mirror of https://github.com/ethereum/go-ethereum
miner: suspend miner if node is syncing (#27218)
Drop the notions of uncles, and disables activities while syncing - Disable activities (e.g. generate pending state) while node is syncing, - Disable empty block submission (but empty block is still kept for payload building), - Drop uncle notion since (ethash is already deprecated)pull/27392/head
parent
61dcf76230
commit
d4961881d7
@ -1,136 +0,0 @@ |
||||
// Copyright 2016 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package miner |
||||
|
||||
import ( |
||||
"container/ring" |
||||
"sync" |
||||
|
||||
"github.com/ethereum/go-ethereum/common" |
||||
"github.com/ethereum/go-ethereum/core/types" |
||||
"github.com/ethereum/go-ethereum/log" |
||||
) |
||||
|
||||
// chainRetriever is used by the unconfirmed block set to verify whether a previously
|
||||
// mined block is part of the canonical chain or not.
|
||||
type chainRetriever interface { |
||||
// GetHeaderByNumber retrieves the canonical header associated with a block number.
|
||||
GetHeaderByNumber(number uint64) *types.Header |
||||
|
||||
// GetBlockByNumber retrieves the canonical block associated with a block number.
|
||||
GetBlockByNumber(number uint64) *types.Block |
||||
} |
||||
|
||||
// unconfirmedBlock is a small collection of metadata about a locally mined block
|
||||
// that is placed into a unconfirmed set for canonical chain inclusion tracking.
|
||||
type unconfirmedBlock struct { |
||||
index uint64 |
||||
hash common.Hash |
||||
} |
||||
|
||||
// unconfirmedBlocks implements a data structure to maintain locally mined blocks
|
||||
// have not yet reached enough maturity to guarantee chain inclusion. It is
|
||||
// used by the miner to provide logs to the user when a previously mined block
|
||||
// has a high enough guarantee to not be reorged out of the canonical chain.
|
||||
type unconfirmedBlocks struct { |
||||
chain chainRetriever // Blockchain to verify canonical status through
|
||||
depth uint // Depth after which to discard previous blocks
|
||||
blocks *ring.Ring // Block infos to allow canonical chain cross checks
|
||||
lock sync.Mutex // Protects the fields from concurrent access
|
||||
} |
||||
|
||||
// newUnconfirmedBlocks returns new data structure to track currently unconfirmed blocks.
|
||||
func newUnconfirmedBlocks(chain chainRetriever, depth uint) *unconfirmedBlocks { |
||||
return &unconfirmedBlocks{ |
||||
chain: chain, |
||||
depth: depth, |
||||
} |
||||
} |
||||
|
||||
// Insert adds a new block to the set of unconfirmed ones.
|
||||
func (set *unconfirmedBlocks) Insert(index uint64, hash common.Hash) { |
||||
// If a new block was mined locally, shift out any old enough blocks
|
||||
set.Shift(index) |
||||
|
||||
// Create the new item as its own ring
|
||||
item := ring.New(1) |
||||
item.Value = &unconfirmedBlock{ |
||||
index: index, |
||||
hash: hash, |
||||
} |
||||
// Set as the initial ring or append to the end
|
||||
set.lock.Lock() |
||||
defer set.lock.Unlock() |
||||
|
||||
if set.blocks == nil { |
||||
set.blocks = item |
||||
} else { |
||||
set.blocks.Move(-1).Link(item) |
||||
} |
||||
// Display a log for the user to notify of a new mined block unconfirmed
|
||||
log.Info("🔨 mined potential block", "number", index, "hash", hash) |
||||
} |
||||
|
||||
// Shift drops all unconfirmed blocks from the set which exceed the unconfirmed sets depth
|
||||
// allowance, checking them against the canonical chain for inclusion or staleness
|
||||
// report.
