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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /test/fixedbugs/issue19182.go
parentInitial commit. (diff)
downloadgolang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.tar.xz
golang-1.16-73df946d56c74384511a194dd01dbe099584fd1a.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--test/fixedbugs/issue19182.go37
1 files changed, 37 insertions, 0 deletions
diff --git a/test/fixedbugs/issue19182.go b/test/fixedbugs/issue19182.go
new file mode 100644
index 0000000..e1f3ffb
--- /dev/null
+++ b/test/fixedbugs/issue19182.go
@@ -0,0 +1,37 @@
+// run
+// +build !js
+
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+ "fmt"
+ "runtime"
+ "sync/atomic"
+ "time"
+)
+
+var a uint64 = 0
+
+func main() {
+ runtime.GOMAXPROCS(2) // With just 1, infinite loop never yields
+
+ go func() {
+ for {
+ atomic.AddUint64(&a, uint64(1))
+ }
+ }()
+
+ time.Sleep(10 * time.Millisecond) // Short sleep is enough in passing case
+ i, val := 0, atomic.LoadUint64(&a)
+ for ; val == 0 && i < 100; val, i = atomic.LoadUint64(&a), i+1 {
+ time.Sleep(100 * time.Millisecond)
+ }
+ if val == 0 {
+ fmt.Printf("Failed to observe atomic increment after %d tries\n", i)
+ }
+
+}