worker/types/worker: make ID allocation atomic

Message IDs are allocated for both messages from UI to workers and the other
way around. Hence, the global nextId variable is accessed from multiple
goroutines.

Instead, use atomic to access the global counter.

1 files changed, 5 insertions, 5 deletions

diff --git a/worker/types/messages.go b/worker/types/messages.go
index 0cb6eeb..eb54a15 100644
--- a/worker/types/messages.go
+++ b/worker/types/messages.go
@@ -12,13 +12,13 @@ import (
 
 type WorkerMessage interface {
 	InResponseTo() WorkerMessage
-	getId() int
-	setId(id int)
+	getId() int64
+	setId(id int64)
 }
 
 type Message struct {
 	inResponseTo WorkerMessage
-	id           int
+	id           int64
 }
 
 func RespondTo(msg WorkerMessage) Message {
@@ -31,11 +31,11 @@ func (m Message) InResponseTo() WorkerMessage {
 	return m.inResponseTo
 }
 
-func (m Message) getId() int {
+func (m Message) getId() int64 {
 	return m.id
 }
 
-func (m Message) setId(id int) {
+func (m Message) setId(id int64) {
 	m.id = id
 }