10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I would like to ask, if is it possible to quit running loop in the script any other way than catching the trap signal. Ctrl-C ends only current running instance of process but not whole script. Any clues? (3 Replies)
Discussion started by: smoofy
3 Replies
2. Shell Programming and Scripting
Hi everyone
i am very new to linux , working on bash shell.
I am trying to solve the given problem
1. Create a process and then create children using fork
2. Check the Status of the application for successful running.
3. Kill all the process(threads) except parent and first child... (2 Replies)
Discussion started by: vizz_k
2 Replies
3. Emergency UNIX and Linux Support
Hello, everyone.
Here's a program:
pid_t pid = fork();
if (0 == pid) // child process
{
execvp ...;
}
I send a signal (such as SIGINT) to the parent process, the child process receive the signal as well as the parent process.
However I don't want to child process to receive the... (7 Replies)
Discussion started by: jackliang
7 Replies
4. Programming
Hi, i want that the parent process start before the child, this code doesn't work,
if the child start before the parent it wait for signal, then the father send the signal SIGALRM and the child catch it and call printf;
else the father call printf and send the signal to the child that call its... (1 Reply)
Discussion started by: blob84
1 Replies
5. Programming
Hello. I want to make a child do some stuff,wait,then the parent does some stuff and then child does some stuff and waits again.I have made the following but it does not work.Can anybody help me?
pid1 = fork();
if (pid1 == -1)
{
perror("Can't create child\n");
... (18 Replies)
Discussion started by: Cuervo
18 Replies
6. Programming
I'm trying to do a program that makes activate an signal (SINGALARM) when the next child of a son appears but this not works.
I have to caught the next child o the other (pid), to send a singnal which inform a menssage.
It's anything worng in the code?
thanks.
the code:
#include... (2 Replies)
Discussion started by: marmaster
2 Replies
7. Shell Programming and Scripting
Hello all!
I'm writing a script that will catch when an outside process crashes (SIGHUP, right?) without having to loop into infinity.
With that in mind, I came across the trap utility and thought if could be used to monitor another process other than it's own. But from what I've read, I'm... (1 Reply)
Discussion started by: mashiox
1 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I facing a problem in handling signals between parent process communication. I am trying to send a signal(SIGINT) from child to parent. I am using kill function to do so and I am trying to read the signal using sigaction(). But the program is ending abruptly and I am not able to figure out... (4 Replies)
Discussion started by: vkn_1985
4 Replies
9. Programming
Hi!
I want to catch all signals that my program receives print their name and then execute the default handler.
Can you help me on that?
I've tried the following code:
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
void (*hnd)(int i);
char signals =
{
"SIGHUP",... (7 Replies)
Discussion started by: dark_knight
7 Replies
10. Programming
Hi,
Recently I was reading some c coding by some colleagues and I noticed that the above trend. They will create a pipe for the process then they will use the standard signal handler to capture a particular signal and write that signal to the pipe. On the other end, the process will read the... (7 Replies)
Discussion started by: joseph_ng
7 Replies