Official Go implementation of the Ethereum protocol
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go-ethereum/swarm/storage/localstore/mode_set.go

202 lines
5.4 KiB

// Copyright 2018 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 localstore
import (
"github.com/ethereum/go-ethereum/swarm/chunk"
"github.com/syndtr/goleveldb/leveldb"
)
// ModeSet enumerates different Setter modes.
type ModeSet int
// Setter modes.
const (
// ModeSetAccess: when an update request is received for a chunk or chunk is retrieved for delivery
ModeSetAccess ModeSet = iota
// ModeSetSync: when push sync receipt is received
ModeSetSync
// modeSetRemove: when GC-d
// unexported as no external packages should remove chunks from database
modeSetRemove
)
// Setter sets the state of a particular
// Chunk in database by changing indexes.
type Setter struct {
db *DB
mode ModeSet
}
// NewSetter returns a new Setter on database
// with a specific Mode.
func (db *DB) NewSetter(mode ModeSet) *Setter {
return &Setter{
mode: mode,
db: db,
}
}
// Set updates database indexes for a specific
// chunk represented by the address.
func (s *Setter) Set(addr chunk.Address) (err error) {
return s.db.set(s.mode, addr)
}
// set updates database indexes for a specific
// chunk represented by the address.
// It acquires lockAddr to protect two calls
// of this function for the same address in parallel.
func (db *DB) set(mode ModeSet, addr chunk.Address) (err error) {
// protect parallel updates
swarm/storage/localstore: global batch write lock (#19245) * swarm/storage/localstore: most basic database * swarm/storage/localstore: fix typos and comments * swarm/shed: add uint64 field Dec and DecInBatch methods * swarm/storage/localstore: decrement size counter on ModeRemoval update * swarm/storage/localstore: unexport modeAccess and modeRemoval * swarm/storage/localstore: add WithRetrievalCompositeIndex * swarm/storage/localstore: add TestModeSyncing * swarm/storage/localstore: fix test name * swarm/storage/localstore: add TestModeUpload * swarm/storage/localstore: add TestModeRequest * swarm/storage/localstore: add TestModeSynced * swarm/storage/localstore: add TestModeAccess * swarm/storage/localstore: add TestModeRemoval * swarm/storage/localstore: add mock store option for chunk data * swarm/storage/localstore: add TestDB_pullIndex * swarm/storage/localstore: add TestDB_gcIndex * swarm/storage/localstore: change how batches are written * swarm/storage/localstore: add updateOnAccess function * swarm/storage/localhost: add DB.gcSize * swarm/storage/localstore: update comments * swarm/storage/localstore: add BenchmarkNew * swarm/storage/localstore: add retrieval tests benchmarks * swarm/storage/localstore: accessors redesign * swarm/storage/localstore: add semaphore for updateGC goroutine * swarm/storage/localstore: implement basic garbage collection * swarm/storage/localstore: optimize collectGarbage * swarm/storage/localstore: add more garbage collection tests cases * swarm/shed, swarm/storage/localstore: rename IndexItem to Item * swarm/shed: add Index.CountFrom * swarm/storage/localstore: persist gcSize * swarm/storage/localstore: remove composite retrieval index * swarm/shed: IterateWithPrefix and IterateWithPrefixFrom Index functions * swarm/storage/localstore: writeGCSize function with leveldb batch * swarm/storage/localstore: unexport modeSetRemove * swarm/storage/localstore: update writeGCSizeWorker comment * swarm/storage/localstore: add triggerGarbageCollection function * swarm/storage/localstore: call writeGCSize on DB Close * swarm/storage/localstore: additional comment in writeGCSizeWorker * swarm/storage/localstore: add MetricsPrefix option * swarm/storage/localstore: fix a typo * swamr/shed: only one Index Iterate function * swarm/storage/localstore: use shed Iterate function * swarm/shed: pass a new byte slice copy to index decode functions * swarm/storage/localstore: implement feed subscriptions * swarm/storage/localstore: add more subscriptions tests * swarm/storage/localsore: add parallel upload test * swarm/storage/localstore: use storage.MaxPO in subscription tests * swarm/storage/localstore: subscription of addresses instead chunks * swarm/storage/localstore: lock item address in collectGarbage iterator * swarm/storage/localstore: fix TestSubscribePull to include MaxPO * swarm/storage/localstore: improve subscriptions * swarm/storage/localstore: add TestDB_SubscribePull_sinceAndUntil test * swarm/storage/localstore: adjust pull sync tests * swarm/storage/localstore: remove writeGCSizeDelay and use literal * swarm/storage/localstore: adjust subscriptions tests delays and comments * swarm/storage/localstore: add godoc package overview * swarm/storage/localstore: fix a typo * swarm/storage/localstore: update package overview * swarm/storage/localstore: remove repeated index change * swarm/storage/localstore: rename ChunkInfo to ChunkDescriptor * swarm/storage/localstore: add comment in collectGarbageWorker * swarm/storage/localstore: replace atomics with mutexes for gcSize and tests * swarm/storage/localstore: protect addrs map in pull subs tests * swarm/storage/localstore: protect slices in push subs test * swarm/storage/localstore: protect chunks in TestModePutUpload_parallel * swarm/storage/localstore: fix a race in TestDB_updateGCSem defers * swarm/storage/localstore: remove parallel flag from tests * swarm/storage/localstore: fix a race in testDB_collectGarbageWorker * swarm/storage/localstore: remove unused code * swarm/storage/localstore: add more context to pull sub log messages * swarm/storage/localstore: BenchmarkPutUpload and global lock option * swarm/storage/localstore: pre-generate chunks in BenchmarkPutUpload * swarm/storage/localstore: correct useGlobalLock in collectGarbage * swarm/storage/localstore: fix typos and update comments * swarm/storage/localstore: update writeGCSize comment * swarm/storage/localstore: global batch write lock * swarm/storage/localstore: remove global lock option * swarm/storage/localstore: simplify DB.Close
6 years ago
db.batchMu.Lock()
defer db.batchMu.Unlock()
batch := new(leveldb.Batch)
// variables that provide information for operations
// to be done after write batch function successfully executes
var gcSizeChange int64 // number to add or subtract from gcSize
var triggerPullFeed bool // signal pull feed subscriptions to iterate
item := addressToItem(addr)
switch mode {
case ModeSetAccess:
// add to pull, insert to gc
// need to get access timestamp here as it is not
// provided by the access function, and it is not
// a property of a chunk provided to Accessor.Put.
i, err := db.retrievalDataIndex.Get(item)
switch err {
case nil:
item.StoreTimestamp = i.StoreTimestamp
case leveldb.ErrNotFound:
db.pushIndex.DeleteInBatch(batch, item)
item.StoreTimestamp = now()
default:
return err
}
i, err = db.retrievalAccessIndex.Get(item)
switch err {
case nil:
item.AccessTimestamp = i.AccessTimestamp
db.gcIndex.DeleteInBatch(batch, item)
gcSizeChange--
case leveldb.ErrNotFound:
// the chunk is not accessed before
default:
return err
}
item.AccessTimestamp = now()
db.retrievalAccessIndex.PutInBatch(batch, item)
db.pullIndex.PutInBatch(batch, item)
triggerPullFeed = true
db.gcIndex.PutInBatch(batch, item)
gcSizeChange++
case ModeSetSync:
// delete from push, insert to gc
// need to get access timestamp here as it is not
// provided by the access function, and it is not
// a property of a chunk provided to Accessor.Put.
i, err := db.retrievalDataIndex.Get(item)
if err != nil {
if err == leveldb.ErrNotFound {
// chunk is not found,
// no need to update gc index
// just delete from the push index
// if it is there
db.pushIndex.DeleteInBatch(batch, item)
return nil
}
return err
}
item.StoreTimestamp = i.StoreTimestamp
i, err = db.retrievalAccessIndex.Get(item)
switch err {
case nil:
item.AccessTimestamp = i.AccessTimestamp
db.gcIndex.DeleteInBatch(batch, item)
gcSizeChange--
case leveldb.ErrNotFound:
// the chunk is not accessed before
default:
return err
}
item.AccessTimestamp = now()
db.retrievalAccessIndex.PutInBatch(batch, item)
db.pushIndex.DeleteInBatch(batch, item)
db.gcIndex.PutInBatch(batch, item)
gcSizeChange++
case modeSetRemove:
// delete from retrieve, pull, gc
// need to get access timestamp here as it is not
// provided by the access function, and it is not
// a property of a chunk provided to Accessor.Put.
