kill

Fork, execlp and kill. Zombie process

由 ぃ、小莉子 提交于 2021-02-20 04:13:06
问题 I have a c program that executes another process (bash script) with fork and execlp. When I want to kill this process it moves to a zombiee state. Why is this?? Create a process: switch (PID_BackUp= fork()) { case -1: perror("fork"); printf("An error has occurred launching backup.sh script!\n"); break; case 0: execlp("/usr/local/bin/backup.sh", "/usr/local/bin/backup.sh", NULL, NULL, NULL); break; default: printf("backup.sh script launched correctly! PID: %d\n", PID_BackUp); break; } Kill a

kill 命令

由 耗尽温柔 提交于 2021-02-11 09:34:12
Linux中的kill命令用来终止指定的进程（terminate a process）的运行，是Linux下进程管理的常用命令。通常，终止一个前台进程可以使用Ctrl+C键，但是，对于一个后台进程就须用kill命令来终止，我们就需要先使用ps/pidof/pstree/top等工具获取进程PID，然后使用kill命令来杀掉该进程。kill命令是通过向进程发送指定的信号来结束相应进程的。在默认情况下，采用编号为15的TERM信号。TERM信号将终止所有不能捕获该信号的进程。对于那些可以捕获该信号的进程就要用编号为9的kill信号，强行“杀掉”该进程。 1． 命令格式： kill[参数][进程号] 2． 命令功能： 发送指定的信号到相应进程。不指定型号将发送SIGTERM（15）终止指定进程。如果任无法终止该程序可用“-KILL” 参数，其发送的信号为SIGKILL(9) ，将强制结束进程，使用ps命令或者jobs 命令可以查看进程号。root用户将影响用户的进程，非root用户只能影响自己的进程。 3． 命令参数： -l 信号，若果不加信号的编号参数，则使用“-l”参数会列出全部的信号名称 -a 当处理当前进程时，不限制命令名和进程号的对应关系 -p 指定kill 命令只打印相关进程的进程号，而不发送任何信号 -s 指定发送信号 -u 指定用户 注意： 1

Killing all processes and threads in python3.X

由 柔情痞子 提交于 2021-02-10 14:50:20
问题 I'm writing a UI wrapper for reading some info using esptool.py I have two active threads: UI and procesing - SerialReader. UI class has reference to the SerialReader and should stop SerialReader when it gets the exit command. The problem is that I call esptool command which gets stuck in trying to read data over serial connection. class SerialReaderProcess(threading.Thread): def __init__(self, window): super().__init__() self.window = window self.logger = window.logger self.window.set_thread

Python, Stop a Thread

由 半世苍凉 提交于 2020-12-07 05:11:21
问题 I'm trying to create a class that pings an ip address and keeps a record for connected/ not connected times. Since this class is a part of a GUI, I wish to stop this thread when asked by user. Found some Q&As regrading this issue, but neither one actually causes thread to stop. I'm trying to make a method, a part of this class that will stop self.run() Here's my Pinger class: class Pinger(threading.Thread): def __init__(self, address='', rate=1): threading.Thread.__init__(self) self.address =

Python, Stop a Thread

由 末鹿安然 提交于 2020-12-07 05:10:15
问题 I'm trying to create a class that pings an ip address and keeps a record for connected/ not connected times. Since this class is a part of a GUI, I wish to stop this thread when asked by user. Found some Q&As regrading this issue, but neither one actually causes thread to stop. I'm trying to make a method, a part of this class that will stop self.run() Here's my Pinger class: class Pinger(threading.Thread): def __init__(self, address='', rate=1): threading.Thread.__init__(self) self.address =

Python, Stop a Thread

由 时光怂恿深爱的人放手 提交于 2020-12-07 05:09:31
问题 I'm trying to create a class that pings an ip address and keeps a record for connected/ not connected times. Since this class is a part of a GUI, I wish to stop this thread when asked by user. Found some Q&As regrading this issue, but neither one actually causes thread to stop. I'm trying to make a method, a part of this class that will stop self.run() Here's my Pinger class: class Pinger(threading.Thread): def __init__(self, address='', rate=1): threading.Thread.__init__(self) self.address =
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