 07/27] tools: add ControlFlow
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applied.

I guess we want to replace that with std::ops::ControlFlow once that is 
stable?


On 4/22/21 4:01 PM, Wolfgang Bumiller wrote:
> modeled after std::ops::ControlFlow
>
> Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
> ---
>   src/tools.rs | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/src/tools.rs b/src/tools.rs
> index 08af55e5..890db826 100644
> --- a/src/tools.rs
> +++ b/src/tools.rs
> @@ -571,3 +571,14 @@ pub fn create_run_dir() -> Result<(), Error> {
>       let _: bool = proxmox::tools::fs::create_path(PROXMOX_BACKUP_RUN_DIR_M!(), None, None)?;
>       Ok(())
>   }
> +
> +/// Modeled after the nightly `std::ops::ControlFlow`.
> +#[derive(Clone, Copy, Debug, PartialEq)]
> +pub enum ControlFlow<B, C = ()> {
> +    Continue(C),
> +    Break(B),
> +}
> +
> +impl<B> ControlFlow<B> {
> +    pub const CONTINUE: ControlFlow<B, ()> = ControlFlow::Continue(());
> +}