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update block snapshot to include a running sortition burn total and include a parent block back pointer

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This commit is contained in:
Jude Nelson
2019-03-09 18:50:27 -05:00
parent 6f63b3d09a
commit 2e471a937a
1 changed files with 10 additions and 3 deletions
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13
src/chainstate/burn/mod.rs
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@@ -42,8 +42,8 @@ use sha2::Digest;
use rusqlite::Connection;
use rusqlite::Transaction;
use self::db::burndb::BurnDB;
use self::db::Error as db_error;
use chainstate::burn::db::burndb::BurnDB;
use chainstate::Error as db_error;
use core::SYSTEM_FORK_SET_VERSION;
@@ -54,16 +54,19 @@ pub struct ConsensusHash([u8; 20]);
impl_array_newtype!(ConsensusHash, u8, 20);
impl_array_hexstring_fmt!(ConsensusHash);
impl_byte_array_newtype!(ConsensusHash, u8, 20);
pub const CONSENSUS_HASH_ENCODED_SIZE : u32 = 20;
pub struct BlockHeaderHash([u8; 32]);
impl_array_newtype!(BlockHeaderHash, u8, 32);
impl_array_hexstring_fmt!(BlockHeaderHash);
impl_byte_array_newtype!(BlockHeaderHash, u8, 32);
pub const BLOCK_HEADER_HASH_ENCODED_SIZE : u32 = 32;
pub struct VRFSeed([u8; 32]);
impl_array_newtype!(VRFSeed, u8, 32);
impl_array_hexstring_fmt!(VRFSeed);
impl_byte_array_newtype!(VRFSeed, u8, 32);
pub const VRF_SEED_ENCODED_SIZE : u32 = 32;
impl VRFSeed {
/// First-ever VRF seed from the genesis block. It's all 0's
@@ -89,9 +92,11 @@ impl_byte_array_newtype!(SortitionHash, u8, 32);
pub struct BlockSnapshot {
pub block_height: u64,
pub burn_header_hash: BurnchainHeaderHash,
pub parent_burn_header_hash: BurnchainHeaderHash,
pub consensus_hash: ConsensusHash,
pub ops_hash: OpsHash,
pub total_burn: u64, // how many burn tokens have been destroyed since genesis
pub sortition_burn: u64, // how many burn tokens have been destroyed since the last sortition
pub burn_quota: u64, // how many burn tokens must be destroyed in this block for a sortition to occur
pub sortition: bool, // whether or not a sortition happened in this block (will be false if either the burn quota isn't met, or no block commits occured)
pub sortition_hash: SortitionHash, // rolling hash of the burn chain's block headers -- this gets mixed with the sortition VRF seed
@@ -276,7 +281,7 @@ mod tests {
use super::SortitionHash;
use super::Txid;
use chainstate::burn::db::Error as db_error;
use chainstate::Error as db_error;
use chainstate::burn::db::burndb::BurnDB;
use burnchains::BurnchainHeaderHash;
@@ -302,9 +307,11 @@ mod tests {
let snapshot_row = BlockSnapshot {
block_height: i,
burn_header_hash: BurnchainHeaderHash::from_bytes(&[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,i as u8]).unwrap(),
parent_burn_header_hash: BurnchainHeaderHash::from_bytes(&[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,(if i == 0 { 0xff } else { i-1 }) as u8]).unwrap(),
consensus_hash: ConsensusHash::from_bytes(&[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,i as u8]).unwrap(),
ops_hash: OpsHash::from_bytes(&[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,i as u8]).unwrap(),
total_burn: i,
sortition_burn: i,
burn_quota: 0,
sortition: true,
sortition_hash: SortitionHash::initial(),