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author | Janoš Guljaš <janos@users.noreply.github.com> | 2019-04-10 22:50:58 +0800 |
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committer | Anton Evangelatov <anton.evangelatov@gmail.com> | 2019-05-10 18:26:26 +0800 |
commit | 996755c4a832afce8629a771cab8879c88c98355 (patch) | |
tree | fcf48d69c183a89823e3435f8d08468278a97c3c /swarm/storage/memstore.go | |
parent | c94d582aa781b26412ba7d570f6707d193303a02 (diff) | |
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cmd/swarm, swarm: LocalStore storage integration
Diffstat (limited to 'swarm/storage/memstore.go')
-rw-r--r-- | swarm/storage/memstore.go | 92 |
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() {} |