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consensus/state is 2-step asynchronous

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This commit is contained in:
Jae Kwon
2015-06-05 14:15:40 -07:00
parent 1b95c09160
commit 01b5540ffe
16 changed files with 706 additions and 1467 deletions
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16
blockchain/store.go
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@@ -18,9 +18,9 @@ Simple low level store for blocks.
There are three types of information stored:
- BlockMeta: Meta information about each block
- Block part: Parts of each block, aggregated w/ PartSet
- Validation: The Validation part of each block, for gossiping commit votes
- Validation: The Validation part of each block, for gossiping precommit votes
Currently the commit signatures are duplicated in the Block parts as
Currently the precommit signatures are duplicated in the Block parts as
well as the Validation. In the future this may change, perhaps by moving
the Validation data outside the Block.
*/
@@ -101,7 +101,7 @@ func (bs *BlockStore) LoadBlockMeta(height uint) *types.BlockMeta {
return meta
}
// NOTE: the Commit-vote heights are for the block at `height-1`
// NOTE: the Precommit-vote heights are for the block at `height-1`
// Since these are included in the subsequent block, the height
// is off by 1.
func (bs *BlockStore) LoadBlockValidation(height uint) *types.Validation {
@@ -118,7 +118,7 @@ func (bs *BlockStore) LoadBlockValidation(height uint) *types.Validation {
return validation
}
// NOTE: the Commit-vote heights are for the block at `height`
// NOTE: the Precommit-vote heights are for the block at `height`
func (bs *BlockStore) LoadSeenValidation(height uint) *types.Validation {
var n int64
var err error
@@ -134,12 +134,10 @@ func (bs *BlockStore) LoadSeenValidation(height uint) *types.Validation {
}
// blockParts: Must be parts of the block
// seenValidation: The +2/3 commits that were seen which finalized the height.
// seenValidation: The +2/3 precommits that were seen which committed at height.
// If all the nodes restart after committing a block,
// we need this to reload the commits to catch-up nodes to the
// we need this to reload the precommits to catch-up nodes to the
// most recent height. Otherwise they'd stall at H-1.
// Also good to have to debug consensus issues & punish wrong-signers
// whose commits weren't included in the block.
func (bs *BlockStore) SaveBlock(block *types.Block, blockParts *types.PartSet, seenValidation *types.Validation) {
height := block.Height
if height != bs.height+1 {
@@ -163,7 +161,7 @@ func (bs *BlockStore) SaveBlock(block *types.Block, blockParts *types.PartSet, s
blockValidationBytes := binary.BinaryBytes(block.Validation)
bs.db.Set(calcBlockValidationKey(height), blockValidationBytes)
// Save seen validation (seen +2/3 commits)
// Save seen validation (seen +2/3 precommits for block)
seenValidationBytes := binary.BinaryBytes(seenValidation)
bs.db.Set(calcSeenValidationKey(height), seenValidationBytes)