Struct sp_state_machine::Ext
source · pub struct Ext<'a, H, B>where
H: Hasher,
B: 'a + Backend<H>,{
pub id: u16,
/* private fields */
}
Expand description
Wraps a read-only backend, call executor, and current overlayed changes.
Fields§
§id: u16
Pseudo-unique id used for tracing.
Implementations§
source§impl<'a, H, B> Ext<'a, H, B>where
H: Hasher,
B: Backend<H>,
impl<'a, H, B> Ext<'a, H, B>where H: Hasher, B: Backend<H>,
sourcepub fn new(
overlay: &'a mut OverlayedChanges<H>,
backend: &'a B,
extensions: Option<&'a mut Extensions>
) -> Self
pub fn new( overlay: &'a mut OverlayedChanges<H>, backend: &'a B, extensions: Option<&'a mut Extensions> ) -> Self
Create a new Ext
from overlayed changes and read-only backend
Trait Implementations§
source§impl<'a, H, B> ExtensionStore for Ext<'a, H, B>where
H: Hasher,
B: 'a + Backend<H>,
impl<'a, H, B> ExtensionStore for Ext<'a, H, B>where H: Hasher, B: 'a + Backend<H>,
source§fn extension_by_type_id(&mut self, type_id: TypeId) -> Option<&mut dyn Any>
fn extension_by_type_id(&mut self, type_id: TypeId) -> Option<&mut dyn Any>
Tries to find a registered extension by the given
type_id
and returns it as a &mut dyn Any
. Read moresource§impl<'a, H, B> Externalities for Ext<'a, H, B>where
H: Hasher,
H::Out: Ord + 'static + Codec,
B: Backend<H>,
impl<'a, H, B> Externalities for Ext<'a, H, B>where H: Hasher, H::Out: Ord + 'static + Codec, B: Backend<H>,
source§fn storage_renew_transaction_index(&mut self, index: u32, hash: &[u8])
fn storage_renew_transaction_index(&mut self, index: u32, hash: &[u8])
Renew existing piece of data storage.
source§fn set_offchain_storage(&mut self, key: &[u8], value: Option<&[u8]>)
fn set_offchain_storage(&mut self, key: &[u8], value: Option<&[u8]>)
Write a key value pair to the offchain storage database.
source§fn child_storage(
&self,
child_info: &ChildInfo,
key: &[u8]
) -> Option<StorageValue>
fn child_storage( &self, child_info: &ChildInfo, key: &[u8] ) -> Option<StorageValue>
Read child runtime storage. Read more
source§fn child_storage_hash(
&self,
child_info: &ChildInfo,
key: &[u8]
) -> Option<Vec<u8>>
fn child_storage_hash( &self, child_info: &ChildInfo, key: &[u8] ) -> Option<Vec<u8>>
Get child storage value hash. Read more
source§fn exists_storage(&self, key: &[u8]) -> bool
fn exists_storage(&self, key: &[u8]) -> bool
Whether a storage entry exists.
source§fn exists_child_storage(&self, child_info: &ChildInfo, key: &[u8]) -> bool
fn exists_child_storage(&self, child_info: &ChildInfo, key: &[u8]) -> bool
Whether a child storage entry exists.
source§fn next_storage_key(&self, key: &[u8]) -> Option<StorageKey>
fn next_storage_key(&self, key: &[u8]) -> Option<StorageKey>
Returns the key immediately following the given key, if it exists.
source§fn next_child_storage_key(
&self,
child_info: &ChildInfo,
key: &[u8]
) -> Option<StorageKey>
fn next_child_storage_key( &self, child_info: &ChildInfo, key: &[u8] ) -> Option<StorageKey>
Returns the key immediately following the given key, if it exists, in child storage.
source§fn place_storage(&mut self, key: StorageKey, value: Option<StorageValue>)
fn place_storage(&mut self, key: StorageKey, value: Option<StorageValue>)
Set or clear a storage entry (
key
) of current contract being called (effective
immediately).source§fn place_child_storage(
&mut self,
child_info: &ChildInfo,
key: StorageKey,
value: Option<StorageValue>
)
fn place_child_storage( &mut self, child_info: &ChildInfo, key: StorageKey, value: Option<StorageValue> )
Set or clear a child storage entry.
