wehub-resource-sync
147 lines
4.0 KiB
Go
147 lines
4.0 KiB
Go
// Copyright 2019 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// This file incorporates work covered by the following copyright and
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// permission notice:
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//
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// Copyright 2016 Attic Labs, Inc. All rights reserved.
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// Licensed under the Apache License, version 2.0:
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// http://www.apache.org/licenses/LICENSE-2.0
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package chunks
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import (
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"context"
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"sync/atomic"
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"github.com/dolthub/dolt/go/store/d"
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"github.com/dolthub/dolt/go/store/hash"
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)
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type TestStorage struct {
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MemoryStorage
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}
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func (t *TestStorage) NewView() *TestStoreView {
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return &TestStoreView{ChunkStore: t.MemoryStorage.NewView()}
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}
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type TestStoreView struct {
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ChunkStore
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reads int32
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hashes int32
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writes int32
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}
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var _ ChunkStoreGarbageCollector = &TestStoreView{}
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func (s *TestStoreView) Get(ctx context.Context, h hash.Hash) (Chunk, error) {
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atomic.AddInt32(&s.reads, 1)
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return s.ChunkStore.Get(ctx, h)
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}
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func (s *TestStoreView) GetMany(ctx context.Context, hashes hash.HashSet, found func(context.Context, *Chunk)) error {
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atomic.AddInt32(&s.reads, int32(len(hashes)))
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return s.ChunkStore.GetMany(ctx, hashes, found)
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}
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func (s *TestStoreView) CacheHas(_ hash.Hash) bool {
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return false
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}
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func (s *TestStoreView) Has(ctx context.Context, h hash.Hash) (bool, error) {
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atomic.AddInt32(&s.hashes, 1)
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return s.ChunkStore.Has(ctx, h)
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}
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func (s *TestStoreView) HasMany(ctx context.Context, hashes hash.HashSet) (hash.HashSet, error) {
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atomic.AddInt32(&s.hashes, int32(len(hashes)))
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return s.ChunkStore.HasMany(ctx, hashes)
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}
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func (s *TestStoreView) Put(ctx context.Context, c Chunk, getAddrs InsertAddrsCurry) error {
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atomic.AddInt32(&s.writes, 1)
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return s.ChunkStore.Put(ctx, c, getAddrs)
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}
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func (s *TestStoreView) BeginGC(ctx context.Context, keeper func(hash.Hash) bool, mode GCMode) error {
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collector, ok := s.ChunkStore.(ChunkStoreGarbageCollector)
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if !ok {
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return ErrUnsupportedOperation
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}
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return collector.BeginGC(ctx, keeper, mode)
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}
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func (s *TestStoreView) EndGC(mode GCMode) {
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collector, ok := s.ChunkStore.(ChunkStoreGarbageCollector)
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if !ok {
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panic(ErrUnsupportedOperation)
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}
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collector.EndGC(mode)
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}
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func (s *TestStoreView) MarkAndSweepChunks(ctx context.Context, getAddrs GetAddrs, filter HasManyFunc, dest ChunkStore, gcConfig GCConfig, incrementalUpdateManifest bool) (MarkAndSweeper, error) {
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collector, ok := s.ChunkStore.(ChunkStoreGarbageCollector)
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if !ok || dest != s {
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return nil, ErrUnsupportedOperation
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}
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return collector.MarkAndSweepChunks(ctx, getAddrs, filter, collector, gcConfig, false)
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}
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func (s *TestStoreView) Count(_ context.Context) (uint32, error) {
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panic("currently unused")
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}
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func (s *TestStoreView) IterateAllChunks(_ context.Context, _ func(Chunk)) error {
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panic("currently unused")
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}
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func (s *TestStoreView) Reads() int {
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reads := atomic.LoadInt32(&s.reads)
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return int(reads)
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}
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func (s *TestStoreView) Hashes() int {
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hashes := atomic.LoadInt32(&s.hashes)
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return int(hashes)
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}
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func (s *TestStoreView) Writes() int {
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writes := atomic.LoadInt32(&s.writes)
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return int(writes)
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}
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type TestStoreFactory struct {
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stores map[string]*TestStorage
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}
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func NewTestStoreFactory() *TestStoreFactory {
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return &TestStoreFactory{map[string]*TestStorage{}}
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}
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func (f *TestStoreFactory) CreateStore(ns string) ChunkStore {
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if f.stores == nil {
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d.Panic("Cannot use TestStoreFactory after Shutter().")
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}
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if ts, present := f.stores[ns]; present {
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return ts.NewView()
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}
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f.stores[ns] = &TestStorage{}
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return f.stores[ns].NewView()
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}
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func (f *TestStoreFactory) Shutter() {
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f.stores = nil
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}
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