From c7096881717ecba8d86fc591c1cee0940e31ec2a Mon Sep 17 00:00:00 2001
From: Andy Lindeman <andy@lindeman.io>
Date: Fri, 8 May 2020 05:45:59 -0400
Subject: [PATCH] Deregister signal channel (#16)

If `SignalHandler` is being used as a mechanism to exit the program
entirely, these resources will be cleaned up naturally. But if not,
the signal should be explicitly deregistered.

Make sure the channel is eligible to be garbage collected and that no
additional signals should be delivered to the channel after this actor
exits.
---
 actors.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/actors.go b/actors.go
index ef93495..d1bc754 100644
--- a/actors.go
+++ b/actors.go
@@ -15,6 +15,7 @@ func SignalHandler(ctx context.Context, signals ...os.Signal) (execute func() er
 	return func() error {
 			c := make(chan os.Signal, 1)
 			signal.Notify(c, signals...)
+			defer signal.Stop(c)
 			select {
 			case sig := <-c:
 				return SignalError{Signal: sig}