202506262313 获取 goid

通过堆栈的字符串解析

func GoID() int {
    var buf [64]byte
    n := runtime.Stack(buf[:], false)
    // 得到id字符串
    idField := strings.Fields(strings.TrimPrefix(string(buf[:n]), "goroutine "))[0]
    id, err := strconv.Atoi(idField)
    if err != nil {
        panic(fmt.Sprintf("cannot get goroutine id: %v", err))
    }
    return id
}

通过第三方库，解析出运行时的goroutine结构

https://github.com/petermattis/goid