Struct forest_filecoin::shim::state_tree::StateTreeV4
source · pub struct StateTreeV4<S> {
hamt: HamtImpl<S, ActorState>,
version: StateTreeVersion,
info: Option<Cid<64>>,
actor_cache: RefCell<HistoryMap<u64, ActorCacheEntry>>,
resolve_cache: RefCell<HistoryMap<Address, u64>>,
layers: Vec<StateSnapLayer>,
}
Expand description
State tree implementation using hamt. This structure is not threadsafe and should only be used in sync contexts.
Fields§
§hamt: HamtImpl<S, ActorState>
§version: StateTreeVersion
§info: Option<Cid<64>>
§actor_cache: RefCell<HistoryMap<u64, ActorCacheEntry>>
§resolve_cache: RefCell<HistoryMap<Address, u64>>
§layers: Vec<StateSnapLayer>
Implementations§
source§impl<S> StateTree<S>where
S: Blockstore,
impl<S> StateTree<S>where
S: Blockstore,
pub fn new( store: S, version: StateTreeVersion, ) -> Result<StateTree<S>, ExecutionError>
sourcepub fn new_from_root(
store: S,
c: &Cid<64>,
) -> Result<StateTree<S>, ExecutionError>
pub fn new_from_root( store: S, c: &Cid<64>, ) -> Result<StateTree<S>, ExecutionError>
Constructor for a hamt state tree given an IPLD store
sourcepub fn get_actor(&self, id: u64) -> Result<Option<ActorState>, ExecutionError>
pub fn get_actor(&self, id: u64) -> Result<Option<ActorState>, ExecutionError>
Get actor state from an actor ID.
sourcepub fn set_actor(&mut self, id: u64, actor: ActorState)
pub fn set_actor(&mut self, id: u64, actor: ActorState)
Set actor state with an actor ID.
sourcepub fn lookup_id(&self, addr: &Address) -> Result<Option<u64>, ExecutionError>
pub fn lookup_id(&self, addr: &Address) -> Result<Option<u64>, ExecutionError>
Get an ID address from any Address
sourcepub fn delete_actor(&mut self, id: u64)
pub fn delete_actor(&mut self, id: u64)
Delete actor identified by the supplied ID.
sourcepub fn mutate_actor<F>(
&mut self,
id: u64,
mutate: F,
) -> Result<(), ExecutionError>
pub fn mutate_actor<F>( &mut self, id: u64, mutate: F, ) -> Result<(), ExecutionError>
Mutate and set actor state identified by the supplied ID. Returns a fatal error if the actor doesn’t exist.
sourcepub fn maybe_mutate_actor_id<F>(
&mut self,
id: u64,
mutate: F,
) -> Result<bool, ExecutionError>
pub fn maybe_mutate_actor_id<F>( &mut self, id: u64, mutate: F, ) -> Result<bool, ExecutionError>
Try to mutate the actor state identified by the supplied ID, returning false if the actor doesn’t exist.
sourcepub fn register_new_address(
&mut self,
addr: &Address,
) -> Result<u64, ExecutionError>
pub fn register_new_address( &mut self, addr: &Address, ) -> Result<u64, ExecutionError>
Register a new address through the init actor.
sourcepub fn begin_transaction(&mut self)
pub fn begin_transaction(&mut self)
Begin a new state transaction. Transactions stack.
sourcepub fn end_transaction(&mut self, revert: bool) -> Result<(), ExecutionError>
pub fn end_transaction(&mut self, revert: bool) -> Result<(), ExecutionError>
End a transaction, reverting if requested.
sourcepub fn in_transaction(&self) -> bool
pub fn in_transaction(&self) -> bool
Returns true if we’re inside of a transaction.
sourcepub fn flush(&mut self) -> Result<Cid<64>, ExecutionError>
pub fn flush(&mut self) -> Result<Cid<64>, ExecutionError>
Flush state tree and return Cid root.
sourcepub fn into_store(self) -> S
pub fn into_store(self) -> S
Consumes this StateTree and returns the Blockstore it owns via the HAMT.
pub fn for_each<F>(&self, f: F) -> Result<(), Error>
Auto Trait Implementations§
impl<S> !Freeze for StateTree<S>
impl<S> !RefUnwindSafe for StateTree<S>
impl<S> Send for StateTree<S>where
S: Send,
impl<S> !Sync for StateTree<S>
impl<S> Unpin for StateTree<S>where
S: Unpin,
impl<S> UnwindSafe for StateTree<S>where
S: UnwindSafe,
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