go read_test 源码
golang read_test 代码
文件路径：/src/internal/poll/read_test.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
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
7、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