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// Copyright 2023 The CortexTheseus Authors | ||
// This file is part of the CortexTheseus library. | ||
// | ||
// The CortexTheseus 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 CortexTheseus 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 CortexTheseus library. If not, see <http://www.gnu.org/licenses/>. | ||
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package backend | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
"github.com/CortexFoundation/CortexTheseus/log" | ||
"github.com/CortexFoundation/torrentfs/types" | ||
bolt "go.etcd.io/bbolt" | ||
"sort" | ||
"strconv" | ||
"time" | ||
) | ||
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func (fs *ChainDB) Blocks() []*types.Block { | ||
return fs.blocks | ||
} | ||
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func (fs *ChainDB) GetBlockByNumber(blockNum uint64) *types.Block { | ||
var block types.Block | ||
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cb := func(tx *bolt.Tx) error { | ||
buk := tx.Bucket([]byte(BLOCKS_ + fs.version)) | ||
if buk == nil { | ||
return ErrReadDataFromBoltDB | ||
} | ||
k := uint64ToBytes(blockNum) | ||
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v := buk.Get(k) | ||
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if v == nil { | ||
return ErrReadDataFromBoltDB | ||
} | ||
if err := json.Unmarshal(v, &block); err != nil { | ||
return err | ||
} | ||
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return nil | ||
} | ||
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if err := fs.db.View(cb); err != nil { | ||
return nil | ||
} | ||
return &block | ||
} | ||
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// func (fs *ChainDB) addBlock(b *Block, record bool) error { | ||
func (fs *ChainDB) AddBlock(b *types.Block) error { | ||
if fs.metrics { | ||
defer func(start time.Time) { fs.treeUpdates += time.Since(start) }(time.Now()) | ||
} | ||
//i := sort.Search(len(fs.blocks), func(i int) bool { return fs.blocks[i].Number > b.Number }) | ||
//if i == len(fs.blocks) { | ||
//todo | ||
//} else { | ||
// log.Warn("Encounter ancient block (dup)", "cur", b.Number, "index", i, "len", len(fs.blocks), "ckp", fs.CheckPoint) | ||
// return nil | ||
//} | ||
ancient := fs.GetBlockByNumber(b.Number) | ||
if ancient != nil && ancient.Hash == b.Hash { | ||
fs.addLeaf(b, false, true) | ||
return nil | ||
} | ||
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if err := fs.db.Update(func(tx *bolt.Tx) error { | ||
buk, err := tx.CreateBucketIfNotExists([]byte(BLOCKS_ + fs.version)) | ||
if err != nil { | ||
return err | ||
} | ||
v, err := json.Marshal(b) | ||
if err != nil { | ||
return err | ||
} | ||
k := uint64ToBytes(b.Number) | ||
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return buk.Put(k, v) | ||
}); err == nil { | ||
fs.blocks = append(fs.blocks, b) | ||
fs.txs.Add(uint64(len(b.Txs))) | ||
mes := false | ||
if b.Number < fs.checkPoint.Load() { | ||
mes = true | ||
} | ||
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fs.addLeaf(b, mes, false) | ||
} else { | ||
return err | ||
} | ||
if b.Number > fs.lastListenBlockNumber.Load() { | ||
fs.lastListenBlockNumber.Store(b.Number) | ||
if err := fs.Flush(); err != nil { | ||
return err | ||
} | ||
} | ||
return nil | ||
} | ||
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func (fs *ChainDB) initBlocks() error { | ||
return fs.db.Update(func(tx *bolt.Tx) error { | ||
if buk, err := tx.CreateBucketIfNotExists([]byte(BLOCKS_ + fs.version)); err != nil { | ||
return err | ||
} else { | ||
c := buk.Cursor() | ||
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for k, v := c.First(); k != nil; k, v = c.Next() { | ||
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var x types.Block | ||
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if err := json.Unmarshal(v, &x); err != nil { | ||
return err | ||
} | ||
fs.blocks = append(fs.blocks, &x) | ||
fs.txs.Add(uint64(len(x.Txs))) | ||
} | ||
sort.Slice(fs.blocks, func(i, j int) bool { | ||
return fs.blocks[i].Number < fs.blocks[j].Number | ||
}) | ||
log.Info("Fs blocks initializing ... ...", "blocks", len(fs.blocks), "txs", fs.txs.Load()) | ||
return nil | ||
} | ||
}) | ||
} | ||
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func (fs *ChainDB) InitBlockNumber() error { | ||
return fs.db.Update(func(tx *bolt.Tx) error { | ||
buk, err := tx.CreateBucketIfNotExists([]byte(CUR_BLOCK_NUM_ + fs.version)) | ||
if err != nil { | ||
return err | ||
} | ||
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v := buk.Get([]byte("key")) | ||
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if v == nil { | ||
log.Warn("Start from block number (default:0)") | ||
return nil | ||
} | ||
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number, err := strconv.ParseUint(string(v), 16, 64) | ||
if err != nil { | ||
return err | ||
} | ||
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fs.lastListenBlockNumber.Store(number) | ||
log.Info("Start from block number (default:0)", "num", number) | ||
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return nil | ||
}) | ||
} | ||
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func (fs *ChainDB) SkipPrint() { | ||
var ( | ||
str string | ||
from uint64 | ||
) | ||
for _, b := range fs.blocks { | ||
// if b.Number < 395964 { | ||
// continue | ||
// } | ||
//Skip{From: 160264, To: 395088}, | ||
if b.Number-from > 1000 { | ||
str = str + "{From:" + strconv.FormatUint(from, 10) + ",To:" + strconv.FormatUint(b.Number, 10) + "}," | ||
} | ||
from = b.Number | ||
//fmt.Println(b.Number, ":true,") | ||
} | ||
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if fs.lastListenBlockNumber.Load()-from > 1000 { | ||
str = str + "{From:" + strconv.FormatUint(from, 10) + ",To:" + strconv.FormatUint(fs.lastListenBlockNumber.Load(), 10) + "}," | ||
} | ||
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//log.Info("Skip chart", "skips", str) | ||
fmt.Println(str) | ||
} | ||
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func (fs *ChainDB) CheckPoint() uint64 { | ||
return fs.checkPoint.Load() | ||
} | ||
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func (fs *ChainDB) LastListenBlockNumber() uint64 { | ||
return fs.lastListenBlockNumber.Load() | ||
} | ||
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func (fs *ChainDB) Anchor(n uint64) { | ||
fs.lastListenBlockNumber.Store(n) | ||
} |
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