I actually wanted to learn about the pipe() command and so I thought I'll fork() a child, take input of an integer array from user in parent process, send that array to child using pipe() and and print the array via child process.
While doing this, I am struck with taking input of the array in the parent process at the first place...Whenever I dynamically create an array, say of 5 elements, it ta
I am trying to rewrite a c program that do something like ls|wc|wc , I already did it for ls|wc , it worked fine, but I can't figure out why my program stops at the child in the indicated line.
You want to play with pipe/fork:#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
void work(void) {
int i;
for (i=0; i<512; i++) {
printf("Line %d\n", i);
}
}
int main(void) {
int pfds[2];
pid_t pid;
if (pipe(pfds) < 0) {
perror("pipe failed");
return EXIT_FAILURE;
}
pid = fork();
if (pid < 0) {
perror("fork failed&
I am studying System Programming for Linux.
See In Example1, the parent process is being called first ,where as in the Example 2
the child process has been called first .
I have a problem :
- For every message the client sends, the server creates a child process (fork()) and every single message is read by a different child.
The question :
- Is there any way I could erase the sockaddr_in structure , so that when the server goes one again in the infinite loop, it would wait for a different client and every child would have a different addr
I have a simple client/server program I am using for learning purposes.
I have it setup so that after server is setup and listening it than goes into a loop where it accepts incoming client connections.
According to wikipedia (which could be wrong)
When a fork() system call is issued, a copy of all the pages corresponding to the parent process is created, loaded into a separate memory location by the OS for the child process. But this is not needed in certain cases.
Hello everyone.
I'm pretty new to the topic of fork(), pipe() etc. All day I've been trying to make my code execute but it doesn't seem to be working the way I understand it. :wall:
Anyway, my task is:
Create a child process that will recive from its parent two intiger values.
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