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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| package test | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/hex" | ||
| "fmt" | ||
| "reflect" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/rollkit/go-sequencing" | ||
| ) | ||
|
|
||
| // MultiRollupSequencer is a sequencer for testing that serves multiple rollups | ||
| type MultiRollupSequencer struct { | ||
| rollups map[string]*RollupData | ||
| rollupsMutex sync.RWMutex | ||
| } | ||
|
|
||
| // RollupData holds the data for a specific rollup, including its transaction queue, last batch hash, and seen batches. | ||
| type RollupData struct { | ||
| tq *TransactionQueue | ||
| lastBatchHash []byte | ||
| lastBatchHashMutex sync.RWMutex | ||
|
|
||
| seenBatches map[string]struct{} | ||
| seenBatchesMutex sync.Mutex | ||
| } | ||
|
|
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| // SubmitRollupTransaction implements sequencing.Sequencer. | ||
| func (d *MultiRollupSequencer) SubmitRollupTransaction(ctx context.Context, req sequencing.SubmitRollupTransactionRequest) (*sequencing.SubmitRollupTransactionResponse, error) { | ||
| rollup, err := d.getOrCreateRollup(req.RollupId) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| rollup.tq.AddTransaction(req.Tx) | ||
| return &sequencing.SubmitRollupTransactionResponse{}, nil | ||
| } | ||
|
|
||
| // GetNextBatch implements sequencing.Sequencer. | ||
| func (d *MultiRollupSequencer) GetNextBatch(ctx context.Context, req sequencing.GetNextBatchRequest) (*sequencing.GetNextBatchResponse, error) { | ||
| rollup, err := d.getOrCreateRollup(req.RollupId) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| now := time.Now() | ||
| rollup.lastBatchHashMutex.RLock() | ||
| lastBatchHash := rollup.lastBatchHash | ||
| rollup.lastBatchHashMutex.RUnlock() | ||
|
|
||
| if !reflect.DeepEqual(lastBatchHash, req.LastBatchHash) { | ||
| return nil, fmt.Errorf("batch hash mismatch: lastBatchHash = %x, req.LastBatchHash = %x", lastBatchHash, req.LastBatchHash) | ||
| } | ||
|
|
||
| batch := rollup.tq.GetNextBatch(req.MaxBytes) | ||
| batchRes := &sequencing.GetNextBatchResponse{Batch: batch, Timestamp: now} | ||
| // If there are no transactions, return empty batch without updating the last batch hash | ||
| if len(batch.Transactions) == 0 { | ||
| return batchRes, nil | ||
| } | ||
|
|
||
| h, err := batch.Hash() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| rollup.lastBatchHashMutex.Lock() | ||
| rollup.lastBatchHash = h | ||
| rollup.lastBatchHashMutex.Unlock() | ||
|
|
||
| rollup.seenBatchesMutex.Lock() | ||
| rollup.seenBatches[hex.EncodeToString(h)] = struct{}{} | ||
| rollup.seenBatchesMutex.Unlock() | ||
| return batchRes, nil | ||
| } | ||
|
|
||
| // VerifyBatch implements sequencing.Sequencer. | ||
| func (d *MultiRollupSequencer) VerifyBatch(ctx context.Context, req sequencing.VerifyBatchRequest) (*sequencing.VerifyBatchResponse, error) { | ||
| rollup, err := d.getOrCreateRollup(req.RollupId) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| rollup.seenBatchesMutex.Lock() | ||
| defer rollup.seenBatchesMutex.Unlock() | ||
| key := hex.EncodeToString(req.BatchHash) | ||
| if _, exists := rollup.seenBatches[key]; exists { | ||
| return &sequencing.VerifyBatchResponse{Status: true}, nil | ||
| } | ||
| return &sequencing.VerifyBatchResponse{Status: false}, nil | ||
| } | ||
|
|
||
| // getOrCreateRollup returns the RollupData for a given rollupId, creating it if necessary. | ||
| func (d *MultiRollupSequencer) getOrCreateRollup(rollupId []byte) (*RollupData, error) { | ||
| rollupKey := hex.EncodeToString(rollupId) | ||
|
|
||
| d.rollupsMutex.Lock() | ||
| defer d.rollupsMutex.Unlock() | ||
| rollup, exists := d.rollups[rollupKey] | ||
| if exists { | ||
| return rollup, nil | ||
| } | ||
|
|
||
| // Double-check existence after acquiring write lock | ||
| if rollup, exists := d.rollups[rollupKey]; exists { | ||
| return rollup, nil | ||
| } | ||
|
|
||
| // Create a new RollupData if it doesn't exist | ||
| rollup = &RollupData{ | ||
| tq: NewTransactionQueue(), | ||
| seenBatches: make(map[string]struct{}, 0), | ||
| } | ||
| d.rollups[rollupKey] = rollup | ||
| return rollup, nil | ||
| } | ||
|
|
||
| // NewMultiRollupSequencer creates a new MultiRollupSequencer | ||
| func NewMultiRollupSequencer() *MultiRollupSequencer { | ||
| return &MultiRollupSequencer{ | ||
| rollups: make(map[string]*RollupData), | ||
| } | ||
| } | ||
|
|
||
| var _ sequencing.Sequencer = &MultiRollupSequencer{} |
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