remove vestigial packages

pkg/serve/helpers.go

@@ -1,37 +0,0 @@
-// 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 serve
-
-import "github.com/cerc-io/ipld-eth-server/v4/pkg/log"
-
-func sendNonBlockingErr(sub Subscription, err error) {
-	log.Error(err)
-	select {
-	case sub.PayloadChan <- SubscriptionPayload{Data: nil, Err: err.Error(), Flag: EmptyFlag}:
-	default:
-		log.Infof("unable to send error to subscription %s", sub.ID)
-	}
-}
-
-func sendNonBlockingQuit(sub Subscription) {
-	select {
-	case sub.QuitChan <- true:
-		log.Infof("closing subscription %s", sub.ID)
-	default:
-		log.Infof("unable to close subscription %s; channel has no receiver", sub.ID)
-	}
-}

pkg/serve/subscription.go

@@ -1,60 +0,0 @@
-// 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 serve
-
-import (
-	"errors"
-
-	"github.com/ethereum/go-ethereum/rpc"
-)
-
-type Flag int32
-
-const (
-	EmptyFlag Flag = iota
-	BackFillCompleteFlag
-)
-
-// Subscription holds the information for an individual client subscription to the watcher
-type Subscription struct {
-	ID          rpc.ID
-	PayloadChan chan<- SubscriptionPayload
-	QuitChan    chan<- bool
-}
-
-// SubscriptionPayload is the struct for a watcher data subscription payload
-// It carries data of a type specific to the chain being supported/queried and an error message
-type SubscriptionPayload struct {
-	Data   []byte `json:"data"` // e.g. for Ethereum rlp serialized eth.StreamPayload
-	Height int64  `json:"height"`
-	Err    string `json:"err"`  // field for error
-	Flag   Flag   `json:"flag"` // field for message
-}
-
-func (sp SubscriptionPayload) Error() error {
-	if sp.Err == "" {
-		return nil
-	}
-	return errors.New(sp.Err)
-}
-
-func (sp SubscriptionPayload) BackFillComplete() bool {
-	if sp.Flag == BackFillCompleteFlag {
-		return true
-	}
-	return false
-}