pub struct Txn { /* private fields */ }
Expand description
A transaction context.
Implementations
sourceimpl Txn
impl Txn
sourcepub async fn claim(self, actor: &Actor, cluster_path: TCPathBuf) -> TCResult<Self>
pub async fn claim(self, actor: &Actor, cluster_path: TCPathBuf) -> TCResult<Self>
Claim ownership of this transaction.
sourcepub async fn grant(
&self,
actor: &Actor,
cluster_path: TCPathBuf,
scopes: Vec<Scope>
) -> TCResult<Self>
pub async fn grant(
&self,
actor: &Actor,
cluster_path: TCPathBuf,
scopes: Vec<Scope>
) -> TCResult<Self>
sourcepub fn has_leader(&self, cluster_path: &[PathSegment]) -> bool
pub fn has_leader(&self, cluster_path: &[PathSegment]) -> bool
Check if this transaction has a leader for the given cluster.
sourcepub fn is_leader(&self, cluster_path: &[PathSegment]) -> bool
pub fn is_leader(&self, cluster_path: &[PathSegment]) -> bool
Check if this host is leading the transaction for the specified cluster.
sourcepub fn is_owner(&self, cluster_path: &[PathSegment]) -> bool
pub fn is_owner(&self, cluster_path: &[PathSegment]) -> bool
Check if the cluster at the specified path on this host is the owner of the transaction.
sourcepub async fn lead(self, actor: &Actor, cluster_path: TCPathBuf) -> TCResult<Self>
pub async fn lead(self, actor: &Actor, cluster_path: TCPathBuf) -> TCResult<Self>
Claim leadership of this transaction for the given cluster.
sourcepub fn leader(&self, cluster_path: &[PathSegment]) -> Option<&Link>
pub fn leader(&self, cluster_path: &[PathSegment]) -> Option<&Link>
Return the leader of this transaction for the given cluster, if there is one.
sourcepub fn request(&self) -> &Request
pub fn request(&self) -> &Request
Return the Request
which initiated this transaction on this host.
sourcepub async fn get(&self, link: Link, key: Value) -> TCResult<State>
pub async fn get(&self, link: Link, key: Value) -> TCResult<State>
Resolve a GET op within this transaction context.
sourcepub async fn put(&self, link: Link, key: Value, value: State) -> TCResult<()>
pub async fn put(&self, link: Link, key: Value, value: State) -> TCResult<()>
Resolve a PUT op within this transaction context.
Trait Implementations
sourceimpl Transaction<Dir> for Txn
impl Transaction<Dir> for Txn
sourcefn into_context(self) -> Dir
fn into_context(self) -> Dir
Consume this Txn
and return its fs::Dir
.
Auto Trait Implementations
impl !RefUnwindSafe for Txn
impl Send for Txn
impl Sync for Txn
impl Unpin for Txn
impl !UnwindSafe for Txn
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<F> Match for F
impl<F> Match for F
sourcefn matches<T>(&self) -> bool where
T: TryCastFrom<Self>,
fn matches<T>(&self) -> bool where
T: TryCastFrom<Self>,
Returns true
if self
can be cast into the target type T
.
sourceimpl<F, T> TryCastFrom<F> for T where
T: CastFrom<F>,
impl<F, T> TryCastFrom<F> for T where
T: CastFrom<F>,
sourcefn can_cast_from(&F) -> bool
fn can_cast_from(&F) -> bool
Test if value
can be cast into Self
.
sourcefn opt_cast_from(f: F) -> Option<T>
fn opt_cast_from(f: F) -> Option<T>
Returns Some(Self)
if the source value can be cast into Self
, otherwise None
.
sourcefn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,
fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,
Returns Ok(Self)
if the source value can be cast into Self
, otherwise calls on_err
.
sourceimpl<F, T> TryCastInto<T> for F where
T: TryCastFrom<F>,
impl<F, T> TryCastInto<T> for F where
T: TryCastFrom<F>,
sourcefn can_cast_into(&self) -> bool
fn can_cast_into(&self) -> bool
Test if self
can be cast into T
.
sourcefn opt_cast_into(self) -> Option<T>
fn opt_cast_into(self) -> Option<T>
Returns Some(T)
if self
can be cast into T
, otherwise None
.
sourcefn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,
fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,
Returns Ok(T)
if self
can be cast into T
, otherwise calls on_err
.
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more