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// 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
}
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