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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package dispute | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "github.com/ChainSafe/gossamer/dot/parachain/dispute/overseer" | ||
| "github.com/ChainSafe/gossamer/dot/parachain/dispute/types" | ||
| parachainTypes "github.com/ChainSafe/gossamer/dot/parachain/types" | ||
| "time" | ||
| ) | ||
|
|
||
| const timeout = 10 * time.Second | ||
|
|
||
| func getBlockNumber(overseerChannel chan<- any, receipt parachainTypes.CandidateReceipt) (uint32, error) { | ||
| respCh := make(chan any, 1) | ||
| relayParent, err := receipt.Hash() | ||
| if err != nil { | ||
| return 0, fmt.Errorf("get hash: %w", err) | ||
| } | ||
|
|
||
| message := overseer.ChainAPIMessage[overseer.BlockNumberRequest]{ | ||
| Message: overseer.BlockNumberRequest{Hash: relayParent}, | ||
| ResponseChannel: respCh, | ||
| } | ||
| result, err := call(overseerChannel, message, message.ResponseChannel) | ||
| if err != nil { | ||
| return 0, fmt.Errorf("send message: %w", err) | ||
| } | ||
|
|
||
| blockNumber, ok := result.(uint32) | ||
| if !ok { | ||
| return 0, fmt.Errorf("unexpected response type: %T", result) | ||
| } | ||
| return blockNumber, nil | ||
| } | ||
|
|
||
| func sendMessage(channel chan<- any, message any) error { | ||
| // Send with timeout | ||
| ctx, cancel := context.WithTimeout(context.Background(), timeout) | ||
| defer cancel() | ||
|
|
||
| select { | ||
| case channel <- message: | ||
| return nil | ||
| case <-ctx.Done(): | ||
| return ctx.Err() | ||
| } | ||
| } | ||
|
|
||
| func call(channel chan<- any, message any, responseChan chan any) (any, error) { | ||
| // Send with timeout | ||
| ctx, cancel := context.WithTimeout(context.Background(), timeout) | ||
| defer cancel() | ||
|
|
||
| select { | ||
| case channel <- message: | ||
| case <-ctx.Done(): | ||
| return nil, ctx.Err() | ||
| } | ||
|
|
||
| select { | ||
| case response := <-responseChan: | ||
| return response, nil | ||
| case <-ctx.Done(): | ||
| return nil, ctx.Err() | ||
| } | ||
| } | ||
|
|
||
| func sendResult(overseerChannel chan<- any, request ParticipationRequest, outcome types.ParticipationOutcomeType) { | ||
| participationOutcome, err := types.NewCustomParticipationOutcomeVDT(outcome) | ||
| if err != nil { | ||
| logger.Errorf( | ||
| "failed to create participation outcome: %s, error: %s", | ||
| outcome, | ||
| err, | ||
| ) | ||
| return | ||
| } | ||
|
|
||
| statement := ParticipationStatement{ | ||
| Session: request.session, | ||
| CandidateHash: request.candidateHash, | ||
| CandidateReceipt: request.candidateReceipt, | ||
| Outcome: participationOutcome, | ||
| } | ||
| if err := sendMessage(overseerChannel, statement); err != nil { | ||
| logger.Errorf( | ||
| "failed to send participation statement: %s, error: %s", | ||
| statement, | ||
| err, | ||
| ) | ||
| } | ||
| } |
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