go test_linux 源码
golang test_linux 代码
文件路径：/src/cmd/dist/test_linux.go
// Copyright 2016 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.
//go:build linux
// +build linux
package main
import (
"syscall"
"unsafe"
)
const ioctlReadTermios = syscall.TCGETS
// isTerminal reports whether fd is a terminal.
func isTerminal(fd uintptr) bool {
var termios syscall.Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}
func init() {
stdOutErrAreTerminals = func() bool {
return isTerminal(1) && isTerminal(2)
}
}
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