sigint Questions

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In Node.js servers, is there any difference between catching SIGTERM vs catching SIGINT? I thought processes were not supposed to be able to prevent shutdown upon a SIGINT? process.once('SIGINT'...
Therewith asked 25/2, 2017 at 0:31

1

I have the following program in Node.js on Ubuntu: process.on ("SIGINT", function(){ console.log("You clicked Ctrl+C!"); process.exit(1); }); while(1) { } When I click Ctrl+C, I see "^C" on ...
Jeweljeweler asked 23/3, 2014 at 17:54

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I need to do some useful things when my Express.js service is stopped by SIGINT. Using Express.js version 3.0.6, I understand that this should work: var express = require('express'); var app = ex...
Taper asked 17/1, 2013 at 4:39

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I've noticed that processes started with exec.Command get interrupted even when the interrupt call has been intercepted via signal.Notify. I've done the following example to show the issue: packag...
Magnetochemistry asked 16/10, 2015 at 8:11

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What does this statement below do? If anyone can explain this function I would really appreciate it. signal(SIGINT, SIG_DFL);
Machos asked 30/4, 2013 at 7:7

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I tried to spawn child process - vvp (https://linux.die.net/man/1/vvp). At the certain time, I need to send CTRL+C to that process. I am expecting that simulation will be interrupted and I get the...
Venereal asked 1/2, 2017 at 9:53

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I've got code similar to the following, using readline: #include <errno.h> #include <error.h> #include <getopt.h> #include <stdio.h> #include <stdlib.h> #include <...
Homerus asked 30/5, 2013 at 5:10

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I'm trying to catch SIGINT (or keyboard interrupt) in Python 2.7 program. This is how my Python test script test looks: #!/usr/bin/python import time try: time.sleep(100) except KeyboardInterru...
Barman asked 23/11, 2016 at 22:17

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In a terminal I start a background process A, which in turn starts a process B. Process B writes to the terminal (process A has passed B the correct TTY file descriptor). What I am afraid of, is i...
Gibbosity asked 16/11, 2016 at 4:3

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I am writing a bash script in which I wrote a handler to take care of when the user pressed Control+C, (by using trap interruptHandler SIGINT) but the SIGINT gets sent to both the bash script and t...
Gernhard asked 6/8, 2016 at 2:52

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I need to execute clean up functions in SIGINT handler, but I can't pass local data to it. Here an example: int main(int argc, char *argv[]) { struct database *db = db_cursor(); sockfd_t master...
Arlenarlena asked 4/6, 2016 at 14:4

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I wrote a Python 3.5 application using the cmd module. The last thing I would like to implement is proper handling of the CTRL-C (sigint) signal. I would like it to behave more or less the way Bash...
Obnoxious asked 22/5, 2016 at 18:44

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I'd like to enter the debugger upon typing ctrl-C (or sending a SIGINT). I have installed the debugger (I'm running Ruby 1.9.3) and verified that it works. I've added this to my setup files (this i...
Philoprogenitive asked 7/3, 2013 at 17:46

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I don't manage to understand why my SIGINT is never caught by the piece of code below. #!/usr/bin/env python from threading import Thread from time import sleep import signal class MyThread(Thread...
Leucopoiesis asked 15/4, 2015 at 21:1

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I'm developing an application (a service/daemon, really) on Linux in C++ that needs to interface with a piece of hardware. If my program doesn't release the resources for this peice of hardware cle...
Licastro asked 26/5, 2011 at 9:36

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#include<stdio.h> #include<signal.h> void handler(int signo) { printf("Into handler\n"); while(1); } int main() { struct sigaction act; act.sa_handler = handler; act.sa_flags = 0;...
Oyler asked 10/3, 2010 at 16:58

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When using module threading and class Thread(), I can't catch SIGINT (Ctrl + C in console) can not be caught. Why and what can I do? Simple test program: #!/usr/bin/env python import threading de...
Schlueter asked 4/10, 2010 at 9:15

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I have an CLI app that is seg faulting during termination (After sending a Ctrl-C) Pressing Ctrl-C in lldb naturally pauses execution. Then I try: (lldb)process signal SIGINT (lldb)process contin...
Snappy asked 21/8, 2014 at 15:26

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I'm using Node.js v0.10.31 on Windows 8.1 x64. I noticed that for a process (a node.js or python script) that handles the SIGINT handler, the handler is not called when the signal is sent from anot...
Khedive asked 26/9, 2014 at 7:1

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After so many years cruising on Linux, I am back on a freaking Windows environment. I use Ipython, and I launch it in git bash. It would be hard for me to use something else, since the environment ...
Nymphalid asked 15/5, 2014 at 12:19

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Following this discussion on how to preserve command line history between sessions, I defined the following alias: alias node='env NODE_NO_READLINE=1 rlwrap node' It works perfectly for the hist...
Shericesheridan asked 18/2, 2014 at 19:46

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Would someone please tell me why below bash statement cannot be terminated by Ctrl+c properly? $( { ( tail -fn0 /tmp/a.txt & )| while read line; do echo $line; done } 3>&1 ) I run thi...
Karyogamy asked 12/12, 2013 at 2:10

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I'm working on a Java application that utilises shutdown hooks in order to clean up on termination/interruption of the program, but I've noticed that Cygwin's implementation of CTRL-C doesn't seem ...
Limemann asked 1/8, 2012 at 10:49

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I have a function in bash which captures the keyboard interrupt. The function looks like this: user_interrupt(){ echo -e "\n\nKeyboard Interrupt detected." sleep 2 echo -e "\n Cleaning up..." ...
Whoop asked 20/9, 2013 at 9:25

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I am porting a Linux/gcc program under windows and implemented common exceptions handling for both. I was wondering what would be the equivalent of SIGINT signal for MinGW/gcc. Here is how I handl...
Seismo asked 30/5, 2013 at 0:31

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