From: Alex Myasoedov <msoedov@gmail.com>
Date: Mon, 20 May 2019 15:15:05 +0000 (+0300)
Subject: context: document CancelFunc to be safe for simultaneous use by multiple goroutines
X-Git-Tag: go1.13beta1~248
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=82ee4e7f78bf34da31e1d050529ab82dc03cf13a;p=gostls13.git

context: document CancelFunc to be safe for simultaneous use by multiple goroutines

Fixes #32145

Change-Id: If4c9dd3a2af748974141ad6e571f80efcbaad772
Reviewed-on: https://go-review.googlesource.com/c/go/+/177899
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---

diff --git a/src/context/context.go b/src/context/context.go
index 0f36881b1e..05d01d0294 100644
--- a/src/context/context.go
+++ b/src/context/context.go
@@ -220,6 +220,7 @@ func TODO() Context {
 
 // A CancelFunc tells an operation to abandon its work.
 // A CancelFunc does not wait for the work to stop.
+// A CancelFunc may be called by multiple goroutines simultaneously.
 // After the first call, subsequent calls to a CancelFunc do nothing.
 type CancelFunc func()