ipld-eth-server/pkg/super_node/eth/mocks/streamer.go

45 lines
1.5 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program 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 Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package mocks
import (
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/statediff"
"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
)
// StateDiffStreamer is the underlying struct for the Streamer interface
type StateDiffStreamer struct {
PassedPayloadChan chan interface{}
ReturnSub *rpc.ClientSubscription
ReturnErr error
StreamPayloads []statediff.Payload
}
// Stream is the main loop for subscribing to data from the Geth state diff process
func (sds *StateDiffStreamer) Stream(payloadChan chan interface{}) (shared.ClientSubscription, error) {
sds.PassedPayloadChan = payloadChan
go func() {
for _, payload := range sds.StreamPayloads {
sds.PassedPayloadChan <- payload
}
}()
return sds.ReturnSub, sds.ReturnErr
}