Struct MutableSnapshot 

pub struct MutableSnapshot { /* private fields */ }

A mutable snapshot that allows isolated state changes.

Changes made in a mutable snapshot are isolated from other snapshots until apply() is called, at which point they become visible atomically. This is a root mutable snapshot (not nested).

Thread Safety

Contains Cell<T> which is not Send/Sync. This is safe because snapshots are stored in thread-local storage and never shared across threads. The Arc is used for cheap cloning within a single thread, not for cross-thread sharing.

Implementations

impl MutableSnapshot

pub fn new_root( read_observer: Option<ReadObserver>, write_observer: Option<WriteObserver>, ) -> Arc<Self>

Create a new root mutable snapshot using the global runtime.

pub fn new( id: SnapshotId, invalid: SnapshotIdSet, read_observer: Option<ReadObserver>, write_observer: Option<WriteObserver>, base_parent_id: SnapshotId, ) -> Arc<Self>

Create a new root mutable snapshot.

pub fn snapshot_id(&self) -> SnapshotId

pub fn invalid(&self) -> SnapshotIdSet

pub fn read_only(&self) -> bool

pub fn root_mutable(self: &Arc<Self>) -> Arc<Self>

pub fn enter<T>(self: &Arc<Self>, f: impl FnOnce() -> T) -> T

pub fn take_nested_snapshot( self: &Arc<Self>, read_observer: Option<ReadObserver>, ) -> Arc<ReadonlySnapshot>

pub fn has_pending_changes(&self) -> bool

pub fn pending_children(&self) -> Vec<SnapshotId>

pub fn has_pending_children(&self) -> bool

pub fn dispose(&self)

pub fn record_read(&self, state: &dyn StateObject)

pub fn record_write(&self, state: Arc<dyn StateObject>)

pub fn notify_objects_initialized(&self)

pub fn close(&self)

pub fn is_disposed(&self) -> bool

pub fn apply(&self) -> SnapshotApplyResult

pub fn take_nested_mutable_snapshot( self: &Arc<Self>, read_observer: Option<ReadObserver>, write_observer: Option<WriteObserver>, ) -> Arc<NestedMutableSnapshot>