[#125] ir: Set extra wallets on SIGHUP

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/innerring/processors/alphabet/processor.go

@@ -3,6 +3,7 @@ package alphabet
 import (
 	"errors"
 	"fmt"
+	"sync"
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -45,7 +46,9 @@ type (
 
 	// Processor of events produced for alphabet contracts in the sidechain.
 	Processor struct {
-		parsedWallets     []util.Uint160
+		parsedWallets []util.Uint160
+		// protects parsedWallets from concurrent change
+		pwLock            *sync.RWMutex
 		log               *logger.Logger
 		pool              *ants.Pool
 		alphabetContracts Contracts
@@ -88,6 +91,7 @@ func New(p *Params) (*Processor, error) {
 
 	return &Processor{
 		parsedWallets:     p.ParsedWallets,
+		pwLock:            new(sync.RWMutex),
 		log:               p.Log,
 		pool:              pool,
 		alphabetContracts: p.AlphabetContracts,
@@ -98,6 +102,12 @@ func New(p *Params) (*Processor, error) {
 	}, nil
 }
 
+func (ap *Processor) SetParsedWallets(parsedWallets []util.Uint160) {
+	ap.pwLock.Lock()
+	ap.parsedWallets = parsedWallets
+	ap.pwLock.Unlock()
+}
+
 // ListenerNotificationParsers for the 'event.Listener' event producer.
 func (ap *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
 	return nil