Dear All,
I'm trying to write multithreading TCP Daemon which executes external program when new network connection arrives on a socket.
After accept() I'm doing fork() for initiating of new child process, in which will be executed external program. After child creation I'm doing fork() again,... (3 Replies)
I need to write a shell script which would take 2 arguments pid , userid. Then it should kill all the child process under it. If a child process is not killed then it should wait for 1 minute and should kill.
can anybody give me the idea to write it? (0 Replies)
hi, i want to write a code for forking 3 4 child. n wants that every child process one of the account from global account list. i wrote a program for that, but problem is every child is processing every account in list. what can me done to avoid it.
attaching code with it
#include <stdio.h>... (2 Replies)
Hi all,
I m writing an application, where i need to fork multiple childs and those child should handle particular task given to them.
More descriptive.
For example, suppose i have 4 Network, each network has multiple nodes. Now on the basis of network child should be forked and these child... (8 Replies)
Hello Friends,
Hope you are doing well.
I just need a help in executing multiple processes.
I've written a shell script which calls another scritps. But the problem is there are too many processes to run, and each process takes about a min to finish its execution.
So, I want to just... (3 Replies)
Hello guys!
I had seen some posts at this forum talking about my problem, but maybe my scenario is a little different, and I want other solutions.
I saw users of this forums saying that the way to shared sockets is using UNIX Sockets, but this is the only way in my scenario?
My Scenario:... (4 Replies)
Hi folks, I am writing a simple program to understand how fork() and waitpid works, but it doesn't seem that is working like I wanted.
if(fork()==0){
//el hijo
pid1=getpid();
printf("\nSoy el hijo %d",pid1);
}else {
//el padre
if (fork()==0) {
//el hijo
pid2=getpid();... (2 Replies)
I'm attempting to write a daemon that will start, stop, and monitor processes across a network of servers, meaning that a daemon would start on each server, attempt to connect to siblings at regular intervals (if there are unconnected siblings), and start services as remote dependencies are... (3 Replies)
Hey guys,
I have to make a C program that simulates this command :
cat (files here) | sort > file.txt
So, I start and create a pipe. Then create the first child. This first child will execute the Cat through the pipe. Then create a second child that will execute sort, with input from... (4 Replies)
Discussion started by: Poppo
4 Replies
LEARN ABOUT BSD
fork
FORK(3F)FORK(3F)NAME
fork - create a copy of this process
SYNOPSIS
integer function fork()
DESCRIPTION
Fork creates a copy of the calling process. The only distinction between the 2 processes is that the value returned to one of them
(referred to as the `parent' process) will be the process id of the copy. The copy is usually referred to as the `child' process. The
value returned to the `child' process will be zero.
All logical units open for writing are flushed before the fork to avoid duplication of the contents of I/O buffers in the external file(s).
If the returned value is negative, it indicates an error and will be the negation of the system error code. See perror(3F).
A corresponding exec routine has not been provided because there is no satisfactory way to retain open logical units across the exec. How-
ever, the usual function of fork/exec can be performed using system(3F).
FILES
/usr/lib/libU77.a
SEE ALSO fork(2), wait(3F), kill(3F), system(3F), perror(3F)4.2 Berkeley Distribution May 27, 1986 FORK(3F)