i, err := db.retrievalAccessIndex.Get(item)
switch err {
case nil:
item.AccessTimestamp = i.AccessTimestamp
case leveldb.ErrNotFound:
default:
return err
}
i, err = db.retrievalDataIndex.Get(item)
if err != nil {
return err
}
item.StoreTimestamp = i.StoreTimestamp
db.retrievalDataIndex.DeleteInBatch(batch, item)
db.retrievalAccessIndex.DeleteInBatch(batch, item)
db.pullIndex.DeleteInBatch(batch, item)
db.gcIndex.DeleteInBatch(batch, item)
// a check is needed for decrementing gcSize
// as delete is not reporting if the key/value pair
// is deleted or not
if _, err := db.gcIndex.Get(item); err == nil {
gcSizeChange = -1
}
default:
return ErrInvalidMode
}
swarm/storage/localstore: global batch write lock (#19245) * swarm/storage/localstore: most basic database * swarm/storage/localstore: fix typos and comments * swarm/shed: add uint64 field Dec and DecInBatch methods * swarm/storage/localstore: decrement size counter on ModeRemoval update * swarm/storage/localstore: unexport modeAccess and modeRemoval * swarm/storage/localstore: add WithRetrievalCompositeIndex * swarm/storage/localstore: add TestModeSyncing * swarm/storage/localstore: fix test name * swarm/storage/localstore: add TestModeUpload * swarm/storage/localstore: add TestModeRequest * swarm/storage/localstore: add TestModeSynced * swarm/storage/localstore: add TestModeAccess * swarm/storage/localstore: add TestModeRemoval * swarm/storage/localstore: add mock store option for chunk data * swarm/storage/localstore: add TestDB_pullIndex * swarm/storage/localstore: add TestDB_gcIndex * swarm/storage/localstore: change how batches are written * swarm/storage/localstore: add updateOnAccess function * swarm/storage/localhost: add DB.gcSize * swarm/storage/localstore: update comments * swarm/storage/localstore: add BenchmarkNew * swarm/storage/localstore: add retrieval tests benchmarks * swarm/storage/localstore: accessors redesign * swarm/storage/localstore: add semaphore for updateGC goroutine * swarm/storage/localstore: implement basic garbage collection * swarm/storage/localstore: optimize collectGarbage * swarm/storage/localstore: add more garbage collection tests cases * swarm/shed, swarm/storage/localstore: rename IndexItem to Item * swarm/shed: add Index.CountFrom * swarm/storage/localstore: persist gcSize * swarm/storage/localstore: remove composite retrieval index * swarm/shed: IterateWithPrefix and IterateWithPrefixFrom Index functions * swarm/storage/localstore: writeGCSize function with leveldb batch * swarm/storage/localstore: unexport modeSetRemove * swarm/storage/localstore: update writeGCSizeWorker comment * swarm/storage/localstore: add triggerGarbageCollection function * swarm/storage/localstore: call writeGCSize on DB Close * swarm/storage/localstore: additional comment in writeGCSizeWorker * swarm/storage/localstore: add MetricsPrefix option * swarm/storage/localstore: fix a typo * swamr/shed: only one Index Iterate function * swarm/storage/localstore: use shed Iterate function * swarm/shed: pass a new byte slice copy to index decode functions * swarm/storage/localstore: implement feed subscriptions * swarm/storage/localstore: add more subscriptions tests * swarm/storage/localsore: add parallel upload test * swarm/storage/localstore: use storage.MaxPO in subscription tests * swarm/storage/localstore: subscription of addresses instead chunks * swarm/storage/localstore: lock item address in collectGarbage iterator * swarm/storage/localstore: fix TestSubscribePull to include MaxPO * swarm/storage/localstore: improve subscriptions * swarm/storage/localstore: add TestDB_SubscribePull_sinceAndUntil test * swarm/storage/localstore: adjust pull sync tests * swarm/storage/localstore: remove writeGCSizeDelay and use literal * swarm/storage/localstore: adjust subscriptions tests delays and comments * swarm/storage/localstore: add godoc package overview * swarm/storage/localstore: fix a typo * swarm/storage/localstore: update package overview * swarm/storage/localstore: remove repeated index change * swarm/storage/localstore: rename ChunkInfo to ChunkDescriptor * swarm/storage/localstore: add comment in collectGarbageWorker * swarm/storage/localstore: replace atomics with mutexes for gcSize and tests * swarm/storage/localstore: protect addrs map in pull subs tests * swarm/storage/localstore: protect slices in push subs test * swarm/storage/localstore: protect chunks in TestModePutUpload_parallel * swarm/storage/localstore: fix a race in TestDB_updateGCSem defers * swarm/storage/localstore: remove parallel flag from tests * swarm/storage/localstore: fix a race in testDB_collectGarbageWorker * swarm/storage/localstore: remove unused code * swarm/storage/localstore: add more context to pull sub log messages * swarm/storage/localstore: BenchmarkPutUpload and global lock option * swarm/storage/localstore: pre-generate chunks in BenchmarkPutUpload * swarm/storage/localstore: correct useGlobalLock in collectGarbage * swarm/storage/localstore: fix typos and update comments * swarm/storage/localstore: update writeGCSize comment * swarm/storage/localstore: global batch write lock * swarm/storage/localstore: remove global lock option * swarm/storage/localstore: simplify DB.Close
