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authorAnton Evangelatov <anton.evangelatov@gmail.com>2018-11-21 21:36:56 +0800
committerGitHub <noreply@github.com>2018-11-21 21:36:56 +0800
commit4c181e4fb98bb88503cccd6147026b6c2b7b56f6 (patch)
tree48fa84c1fafd579b6df86e3585ed903b461e4734 /swarm
parent3fd87f219342ca97a6595263a2aa28bec65fee04 (diff)
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swarm/state: refactor InmemoryStore (#18143)
Diffstat (limited to 'swarm')
-rw-r--r--swarm/network/simulations/overlay.go4
-rw-r--r--swarm/network/stream/delivery.go2
-rw-r--r--swarm/state/dbstore.go21
-rw-r--r--swarm/state/inmemorystore.go94
-rw-r--r--swarm/state/store.go26
5 files changed, 24 insertions, 123 deletions
diff --git a/swarm/network/simulations/overlay.go b/swarm/network/simulations/overlay.go
index caf7ff1f2..284ae6398 100644
--- a/swarm/network/simulations/overlay.go
+++ b/swarm/network/simulations/overlay.go
@@ -64,12 +64,12 @@ func init() {
type Simulation struct {
mtx sync.Mutex
- stores map[enode.ID]*state.InmemoryStore
+ stores map[enode.ID]state.Store
}
func NewSimulation() *Simulation {
return &Simulation{
- stores: make(map[enode.ID]*state.InmemoryStore),
+ stores: make(map[enode.ID]state.Store),
}
}
diff --git a/swarm/network/stream/delivery.go b/swarm/network/stream/delivery.go
index 0109fbdef..64d754336 100644
--- a/swarm/network/stream/delivery.go
+++ b/swarm/network/stream/delivery.go
@@ -169,7 +169,7 @@ func (d *Delivery) handleRetrieveRequestMsg(ctx context.Context, sp *Peer, req *
go func() {
chunk, err := d.chunkStore.Get(ctx, req.Addr)
if err != nil {
- log.Warn("ChunkStore.Get can not retrieve chunk", "err", err)
+ log.Warn("ChunkStore.Get can not retrieve chunk", "peer", sp.ID().String(), "addr", req.Addr, "hopcount", req.HopCount, "err", err)
return
}
if req.SkipCheck {
diff --git a/swarm/state/dbstore.go b/swarm/state/dbstore.go
index b0aa92e27..fc5dd8f7c 100644
--- a/swarm/state/dbstore.go
+++ b/swarm/state/dbstore.go
@@ -22,6 +22,7 @@ import (
"errors"
"github.com/syndtr/goleveldb/leveldb"
+ "github.com/syndtr/goleveldb/leveldb/storage"
)
// ErrNotFound is returned when no results are returned from the database
@@ -30,6 +31,15 @@ var ErrNotFound = errors.New("ErrorNotFound")
// ErrInvalidArgument is returned when the argument type does not match the expected type
var ErrInvalidArgument = errors.New("ErrorInvalidArgument")
+// Store defines methods required to get, set, delete values for different keys
+// and close the underlying resources.
+type Store interface {
+ Get(key string, i interface{}) (err error)
+ Put(key string, i interface{}) (err error)
+ Delete(key string) (err error)
+ Close() error
+}
+
// DBStore uses LevelDB to store values.
type DBStore struct {
db *leveldb.DB
@@ -46,6 +56,17 @@ func NewDBStore(path string) (s *DBStore, err error) {
}, nil
}
+// NewInmemoryStore returns a new instance of DBStore. To be used only in tests and simulations.
+func NewInmemoryStore() *DBStore {
+ db, err := leveldb.Open(storage.NewMemStorage(), nil)
+ if err != nil {
+ panic(err)
+ }
+ return &DBStore{
+ db: db,
+ }
+}
+
// Get retrieves a persisted value for a specific key. If there is no results
// ErrNotFound is returned. The provided parameter should be either a byte slice or
// a struct that implements the encoding.BinaryUnmarshaler interface
diff --git a/swarm/state/inmemorystore.go b/swarm/state/inmemorystore.go
deleted file mode 100644
index 3ba48592b..000000000
--- a/swarm/state/inmemorystore.go
+++ /dev/null
@@ -1,94 +0,0 @@
-// 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 state
-
-import (
- "encoding"
- "encoding/json"
- "sync"
-)
-
-// InmemoryStore is the reference implementation of Store interface that is supposed
-// to be used in tests.
-type InmemoryStore struct {
- db map[string][]byte
- mu sync.RWMutex
-}
-
-// NewInmemoryStore returns a new instance of InmemoryStore.
-func NewInmemoryStore() *InmemoryStore {
- return &InmemoryStore{
- db: make(map[string][]byte),
- }
-}
-
-// Get retrieves a value stored for a specific key. If there is no value found,
-// ErrNotFound is returned.
-func (s *InmemoryStore) Get(key string, i interface{}) (err error) {
- s.mu.RLock()
- defer s.mu.RUnlock()
-
- bytes, ok := s.db[key]
- if !ok {
- return ErrNotFound
- }
-
- unmarshaler, ok := i.(encoding.BinaryUnmarshaler)
- if !ok {
- return json.Unmarshal(bytes, i)
- }
-
- return unmarshaler.UnmarshalBinary(bytes)
-}
-
-// Put stores a value for a specific key.
-func (s *InmemoryStore) Put(key string, i interface{}) (err error) {
- s.mu.Lock()
- defer s.mu.Unlock()
- var bytes []byte
-
- marshaler, ok := i.(encoding.BinaryMarshaler)
- if !ok {
- if bytes, err = json.Marshal(i); err != nil {
- return err
- }
- } else {
- if bytes, err = marshaler.MarshalBinary(); err != nil {
- return err
- }
- }
-
- s.db[key] = bytes
- return nil
-}
-
-// Delete removes value stored under a specific key.
-func (s *InmemoryStore) Delete(key string) (err error) {
- s.mu.Lock()
- defer s.mu.Unlock()
-
- if _, ok := s.db[key]; !ok {
- return ErrNotFound
- }
- delete(s.db, key)
- return nil
-}
-
-// Close does not do anything.
-func (s *InmemoryStore) Close() error {
- return nil
-}
diff --git a/swarm/state/store.go b/swarm/state/store.go
deleted file mode 100644
index fb7fe258f..000000000
--- a/swarm/state/store.go
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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 state
-
-// Store defines methods required to get, set, delete values for different keys
-// and close the underlying resources.
-type Store interface {
- Get(key string, i interface{}) (err error)
- Put(key string, i interface{}) (err error)
- Delete(key string) (err error)
- Close() error
-}