I'm trying to write a shell and I'm at the point where I want to ignore ctrl-c. I currently have my program ignoring SIGINT and printing a new line when the signal comes, but how can I prevent the ^C from being printed? When pressing ctrl-c, here is what I get: myshell>^C myshell>^C myshell>^C but I want: myshell> myshell> myshell>...
I have (in the past) written cross-platform (Windows/Unix) applications which, when started from the command line, handled a user-typed Ctrl-C combination in the same way (i.e. to terminate the application cleanly). Is it possible on Windows to send a Ctrl-C/SIGINT/equivalent to a process from another (unrelated) process to request that...
I've got a python script managing a gdb process on windows, and I need to be able to send a SIGINT to the spawned process in order to halt the target process (managed by gdb) It appears that there is only SIGTERM available in win32, but clearly if I run gdb from the console and Ctrl+C, it thinks it's receiving a SIGINT. Is there a wa...
Is there a way to stop the inferior without using Ctrl+C (or an equivalent signal sent from another process?) I'm using a windows platform and am managing GDB from another process, so with no notion of signals, it seems that there isn't a good way to break execution of my program when it's free running without any breakpoints. EDIT FOR...
I have a program running on a remote machine which expects to receive SIGINT from the parent. That program needs to receive that signal to function correctly. Unfortunately, if I run that process remotely over SSH and send SIGINT, the ssh process itself traps and interrupts rather than forwarding the signal. Here's an example of this be...
I want to use zbarcam but after reading a barcode, it doesn't stop. $ zbarcam | xvkbd -file - -window emacs EAN-13:6941428130969 CODE-128:3096140900557 Do you know how I can tell bash to kill zbarcam after printing on the stdout the first \n ? ...
How do I catch a ctrl-c event in C++? ...
I have a program which takes a long time to complete. I would like it to be able to catch SIGINT (ctrl-c) and call the self.save_work() method. As it stands, my signal_hander() does not work since self is not defined by the time the program reaches signal_handler(). How can I set it up so self.save_work gets called after a SIGINT? #...
I am trying to create a child process and then send SIGINT to the child without terminating the parent. I tried this: pid=fork(); if (!pid) { setpgrp(); cout<<"waiting...\n"; while(1); } else { cout<<"parent"; wait(NULL); } but when I hit C-c both process were terminated ...
I wrote this simple program: void sig_ha(int signum) { cout<<"received SIGINT\n"; } int main() { string name; struct sigaction newact, old; newact.sa_handler = sig_ha; sigemptyset(&newact.sa_mask); newact.sa_flags = 0; sigaction(SIGINT,&newact,&old); for (int i=0;i<5;i++) { cout<<"Enter text: "; getline(cin,name)...
Okay, I am writing a program that is doing some pretty heavy analysis and I would like to be able to stop it quickly. I added signal(SIGINT, terminate); to the beginning of main and defined terminate like: void terminate(int param){ cout << endl << endl << "Exit [N]ow, or [A]fter this url?" << endl; std::string answer; cin >> ...
#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; sigemptyset(& act.sa_mask); sigaction(SIGINT, &act, NULL); while(1); return 0; } After catching the KeyboardInterrupt on...
Hello, I am trying to terminate an openvpn task, spawned via NSTask. My question: Should I send ctrl+c (SIGINT) to the input NSPipe for my NSTask? inputPipe = [NSPipe pipe]; taskInput = [inputPipe fileHandleForWriting]; NSString dataString = @"\cC"; [taskInput writeData:[dataString dataUsingEncoding: [NSString defaultCStringEncoding]...
My python script intercepts the SIGINT signal with the signal process module to prevent premature exit, but this signal is passed to a subprocess that I open with Popen. is there some way to prevent passing this signal to the subprocess so that it also is not exited prematurely when the user presses ctrl-c? ...
I am using supervisord to spawn and manage a FastCGI application that I am writing in C for a linux target. I have a signal handler that gracefully exits my application when SIGINT is received. I have verified that the signal handler works as desired by running the app in a terminal window and issuing Ctrl-C to exit. When issuing a "sh...
I have a multithreaded program and use the signal.signal(SIGINT,func) to kill all threads when ctrl c is pressed. The question I have is this: I have to call signal.signal(...) from main in python. Do I have to call that on a loop or can I just set it once and whenever the user presses ctrl c, the signal will be caught? ...
Hello. When using threading module and Thread() class, SIGINT (Ctrl+C in console) could not be catched. Why and what can I do? Simple test program: #!/usr/bin/env python import threading def test(suffix): while True: print "test", suffix def main(): for i in (1, 2, 3, 4, 5): threading.Thread(target=test, ar...