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authorJanoš Guljaš <janos@users.noreply.github.com>2019-04-10 22:50:58 +0800
committerAnton Evangelatov <anton.evangelatov@gmail.com>2019-05-10 18:26:26 +0800
commit996755c4a832afce8629a771cab8879c88c98355 (patch)
treefcf48d69c183a89823e3435f8d08468278a97c3c /swarm/storage/memstore.go
parentc94d582aa781b26412ba7d570f6707d193303a02 (diff)
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cmd/swarm, swarm: LocalStore storage integration
Diffstat (limited to 'swarm/storage/memstore.go')
-rw-r--r--swarm/storage/memstore.go92
1 files changed, 0 insertions, 92 deletions
diff --git a/swarm/storage/memstore.go b/swarm/storage/memstore.go
deleted file mode 100644
index 611ac3bc5..000000000
--- a/swarm/storage/memstore.go
+++ /dev/null
@@ -1,92 +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/>.
-
-// memory storage layer for the package blockhash
-
-package storage
-
-import (
- "context"
-
- lru "github.com/hashicorp/golang-lru"
-)
-
-type MemStore struct {
- cache *lru.Cache
- disabled bool
-}
-
-//NewMemStore is instantiating a MemStore cache keeping all frequently requested
-//chunks in the `cache` LRU cache.
-func NewMemStore(params *StoreParams, _ *LDBStore) (m *MemStore) {
- if params.CacheCapacity == 0 {
- return &MemStore{
- disabled: true,
- }
- }
-
- c, err := lru.New(int(params.CacheCapacity))
- if err != nil {
- panic(err)
- }
-
- return &MemStore{
- cache: c,
- }
-}
-
-// Has needed to implement SyncChunkStore
-func (m *MemStore) Has(_ context.Context, addr Address) bool {
- return m.cache.Contains(addr)
-}
-
-func (m *MemStore) Get(_ context.Context, addr Address) (Chunk, error) {
- if m.disabled {
- return nil, ErrChunkNotFound
- }
-
- c, ok := m.cache.Get(string(addr))
- if !ok {
- return nil, ErrChunkNotFound
- }
- return c.(Chunk), nil
-}
-
-func (m *MemStore) Put(_ context.Context, c Chunk) error {
- if m.disabled {
- return nil
- }
-
- m.cache.Add(string(c.Address()), c)
- return nil
-}
-
-func (m *MemStore) setCapacity(n int) {
- if n <= 0 {
- m.disabled = true
- } else {
- c, err := lru.New(n)
- if err != nil {
- panic(err)
- }
-
- *m = MemStore{
- cache: c,
- }
- }
-}
-
-func (s *MemStore) Close() {}