Struct frame_support::pallet_prelude::ValidTransaction [−][src]
pub struct ValidTransaction {
pub priority: u64,
pub requires: Vec<Vec<u8, Global>, Global>,
pub provides: Vec<Vec<u8, Global>, Global>,
pub longevity: u64,
pub propagate: bool,
}Expand description
Information concerning a valid transaction.
Fields
priority: u64Priority of the transaction.
Priority determines the ordering of two transactions that have all their dependencies (required tags) satisfied.
requires: Vec<Vec<u8, Global>, Global>Transaction dependencies
A non-empty list signifies that some other transactions which provide given tags are required to be included before that one.
provides: Vec<Vec<u8, Global>, Global>Provided tags
A list of tags this transaction provides. Successfully importing the transaction will enable other transactions that depend on (require) those tags to be included as well. Provided and required tags allow Substrate to build a dependency graph of transactions and import them in the right (linear) order.
longevity: u64Transaction longevity
Longevity describes minimum number of blocks the validity is correct. After this period transaction should be removed from the pool or revalidated.
propagate: boolA flag indicating if the transaction should be propagated to other peers.
By setting false here the transaction will still be considered for
including in blocks that are authored on the current node, but will
never be sent to other peers.
Implementations
Initiate ValidTransaction builder object with a particular prefix for tags.
To avoid conflicts between different parts in runtime it’s recommended to build requires
and provides tags with a unique prefix.
Combine two instances into one, as a best effort. This will take the superset of each of the
provides and requires tags, it will sum the priorities, take the minimum longevity and
the logic And of the propagate flags.
Trait Implementations
Returns the “default value” for a type. Read more
Performs the conversion.
This method tests for self and other values to be equal, and is used
by ==. Read more
This method tests for !=.
Auto Trait Implementations
impl RefUnwindSafe for ValidTransaction
impl Send for ValidTransaction
impl Sync for ValidTransaction
impl Unpin for ValidTransaction
impl UnwindSafe for ValidTransaction
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
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
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Compare self to key and return true if they are equal.
Causes self to use its Binary implementation when Debug-formatted.
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Causes self to use its Pointer implementation when
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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
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fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
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T: 'a,
R: 'a,
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Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
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Self: Deref,
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Self: Deref,
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Pipes a dereference into a function that cannot normally be called in suffix position. Read more
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Calls .tap() only in debug builds, and is erased in release builds.
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Calls .tap_borrow_mut() only in debug builds, and is erased in release
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Calls .tap_ref() only in debug builds, and is erased in release
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Calls .tap_deref() only in debug builds, and is erased in release
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Calls tap_ref_mut in debug builds, and does nothing in release builds.
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Calls tap_borrow in debug builds, and does nothing in release builds.
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Calls tap_deref in debug builds, and does nothing in release builds.
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