|
||||
func (set *unconfirmedBlocks) Shift(height uint64) { |
||||
set.lock.Lock() |
||||
defer set.lock.Unlock() |
||||
|
||||
for set.blocks != nil { |
||||
// Retrieve the next unconfirmed block and abort if too fresh
|
||||
next := set.blocks.Value.(*unconfirmedBlock) |
||||
if next.index+uint64(set.depth) > height { |
||||
break |
||||
} |
||||
// Block seems to exceed depth allowance, check for canonical status
|
||||
header := set.chain.GetHeaderByNumber(next.index) |
||||
switch { |
||||
case header == nil: |
||||
log.Warn("Failed to retrieve header of mined block", "number", next.index, "hash", next.hash) |
||||
case header.Hash() == next.hash: |
||||
log.Info("🔗 block reached canonical chain", "number", next.index, "hash", next.hash) |
||||
default: |
||||
// Block is not canonical, check whether we have an uncle or a lost block
|
||||
included := false |
||||
for number := next.index; !included && number < next.index+uint64(set.depth) && number <= height; number++ { |
||||
if block := set.chain.GetBlockByNumber(number); block != nil { |
||||
for _, uncle := range block.Uncles() { |
||||
if uncle.Hash() == next.hash { |
||||
included = true |
||||
break |
||||
} |
||||
} |
||||
} |
||||
} |
||||
if included { |
||||
log.Info("⑂ block became an uncle", "number", next.index, "hash", next.hash) |
||||
} else { |
||||
log.Info("😱 block lost", "number", next.index, "hash", next.hash) |
||||
} |
||||
} |
||||
// Drop the block out of the ring
|
||||
if set.blocks.Value == set.blocks.Next().Value { |
||||
set.blocks = nil |
||||
} else { |
||||
set.blocks = set.blocks.Move(-1) |
||||
set.blocks.Unlink(1) |
||||
set.blocks = set.blocks.Move(1) |
||||
} |
||||
} |
||||
} |
@ -1,87 +0,0 @@ |
||||
// Copyright 2016 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package miner |
||||
|
||||
import ( |
||||
"testing" |
||||
|
||||
"github.com/ethereum/go-ethereum/core/types" |
||||
) |
||||
|
||||
// noopChainRetriever is an implementation of headerRetriever that always
|
||||
// returns nil for any requested headers.
|
||||
type noopChainRetriever struct{} |
||||
|
||||
func (r *noopChainRetriever) GetHeaderByNumber(number uint64) *types.Header { |
||||
return nil |
||||
} |
||||
func (r *noopChainRetriever) GetBlockByNumber(number uint64) *types.Block { |
||||
return nil |
||||
} |
||||
|
||||
// Tests that inserting blocks into the unconfirmed set accumulates them until
|
||||
// the desired depth is reached, after which they begin to be dropped.
|
||||
func TestUnconfirmedInsertBounds(t *testing.T) { |
||||
limit := uint(10) |
||||
|
||||
pool := newUnconfirmedBlocks(new(noopChainRetriever), limit) |
||||
for depth := uint64(0); depth < 2*uint64(limit); depth++ { |
||||
// Insert multiple blocks for the same level just to stress it
|
||||
for i := 0; i < int(depth); i++ { |
||||
pool.Insert(depth, [32]byte{byte(depth), byte(i)}) |
||||
} |
||||
// Validate that no blocks below the depth allowance are left in
|
||||
pool.blocks.Do(func(block interface{}) { |
||||
if block := block.(*unconfirmedBlock); block.index+uint64(limit) <= depth { |
||||
t.Errorf("depth %d: block %x not dropped", depth, block.hash) |
||||
} |
||||
}) |
||||
} |
||||
} |
||||
|
||||
// Tests that shifting blocks out of the unconfirmed set works both for normal
|
||||
// cases as well as for corner cases such as empty sets, empty shifts or full
|
||||
// shifts.
|
||||
func TestUnconfirmedShifts(t *testing.T) { |
||||
// Create a pool with a few blocks on various depths
|
||||
limit, start := uint(10), uint64(25) |
||||
|
||||
pool := newUnconfirmedBlocks(new(noopChainRetriever), limit) |
||||
for depth := start; depth < start+uint64(limit); depth++ { |
||||
pool.Insert(depth, [32]byte{byte(depth)}) |
||||
} |
||||
// Try to shift below the limit and ensure no blocks are dropped
|
||||
pool.Shift(start + uint64(limit) - 1) |
||||
if n := pool.blocks.Len(); n != int(limit) { |
||||
t.Errorf("unconfirmed count mismatch: have %d, want %d", n, limit) |
||||
} |
||||
// Try to shift half the blocks out and verify remainder
|
||||
pool.Shift(start + uint64(limit) - 1 + uint64(limit/2)) |
||||
if n := pool.blocks.Len(); n != int(limit)/2 { |
||||
t.Errorf("unconfirmed count mismatch: have %d, want %d", n, limit/2) |
||||
} |
||||
// Try to shift all the remaining blocks out and verify emptiness
|
||||
pool.Shift(start + 2*uint64(limit)) |
||||
if n := pool.blocks.Len(); n != 0 { |
||||
t.Errorf("unconfirmed count mismatch: have %d, want %d", n, 0) |
||||
} |
||||
// Try to shift out from the empty set and make sure it doesn't break
|
||||
pool.Shift(start + 3*uint64(limit)) |
||||
if n := pool.blocks.Len(); n != 0 { |
||||
t.Errorf("unconfirmed count mismatch: have %d, want %d", n, 0) |
||||
} |
||||
} |
Loading…
Reference in new issue