Pipe system call

#include <stdio.h>
#include <unistd.h>

int main()
{
    int pipeFds[2], status, pId;
    char writeMsg[20] = "hello world";
    char readMsg[20];

    status = pipe(pipeFds);

    if (status == -1)
    {
        printf("Unable to create pipe\n");
        return 1;
    }

    pId = fork();

    // child process
    if (pId == 0)
    {
        read(pipeFds[0], readMsg, sizeof(readMsg));
        printf("\nChild Process receives data\n%s\n", readMsg);
    }
    // parent process
    else if (pId > 0)
    {
        printf("Parent Process sends data\n%s", writeMsg);
        write(pipeFds[1], writeMsg, sizeof(writeMsg));
    }

    return 0;
}

Source: raw.githubusercontent.com

Similar codes

7 votes123 views1 answer
Write a binary file c
C
0 vote119 views1 answer
Declaring multiple pointers in one line c
C
0 vote144 views1 answer
Fungetc
C
0 vote120 views1 answer
C Program to Check Whether Character is Lowercase or Not using islower function
C
0 vote107 views2 answers
Get current used proxy windows 7
C
0 vote125 views1 answer
Get configuration script window 7
C
3 votes99 views3 answers
Remove element from np array
C
0 vote134 views1 answer
.env comment
C
0 vote122 views2 answers
C programming math formula
C
0 vote120 views1 answer
Memset c
C