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

0 vote337 views1 answer
What is c
C
0 vote362 views1 answer
Fine print serial key
C
0 vote380 views1 answer
What is a while loop program in C to generate numbers from 0<25?
C
0 vote344 views1 answer
Arcolinux
C
0 vote363 views1 answer
C change value of const
C
33 votes532 views6 answers
Convert list of strings to string
C
0 vote331 views1 answer
Quick sort in c
C
0 vote368 views1 answer
Print 0 1 2 3 4 in c while loop
C
1 vote382 views1 answer
LINEAR AND BINARY SEARCH
C
0 vote347 views1 answer
Allocating memory for 1Mb text file in C
C