pid

用递归的方法实现无限极分类

和自甴很熟 提交于 2019-12-25 18:53:44
通常我在写项目的时候,在写一些例如商城分类的时候会实现对应分类的上级分类,或者其它项目部门管理的上级部门的时候一般就会用到无限极分类来进行分类 第一步:首先在数据表设计的时候,如果要实现无限极分类,一般我会在数据表多添加一个字段pid,下面我通过一张新建的数据表来说明一下, (1)建表: -- ---------------------------- -- Table structure for pid -- ---------------------------- DROP TABLE IF EXISTS `pid`; CREATE TABLE pid ( id tinyint unsigned NOT NULL AUTO_INCREMENT primary key comment '主键id', name varchar(32) NOT NULL, nickname varchar(32) DEFAULT NULL, pid tinyint(10) unsigned DEFAULT NULL, sort mediumint(10) unsigned DEFAULT 50 ) ENGINE=InnoDB DEFAULT CHARSET=utf8; (2)插入数据: -- ---------------------------- -- Records of pid -- -----

Detecting a stale pid file in a Unix environment

自古美人都是妖i 提交于 2019-12-25 14:14:12
问题 What is the standard, cross-platform way to detect stale pid file in a Unix environment? Say I would like to kill an old instance of my application, but I certainly don't want to disrupt an unrelated process with the same PID if that application has already exited. Now I found a way to do it on my Ubuntu (and thus probably other GNU/Linux based systems) - pseudocode below: if ( mtime(pid_file) < mtime( "/proc/"+pid ) ) { /* process started AFTER the file creation */ /* so it's not what we're

Detecting a stale pid file in a Unix environment

寵の児 提交于 2019-12-25 14:12:50
问题 What is the standard, cross-platform way to detect stale pid file in a Unix environment? Say I would like to kill an old instance of my application, but I certainly don't want to disrupt an unrelated process with the same PID if that application has already exited. Now I found a way to do it on my Ubuntu (and thus probably other GNU/Linux based systems) - pseudocode below: if ( mtime(pid_file) < mtime( "/proc/"+pid ) ) { /* process started AFTER the file creation */ /* so it's not what we're

linux获取pid脚本

﹥>﹥吖頭↗ 提交于 2019-12-25 13:12:34
在linux上获取pid然后杀死该进程的使用率还是很高的,使用以下脚本方便了许多,该脚本里没有杀死进程,只是做了一个输出,如果需要杀死进程,可以将" kill -9 $pid " 这行代码放开,就可以起到杀死进程的作用。 #!/bin/bash # 获取程序的pid, 在执行文件后面携带参数。 #例: # ./getPid.sh 3306 # 数字的正则 regular= * [ ! 0 - 9 ] * ; if [ " $1 " ! = " $regular " ] ; # 判断是否是数字 then # 是数字 pid=$ ( netstat - nlp | grep $1 | awk '{print $7}' | awk - F "/" '{print $1}' ) ; #获取端口的pid if [ - n " $pid " ] # 判断pid是否等于空 then # 不等空 echo $pid ; # kill -9 $pid; else #等于空 echo "该端口未启动" ; fi else # 不是数字 echo "参数必须是数字" ; fi 刚开始学,如果有哪不恰当,请指出,蟹蟹 来源: CSDN 作者: 阿浪、 链接: https://blog.csdn.net/weixin_42265053/article/details/103695243

Get pid of recursive subprocesses

天大地大妈咪最大 提交于 2019-12-25 08:16:11
问题 Scenario: subprocess created a subprocess and so on, how can i get it's pid? I used subprocess.popen to launch the first subprocess, for example word file, this word file generated a new subprocess, how can i get it's pid? 回答1: Using psutil: parent = psutil.Process(parent_pid) children = parent.children() # all child pids can be accessed using the pid attribute child_pids = [p.pid for p in children] 来源: https://stackoverflow.com/questions/40509813/get-pid-of-recursive-subprocesses

Tunning gain table to match two-curves

余生颓废 提交于 2019-12-25 06:34:10
问题 I have two data set, let us name them "actual speed" and "desired speed". My main objective is to match actual speed with the desired speed. But for doing that in my case, I need to tune FF(1x10), Integral(10x8) and Proportional gain table(10x8). My approach till now was as follows:- First, start the iteration with having 0.1 as the initial value in the first cells(FF[0]) of the FF table Then find the R-square or Co-relation between two dataset( i.e. Actual Speed and Desired Speed) Increment

Python subprocess.popen wrong pid

时间秒杀一切 提交于 2019-12-25 03:21:37
问题 I'm trying to write a program that monitors gameservers in Python. For that, n need to look up whether the process of the gameserver, which is started in a screen session is still running, and for that, i need it's pid, however, i don't get the pid of the screen session, i get a pid that only exists till the popen session is active. The pid of the screen session is one pid higher than the pid popen's .pid() method returns. I know that this could be caused through shell=True, but i'm running

Get PID of COM server

末鹿安然 提交于 2019-12-25 00:22:34
问题 I create a com object in powershell like so: $application = new-object -ComObject "word.application" Is there a way to get the PID (or some other unique identifier) of the launched MS Word instance? I want to check if the program is blocked e.g. by modal dialogs asking for passwords, and I can't do it from whithin PowerShell. 回答1: Ok, I found out how to do it, we need to call the Windows API. The trick is to get the HWND, which is exposed in Excel and Powerpoint, but not in Word. The only way

Identify a process started in VB.Net to be able to kill it and all its children later

一世执手 提交于 2019-12-24 10:48:38
问题 When starting a process in VB.Net, I would like to be able to identify it to later kill it and all its children if necessary. I launch my process this way : Dim mainProcessHandler As New ProcessStartInfo() Dim mainProcess As Process mainProcessHandler.FileName = "something_01out18.bat" mainProcessHandler.Arguments = "-d" mainProcessHandler.WindowStyle = ProcessWindowStyle.Hidden mainProcess = Process.Start(mainProcessHandler) If I do a mainProcess .Kill() it will close all cmd windows opened.