Enum GuestFlush 

pub enum GuestFlush {
    Auto,
    Required,
    Skip,
}

Guest filesystem writeback requested before capture or resident pause.

This policy controls root and captured block-filesystem writeback, including owned disks. It never disables host-backed directory synchronization, host I/O draining, or snapshot durability. Filesystem writeback does not flush application-owned buffers or commit application transactions.

Variants

Auto

Require writeback for live disk-only capture; no extra writeback for full capture, branching, or pause. Stopped disk capture does not establish a guest flush.

Required

Require acknowledged writeback before proceeding. A paused source must already hold a matching flush boundary; a stopped source cannot satisfy this request.

Skip

Skip optional writeback, retaining all mandatory storage barriers.

Implementations

impl GuestFlush

pub fn requires_writeback(self, disk_only: bool) -> bool

Whether this policy requires optional writeback for a live source.

Callers must separately enforce mandatory storage barriers and distinguish stopped capture from live disk capture. This predicate is not evidence that flushing occurred.

Trait Implementations

impl Clone for GuestFlush

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for GuestFlush

impl Debug for GuestFlush

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for GuestFlush

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for GuestFlush

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for GuestFlush

impl FromStr for GuestFlush

type Err = &'static str

The associated error which can be returned from parsing.

fn from_str(value: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for GuestFlush

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for GuestFlush

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for GuestFlush