source§fn kill_child_storage(
&mut self,
child_info: &ChildInfo,
maybe_limit: Option<u32>,
maybe_cursor: Option<&[u8]>
) -> MultiRemovalResults
fn kill_child_storage( &mut self, child_info: &ChildInfo, maybe_limit: Option<u32>, maybe_cursor: Option<&[u8]> ) -> MultiRemovalResults
Clear an entire child storage. Read more
source§fn clear_prefix(
&mut self,
prefix: &[u8],
maybe_limit: Option<u32>,
maybe_cursor: Option<&[u8]>
) -> MultiRemovalResults
fn clear_prefix( &mut self, prefix: &[u8], maybe_limit: Option<u32>, maybe_cursor: Option<&[u8]> ) -> MultiRemovalResults
Clear storage entries which keys are start with the given prefix. Read more
source§fn clear_child_prefix(
&mut self,
child_info: &ChildInfo,
prefix: &[u8],
maybe_limit: Option<u32>,
maybe_cursor: Option<&[u8]>
) -> MultiRemovalResults
fn clear_child_prefix( &mut self, child_info: &ChildInfo, prefix: &[u8], maybe_limit: Option<u32>, maybe_cursor: Option<&[u8]> ) -> MultiRemovalResults
Clear child storage entries which keys are start with the given prefix. Read more
source§fn storage_root(&mut self, state_version: StateVersion) -> Vec<u8> ⓘ
fn storage_root(&mut self, state_version: StateVersion) -> Vec<u8> ⓘ
Get the trie root of the current storage map. Read more
source§fn child_storage_root(
&mut self,
child_info: &ChildInfo,
state_version: StateVersion
) -> Vec<u8> ⓘ
fn child_storage_root( &mut self, child_info: &ChildInfo, state_version: StateVersion ) -> Vec<u8> ⓘ
Get the trie root of a child storage map. Read more
source§fn storage_index_transaction(&mut self, index: u32, hash: &[u8], size: u32)
fn storage_index_transaction(&mut self, index: u32, hash: &[u8], size: u32)
Index specified transaction slice and store it.
source§fn storage_start_transaction(&mut self)
fn storage_start_transaction(&mut self)
Start a new nested transaction. Read more
source§fn storage_rollback_transaction(&mut self) -> Result<(), ()>
fn storage_rollback_transaction(&mut self) -> Result<(), ()>
Rollback the last transaction started by
storage_start_transaction
. Read moresource§fn storage_commit_transaction(&mut self) -> Result<(), ()>
fn storage_commit_transaction(&mut self) -> Result<(), ()>
Commit the last transaction started by
storage_start_transaction
. Read moresource§fn wipe(&mut self)
fn wipe(&mut self)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn commit(&mut self)
fn commit(&mut self)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn read_write_count(&self) -> (u32, u32, u32, u32)
fn read_write_count(&self) -> (u32, u32, u32, u32)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn reset_read_write_count(&mut self)
fn reset_read_write_count(&mut self)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn get_whitelist(&self) -> Vec<TrackedStorageKey>
fn get_whitelist(&self) -> Vec<TrackedStorageKey>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn set_whitelist(&mut self, new: Vec<TrackedStorageKey>)
fn set_whitelist(&mut self, new: Vec<TrackedStorageKey>)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn proof_size(&self) -> Option<u32>
fn proof_size(&self) -> Option<u32>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn get_read_and_written_keys(&self) -> Vec<(Vec<u8>, u32, u32, bool)>
fn get_read_and_written_keys(&self) -> Vec<(Vec<u8>, u32, u32, bool)>
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Benchmarking related functionality and shouldn’t be used anywhere else!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Read more
source§fn set_storage(&mut self, key: Vec<u8, Global>, value: Vec<u8, Global>)
fn set_storage(&mut self, key: Vec<u8, Global>, value: Vec<u8, Global>)
Set storage entry
key
of current contract being called (effective immediately).source§fn set_child_storage(
&mut self,
child_info: &ChildInfo,
key: Vec<u8, Global>,
value: Vec<u8, Global>
)
fn set_child_storage( &mut self, child_info: &ChildInfo, key: Vec<u8, Global>, value: Vec<u8, Global> )
Set child storage entry
key
of current contract being called (effective immediately).source§fn clear_storage(&mut self, key: &[u8])
fn clear_storage(&mut self, key: &[u8])
Clear a storage entry (
key
) of current contract being called (effective immediately).source§fn clear_child_storage(&mut self, child_info: &ChildInfo, key: &[u8])
fn clear_child_storage(&mut self, child_info: &ChildInfo, key: &[u8])
Clear a child storage entry (
key
) of current contract being called (effective
immediately).Auto Trait Implementations§
impl<'a, H, B> !RefUnwindSafe for Ext<'a, H, B>
impl<'a, H, B> Send for Ext<'a, H, B>where B: Sync,
impl<'a, H, B> !Sync for Ext<'a, H, B>
impl<'a, H, B> Unpin for Ext<'a, H, B>
impl<'a, H, B> !UnwindSafe for Ext<'a, H, B>
Blanket Implementations§
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
The counterpart to
unchecked_from
.