Process « pipe « C Q&A

1. Forking with Pipes    stackoverflow.com

I have tried to do fork() and piping in main and it works perfectly fine but when I try to implement it in a function for some reason I don't get ...

2. C homework assignment, pipes and processes    stackoverflow.com

I've asked many, many C questions here on stackoverflow over the past few days. I feel like I'm at the final one. My assignment works ALMOST perfectly. Here is the premise: Write ...

3. Ring of two processes using a pipe    stackoverflow.com

I have this example of pipe and dup use. It is supposed to create a ring of two processes connected by a pipe. Here is the code:

#include <unistd.h>

#define READ 0
#define WRITE ...

4. Do I have to make a new pipe for every pair of processes in C?    stackoverflow.com

If I have 4 processes that I want to pipe:

process1  |  process2  |  process3  |  process4

int ...

5. Process, pipes    cboard.cprogramming.com

Two processes shall communicate with each other. After two seconds the father should send a message to his son, if he's still alive and vice versa. The user can kill one of the two processes entering SIGUSR1 (kill Father) and SIGUSR2 (kill Son). If one process has been killed the other "commits suicide". I've programmed this so far but it's not ...

6. Process and Pipes    cboard.cprogramming.com

#include #include #include #include #include #include int main() { int pid, fd[2], ret; pipe(fd); pid = fork(); if (pid==0) { dup2(fd[1], STDOUT_FILENO); close(fd[0]); close(fd[1]); ret = execlp ("ps", "ps", "-aux", NULL); } else { dup2(fd[0], STDIN_FILENO); close(fd[0]); close(fd[1]); ret=execlp("sort", "sort", "-n", NULL); } return 0; }

7. Same pipe to multiple processes?    cboard.cprogramming.com

Code: #include #include #include #include #include int main(int argc, char **argv) { int pfd[2]; int pid[2]; int status; char buf[6]; if (pipe(pfd) < 0) { fprintf(stderr, "Error creating pipe.\n"); exit(0); } /* First Child */ if ((pid[0] = fork())== 0) { /* Check for first message */ read(pfd[0], buf, 5); buf[5] = '\0'; printf("Child 1's first ...

8. Sychronize process using pipe?    forums.devshed.com

can pipe sychronize thread or process? because I'm trying to create 5 thread or process that can take an integer value and display it. each time a thread display the value, it has to be decrement it by 1 until the value has reach 0. The problem that I'm having is how can that integer value be transfer to those 5 ...