From 73df946d56c74384511a194dd01dbe099584fd1a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:14:23 +0200 Subject: Adding upstream version 1.16.10. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue19182.go | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 test/fixedbugs/issue19182.go (limited to 'test/fixedbugs/issue19182.go') 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) + } + +} -- cgit v1.2.3