cerc-io/lighthouse
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Mark reduced_tree fork choice as incomplete

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This commit is contained in:
Paul Hauner 2019-06-21 09:18:02 +10:00
parent d0037f49d8
commit 0b2ad4d0a1
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GPG Key ID: 303E4494BB28068C
3 changed files with 22 additions and 12 deletions
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6
beacon_node/beacon_chain/src/beacon_chain.rs
View File

@ -770,7 +770,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
} else {
state.latest_block_header.canonical_root()
};
dbg!(previous_block_root);
let mut graffiti: [u8; 32] = [0; 32];
graffiti.copy_from_slice(GRAFFITI.as_bytes());
@ -814,8 +813,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
self.metrics.block_production_successes.inc();
timer.observe_duration();
dbg!(block.canonical_root());
Ok((block, state))
}
@ -849,9 +846,6 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
// If we switched to a new chain (instead of building atop the present chain).
if self.head().beacon_block_root != beacon_block.previous_block_root {
dbg!("switched head");
dbg!(self.head().beacon_block.slot);
dbg!(beacon_block.slot);
self.metrics.fork_choice_reorg_count.inc();
};

1
beacon_node/client/src/lib.rs
View File

@ -186,7 +186,6 @@ impl<T: BeaconChainTypes> Drop for Client<T> {
fn drop(&mut self) {
// Save the beacon chain to it's store before dropping.
let _result = self.beacon_chain.persist();
dbg!("Saved BeaconChain to store");
}
}

27
eth2/lmd_ghost/src/reduced_tree.rs
View File

@ -1,3 +1,8 @@
/// An implementation of "reduced tree" LMD GHOST fork choice.
///
/// This algorithm was concieved at IC3 Cornell, 2019.
///
/// This implementation is incomplete and has known bugs.
use super::{LmdGhost, Result as SuperResult};
use parking_lot::RwLock;
use std::collections::HashMap;
@ -210,8 +215,6 @@ where
}
fn find_head_from<'a>(&'a self, start_node: &'a Node) -> Result<&'a Node> {
dbg!(&self.nodes);
if start_node.does_not_have_children() {
Ok(start_node)
} else {
@ -404,10 +407,24 @@ where
if !prev_in_tree.children.is_empty() {
for &child_hash in &prev_in_tree.children {
let ancestor_hash = self.find_least_common_ancestor(node.block_hash, child_hash)?;
if self
.iter_ancestors(child_hash)?
.any(|(ancestor, _slot)| ancestor == node.block_hash)
{
let child = self.get_mut_node(child_hash)?;
// TODO: handle the case where the new block is a child of an existing node and a
// parent of an existing node.
child.parent_hash = Some(node.block_hash);
node.children.push(child_hash);
prev_in_tree.replace_child(child_hash, node.block_hash)?;
added_new_ancestor = true;
break;
}
}
for &child_hash in &prev_in_tree.children {
let ancestor_hash = self.find_least_common_ancestor(node.block_hash, child_hash)?;
if ancestor_hash != prev_in_tree.block_hash {
let child = self.get_mut_node(child_hash)?;