Struct sc_transaction_pool::Pool [−][src]
pub struct Pool<B: ChainApi> { /* fields omitted */ }
Expand description
Extrinsics pool that performs validation.
Implementations
Create a new transaction pool.
Imports a bunch of unverified extrinsics to the pool
Resubmit the given extrinsics to the pool.
This does not check if a transaction is banned, before we verify it again.
Imports one unverified extrinsic to the pool
Import a single extrinsic and starts to watch its progress in the pool.
Resubmit some transaction that were validated elsewhere.
Prunes known ready transactions.
Used to clear the pool from transactions that were part of recently imported block.
The main difference from the prune
is that we do not revalidate any transactions
and ignore unknown passed hashes.
Prunes ready transactions.
Used to clear the pool from transactions that were part of recently imported block.
To perform pruning we need the tags that each extrinsic provides and to avoid calling
into runtime too often we first lookup all extrinsics that are in the pool and get
their provided tags from there. Otherwise we query the runtime at the parent
block.
Prunes ready transactions that provide given list of tags.
Given tags are assumed to be always provided now, so all transactions in the Future Queue that require that particular tag (and have other requirements satisfied) are promoted to Ready Queue.
Moreover for each provided tag we remove transactions in the pool that:
- Provide that tag directly
- Are a dependency of pruned transaction.
Returns transactions that have been removed from the pool and must be reverified before reinserting to the pool.
By removing predecessor transactions as well we might actually end up
pruning too much, so all removed transactions are reverified against
the runtime (validate_transaction
) to make sure they are invalid.
However we avoid revalidating transactions that are contained within
the second parameter of known_imported_hashes
. These transactions
(if pruned) are not revalidated and become temporarily banned to
prevent importing them in the (near) future.
Returns transaction hash
get a reference to the underlying validated pool.
Trait Implementations
impl<B: ChainApi> MallocSizeOf for Pool<B> where
<<B as ChainApi>::Block as Block>::Extrinsic: MallocSizeOf,
impl<B: ChainApi> MallocSizeOf for Pool<B> where
<<B as ChainApi>::Block as Block>::Extrinsic: MallocSizeOf,
Measure the heap usage of all descendant heap-allocated structures, but
not the space taken up by the value itself.
If T::size_of
is a constant, consider implementing constant_size
as well. Read more
Used to optimize MallocSizeOf
implementation for collections
like Vec
and HashMap
to avoid iterating over them unnecessarily.
The Self: Sized
bound is for object safety. Read more
Auto Trait Implementations
impl<B> !RefUnwindSafe for Pool<B>
impl<B> !UnwindSafe for Pool<B>
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
Causes self
to use its Binary
implementation when Debug
-formatted.
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
Causes self
to use its LowerHex
implementation when
Debug
-formatted. Read more
Causes self
to use its Octal
implementation when Debug
-formatted.
Causes self
to use its Pointer
implementation when
Debug
-formatted. Read more
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
Causes self
to use its UpperHex
implementation when
Debug
-formatted. Read more
Method to launch a heapsize measurement with a fresh state. Read more
Pipes by value. This is generally the method you want to use. Read more
Borrows self
and passes that borrow into the pipe function. Read more
Mutably borrows self
and passes that borrow into the pipe function. Read more
Borrows self
, then passes self.borrow()
into the pipe function. Read more
Mutably borrows self
, then passes self.borrow_mut()
into the pipe
function. Read more
Borrows self
, then passes self.as_ref()
into the pipe function.
Mutably borrows self
, then passes self.as_mut()
into the pipe
function. Read more
Borrows self
, then passes self.deref()
into the pipe function.
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
Pipes a dereference into a function that cannot normally be called in suffix position. Read more
Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more
Immutable access to the Borrow<B>
of a value. Read more
Mutable access to the BorrowMut<B>
of a value. Read more
Immutable access to the AsRef<R>
view of a value. Read more
Mutable access to the AsMut<R>
view of a value. Read more
Immutable access to the Deref::Target
of a value. Read more
Mutable access to the Deref::Target
of a value. Read more
Calls .tap()
only in debug builds, and is erased in release builds.
Calls .tap_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_borrow_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref_mut()
only in debug builds, and is erased in release
builds. Read more
Calls .tap_deref()
only in debug builds, and is erased in release
builds. Read more
Provides immutable access to the reference for inspection.
Calls tap_ref
in debug builds, and does nothing in release builds.
Provides mutable access to the reference for modification.
Calls tap_ref_mut
in debug builds, and does nothing in release builds.
Provides immutable access to the borrow for inspection. Read more
Calls tap_borrow
in debug builds, and does nothing in release builds.
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
Provides mutable access to the borrow for modification.
Immutably dereferences self
for inspection.
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Calls tap_deref
in debug builds, and does nothing in release builds.
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Mutably dereferences self
for modification.
The counterpart to unchecked_from
.
Consume self to return an equivalent value of T
.
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more