6 years ago
err = db.incGCSizeInBatch(batch, gcSizeChange)
if err != nil {
return err
}
swarm/storage/localstore: global batch write lock (#19245) * swarm/storage/localstore: most basic database * swarm/storage/localstore: fix typos and comments * swarm/shed: add uint64 field Dec and DecInBatch methods * swarm/storage/localstore: decrement size counter on ModeRemoval update * swarm/storage/localstore: unexport modeAccess and modeRemoval * swarm/storage/localstore: add WithRetrievalCompositeIndex * swarm/storage/localstore: add TestModeSyncing * swarm/storage/localstore: fix test name * swarm/storage/localstore: add TestModeUpload * swarm/storage/localstore: add TestModeRequest * swarm/storage/localstore: add TestModeSynced * swarm/storage/localstore: add TestModeAccess * swarm/storage/localstore: add TestModeRemoval * swarm/storage/localstore: add mock store option for chunk data * swarm/storage/localstore: add TestDB_pullIndex * swarm/storage/localstore: add TestDB_gcIndex * swarm/storage/localstore: change how batches are written * swarm/storage/localstore: add updateOnAccess function * swarm/storage/localhost: add DB.gcSize * swarm/storage/localstore: update comments * swarm/storage/localstore: add BenchmarkNew * swarm/storage/localstore: add retrieval tests benchmarks * swarm/storage/localstore: accessors redesign * swarm/storage/localstore: add semaphore for updateGC goroutine * swarm/storage/localstore: implement basic garbage collection * swarm/storage/localstore: optimize collectGarbage * swarm/storage/localstore: add more garbage collection tests cases * swarm/shed, swarm/storage/localstore: rename IndexItem to Item * swarm/shed: add Index.CountFrom * swarm/storage/localstore: persist gcSize * swarm/storage/localstore: remove composite retrieval index * swarm/shed: IterateWithPrefix and IterateWithPrefixFrom Index functions * swarm/storage/localstore: writeGCSize function with leveldb batch * swarm/storage/localstore: unexport modeSetRemove * swarm/storage/localstore: update writeGCSizeWorker comment * swarm/storage/localstore: add triggerGarbageCollection function * swarm/storage/localstore: call writeGCSize on DB Close * swarm/storage/localstore: additional comment in writeGCSizeWorker * swarm/storage/localstore: add MetricsPrefix option * swarm/storage/localstore: fix a typo * swamr/shed: only one Index Iterate function * swarm/storage/localstore: use shed Iterate function * swarm/shed: pass a new byte slice copy to index decode functions * swarm/storage/localstore: implement feed subscriptions * swarm/storage/localstore: add more subscriptions tests * swarm/storage/localsore: add parallel upload test * swarm/storage/localstore: use storage.MaxPO in subscription tests * swarm/storage/localstore: subscription of addresses instead chunks * swarm/storage/localstore: lock item address in collectGarbage iterator * swarm/storage/localstore: fix TestSubscribePull to include MaxPO * swarm/storage/localstore: improve subscriptions * swarm/storage/localstore: add TestDB_SubscribePull_sinceAndUntil test * swarm/storage/localstore: adjust pull sync tests * swarm/storage/localstore: remove writeGCSizeDelay and use literal * swarm/storage/localstore: adjust subscriptions tests delays and comments * swarm/storage/localstore: add godoc package overview * swarm/storage/localstore: fix a typo * swarm/storage/localstore: update package overview * swarm/storage/localstore: remove repeated index change * swarm/storage/localstore: rename ChunkInfo to ChunkDescriptor * swarm/storage/localstore: add comment in collectGarbageWorker * swarm/storage/localstore: replace atomics with mutexes for gcSize and tests * swarm/storage/localstore: protect addrs map in pull subs tests * swarm/storage/localstore: protect slices in push subs test * swarm/storage/localstore: protect chunks in TestModePutUpload_parallel * swarm/storage/localstore: fix a race in TestDB_updateGCSem defers * swarm/storage/localstore: remove parallel flag from tests * swarm/storage/localstore: fix a race in testDB_collectGarbageWorker * swarm/storage/localstore: remove unused code * swarm/storage/localstore: add more context to pull sub log messages * swarm/storage/localstore: BenchmarkPutUpload and global lock option * swarm/storage/localstore: pre-generate chunks in BenchmarkPutUpload * swarm/storage/localstore: correct useGlobalLock in collectGarbage * swarm/storage/localstore: fix typos and update comments * swarm/storage/localstore: update writeGCSize comment * swarm/storage/localstore: global batch write lock * swarm/storage/localstore: remove global lock option * swarm/storage/localstore: simplify DB.Close
6 years ago
err = db.shed.WriteBatch(batch)
if err != nil {
return err
}
if triggerPullFeed {
db.triggerPullSubscriptions(db.po(item.Address))
}
return nil
}