Struct fvm::state_tree::StateTree
source · pub struct StateTree<S> { /* private fields */ }
Expand description
State tree implementation using hamt. This structure is not threadsafe and should only be used in sync contexts.
Implementations§
source§impl<S> StateTree<S>where
S: Blockstore,
impl<S> StateTree<S>where
S: Blockstore,
pub fn new(store: S, version: StateTreeVersion) -> Result<Self>
sourcepub fn new_from_root(store: S, c: &Cid) -> Result<Self>
pub fn new_from_root(store: S, c: &Cid) -> Result<Self>
Constructor for a hamt state tree given an IPLD store
sourcepub fn get_actor(&self, id: ActorID) -> Result<Option<ActorState>>
pub fn get_actor(&self, id: ActorID) -> Result<Option<ActorState>>
Get actor state from an actor ID.
sourcepub fn set_actor(&mut self, id: ActorID, actor: ActorState)
pub fn set_actor(&mut self, id: ActorID, actor: ActorState)
Set actor state with an actor ID.
sourcepub fn lookup_id(&self, addr: &Address) -> Result<Option<ActorID>>
pub fn lookup_id(&self, addr: &Address) -> Result<Option<ActorID>>
Get an ID address from any Address
sourcepub fn delete_actor(&mut self, id: ActorID)
pub fn delete_actor(&mut self, id: ActorID)
Delete actor identified by the supplied ID.
sourcepub fn mutate_actor<F>(&mut self, id: ActorID, mutate: F) -> Result<()>
pub fn mutate_actor<F>(&mut self, id: ActorID, mutate: F) -> Result<()>
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: ActorID,
mutate: F,
) -> Result<bool>
pub fn maybe_mutate_actor_id<F>( &mut self, id: ActorID, mutate: F, ) -> Result<bool>
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<ActorID>
pub fn register_new_address(&mut self, addr: &Address) -> Result<ActorID>
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<()>
pub fn end_transaction(&mut self, revert: bool) -> Result<()>
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 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<()>
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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