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Take the 'Sum' out of 'Sumtree' (#702)

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* beginning to remove sum

* continuing to remove sumtree sums

* finished removing sums from pmmr core

* renamed sumtree files, and completed changes+test updates in core and store

* updating grin/chain to include removelogs

* integration of flatfile structure, changes to chain/sumtree to start using them

* tests on chain, core and store passing

* cleaning up api and tests

* formatting

* flatfiles stored as part of PMMR backend instead

* all compiling and tests running

* documentation

* added remove + pruning to flatfiles

* remove unneeded enum

* adding sumtree root struct
This commit is contained in:
Yeastplume
2018-02-22 13:45:13 +00:00
committed by GitHub
parent c2ca6ad03f
commit 05d1c6c817
17 changed files with 893 additions and 879 deletions
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api/src/types.rs
+14 -23
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@@ -16,7 +16,6 @@ use std::sync::Arc;
use core::{core, ser};
use core::core::hash::Hashed;
use core::core::SumCommit;
use core::core::SwitchCommitHash;
use chain;
use p2p;
@@ -89,8 +88,6 @@ impl Status {
pub struct SumTrees {
/// UTXO Root Hash
pub utxo_root_hash: String,
// UTXO Root Sum
pub utxo_root_sum: String,
// Rangeproof root hash
pub range_proof_root_hash: String,
// Kernel set root hash
@@ -101,10 +98,9 @@ impl SumTrees {
pub fn from_head(head: Arc<chain::Chain>) -> SumTrees {
let roots = head.get_sumtree_roots();
SumTrees {
utxo_root_hash: roots.0.hash.to_hex(),
utxo_root_sum: roots.0.sum.to_hex(),
range_proof_root_hash: roots.1.hash.to_hex(),
kernel_root_hash: roots.2.hash.to_hex(),
utxo_root_hash: roots.0.to_hex(),
range_proof_root_hash: roots.1.to_hex(),
kernel_root_hash: roots.2.to_hex(),
}
}
}
@@ -112,45 +108,40 @@ impl SumTrees {
/// Wrapper around a list of sumtree nodes, so it can be
/// presented properly via json
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct SumTreeNode {
pub struct PmmrTreeNode {
// The hash
pub hash: String,
// SumCommit (features|commitment), optional (only for utxos)
pub sum: Option<SumCommit>,
}
impl SumTreeNode {
pub fn get_last_n_utxo(chain: Arc<chain::Chain>, distance: u64) -> Vec<SumTreeNode> {
impl PmmrTreeNode {
pub fn get_last_n_utxo(chain: Arc<chain::Chain>, distance: u64) -> Vec<PmmrTreeNode> {
let mut return_vec = Vec::new();
let last_n = chain.get_last_n_utxo(distance);
for x in last_n {
return_vec.push(SumTreeNode {
hash: util::to_hex(x.hash.to_vec()),
sum: Some(x.sum),
return_vec.push(PmmrTreeNode {
hash: util::to_hex(x.0.to_vec()),
});
}
return_vec
}
pub fn get_last_n_rangeproof(head: Arc<chain::Chain>, distance: u64) -> Vec<SumTreeNode> {
pub fn get_last_n_rangeproof(head: Arc<chain::Chain>, distance: u64) -> Vec<PmmrTreeNode> {
let mut return_vec = Vec::new();
let last_n = head.get_last_n_rangeproof(distance);
for elem in last_n {
return_vec.push(SumTreeNode {
hash: util::to_hex(elem.hash.to_vec()),
sum: None,
return_vec.push(PmmrTreeNode {
hash: util::to_hex(elem.0.to_vec()),
});
}
return_vec
}
pub fn get_last_n_kernel(head: Arc<chain::Chain>, distance: u64) -> Vec<SumTreeNode> {
pub fn get_last_n_kernel(head: Arc<chain::Chain>, distance: u64) -> Vec<PmmrTreeNode> {
let mut return_vec = Vec::new();
let last_n = head.get_last_n_kernel(distance);
for elem in last_n {
return_vec.push(SumTreeNode {
hash: util::to_hex(elem.hash.to_vec()),
sum: None,
return_vec.push(PmmrTreeNode {
hash: util::to_hex(elem.0.to_vec()),
});
}
return_vec