cfcbb4227f
This does not yet include support for the //go:embed directive added in this release. * Makefile.am (check-runtime): Don't create check-runtime-dir. (mostlyclean-local): Don't remove check-runtime-dir. (check-go-tool, check-vet): Copy in go.mod and modules.txt. (check-cgo-test, check-carchive-test): Add go.mod file. * Makefile.in: Regenerate. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/280172
62 lines
1.1 KiB
Go
62 lines
1.1 KiB
Go
// Copyright 2019 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 poll_test
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestRead(t *testing.T) {
|
|
t.Run("SpecialFile", func(t *testing.T) {
|
|
var wg sync.WaitGroup
|
|
for _, p := range specialFiles() {
|
|
for i := 0; i < 4; i++ {
|
|
wg.Add(1)
|
|
go func(p string) {
|
|
defer wg.Done()
|
|
for i := 0; i < 100; i++ {
|
|
if _, err := os.ReadFile(p); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
time.Sleep(time.Nanosecond)
|
|
}
|
|
}(p)
|
|
}
|
|
}
|
|
wg.Wait()
|
|
})
|
|
}
|
|
|
|
func specialFiles() []string {
|
|
var ps []string
|
|
switch runtime.GOOS {
|
|
case "darwin", "ios", "dragonfly", "freebsd", "netbsd", "openbsd":
|
|
ps = []string{
|
|
"/dev/null",
|
|
}
|
|
case "linux":
|
|
ps = []string{
|
|
"/dev/null",
|
|
"/proc/stat",
|
|
"/sys/devices/system/cpu/online",
|
|
}
|
|
}
|
|
nps := ps[:0]
|
|
for _, p := range ps {
|
|
f, err := os.Open(p)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
f.Close()
|
|
nps = append(nps, p)
|
|
}
|
|
return nps
|
|
}
|