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go/test/fixedbugs/issue38093.go
Dmitri Shuralyov b2fd76ab8d test: migrate remaining files to go:build syntax
Most of the test cases in the test directory use the new go:build syntax
already. Convert the rest. In general, try to place the build constraint
line below the test directive comment in more places.

For #41184.
For #60268.

Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b
Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Reviewed-on: https://go-review.googlesource.com/c/go/+/536236
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-10-19 23:33:25 +00:00

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Go

// run
//go:build js
// Copyright 2020 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.
// Test race condition between timers and wasm calls that led to memory corruption.
package main
import (
"os"
"syscall/js"
"time"
)
func main() {
ch1 := make(chan struct{})
go func() {
for {
time.Sleep(5 * time.Millisecond)
ch1 <- struct{}{}
}
}()
go func() {
for {
time.Sleep(8 * time.Millisecond)
ch1 <- struct{}{}
}
}()
go func() {
time.Sleep(2 * time.Second)
os.Exit(0)
}()
for range ch1 {
ch2 := make(chan struct{}, 1)
f := js.FuncOf(func(this js.Value, args []js.Value) interface{} {
ch2 <- struct{}{}
return nil
})
defer f.Release()
fn := js.Global().Get("Function").New("cb", "cb();")
fn.Invoke(f)
<-ch2
}
}