Enum nix_compat::nar::reader::ArchiveReaderStatus

enum ArchiveReaderStatus<'a> {
    StackTop {
        poisoned: bool,
        ready: bool,
    },
    StackChild {
        poisoned: &'a mut bool,
        parent_ready: &'a mut bool,
        ready: bool,
    },
}

We use a stack of statuses to:

• Share poisoned state across all objects from the same underlying reader, so we can check they are abandoned when an error occurs
• Make sure only the most recently created object is read from, and is fully exhausted before anything it was created from is used again.

Variants

StackTop

Fields

poisoned: bool

ready: bool

StackChild

Fields

poisoned: &'a mut bool

parent_ready: &'a mut bool

ready: bool

Implementations

impl ArchiveReaderStatus<'_>

fn top() -> Self

fn poison(&mut self)

Poison all the objects sharing the same reader, to be used when an error occurs

fn ready_parent(&mut self)

Mark the parent as ready, allowing it to be used again and preventing this reference to the reader being used again.

fn poisoned(&self) -> bool

fn ready(&self) -> bool