| // 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. |
| |
| // +build linux |
| |
| package main |
| |
| import ( |
| "bytes" |
| "fmt" |
| "io/ioutil" |
| "os" |
| "syscall" |
| ) |
| |
| func gettid() int { |
| return syscall.Gettid() |
| } |
| |
| func tidExists(tid int) (exists, supported bool) { |
| stat, err := ioutil.ReadFile(fmt.Sprintf("/proc/self/task/%d/stat", tid)) |
| if os.IsNotExist(err) { |
| return false, true |
| } |
| // Check if it's a zombie thread. |
| state := bytes.Fields(stat)[2] |
| return !(len(state) == 1 && state[0] == 'Z'), true |
| } |
